./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem10_label30.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/Problem10_label30.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 eb3589f7ac8cc36dbc174674ff662c7d01ff9c6a634a07252076bdde63255d7d --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-22 12:18:31,469 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 12:18:31,470 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 12:18:31,500 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 12:18:31,506 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 12:18:31,508 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 12:18:31,509 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 12:18:31,511 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 12:18:31,512 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 12:18:31,513 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 12:18:31,514 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 12:18:31,515 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 12:18:31,516 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 12:18:31,518 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 12:18:31,519 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 12:18:31,521 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 12:18:31,523 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 12:18:31,528 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 12:18:31,529 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 12:18:31,530 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 12:18:31,533 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 12:18:31,537 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 12:18:31,537 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 12:18:31,538 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 12:18:31,540 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 12:18:31,543 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 12:18:31,547 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 12:18:31,547 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 12:18:31,548 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 12:18:31,549 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 12:18:31,550 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 12:18:31,550 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 12:18:31,551 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 12:18:31,552 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 12:18:31,553 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 12:18:31,554 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 12:18:31,554 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 12:18:31,555 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 12:18:31,555 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 12:18:31,555 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 12:18:31,556 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 12:18:31,558 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 12:18:31,559 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-22 12:18:31,586 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 12:18:31,587 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 12:18:31,587 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 12:18:31,587 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 12:18:31,588 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 12:18:31,588 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 12:18:31,589 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 12:18:31,589 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 12:18:31,589 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 12:18:31,590 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 12:18:31,590 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 12:18:31,591 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 12:18:31,591 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 12:18:31,591 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 12:18:31,591 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 12:18:31,591 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 12:18:31,592 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 12:18:31,592 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 12:18:31,592 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 12:18:31,592 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 12:18:31,592 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 12:18:31,593 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 12:18:31,593 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 12:18:31,593 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 12:18:31,593 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 12:18:31,593 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 12:18:31,594 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 12:18:31,594 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 12:18:31,594 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 12:18:31,594 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 12:18:31,595 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 12:18:31,595 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 12:18:31,595 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 12:18:31,595 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eb3589f7ac8cc36dbc174674ff662c7d01ff9c6a634a07252076bdde63255d7d [2022-07-22 12:18:31,844 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 12:18:31,872 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 12:18:31,874 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 12:18:31,875 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 12:18:31,875 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 12:18:31,876 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem10_label30.c [2022-07-22 12:18:31,942 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b646c447b/9f0e75b1622d42679333ce41a4b24ff4/FLAGbd6f79ed8 [2022-07-22 12:18:32,413 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 12:18:32,413 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem10_label30.c [2022-07-22 12:18:32,444 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b646c447b/9f0e75b1622d42679333ce41a4b24ff4/FLAGbd6f79ed8 [2022-07-22 12:18:32,965 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b646c447b/9f0e75b1622d42679333ce41a4b24ff4 [2022-07-22 12:18:32,969 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 12:18:32,970 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 12:18:32,971 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 12:18:32,972 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 12:18:32,977 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 12:18:32,977 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 12:18:32" (1/1) ... [2022-07-22 12:18:32,978 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c3b3db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:18:32, skipping insertion in model container [2022-07-22 12:18:32,979 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 12:18:32" (1/1) ... [2022-07-22 12:18:32,985 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 12:18:33,021 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 12:18:33,209 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/Problem10_label30.c[4019,4032] [2022-07-22 12:18:33,336 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 12:18:33,344 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 12:18:33,363 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/Problem10_label30.c[4019,4032] [2022-07-22 12:18:33,438 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 12:18:33,450 INFO L208 MainTranslator]: Completed translation [2022-07-22 12:18:33,450 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:18:33 WrapperNode [2022-07-22 12:18:33,450 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 12:18:33,452 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 12:18:33,452 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 12:18:33,452 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 12:18:33,458 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:18:33" (1/1) ... [2022-07-22 12:18:33,480 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:18:33" (1/1) ... [2022-07-22 12:18:33,553 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 597 [2022-07-22 12:18:33,553 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 12:18:33,554 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 12:18:33,554 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 12:18:33,555 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 12:18:33,562 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:18:33" (1/1) ... [2022-07-22 12:18:33,562 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:18:33" (1/1) ... [2022-07-22 12:18:33,578 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:18:33" (1/1) ... [2022-07-22 12:18:33,579 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:18:33" (1/1) ... [2022-07-22 12:18:33,608 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:18:33" (1/1) ... [2022-07-22 12:18:33,626 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:18:33" (1/1) ... [2022-07-22 12:18:33,634 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:18:33" (1/1) ... [2022-07-22 12:18:33,647 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 12:18:33,648 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 12:18:33,648 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 12:18:33,648 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 12:18:33,653 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:18:33" (1/1) ... [2022-07-22 12:18:33,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 12:18:33,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 12:18:33,685 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 12:18:33,711 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 12:18:33,727 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 12:18:33,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 12:18:33,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 12:18:33,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 12:18:33,789 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 12:18:33,791 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 12:18:34,809 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 12:18:34,819 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 12:18:34,819 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-22 12:18:34,822 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 12:18:34 BoogieIcfgContainer [2022-07-22 12:18:34,822 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 12:18:34,824 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 12:18:34,824 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 12:18:34,827 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 12:18:34,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 12:18:32" (1/3) ... [2022-07-22 12:18:34,828 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2948d08c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 12:18:34, skipping insertion in model container [2022-07-22 12:18:34,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:18:33" (2/3) ... [2022-07-22 12:18:34,828 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2948d08c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 12:18:34, skipping insertion in model container [2022-07-22 12:18:34,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 12:18:34" (3/3) ... [2022-07-22 12:18:34,830 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label30.c [2022-07-22 12:18:34,842 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 12:18:34,843 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-22 12:18:34,897 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 12:18:34,904 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@1dbbae92, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@433be8dc [2022-07-22 12:18:34,904 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-22 12:18:34,909 INFO L276 IsEmpty]: Start isEmpty. Operand has 206 states, 204 states have (on average 1.6862745098039216) internal successors, (344), 205 states have internal predecessors, (344), 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 12:18:34,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-07-22 12:18:34,916 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 12:18:34,916 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] [2022-07-22 12:18:34,917 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 12:18:34,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 12:18:34,922 INFO L85 PathProgramCache]: Analyzing trace with hash 1089129850, now seen corresponding path program 1 times [2022-07-22 12:18:34,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 12:18:34,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805238764] [2022-07-22 12:18:34,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:18:34,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 12:18:35,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:18:35,210 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 12:18:35,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 12:18:35,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805238764] [2022-07-22 12:18:35,212 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805238764] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 12:18:35,212 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 12:18:35,212 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 12:18:35,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115596595] [2022-07-22 12:18:35,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 12:18:35,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 12:18:35,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 12:18:35,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 12:18:35,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 12:18:35,253 INFO L87 Difference]: Start difference. First operand has 206 states, 204 states have (on average 1.6862745098039216) internal successors, (344), 205 states have internal predecessors, (344), 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 8.5) internal successors, (34), 3 states have internal predecessors, (34), 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 12:18:36,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 12:18:36,387 INFO L93 Difference]: Finished difference Result 696 states and 1248 transitions. [2022-07-22 12:18:36,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-22 12:18:36,390 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 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 34 [2022-07-22 12:18:36,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 12:18:36,402 INFO L225 Difference]: With dead ends: 696 [2022-07-22 12:18:36,402 INFO L226 Difference]: Without dead ends: 421 [2022-07-22 12:18:36,406 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 12:18:36,409 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 477 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 684 mSolverCounterSat, 294 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 477 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 978 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 294 IncrementalHoareTripleChecker+Valid, 684 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-22 12:18:36,410 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [477 Valid, 44 Invalid, 978 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [294 Valid, 684 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-22 12:18:36,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2022-07-22 12:18:36,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 421. [2022-07-22 12:18:36,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 420 states have (on average 1.3833333333333333) internal successors, (581), 420 states have internal predecessors, (581), 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 12:18:36,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 581 transitions. [2022-07-22 12:18:36,464 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 581 transitions. Word has length 34 [2022-07-22 12:18:36,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 12:18:36,465 INFO L495 AbstractCegarLoop]: Abstraction has 421 states and 581 transitions. [2022-07-22 12:18:36,465 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 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 12:18:36,465 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 581 transitions. [2022-07-22 12:18:36,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-07-22 12:18:36,470 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 12:18:36,471 INFO L195 NwaCegarLoop]: trace histogram [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, 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 12:18:36,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-22 12:18:36,472 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 12:18:36,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 12:18:36,472 INFO L85 PathProgramCache]: Analyzing trace with hash -1020793692, now seen corresponding path program 1 times [2022-07-22 12:18:36,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 12:18:36,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683496209] [2022-07-22 12:18:36,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:18:36,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 12:18:36,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:18:36,823 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 12:18:36,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 12:18:36,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683496209] [2022-07-22 12:18:36,824 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683496209] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 12:18:36,825 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 12:18:36,825 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 12:18:36,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584117556] [2022-07-22 12:18:36,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 12:18:36,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 12:18:36,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 12:18:36,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 12:18:36,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 12:18:36,829 INFO L87 Difference]: Start difference. First operand 421 states and 581 transitions. Second operand has 4 states, 4 states have (on average 38.0) internal successors, (152), 3 states have internal predecessors, (152), 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 12:18:37,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 12:18:37,417 INFO L93 Difference]: Finished difference Result 706 states and 1016 transitions. [2022-07-22 12:18:37,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 12:18:37,420 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 3 states have internal predecessors, (152), 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 152 [2022-07-22 12:18:37,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 12:18:37,422 INFO L225 Difference]: With dead ends: 706 [2022-07-22 12:18:37,422 INFO L226 Difference]: Without dead ends: 426 [2022-07-22 12:18:37,423 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 12:18:37,424 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 90 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-22 12:18:37,425 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 92 Invalid, 575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 507 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-22 12:18:37,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2022-07-22 12:18:37,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 421. [2022-07-22 12:18:37,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 420 states have (on average 1.3714285714285714) internal successors, (576), 420 states have internal predecessors, (576), 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 12:18:37,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 576 transitions. [2022-07-22 12:18:37,460 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 576 transitions. Word has length 152 [2022-07-22 12:18:37,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 12:18:37,460 INFO L495 AbstractCegarLoop]: Abstraction has 421 states and 576 transitions. [2022-07-22 12:18:37,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 3 states have internal predecessors, (152), 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 12:18:37,461 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 576 transitions. [2022-07-22 12:18:37,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-07-22 12:18:37,479 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 12:18:37,480 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, 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] [2022-07-22 12:18:37,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-22 12:18:37,480 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 12:18:37,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 12:18:37,481 INFO L85 PathProgramCache]: Analyzing trace with hash -1086798988, now seen corresponding path program 1 times [2022-07-22 12:18:37,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 12:18:37,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489548253] [2022-07-22 12:18:37,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:18:37,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 12:18:37,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:18:37,710 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 12:18:37,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 12:18:37,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489548253] [2022-07-22 12:18:37,710 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489548253] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 12:18:37,711 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 12:18:37,711 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 12:18:37,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877780265] [2022-07-22 12:18:37,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 12:18:37,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 12:18:37,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 12:18:37,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 12:18:37,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 12:18:37,715 INFO L87 Difference]: Start difference. First operand 421 states and 576 transitions. Second operand has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 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 12:18:38,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 12:18:38,327 INFO L93 Difference]: Finished difference Result 840 states and 1220 transitions. [2022-07-22 12:18:38,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 12:18:38,328 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 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 178 [2022-07-22 12:18:38,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 12:18:38,331 INFO L225 Difference]: With dead ends: 840 [2022-07-22 12:18:38,331 INFO L226 Difference]: Without dead ends: 560 [2022-07-22 12:18:38,332 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 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 12:18:38,333 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 87 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-22 12:18:38,334 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 19 Invalid, 455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-22 12:18:38,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2022-07-22 12:18:38,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 560. [2022-07-22 12:18:38,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 560 states, 559 states have (on average 1.3774597495527727) internal successors, (770), 559 states have internal predecessors, (770), 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 12:18:38,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 770 transitions. [2022-07-22 12:18:38,386 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 770 transitions. Word has length 178 [2022-07-22 12:18:38,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 12:18:38,387 INFO L495 AbstractCegarLoop]: Abstraction has 560 states and 770 transitions. [2022-07-22 12:18:38,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 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 12:18:38,388 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 770 transitions. [2022-07-22 12:18:38,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-07-22 12:18:38,401 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 12:18:38,401 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, 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, 1, 1, 1, 1] [2022-07-22 12:18:38,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-22 12:18:38,402 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 12:18:38,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 12:18:38,403 INFO L85 PathProgramCache]: Analyzing trace with hash 543736396, now seen corresponding path program 1 times [2022-07-22 12:18:38,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 12:18:38,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413771948] [2022-07-22 12:18:38,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:18:38,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 12:18:38,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:18:38,589 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 12:18:38,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 12:18:38,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413771948] [2022-07-22 12:18:38,602 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413771948] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 12:18:38,602 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 12:18:38,602 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 12:18:38,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123574540] [2022-07-22 12:18:38,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 12:18:38,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 12:18:38,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 12:18:38,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 12:18:38,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 12:18:38,604 INFO L87 Difference]: Start difference. First operand 560 states and 770 transitions. Second operand has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 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 12:18:39,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 12:18:39,105 INFO L93 Difference]: Finished difference Result 1257 states and 1803 transitions. [2022-07-22 12:18:39,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 12:18:39,106 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 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 194 [2022-07-22 12:18:39,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 12:18:39,109 INFO L225 Difference]: With dead ends: 1257 [2022-07-22 12:18:39,110 INFO L226 Difference]: Without dead ends: 838 [2022-07-22 12:18:39,111 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 12:18:39,115 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 52 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-22 12:18:39,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 213 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-22 12:18:39,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2022-07-22 12:18:39,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 838. [2022-07-22 12:18:39,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 838 states, 837 states have (on average 1.2771804062126644) internal successors, (1069), 837 states have internal predecessors, (1069), 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 12:18:39,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 838 states to 838 states and 1069 transitions. [2022-07-22 12:18:39,140 INFO L78 Accepts]: Start accepts. Automaton has 838 states and 1069 transitions. Word has length 194 [2022-07-22 12:18:39,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 12:18:39,140 INFO L495 AbstractCegarLoop]: Abstraction has 838 states and 1069 transitions. [2022-07-22 12:18:39,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 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 12:18:39,141 INFO L276 IsEmpty]: Start isEmpty. Operand 838 states and 1069 transitions. [2022-07-22 12:18:39,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2022-07-22 12:18:39,144 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 12:18:39,145 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, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 12:18:39,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-22 12:18:39,145 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 12:18:39,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 12:18:39,147 INFO L85 PathProgramCache]: Analyzing trace with hash 1843972122, now seen corresponding path program 1 times [2022-07-22 12:18:39,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 12:18:39,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996799438] [2022-07-22 12:18:39,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:18:39,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 12:18:39,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:18:39,535 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 12:18:39,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 12:18:39,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996799438] [2022-07-22 12:18:39,536 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996799438] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 12:18:39,536 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 12:18:39,537 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-22 12:18:39,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703872441] [2022-07-22 12:18:39,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 12:18:39,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 12:18:39,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 12:18:39,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 12:18:39,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-07-22 12:18:39,554 INFO L87 Difference]: Start difference. First operand 838 states and 1069 transitions. Second operand has 7 states, 7 states have (on average 29.0) internal successors, (203), 6 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 12:18:40,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 12:18:40,011 INFO L93 Difference]: Finished difference Result 1590 states and 2047 transitions. [2022-07-22 12:18:40,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-22 12:18:40,012 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 29.0) internal successors, (203), 6 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 203 [2022-07-22 12:18:40,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 12:18:40,015 INFO L225 Difference]: With dead ends: 1590 [2022-07-22 12:18:40,015 INFO L226 Difference]: Without dead ends: 838 [2022-07-22 12:18:40,016 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-07-22 12:18:40,017 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 201 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 524 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-22 12:18:40,018 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 20 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 524 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-22 12:18:40,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2022-07-22 12:18:40,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 838. [2022-07-22 12:18:40,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 838 states, 837 states have (on average 1.2724014336917562) internal successors, (1065), 837 states have internal predecessors, (1065), 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 12:18:40,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 838 states to 838 states and 1065 transitions. [2022-07-22 12:18:40,043 INFO L78 Accepts]: Start accepts. Automaton has 838 states and 1065 transitions. Word has length 203 [2022-07-22 12:18:40,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 12:18:40,044 INFO L495 AbstractCegarLoop]: Abstraction has 838 states and 1065 transitions. [2022-07-22 12:18:40,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 29.0) internal successors, (203), 6 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 12:18:40,047 INFO L276 IsEmpty]: Start isEmpty. Operand 838 states and 1065 transitions. [2022-07-22 12:18:40,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2022-07-22 12:18:40,049 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 12:18:40,050 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, 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, 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] [2022-07-22 12:18:40,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-22 12:18:40,051 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 12:18:40,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 12:18:40,051 INFO L85 PathProgramCache]: Analyzing trace with hash -317327168, now seen corresponding path program 1 times [2022-07-22 12:18:40,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 12:18:40,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220100082] [2022-07-22 12:18:40,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:18:40,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 12:18:40,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:18:40,217 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 156 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 12:18:40,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 12:18:40,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220100082] [2022-07-22 12:18:40,218 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220100082] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 12:18:40,218 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 12:18:40,218 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 12:18:40,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381641739] [2022-07-22 12:18:40,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 12:18:40,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 12:18:40,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 12:18:40,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 12:18:40,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 12:18:40,220 INFO L87 Difference]: Start difference. First operand 838 states and 1065 transitions. Second operand has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 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 12:18:41,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 12:18:41,076 INFO L93 Difference]: Finished difference Result 1674 states and 2188 transitions. [2022-07-22 12:18:41,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 12:18:41,077 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 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 239 [2022-07-22 12:18:41,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 12:18:41,080 INFO L225 Difference]: With dead ends: 1674 [2022-07-22 12:18:41,081 INFO L226 Difference]: Without dead ends: 977 [2022-07-22 12:18:41,082 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 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 12:18:41,082 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 74 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-22 12:18:41,083 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 14 Invalid, 449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-22 12:18:41,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 977 states. [2022-07-22 12:18:41,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 977 to 977. [2022-07-22 12:18:41,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 977 states, 976 states have (on average 1.283811475409836) internal successors, (1253), 976 states have internal predecessors, (1253), 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 12:18:41,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 977 states to 977 states and 1253 transitions. [2022-07-22 12:18:41,106 INFO L78 Accepts]: Start accepts. Automaton has 977 states and 1253 transitions. Word has length 239 [2022-07-22 12:18:41,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 12:18:41,107 INFO L495 AbstractCegarLoop]: Abstraction has 977 states and 1253 transitions. [2022-07-22 12:18:41,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 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 12:18:41,107 INFO L276 IsEmpty]: Start isEmpty. Operand 977 states and 1253 transitions. [2022-07-22 12:18:41,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2022-07-22 12:18:41,110 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 12:18:41,110 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, 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, 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] [2022-07-22 12:18:41,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-22 12:18:41,111 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 12:18:41,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 12:18:41,111 INFO L85 PathProgramCache]: Analyzing trace with hash 1748948521, now seen corresponding path program 1 times [2022-07-22 12:18:41,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 12:18:41,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907099595] [2022-07-22 12:18:41,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:18:41,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 12:18:41,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:18:41,273 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 78 proven. 95 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 12:18:41,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 12:18:41,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907099595] [2022-07-22 12:18:41,274 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907099595] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 12:18:41,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1059571640] [2022-07-22 12:18:41,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:18:41,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 12:18:41,275 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 12:18:41,280 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 12:18:41,320 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 12:18:41,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:18:41,463 INFO L263 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 12:18:41,472 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 12:18:41,823 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2022-07-22 12:18:41,823 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 12:18:41,823 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1059571640] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 12:18:41,823 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 12:18:41,824 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-07-22 12:18:41,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296606417] [2022-07-22 12:18:41,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 12:18:41,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 12:18:41,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 12:18:41,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 12:18:41,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-07-22 12:18:41,825 INFO L87 Difference]: Start difference. First operand 977 states and 1253 transitions. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 2 states have internal predecessors, (152), 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 12:18:42,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 12:18:42,256 INFO L93 Difference]: Finished difference Result 1952 states and 2559 transitions. [2022-07-22 12:18:42,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 12:18:42,256 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 2 states have internal predecessors, (152), 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 261 [2022-07-22 12:18:42,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 12:18:42,260 INFO L225 Difference]: With dead ends: 1952 [2022-07-22 12:18:42,261 INFO L226 Difference]: Without dead ends: 1116 [2022-07-22 12:18:42,262 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 260 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-07-22 12:18:42,263 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 60 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-22 12:18:42,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 34 Invalid, 414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 333 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-22 12:18:42,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1116 states. [2022-07-22 12:18:42,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1116 to 1116. [2022-07-22 12:18:42,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1116 states, 1115 states have (on average 1.2116591928251121) internal successors, (1351), 1115 states have internal predecessors, (1351), 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 12:18:42,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1116 states to 1116 states and 1351 transitions. [2022-07-22 12:18:42,286 INFO L78 Accepts]: Start accepts. Automaton has 1116 states and 1351 transitions. Word has length 261 [2022-07-22 12:18:42,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 12:18:42,287 INFO L495 AbstractCegarLoop]: Abstraction has 1116 states and 1351 transitions. [2022-07-22 12:18:42,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 2 states have internal predecessors, (152), 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 12:18:42,287 INFO L276 IsEmpty]: Start isEmpty. Operand 1116 states and 1351 transitions. [2022-07-22 12:18:42,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2022-07-22 12:18:42,291 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 12:18:42,292 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, 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, 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 12:18:42,321 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 12:18:42,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 12:18:42,515 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 12:18:42,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 12:18:42,516 INFO L85 PathProgramCache]: Analyzing trace with hash 2084443342, now seen corresponding path program 1 times [2022-07-22 12:18:42,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 12:18:42,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934970491] [2022-07-22 12:18:42,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:18:42,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 12:18:42,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:18:42,637 INFO L134 CoverageAnalysis]: Checked inductivity of 332 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2022-07-22 12:18:42,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 12:18:42,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934970491] [2022-07-22 12:18:42,638 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934970491] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 12:18:42,638 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 12:18:42,638 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 12:18:42,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517060853] [2022-07-22 12:18:42,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 12:18:42,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 12:18:42,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 12:18:42,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 12:18:42,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 12:18:42,641 INFO L87 Difference]: Start difference. First operand 1116 states and 1351 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 12:18:43,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 12:18:43,039 INFO L93 Difference]: Finished difference Result 2369 states and 2928 transitions. [2022-07-22 12:18:43,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 12:18:43,039 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 306 [2022-07-22 12:18:43,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 12:18:43,044 INFO L225 Difference]: With dead ends: 2369 [2022-07-22 12:18:43,044 INFO L226 Difference]: Without dead ends: 1394 [2022-07-22 12:18:43,045 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 12:18:43,046 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 121 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-22 12:18:43,046 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 190 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-22 12:18:43,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1394 states. [2022-07-22 12:18:43,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1394 to 1255. [2022-07-22 12:18:43,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1255 states, 1254 states have (on average 1.2001594896331738) internal successors, (1505), 1254 states have internal predecessors, (1505), 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 12:18:43,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 1505 transitions. [2022-07-22 12:18:43,074 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 1505 transitions. Word has length 306 [2022-07-22 12:18:43,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 12:18:43,075 INFO L495 AbstractCegarLoop]: Abstraction has 1255 states and 1505 transitions. [2022-07-22 12:18:43,075 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 12:18:43,075 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 1505 transitions. [2022-07-22 12:18:43,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2022-07-22 12:18:43,079 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 12:18:43,079 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, 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, 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] [2022-07-22 12:18:43,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-22 12:18:43,080 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 12:18:43,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 12:18:43,080 INFO L85 PathProgramCache]: Analyzing trace with hash 1252534079, now seen corresponding path program 1 times [2022-07-22 12:18:43,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 12:18:43,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424694618] [2022-07-22 12:18:43,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:18:43,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 12:18:43,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:18:43,232 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 301 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-07-22 12:18:43,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 12:18:43,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424694618] [2022-07-22 12:18:43,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424694618] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 12:18:43,233 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 12:18:43,233 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 12:18:43,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156952493] [2022-07-22 12:18:43,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 12:18:43,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 12:18:43,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 12:18:43,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 12:18:43,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-22 12:18:43,235 INFO L87 Difference]: Start difference. First operand 1255 states and 1505 transitions. Second operand has 4 states, 4 states have (on average 70.25) internal successors, (281), 3 states have internal predecessors, (281), 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 12:18:43,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 12:18:43,909 INFO L93 Difference]: Finished difference Result 3620 states and 4354 transitions. [2022-07-22 12:18:43,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-22 12:18:43,910 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 70.25) internal successors, (281), 3 states have internal predecessors, (281), 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 312 [2022-07-22 12:18:43,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 12:18:43,918 INFO L225 Difference]: With dead ends: 3620 [2022-07-22 12:18:43,919 INFO L226 Difference]: Without dead ends: 2506 [2022-07-22 12:18:43,921 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 12:18:43,924 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 109 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 758 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 837 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 758 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-22 12:18:43,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 48 Invalid, 837 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 758 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-22 12:18:43,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2506 states. [2022-07-22 12:18:43,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2506 to 2228. [2022-07-22 12:18:43,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2228 states, 2227 states have (on average 1.1814099685675796) internal successors, (2631), 2227 states have internal predecessors, (2631), 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 12:18:43,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2228 states to 2228 states and 2631 transitions. [2022-07-22 12:18:43,969 INFO L78 Accepts]: Start accepts. Automaton has 2228 states and 2631 transitions. Word has length 312 [2022-07-22 12:18:43,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 12:18:43,969 INFO L495 AbstractCegarLoop]: Abstraction has 2228 states and 2631 transitions. [2022-07-22 12:18:43,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 70.25) internal successors, (281), 3 states have internal predecessors, (281), 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 12:18:43,970 INFO L276 IsEmpty]: Start isEmpty. Operand 2228 states and 2631 transitions. [2022-07-22 12:18:43,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2022-07-22 12:18:43,978 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 12:18:43,979 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, 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, 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] [2022-07-22 12:18:43,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-22 12:18:43,979 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 12:18:43,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 12:18:43,980 INFO L85 PathProgramCache]: Analyzing trace with hash -993176621, now seen corresponding path program 1 times [2022-07-22 12:18:43,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 12:18:43,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507920181] [2022-07-22 12:18:43,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:18:43,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 12:18:44,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:18:44,240 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 10 proven. 261 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2022-07-22 12:18:44,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 12:18:44,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507920181] [2022-07-22 12:18:44,241 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507920181] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 12:18:44,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1001957962] [2022-07-22 12:18:44,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:18:44,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 12:18:44,241 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 12:18:44,244 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 12:18:44,279 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 12:18:44,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:18:44,361 INFO L263 TraceCheckSpWp]: Trace formula consists of 467 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-22 12:18:44,368 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 12:18:44,607 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked. [2022-07-22 12:18:44,607 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 12:18:44,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1001957962] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 12:18:44,608 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 12:18:44,608 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2022-07-22 12:18:44,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019641280] [2022-07-22 12:18:44,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 12:18:44,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 12:18:44,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 12:18:44,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 12:18:44,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-22 12:18:44,610 INFO L87 Difference]: Start difference. First operand 2228 states and 2631 transitions. Second operand has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 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 12:18:45,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 12:18:45,148 INFO L93 Difference]: Finished difference Result 5286 states and 6334 transitions. [2022-07-22 12:18:45,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 12:18:45,148 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 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 331 [2022-07-22 12:18:45,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 12:18:45,149 INFO L225 Difference]: With dead ends: 5286 [2022-07-22 12:18:45,149 INFO L226 Difference]: Without dead ends: 0 [2022-07-22 12:18:45,154 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 335 GetRequests, 330 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 12:18:45,155 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 110 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 367 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-22 12:18:45,156 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 38 Invalid, 443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 367 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-22 12:18:45,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-22 12:18:45,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-22 12:18:45,156 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 12:18:45,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-22 12:18:45,157 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 331 [2022-07-22 12:18:45,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 12:18:45,157 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-22 12:18:45,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 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 12:18:45,158 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-22 12:18:45,158 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-22 12:18:45,160 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-22 12:18:45,187 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-22 12:18:45,384 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,SelfDestructingSolverStorable9 [2022-07-22 12:18:45,386 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-22 12:18:45,849 INFO L899 garLoopResultBuilder]: For program point L597(line 597) no Hoare annotation was computed. [2022-07-22 12:18:45,849 INFO L899 garLoopResultBuilder]: For program point L564(lines 564 582) no Hoare annotation was computed. [2022-07-22 12:18:45,849 INFO L899 garLoopResultBuilder]: For program point L333(lines 333 582) no Hoare annotation was computed. [2022-07-22 12:18:45,849 INFO L899 garLoopResultBuilder]: For program point L367(lines 367 582) no Hoare annotation was computed. [2022-07-22 12:18:45,849 INFO L899 garLoopResultBuilder]: For program point L301(lines 301 582) no Hoare annotation was computed. [2022-07-22 12:18:45,849 INFO L899 garLoopResultBuilder]: For program point L235(lines 235 582) no Hoare annotation was computed. [2022-07-22 12:18:45,849 INFO L899 garLoopResultBuilder]: For program point L202-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:18:45,849 INFO L899 garLoopResultBuilder]: For program point L169-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:18:45,849 INFO L899 garLoopResultBuilder]: For program point L136-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:18:45,850 INFO L899 garLoopResultBuilder]: For program point L103-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:18:45,850 INFO L899 garLoopResultBuilder]: For program point L70-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:18:45,850 INFO L899 garLoopResultBuilder]: For program point L37-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:18:45,850 INFO L899 garLoopResultBuilder]: For program point L533(lines 533 582) no Hoare annotation was computed. [2022-07-22 12:18:45,850 INFO L899 garLoopResultBuilder]: For program point L203(line 203) no Hoare annotation was computed. [2022-07-22 12:18:45,850 INFO L899 garLoopResultBuilder]: For program point L170(line 170) no Hoare annotation was computed. [2022-07-22 12:18:45,850 INFO L899 garLoopResultBuilder]: For program point L137(line 137) no Hoare annotation was computed. [2022-07-22 12:18:45,850 INFO L899 garLoopResultBuilder]: For program point L104(line 104) no Hoare annotation was computed. [2022-07-22 12:18:45,850 INFO L899 garLoopResultBuilder]: For program point L71(line 71) no Hoare annotation was computed. [2022-07-22 12:18:45,850 INFO L899 garLoopResultBuilder]: For program point L38(line 38) no Hoare annotation was computed. [2022-07-22 12:18:45,850 INFO L899 garLoopResultBuilder]: For program point L567(lines 567 582) no Hoare annotation was computed. [2022-07-22 12:18:45,850 INFO L899 garLoopResultBuilder]: For program point L435(lines 435 582) no Hoare annotation was computed. [2022-07-22 12:18:45,850 INFO L899 garLoopResultBuilder]: For program point L336(lines 336 582) no Hoare annotation was computed. [2022-07-22 12:18:45,850 INFO L899 garLoopResultBuilder]: For program point L270(lines 270 582) no Hoare annotation was computed. [2022-07-22 12:18:45,851 INFO L899 garLoopResultBuilder]: For program point L403(lines 403 582) no Hoare annotation was computed. [2022-07-22 12:18:45,851 INFO L899 garLoopResultBuilder]: For program point L370(lines 370 582) no Hoare annotation was computed. [2022-07-22 12:18:45,851 INFO L899 garLoopResultBuilder]: For program point L205-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:18:45,851 INFO L899 garLoopResultBuilder]: For program point L172-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:18:45,851 INFO L899 garLoopResultBuilder]: For program point L139-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:18:45,851 INFO L899 garLoopResultBuilder]: For program point L106-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:18:45,851 INFO L899 garLoopResultBuilder]: For program point L73-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:18:45,851 INFO L899 garLoopResultBuilder]: For program point L40-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:18:45,851 INFO L899 garLoopResultBuilder]: For program point L536(lines 536 582) no Hoare annotation was computed. [2022-07-22 12:18:45,851 INFO L899 garLoopResultBuilder]: For program point L503(lines 503 582) no Hoare annotation was computed. [2022-07-22 12:18:45,851 INFO L899 garLoopResultBuilder]: For program point L470(lines 470 582) no Hoare annotation was computed. [2022-07-22 12:18:45,851 INFO L899 garLoopResultBuilder]: For program point L206(line 206) no Hoare annotation was computed. [2022-07-22 12:18:45,851 INFO L899 garLoopResultBuilder]: For program point L173(line 173) no Hoare annotation was computed. [2022-07-22 12:18:45,851 INFO L899 garLoopResultBuilder]: For program point L140(line 140) no Hoare annotation was computed. [2022-07-22 12:18:45,851 INFO L899 garLoopResultBuilder]: For program point L107(line 107) no Hoare annotation was computed. [2022-07-22 12:18:45,852 INFO L899 garLoopResultBuilder]: For program point L74(line 74) no Hoare annotation was computed. [2022-07-22 12:18:45,852 INFO L899 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2022-07-22 12:18:45,852 INFO L899 garLoopResultBuilder]: For program point L339(lines 339 582) no Hoare annotation was computed. [2022-07-22 12:18:45,852 INFO L899 garLoopResultBuilder]: For program point L306(lines 306 582) no Hoare annotation was computed. [2022-07-22 12:18:45,852 INFO L899 garLoopResultBuilder]: For program point L241(lines 241 582) no Hoare annotation was computed. [2022-07-22 12:18:45,852 INFO L899 garLoopResultBuilder]: For program point L208-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:18:45,852 INFO L899 garLoopResultBuilder]: For program point L175-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:18:45,852 INFO L899 garLoopResultBuilder]: For program point L142-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:18:45,855 INFO L899 garLoopResultBuilder]: For program point L109-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:18:45,855 INFO L899 garLoopResultBuilder]: For program point L76-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:18:45,855 INFO L899 garLoopResultBuilder]: For program point L43-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:18:45,855 INFO L899 garLoopResultBuilder]: For program point L539(lines 539 582) no Hoare annotation was computed. [2022-07-22 12:18:45,855 INFO L899 garLoopResultBuilder]: For program point L440(lines 440 582) no Hoare annotation was computed. [2022-07-22 12:18:45,856 INFO L899 garLoopResultBuilder]: For program point L275(lines 275 582) no Hoare annotation was computed. [2022-07-22 12:18:45,856 INFO L899 garLoopResultBuilder]: For program point L209(line 209) no Hoare annotation was computed. [2022-07-22 12:18:45,856 INFO L899 garLoopResultBuilder]: For program point L176(line 176) no Hoare annotation was computed. [2022-07-22 12:18:45,856 INFO L899 garLoopResultBuilder]: For program point L143(line 143) no Hoare annotation was computed. [2022-07-22 12:18:45,856 INFO L899 garLoopResultBuilder]: For program point L110(line 110) no Hoare annotation was computed. [2022-07-22 12:18:45,856 INFO L899 garLoopResultBuilder]: For program point L77(line 77) no Hoare annotation was computed. [2022-07-22 12:18:45,856 INFO L899 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2022-07-22 12:18:45,857 INFO L899 garLoopResultBuilder]: For program point L573(lines 573 582) no Hoare annotation was computed. [2022-07-22 12:18:45,857 INFO L899 garLoopResultBuilder]: For program point L408(lines 408 582) no Hoare annotation was computed. [2022-07-22 12:18:45,857 INFO L899 garLoopResultBuilder]: For program point L375(lines 375 582) no Hoare annotation was computed. [2022-07-22 12:18:45,857 INFO L899 garLoopResultBuilder]: For program point L475(lines 475 582) no Hoare annotation was computed. [2022-07-22 12:18:45,857 INFO L899 garLoopResultBuilder]: For program point L211-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:18:45,857 INFO L899 garLoopResultBuilder]: For program point L178-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:18:45,857 INFO L899 garLoopResultBuilder]: For program point L145-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:18:45,857 INFO L899 garLoopResultBuilder]: For program point L112-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:18:45,858 INFO L899 garLoopResultBuilder]: For program point L79-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:18:45,858 INFO L899 garLoopResultBuilder]: For program point L46-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:18:45,858 INFO L899 garLoopResultBuilder]: For program point L509(lines 509 582) no Hoare annotation was computed. [2022-07-22 12:18:45,858 INFO L899 garLoopResultBuilder]: For program point L311(lines 311 582) no Hoare annotation was computed. [2022-07-22 12:18:45,858 INFO L899 garLoopResultBuilder]: For program point L212(line 212) no Hoare annotation was computed. [2022-07-22 12:18:45,858 INFO L899 garLoopResultBuilder]: For program point L179(line 179) no Hoare annotation was computed. [2022-07-22 12:18:45,858 INFO L899 garLoopResultBuilder]: For program point L146(line 146) no Hoare annotation was computed. [2022-07-22 12:18:45,859 INFO L899 garLoopResultBuilder]: For program point L113(line 113) no Hoare annotation was computed. [2022-07-22 12:18:45,859 INFO L899 garLoopResultBuilder]: For program point L80(line 80) no Hoare annotation was computed. [2022-07-22 12:18:45,859 INFO L899 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2022-07-22 12:18:45,859 INFO L899 garLoopResultBuilder]: For program point L345(lines 345 582) no Hoare annotation was computed. [2022-07-22 12:18:45,859 INFO L899 garLoopResultBuilder]: For program point L246(lines 246 582) no Hoare annotation was computed. [2022-07-22 12:18:45,859 INFO L899 garLoopResultBuilder]: For program point L544(lines 544 582) no Hoare annotation was computed. [2022-07-22 12:18:45,859 INFO L899 garLoopResultBuilder]: For program point L181-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:18:45,860 INFO L899 garLoopResultBuilder]: For program point L148-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:18:45,860 INFO L899 garLoopResultBuilder]: For program point L115-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:18:45,860 INFO L899 garLoopResultBuilder]: For program point L82-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:18:45,860 INFO L899 garLoopResultBuilder]: For program point L49-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:18:45,860 INFO L899 garLoopResultBuilder]: For program point L446(lines 446 582) no Hoare annotation was computed. [2022-07-22 12:18:45,860 INFO L899 garLoopResultBuilder]: For program point L413(lines 413 582) no Hoare annotation was computed. [2022-07-22 12:18:45,860 INFO L899 garLoopResultBuilder]: For program point L380(lines 380 582) no Hoare annotation was computed. [2022-07-22 12:18:45,861 INFO L899 garLoopResultBuilder]: For program point L281(lines 281 582) no Hoare annotation was computed. [2022-07-22 12:18:45,861 INFO L899 garLoopResultBuilder]: For program point L182(line 182) no Hoare annotation was computed. [2022-07-22 12:18:45,861 INFO L899 garLoopResultBuilder]: For program point L149(line 149) no Hoare annotation was computed. [2022-07-22 12:18:45,861 INFO L899 garLoopResultBuilder]: For program point L116(line 116) no Hoare annotation was computed. [2022-07-22 12:18:45,861 INFO L899 garLoopResultBuilder]: For program point L83(line 83) no Hoare annotation was computed. [2022-07-22 12:18:45,861 INFO L899 garLoopResultBuilder]: For program point L50(line 50) no Hoare annotation was computed. [2022-07-22 12:18:45,861 INFO L899 garLoopResultBuilder]: For program point L579(lines 579 582) no Hoare annotation was computed. [2022-07-22 12:18:45,861 INFO L899 garLoopResultBuilder]: For program point L249(lines 249 582) no Hoare annotation was computed. [2022-07-22 12:18:45,862 INFO L899 garLoopResultBuilder]: For program point L514(lines 514 582) no Hoare annotation was computed. [2022-07-22 12:18:45,862 INFO L899 garLoopResultBuilder]: For program point L481(lines 481 582) no Hoare annotation was computed. [2022-07-22 12:18:45,862 INFO L899 garLoopResultBuilder]: For program point L316(lines 316 582) no Hoare annotation was computed. [2022-07-22 12:18:45,862 INFO L899 garLoopResultBuilder]: For program point L184-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:18:45,862 INFO L899 garLoopResultBuilder]: For program point L151-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:18:45,862 INFO L899 garLoopResultBuilder]: For program point L118-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:18:45,862 INFO L899 garLoopResultBuilder]: For program point L85-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:18:45,863 INFO L899 garLoopResultBuilder]: For program point L52-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:18:45,863 INFO L899 garLoopResultBuilder]: For program point L350(lines 350 582) no Hoare annotation was computed. [2022-07-22 12:18:45,863 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-22 12:18:45,863 INFO L899 garLoopResultBuilder]: For program point L185(line 185) no Hoare annotation was computed. [2022-07-22 12:18:45,863 INFO L899 garLoopResultBuilder]: For program point L152(line 152) no Hoare annotation was computed. [2022-07-22 12:18:45,863 INFO L899 garLoopResultBuilder]: For program point L119(line 119) no Hoare annotation was computed. [2022-07-22 12:18:45,863 INFO L899 garLoopResultBuilder]: For program point L86(line 86) no Hoare annotation was computed. [2022-07-22 12:18:45,863 INFO L899 garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed. [2022-07-22 12:18:45,864 INFO L895 garLoopResultBuilder]: At program point L583(lines 30 584) the Hoare annotation is: (let ((.cse2 (< (div (+ 206 (* (- 1) ~a1~0)) (- 89)) 1)) (.cse0 (= 14 ~a4~0)) (.cse3 (not (= 7 ~a19~0))) (.cse1 (= ~a12~0 0))) (or (and .cse0 (= ~a10~0 2) .cse1 .cse2) (and (not (= ~a10~0 4)) .cse0 .cse3 .cse1 .cse2 (not (= ~a10~0 3))) (and (= ~a10~0 1) .cse0 .cse1) (and (<= ~a19~0 9) .cse0 .cse3 .cse1))) [2022-07-22 12:18:45,864 INFO L899 garLoopResultBuilder]: For program point L550(lines 550 582) no Hoare annotation was computed. [2022-07-22 12:18:45,865 INFO L899 garLoopResultBuilder]: For program point L418(lines 418 582) no Hoare annotation was computed. [2022-07-22 12:18:45,865 INFO L899 garLoopResultBuilder]: For program point L385(lines 385 582) no Hoare annotation was computed. [2022-07-22 12:18:45,865 INFO L899 garLoopResultBuilder]: For program point L220(lines 220 582) no Hoare annotation was computed. [2022-07-22 12:18:45,866 INFO L899 garLoopResultBuilder]: For program point L187-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:18:45,866 INFO L899 garLoopResultBuilder]: For program point L154-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:18:45,866 INFO L899 garLoopResultBuilder]: For program point L121-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:18:45,866 INFO L899 garLoopResultBuilder]: For program point L88-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:18:45,866 INFO L899 garLoopResultBuilder]: For program point L55-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:18:45,866 INFO L899 garLoopResultBuilder]: For program point L452(lines 452 582) no Hoare annotation was computed. [2022-07-22 12:18:45,867 INFO L899 garLoopResultBuilder]: For program point L287(lines 287 582) no Hoare annotation was computed. [2022-07-22 12:18:45,867 INFO L899 garLoopResultBuilder]: For program point L254(lines 254 582) no Hoare annotation was computed. [2022-07-22 12:18:45,867 INFO L899 garLoopResultBuilder]: For program point L188(line 188) no Hoare annotation was computed. [2022-07-22 12:18:45,867 INFO L899 garLoopResultBuilder]: For program point L155(line 155) no Hoare annotation was computed. [2022-07-22 12:18:45,867 INFO L899 garLoopResultBuilder]: For program point L122(line 122) no Hoare annotation was computed. [2022-07-22 12:18:45,867 INFO L899 garLoopResultBuilder]: For program point L89(line 89) no Hoare annotation was computed. [2022-07-22 12:18:45,867 INFO L899 garLoopResultBuilder]: For program point L56(line 56) no Hoare annotation was computed. [2022-07-22 12:18:45,868 INFO L899 garLoopResultBuilder]: For program point L519(lines 519 582) no Hoare annotation was computed. [2022-07-22 12:18:45,868 INFO L899 garLoopResultBuilder]: For program point L486(lines 486 582) no Hoare annotation was computed. [2022-07-22 12:18:45,868 INFO L902 garLoopResultBuilder]: At program point L586(lines 586 602) the Hoare annotation is: true [2022-07-22 12:18:45,868 INFO L899 garLoopResultBuilder]: For program point L388(lines 388 582) no Hoare annotation was computed. [2022-07-22 12:18:45,868 INFO L899 garLoopResultBuilder]: For program point L355(lines 355 582) no Hoare annotation was computed. [2022-07-22 12:18:45,868 INFO L899 garLoopResultBuilder]: For program point L322(lines 322 582) no Hoare annotation was computed. [2022-07-22 12:18:45,868 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-22 12:18:45,869 INFO L899 garLoopResultBuilder]: For program point L190-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:18:45,869 INFO L899 garLoopResultBuilder]: For program point L157-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:18:45,869 INFO L899 garLoopResultBuilder]: For program point L124-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:18:45,869 INFO L899 garLoopResultBuilder]: For program point L91-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:18:45,869 INFO L899 garLoopResultBuilder]: For program point L58-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:18:45,869 INFO L899 garLoopResultBuilder]: For program point L191(line 191) no Hoare annotation was computed. [2022-07-22 12:18:45,869 INFO L899 garLoopResultBuilder]: For program point L158(line 158) no Hoare annotation was computed. [2022-07-22 12:18:45,869 INFO L899 garLoopResultBuilder]: For program point L125(line 125) no Hoare annotation was computed. [2022-07-22 12:18:45,870 INFO L899 garLoopResultBuilder]: For program point L92(line 92) no Hoare annotation was computed. [2022-07-22 12:18:45,870 INFO L899 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2022-07-22 12:18:45,870 INFO L899 garLoopResultBuilder]: For program point L555(lines 555 582) no Hoare annotation was computed. [2022-07-22 12:18:45,870 INFO L899 garLoopResultBuilder]: For program point L225(lines 225 582) no Hoare annotation was computed. [2022-07-22 12:18:45,870 INFO L899 garLoopResultBuilder]: For program point L424(lines 424 582) no Hoare annotation was computed. [2022-07-22 12:18:45,870 INFO L899 garLoopResultBuilder]: For program point L259(lines 259 582) no Hoare annotation was computed. [2022-07-22 12:18:45,870 INFO L899 garLoopResultBuilder]: For program point L193-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:18:45,871 INFO L899 garLoopResultBuilder]: For program point L160-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:18:45,871 INFO L899 garLoopResultBuilder]: For program point L127-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:18:45,871 INFO L899 garLoopResultBuilder]: For program point L94-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:18:45,871 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-22 12:18:45,872 INFO L899 garLoopResultBuilder]: For program point L61-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:18:45,872 INFO L899 garLoopResultBuilder]: For program point L524(lines 524 582) no Hoare annotation was computed. [2022-07-22 12:18:45,872 INFO L899 garLoopResultBuilder]: For program point L491(lines 491 582) no Hoare annotation was computed. [2022-07-22 12:18:45,872 INFO L899 garLoopResultBuilder]: For program point L458(lines 458 582) no Hoare annotation was computed. [2022-07-22 12:18:45,872 INFO L899 garLoopResultBuilder]: For program point L293(lines 293 582) no Hoare annotation was computed. [2022-07-22 12:18:45,872 INFO L899 garLoopResultBuilder]: For program point L194(line 194) no Hoare annotation was computed. [2022-07-22 12:18:45,872 INFO L899 garLoopResultBuilder]: For program point L161(line 161) no Hoare annotation was computed. [2022-07-22 12:18:45,874 INFO L899 garLoopResultBuilder]: For program point L128(line 128) no Hoare annotation was computed. [2022-07-22 12:18:45,874 INFO L899 garLoopResultBuilder]: For program point L95(line 95) no Hoare annotation was computed. [2022-07-22 12:18:45,874 INFO L899 garLoopResultBuilder]: For program point L62(line 62) no Hoare annotation was computed. [2022-07-22 12:18:45,874 INFO L899 garLoopResultBuilder]: For program point L558(lines 558 582) no Hoare annotation was computed. [2022-07-22 12:18:45,875 INFO L899 garLoopResultBuilder]: For program point L393(lines 393 582) no Hoare annotation was computed. [2022-07-22 12:18:45,875 INFO L899 garLoopResultBuilder]: For program point L327(lines 327 582) no Hoare annotation was computed. [2022-07-22 12:18:45,875 INFO L895 garLoopResultBuilder]: At program point L592-2(lines 592 601) the Hoare annotation is: (let ((.cse2 (< (div (+ 206 (* (- 1) ~a1~0)) (- 89)) 1)) (.cse0 (= 14 ~a4~0)) (.cse3 (not (= 7 ~a19~0))) (.cse1 (= ~a12~0 0))) (or (and .cse0 (= ~a10~0 2) .cse1 .cse2) (and (not (= ~a10~0 4)) .cse0 .cse3 .cse1 .cse2 (not (= ~a10~0 3))) (and (= ~a10~0 1) .cse0 .cse1) (and (<= ~a19~0 9) .cse0 .cse3 .cse1))) [2022-07-22 12:18:45,875 INFO L899 garLoopResultBuilder]: For program point L361(lines 361 582) no Hoare annotation was computed. [2022-07-22 12:18:45,875 INFO L899 garLoopResultBuilder]: For program point L196-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:18:45,875 INFO L899 garLoopResultBuilder]: For program point L163-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:18:45,875 INFO L899 garLoopResultBuilder]: For program point L130-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:18:45,876 INFO L899 garLoopResultBuilder]: For program point L97-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:18:45,876 INFO L899 garLoopResultBuilder]: For program point L31(lines 31 33) no Hoare annotation was computed. [2022-07-22 12:18:45,876 INFO L899 garLoopResultBuilder]: For program point L64-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:18:45,876 INFO L899 garLoopResultBuilder]: For program point L31-2(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:18:45,876 INFO L899 garLoopResultBuilder]: For program point L527(lines 527 582) no Hoare annotation was computed. [2022-07-22 12:18:45,876 INFO L899 garLoopResultBuilder]: For program point L296(lines 296 582) no Hoare annotation was computed. [2022-07-22 12:18:45,876 INFO L899 garLoopResultBuilder]: For program point L230(lines 230 582) no Hoare annotation was computed. [2022-07-22 12:18:45,877 INFO L899 garLoopResultBuilder]: For program point L197(line 197) no Hoare annotation was computed. [2022-07-22 12:18:45,877 INFO L899 garLoopResultBuilder]: For program point L164(line 164) no Hoare annotation was computed. [2022-07-22 12:18:45,877 INFO L899 garLoopResultBuilder]: For program point L131(line 131) no Hoare annotation was computed. [2022-07-22 12:18:45,877 INFO L899 garLoopResultBuilder]: For program point L98(line 98) no Hoare annotation was computed. [2022-07-22 12:18:45,877 INFO L899 garLoopResultBuilder]: For program point L65(line 65) no Hoare annotation was computed. [2022-07-22 12:18:45,877 INFO L899 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2022-07-22 12:18:45,877 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-22 12:18:45,878 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 116) no Hoare annotation was computed. [2022-07-22 12:18:45,878 INFO L899 garLoopResultBuilder]: For program point L429(lines 429 582) no Hoare annotation was computed. [2022-07-22 12:18:45,878 INFO L899 garLoopResultBuilder]: For program point L330(lines 330 582) no Hoare annotation was computed. [2022-07-22 12:18:45,878 INFO L899 garLoopResultBuilder]: For program point L264(lines 264 582) no Hoare annotation was computed. [2022-07-22 12:18:45,878 INFO L899 garLoopResultBuilder]: For program point L364(lines 364 582) no Hoare annotation was computed. [2022-07-22 12:18:45,878 INFO L899 garLoopResultBuilder]: For program point L199-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:18:45,879 INFO L899 garLoopResultBuilder]: For program point L166-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:18:45,879 INFO L899 garLoopResultBuilder]: For program point L133-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:18:45,879 INFO L899 garLoopResultBuilder]: For program point L100-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:18:45,879 INFO L899 garLoopResultBuilder]: For program point L67-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:18:45,880 INFO L899 garLoopResultBuilder]: For program point L34-1(lines 30 584) no Hoare annotation was computed. [2022-07-22 12:18:45,880 INFO L899 garLoopResultBuilder]: For program point L497(lines 497 582) no Hoare annotation was computed. [2022-07-22 12:18:45,880 INFO L899 garLoopResultBuilder]: For program point L464(lines 464 582) no Hoare annotation was computed. [2022-07-22 12:18:45,880 INFO L899 garLoopResultBuilder]: For program point L398(lines 398 582) no Hoare annotation was computed. [2022-07-22 12:18:45,880 INFO L899 garLoopResultBuilder]: For program point L200(line 200) no Hoare annotation was computed. [2022-07-22 12:18:45,880 INFO L899 garLoopResultBuilder]: For program point L167(line 167) no Hoare annotation was computed. [2022-07-22 12:18:45,880 INFO L899 garLoopResultBuilder]: For program point L134(line 134) no Hoare annotation was computed. [2022-07-22 12:18:45,880 INFO L899 garLoopResultBuilder]: For program point L101(line 101) no Hoare annotation was computed. [2022-07-22 12:18:45,880 INFO L899 garLoopResultBuilder]: For program point L68(line 68) no Hoare annotation was computed. [2022-07-22 12:18:45,880 INFO L899 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2022-07-22 12:18:45,882 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 12:18:45,884 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-22 12:18:45,918 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.07 12:18:45 BoogieIcfgContainer [2022-07-22 12:18:45,918 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-22 12:18:45,918 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-22 12:18:45,919 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-22 12:18:45,919 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-22 12:18:45,919 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 12:18:34" (3/4) ... [2022-07-22 12:18:45,927 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-22 12:18:45,941 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-07-22 12:18:45,941 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-07-22 12:18:45,942 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-22 12:18:45,943 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-22 12:18:46,011 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-22 12:18:46,011 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-22 12:18:46,012 INFO L158 Benchmark]: Toolchain (without parser) took 13041.67ms. Allocated memory was 88.1MB in the beginning and 224.4MB in the end (delta: 136.3MB). Free memory was 53.8MB in the beginning and 184.9MB in the end (delta: -131.1MB). Peak memory consumption was 129.4MB. Max. memory is 16.1GB. [2022-07-22 12:18:46,012 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 88.1MB. Free memory was 43.3MB in the beginning and 43.2MB in the end (delta: 69.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 12:18:46,012 INFO L158 Benchmark]: CACSL2BoogieTranslator took 479.47ms. Allocated memory was 88.1MB in the beginning and 113.2MB in the end (delta: 25.2MB). Free memory was 53.6MB in the beginning and 73.3MB in the end (delta: -19.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-22 12:18:46,013 INFO L158 Benchmark]: Boogie Procedure Inliner took 102.04ms. Allocated memory is still 113.2MB. Free memory was 73.3MB in the beginning and 64.9MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-22 12:18:46,013 INFO L158 Benchmark]: Boogie Preprocessor took 93.19ms. Allocated memory is still 113.2MB. Free memory was 64.9MB in the beginning and 60.1MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-22 12:18:46,013 INFO L158 Benchmark]: RCFGBuilder took 1174.06ms. Allocated memory is still 113.2MB. Free memory was 60.1MB in the beginning and 81.9MB in the end (delta: -21.7MB). Peak memory consumption was 38.7MB. Max. memory is 16.1GB. [2022-07-22 12:18:46,014 INFO L158 Benchmark]: TraceAbstraction took 11093.73ms. Allocated memory was 113.2MB in the beginning and 224.4MB in the end (delta: 111.1MB). Free memory was 81.9MB in the beginning and 62.0MB in the end (delta: 19.9MB). Peak memory consumption was 131.0MB. Max. memory is 16.1GB. [2022-07-22 12:18:46,014 INFO L158 Benchmark]: Witness Printer took 93.07ms. Allocated memory is still 224.4MB. Free memory was 62.0MB in the beginning and 184.9MB in the end (delta: -122.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 12:18:46,015 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 88.1MB. Free memory was 43.3MB in the beginning and 43.2MB in the end (delta: 69.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 479.47ms. Allocated memory was 88.1MB in the beginning and 113.2MB in the end (delta: 25.2MB). Free memory was 53.6MB in the beginning and 73.3MB in the end (delta: -19.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 102.04ms. Allocated memory is still 113.2MB. Free memory was 73.3MB in the beginning and 64.9MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 93.19ms. Allocated memory is still 113.2MB. Free memory was 64.9MB in the beginning and 60.1MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1174.06ms. Allocated memory is still 113.2MB. Free memory was 60.1MB in the beginning and 81.9MB in the end (delta: -21.7MB). Peak memory consumption was 38.7MB. Max. memory is 16.1GB. * TraceAbstraction took 11093.73ms. Allocated memory was 113.2MB in the beginning and 224.4MB in the end (delta: 111.1MB). Free memory was 81.9MB in the beginning and 62.0MB in the end (delta: 19.9MB). Peak memory consumption was 131.0MB. Max. memory is 16.1GB. * Witness Printer took 93.07ms. Allocated memory is still 224.4MB. Free memory was 62.0MB in the beginning and 184.9MB in the end (delta: -122.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 116]: 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, 206 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 11.0s, OverallIterations: 10, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 6.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1381 SdHoareTripleChecker+Valid, 5.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1381 mSDsluCounter, 712 SdHoareTripleChecker+Invalid, 4.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 65 mSDsCounter, 921 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4575 IncrementalHoareTripleChecker+Invalid, 5496 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 921 mSolverCounterUnsat, 647 mSDtfsCounter, 4575 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 632 GetRequests, 606 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2228occurred in iteration=9, InterpolantAutomatonStates: 38, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 10 MinimizatonAttempts, 422 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 54 NumberOfFragments, 145 HoareAnnotationTreeSize, 3 FomulaSimplifications, 1195 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 3 FomulaSimplificationsInter, 1341 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 2802 NumberOfCodeBlocks, 2802 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 2790 ConstructedInterpolants, 0 QuantifiedInterpolants, 15215 SizeOfPredicates, 1 NumberOfNonLiveVariables, 843 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 12 InterpolantComputations, 10 PerfectInterpolantSequences, 1901/2257 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: 592]: Loop Invariant Derived loop invariant: (((((14 == a4 && a10 == 2) && a12 == 0) && (206 + -1 * a1) / -89 < 1) || (((((!(a10 == 4) && 14 == a4) && !(7 == a19)) && a12 == 0) && (206 + -1 * a1) / -89 < 1) && !(a10 == 3))) || ((a10 == 1 && 14 == a4) && a12 == 0)) || (((a19 <= 9 && 14 == a4) && !(7 == a19)) && a12 == 0) - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: (((((14 == a4 && a10 == 2) && a12 == 0) && (206 + -1 * a1) / -89 < 1) || (((((!(a10 == 4) && 14 == a4) && !(7 == a19)) && a12 == 0) && (206 + -1 * a1) / -89 < 1) && !(a10 == 3))) || ((a10 == 1 && 14 == a4) && a12 == 0)) || (((a19 <= 9 && 14 == a4) && !(7 == a19)) && a12 == 0) - InvariantResult [Line: 586]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-07-22 12:18:46,033 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