./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem02_label47.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 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/Problem02_label47.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 43942ed658f972c411b91910fdf7d6dc5f5d52e9f642b849efd1f112fd822a54 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-17 03:29:03,412 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-17 03:29:03,413 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-17 03:29:03,474 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-17 03:29:03,475 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-17 03:29:03,478 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-17 03:29:03,479 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-17 03:29:03,480 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-17 03:29:03,481 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-17 03:29:03,486 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-17 03:29:03,486 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-17 03:29:03,488 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-17 03:29:03,488 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-17 03:29:03,489 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-17 03:29:03,491 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-17 03:29:03,493 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-17 03:29:03,494 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-17 03:29:03,495 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-17 03:29:03,496 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-17 03:29:03,502 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-17 03:29:03,504 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-17 03:29:03,505 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-17 03:29:03,506 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-17 03:29:03,507 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-17 03:29:03,508 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-17 03:29:03,509 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-17 03:29:03,509 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-17 03:29:03,509 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-17 03:29:03,510 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-17 03:29:03,510 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-17 03:29:03,510 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-17 03:29:03,511 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-17 03:29:03,511 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-17 03:29:03,512 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-17 03:29:03,513 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-17 03:29:03,513 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-17 03:29:03,513 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-17 03:29:03,513 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-17 03:29:03,514 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-17 03:29:03,514 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-17 03:29:03,515 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-17 03:29:03,518 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-17 03:29:03,543 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-17 03:29:03,545 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-17 03:29:03,545 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-17 03:29:03,545 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-17 03:29:03,546 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-17 03:29:03,546 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-17 03:29:03,547 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-17 03:29:03,547 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-17 03:29:03,547 INFO L138 SettingsManager]: * Use SBE=true [2021-12-17 03:29:03,547 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-17 03:29:03,548 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-17 03:29:03,548 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-17 03:29:03,548 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-17 03:29:03,548 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-17 03:29:03,548 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-17 03:29:03,549 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-17 03:29:03,549 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-17 03:29:03,549 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-17 03:29:03,549 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-17 03:29:03,549 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-17 03:29:03,549 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-17 03:29:03,549 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-17 03:29:03,550 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-17 03:29:03,550 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-17 03:29:03,550 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 03:29:03,550 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-17 03:29:03,550 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-17 03:29:03,550 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-17 03:29:03,551 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-17 03:29:03,551 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-17 03:29:03,551 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-17 03:29:03,551 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-17 03:29:03,551 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-17 03:29:03,551 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-17 03:29:03,552 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 43942ed658f972c411b91910fdf7d6dc5f5d52e9f642b849efd1f112fd822a54 [2021-12-17 03:29:03,730 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-17 03:29:03,750 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-17 03:29:03,752 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-17 03:29:03,752 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-17 03:29:03,753 INFO L275 PluginConnector]: CDTParser initialized [2021-12-17 03:29:03,754 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem02_label47.c [2021-12-17 03:29:03,794 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8daa85136/a07aafa7e75b4d88a7bf13e54c41ad6f/FLAG81b9bcc70 [2021-12-17 03:29:04,236 INFO L306 CDTParser]: Found 1 translation units. [2021-12-17 03:29:04,237 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem02_label47.c [2021-12-17 03:29:04,246 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8daa85136/a07aafa7e75b4d88a7bf13e54c41ad6f/FLAG81b9bcc70 [2021-12-17 03:29:04,258 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8daa85136/a07aafa7e75b4d88a7bf13e54c41ad6f [2021-12-17 03:29:04,260 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-17 03:29:04,262 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-17 03:29:04,263 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-17 03:29:04,263 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-17 03:29:04,265 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-17 03:29:04,266 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 03:29:04" (1/1) ... [2021-12-17 03:29:04,267 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42252d9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:29:04, skipping insertion in model container [2021-12-17 03:29:04,267 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 03:29:04" (1/1) ... [2021-12-17 03:29:04,272 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-17 03:29:04,307 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-17 03:29:04,535 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/Problem02_label47.c[17583,17596] [2021-12-17 03:29:04,558 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 03:29:04,564 INFO L203 MainTranslator]: Completed pre-run [2021-12-17 03:29:04,632 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/Problem02_label47.c[17583,17596] [2021-12-17 03:29:04,646 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 03:29:04,662 INFO L208 MainTranslator]: Completed translation [2021-12-17 03:29:04,662 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:29:04 WrapperNode [2021-12-17 03:29:04,662 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-17 03:29:04,663 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-17 03:29:04,663 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-17 03:29:04,663 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-17 03:29:04,668 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:29:04" (1/1) ... [2021-12-17 03:29:04,691 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:29:04" (1/1) ... [2021-12-17 03:29:04,732 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 668 [2021-12-17 03:29:04,733 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-17 03:29:04,733 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-17 03:29:04,734 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-17 03:29:04,734 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-17 03:29:04,739 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:29:04" (1/1) ... [2021-12-17 03:29:04,740 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:29:04" (1/1) ... [2021-12-17 03:29:04,753 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:29:04" (1/1) ... [2021-12-17 03:29:04,753 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:29:04" (1/1) ... [2021-12-17 03:29:04,768 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:29:04" (1/1) ... [2021-12-17 03:29:04,777 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:29:04" (1/1) ... [2021-12-17 03:29:04,784 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:29:04" (1/1) ... [2021-12-17 03:29:04,788 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-17 03:29:04,789 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-17 03:29:04,789 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-17 03:29:04,789 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-17 03:29:04,795 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:29:04" (1/1) ... [2021-12-17 03:29:04,799 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 03:29:04,808 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 03:29:04,819 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) [2021-12-17 03:29:04,825 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 [2021-12-17 03:29:04,846 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-17 03:29:04,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-17 03:29:04,846 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-17 03:29:04,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-17 03:29:04,888 INFO L236 CfgBuilder]: Building ICFG [2021-12-17 03:29:04,890 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-17 03:29:05,581 INFO L277 CfgBuilder]: Performing block encoding [2021-12-17 03:29:05,589 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-17 03:29:05,589 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-17 03:29:05,591 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 03:29:05 BoogieIcfgContainer [2021-12-17 03:29:05,591 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-17 03:29:05,593 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-17 03:29:05,593 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-17 03:29:05,596 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-17 03:29:05,596 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 03:29:04" (1/3) ... [2021-12-17 03:29:05,596 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64a17cf0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 03:29:05, skipping insertion in model container [2021-12-17 03:29:05,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:29:04" (2/3) ... [2021-12-17 03:29:05,597 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64a17cf0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 03:29:05, skipping insertion in model container [2021-12-17 03:29:05,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 03:29:05" (3/3) ... [2021-12-17 03:29:05,598 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem02_label47.c [2021-12-17 03:29:05,603 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-17 03:29:05,604 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-17 03:29:05,636 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-17 03:29:05,640 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-17 03:29:05,641 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-17 03:29:05,656 INFO L276 IsEmpty]: Start isEmpty. Operand has 227 states, 225 states have (on average 1.6666666666666667) internal successors, (375), 226 states have internal predecessors, (375), 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) [2021-12-17 03:29:05,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-12-17 03:29:05,677 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 03:29:05,678 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 03:29:05,678 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 03:29:05,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 03:29:05,682 INFO L85 PathProgramCache]: Analyzing trace with hash 978014419, now seen corresponding path program 1 times [2021-12-17 03:29:05,687 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 03:29:05,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867725333] [2021-12-17 03:29:05,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:29:05,689 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 03:29:05,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:29:05,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 03:29:05,986 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 03:29:05,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867725333] [2021-12-17 03:29:05,988 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867725333] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 03:29:05,988 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 03:29:05,988 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-17 03:29:05,990 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423100656] [2021-12-17 03:29:05,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 03:29:05,995 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 03:29:05,995 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 03:29:06,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 03:29:06,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 03:29:06,020 INFO L87 Difference]: Start difference. First operand has 227 states, 225 states have (on average 1.6666666666666667) internal successors, (375), 226 states have internal predecessors, (375), 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 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 2 states have internal predecessors, (107), 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) [2021-12-17 03:29:06,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 03:29:06,575 INFO L93 Difference]: Finished difference Result 630 states and 1070 transitions. [2021-12-17 03:29:06,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 03:29:06,577 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 2 states have internal predecessors, (107), 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 107 [2021-12-17 03:29:06,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 03:29:06,590 INFO L225 Difference]: With dead ends: 630 [2021-12-17 03:29:06,590 INFO L226 Difference]: Without dead ends: 318 [2021-12-17 03:29:06,592 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 03:29:06,594 INFO L933 BasicCegarLoop]: 96 mSDtfsCounter, 123 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-17 03:29:06,595 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 119 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-17 03:29:06,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2021-12-17 03:29:06,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 318. [2021-12-17 03:29:06,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 317 states have (on average 1.473186119873817) internal successors, (467), 317 states have internal predecessors, (467), 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) [2021-12-17 03:29:06,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 467 transitions. [2021-12-17 03:29:06,631 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 467 transitions. Word has length 107 [2021-12-17 03:29:06,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 03:29:06,633 INFO L470 AbstractCegarLoop]: Abstraction has 318 states and 467 transitions. [2021-12-17 03:29:06,633 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 2 states have internal predecessors, (107), 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) [2021-12-17 03:29:06,633 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 467 transitions. [2021-12-17 03:29:06,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-12-17 03:29:06,636 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 03:29:06,636 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 03:29:06,636 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-17 03:29:06,637 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 03:29:06,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 03:29:06,637 INFO L85 PathProgramCache]: Analyzing trace with hash 1155726472, now seen corresponding path program 1 times [2021-12-17 03:29:06,637 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 03:29:06,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814032358] [2021-12-17 03:29:06,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:29:06,638 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 03:29:06,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:29:06,767 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 03:29:06,767 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 03:29:06,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814032358] [2021-12-17 03:29:06,768 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814032358] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 03:29:06,768 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 03:29:06,768 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 03:29:06,768 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508686624] [2021-12-17 03:29:06,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 03:29:06,769 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 03:29:06,770 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 03:29:06,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 03:29:06,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-17 03:29:06,770 INFO L87 Difference]: Start difference. First operand 318 states and 467 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 3 states have internal predecessors, (111), 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) [2021-12-17 03:29:07,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 03:29:07,296 INFO L93 Difference]: Finished difference Result 999 states and 1508 transitions. [2021-12-17 03:29:07,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 03:29:07,297 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 3 states have internal predecessors, (111), 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 111 [2021-12-17 03:29:07,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 03:29:07,302 INFO L225 Difference]: With dead ends: 999 [2021-12-17 03:29:07,302 INFO L226 Difference]: Without dead ends: 600 [2021-12-17 03:29:07,304 INFO L932 BasicCegarLoop]: 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 [2021-12-17 03:29:07,307 INFO L933 BasicCegarLoop]: 80 mSDtfsCounter, 173 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 665 mSolverCounterSat, 135 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 800 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 135 IncrementalHoareTripleChecker+Valid, 665 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-17 03:29:07,309 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [173 Valid, 113 Invalid, 800 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [135 Valid, 665 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-17 03:29:07,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2021-12-17 03:29:07,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 600. [2021-12-17 03:29:07,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 600 states, 599 states have (on average 1.358931552587646) internal successors, (814), 599 states have internal predecessors, (814), 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) [2021-12-17 03:29:07,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 814 transitions. [2021-12-17 03:29:07,332 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 814 transitions. Word has length 111 [2021-12-17 03:29:07,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 03:29:07,333 INFO L470 AbstractCegarLoop]: Abstraction has 600 states and 814 transitions. [2021-12-17 03:29:07,333 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 3 states have internal predecessors, (111), 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) [2021-12-17 03:29:07,333 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 814 transitions. [2021-12-17 03:29:07,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-12-17 03:29:07,338 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 03:29:07,342 INFO L514 BasicCegarLoop]: trace histogram [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, 1] [2021-12-17 03:29:07,342 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-17 03:29:07,342 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 03:29:07,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 03:29:07,343 INFO L85 PathProgramCache]: Analyzing trace with hash 1741850674, now seen corresponding path program 1 times [2021-12-17 03:29:07,343 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 03:29:07,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345814564] [2021-12-17 03:29:07,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:29:07,343 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 03:29:07,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:29:07,403 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 03:29:07,403 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 03:29:07,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345814564] [2021-12-17 03:29:07,403 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345814564] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 03:29:07,404 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 03:29:07,405 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-17 03:29:07,405 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498265958] [2021-12-17 03:29:07,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 03:29:07,406 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 03:29:07,406 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 03:29:07,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 03:29:07,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 03:29:07,408 INFO L87 Difference]: Start difference. First operand 600 states and 814 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 2 states have internal predecessors, (125), 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) [2021-12-17 03:29:07,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 03:29:07,731 INFO L93 Difference]: Finished difference Result 1779 states and 2420 transitions. [2021-12-17 03:29:07,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 03:29:07,732 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 2 states have internal predecessors, (125), 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 125 [2021-12-17 03:29:07,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 03:29:07,735 INFO L225 Difference]: With dead ends: 1779 [2021-12-17 03:29:07,735 INFO L226 Difference]: Without dead ends: 1181 [2021-12-17 03:29:07,736 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 03:29:07,742 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 156 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-17 03:29:07,743 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 100 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 369 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-17 03:29:07,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1181 states. [2021-12-17 03:29:07,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1181 to 1173. [2021-12-17 03:29:07,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1173 states, 1172 states have (on average 1.3114334470989761) internal successors, (1537), 1172 states have internal predecessors, (1537), 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) [2021-12-17 03:29:07,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1173 states to 1173 states and 1537 transitions. [2021-12-17 03:29:07,775 INFO L78 Accepts]: Start accepts. Automaton has 1173 states and 1537 transitions. Word has length 125 [2021-12-17 03:29:07,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 03:29:07,775 INFO L470 AbstractCegarLoop]: Abstraction has 1173 states and 1537 transitions. [2021-12-17 03:29:07,776 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 2 states have internal predecessors, (125), 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) [2021-12-17 03:29:07,776 INFO L276 IsEmpty]: Start isEmpty. Operand 1173 states and 1537 transitions. [2021-12-17 03:29:07,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2021-12-17 03:29:07,781 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 03:29:07,781 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2021-12-17 03:29:07,781 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-17 03:29:07,781 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 03:29:07,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 03:29:07,782 INFO L85 PathProgramCache]: Analyzing trace with hash -1886067589, now seen corresponding path program 1 times [2021-12-17 03:29:07,782 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 03:29:07,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628597042] [2021-12-17 03:29:07,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:29:07,783 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 03:29:07,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:29:07,819 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-12-17 03:29:07,821 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 03:29:07,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628597042] [2021-12-17 03:29:07,821 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628597042] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 03:29:07,821 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 03:29:07,821 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-17 03:29:07,822 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284590310] [2021-12-17 03:29:07,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 03:29:07,822 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 03:29:07,822 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 03:29:07,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 03:29:07,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 03:29:07,824 INFO L87 Difference]: Start difference. First operand 1173 states and 1537 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 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) [2021-12-17 03:29:08,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 03:29:08,200 INFO L93 Difference]: Finished difference Result 3329 states and 4387 transitions. [2021-12-17 03:29:08,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 03:29:08,201 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 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 137 [2021-12-17 03:29:08,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 03:29:08,206 INFO L225 Difference]: With dead ends: 3329 [2021-12-17 03:29:08,207 INFO L226 Difference]: Without dead ends: 2158 [2021-12-17 03:29:08,208 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 03:29:08,209 INFO L933 BasicCegarLoop]: 111 mSDtfsCounter, 124 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-17 03:29:08,209 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 129 Invalid, 445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-17 03:29:08,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2158 states. [2021-12-17 03:29:08,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2158 to 2155. [2021-12-17 03:29:08,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2155 states, 2154 states have (on average 1.1996285979572887) internal successors, (2584), 2154 states have internal predecessors, (2584), 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) [2021-12-17 03:29:08,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2155 states to 2155 states and 2584 transitions. [2021-12-17 03:29:08,240 INFO L78 Accepts]: Start accepts. Automaton has 2155 states and 2584 transitions. Word has length 137 [2021-12-17 03:29:08,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 03:29:08,240 INFO L470 AbstractCegarLoop]: Abstraction has 2155 states and 2584 transitions. [2021-12-17 03:29:08,241 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 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) [2021-12-17 03:29:08,241 INFO L276 IsEmpty]: Start isEmpty. Operand 2155 states and 2584 transitions. [2021-12-17 03:29:08,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2021-12-17 03:29:08,244 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 03:29:08,244 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 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] [2021-12-17 03:29:08,244 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-17 03:29:08,245 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 03:29:08,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 03:29:08,245 INFO L85 PathProgramCache]: Analyzing trace with hash -581607180, now seen corresponding path program 1 times [2021-12-17 03:29:08,246 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 03:29:08,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082634748] [2021-12-17 03:29:08,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:29:08,246 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 03:29:08,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:29:08,284 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 44 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 03:29:08,285 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 03:29:08,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082634748] [2021-12-17 03:29:08,285 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082634748] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 03:29:08,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [732058082] [2021-12-17 03:29:08,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:29:08,286 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 03:29:08,286 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 03:29:08,287 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) [2021-12-17 03:29:08,301 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-17 03:29:08,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:29:08,373 INFO L263 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-17 03:29:08,377 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 03:29:08,625 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-12-17 03:29:08,625 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 03:29:08,626 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [732058082] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 03:29:08,626 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 03:29:08,626 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-12-17 03:29:08,626 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520191410] [2021-12-17 03:29:08,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 03:29:08,626 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 03:29:08,626 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 03:29:08,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 03:29:08,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-17 03:29:08,627 INFO L87 Difference]: Start difference. First operand 2155 states and 2584 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 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) [2021-12-17 03:29:08,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 03:29:08,978 INFO L93 Difference]: Finished difference Result 5008 states and 6114 transitions. [2021-12-17 03:29:08,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 03:29:08,978 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 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 143 [2021-12-17 03:29:08,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 03:29:08,987 INFO L225 Difference]: With dead ends: 5008 [2021-12-17 03:29:08,989 INFO L226 Difference]: Without dead ends: 2145 [2021-12-17 03:29:08,992 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-17 03:29:08,992 INFO L933 BasicCegarLoop]: 251 mSDtfsCounter, 135 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-17 03:29:08,993 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 275 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 342 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-17 03:29:08,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2145 states. [2021-12-17 03:29:09,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2145 to 2145. [2021-12-17 03:29:09,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2145 states, 2144 states have (on average 1.172108208955224) internal successors, (2513), 2144 states have internal predecessors, (2513), 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) [2021-12-17 03:29:09,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2145 states to 2145 states and 2513 transitions. [2021-12-17 03:29:09,024 INFO L78 Accepts]: Start accepts. Automaton has 2145 states and 2513 transitions. Word has length 143 [2021-12-17 03:29:09,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 03:29:09,029 INFO L470 AbstractCegarLoop]: Abstraction has 2145 states and 2513 transitions. [2021-12-17 03:29:09,029 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 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) [2021-12-17 03:29:09,029 INFO L276 IsEmpty]: Start isEmpty. Operand 2145 states and 2513 transitions. [2021-12-17 03:29:09,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2021-12-17 03:29:09,032 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 03:29:09,032 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 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] [2021-12-17 03:29:09,053 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-17 03:29:09,247 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 03:29:09,247 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 03:29:09,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 03:29:09,247 INFO L85 PathProgramCache]: Analyzing trace with hash 1317928783, now seen corresponding path program 1 times [2021-12-17 03:29:09,248 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 03:29:09,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653120347] [2021-12-17 03:29:09,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:29:09,248 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 03:29:09,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:29:09,313 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-12-17 03:29:09,313 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 03:29:09,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653120347] [2021-12-17 03:29:09,314 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653120347] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 03:29:09,314 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 03:29:09,314 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 03:29:09,314 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314784850] [2021-12-17 03:29:09,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 03:29:09,315 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 03:29:09,315 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 03:29:09,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 03:29:09,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 03:29:09,316 INFO L87 Difference]: Start difference. First operand 2145 states and 2513 transitions. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 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) [2021-12-17 03:29:09,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 03:29:09,616 INFO L93 Difference]: Finished difference Result 4846 states and 5702 transitions. [2021-12-17 03:29:09,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 03:29:09,617 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 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 145 [2021-12-17 03:29:09,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 03:29:09,623 INFO L225 Difference]: With dead ends: 4846 [2021-12-17 03:29:09,623 INFO L226 Difference]: Without dead ends: 2703 [2021-12-17 03:29:09,625 INFO L932 BasicCegarLoop]: 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 [2021-12-17 03:29:09,630 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 150 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-17 03:29:09,631 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 50 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 337 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-17 03:29:09,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2703 states. [2021-12-17 03:29:09,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2703 to 2702. [2021-12-17 03:29:09,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2702 states, 2701 states have (on average 1.1625323954091078) internal successors, (3140), 2701 states have internal predecessors, (3140), 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) [2021-12-17 03:29:09,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2702 states to 2702 states and 3140 transitions. [2021-12-17 03:29:09,664 INFO L78 Accepts]: Start accepts. Automaton has 2702 states and 3140 transitions. Word has length 145 [2021-12-17 03:29:09,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 03:29:09,664 INFO L470 AbstractCegarLoop]: Abstraction has 2702 states and 3140 transitions. [2021-12-17 03:29:09,664 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 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) [2021-12-17 03:29:09,665 INFO L276 IsEmpty]: Start isEmpty. Operand 2702 states and 3140 transitions. [2021-12-17 03:29:09,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2021-12-17 03:29:09,668 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 03:29:09,668 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 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] [2021-12-17 03:29:09,669 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-17 03:29:09,669 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 03:29:09,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 03:29:09,670 INFO L85 PathProgramCache]: Analyzing trace with hash -1242957883, now seen corresponding path program 1 times [2021-12-17 03:29:09,670 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 03:29:09,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306115523] [2021-12-17 03:29:09,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:29:09,671 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 03:29:09,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:29:09,725 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-12-17 03:29:09,726 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 03:29:09,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306115523] [2021-12-17 03:29:09,726 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306115523] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 03:29:09,726 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 03:29:09,726 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 03:29:09,727 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667838000] [2021-12-17 03:29:09,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 03:29:09,727 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 03:29:09,727 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 03:29:09,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 03:29:09,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 03:29:09,728 INFO L87 Difference]: Start difference. First operand 2702 states and 3140 transitions. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 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) [2021-12-17 03:29:10,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 03:29:10,020 INFO L93 Difference]: Finished difference Result 5402 states and 6281 transitions. [2021-12-17 03:29:10,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 03:29:10,020 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 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 149 [2021-12-17 03:29:10,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 03:29:10,026 INFO L225 Difference]: With dead ends: 5402 [2021-12-17 03:29:10,026 INFO L226 Difference]: Without dead ends: 2422 [2021-12-17 03:29:10,028 INFO L932 BasicCegarLoop]: 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 [2021-12-17 03:29:10,029 INFO L933 BasicCegarLoop]: 224 mSDtfsCounter, 142 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-17 03:29:10,030 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 245 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 333 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-17 03:29:10,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2422 states. [2021-12-17 03:29:10,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2422 to 2414. [2021-12-17 03:29:10,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2414 states, 2413 states have (on average 1.1334438458350602) internal successors, (2735), 2413 states have internal predecessors, (2735), 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) [2021-12-17 03:29:10,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2414 states to 2414 states and 2735 transitions. [2021-12-17 03:29:10,065 INFO L78 Accepts]: Start accepts. Automaton has 2414 states and 2735 transitions. Word has length 149 [2021-12-17 03:29:10,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 03:29:10,066 INFO L470 AbstractCegarLoop]: Abstraction has 2414 states and 2735 transitions. [2021-12-17 03:29:10,066 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 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) [2021-12-17 03:29:10,066 INFO L276 IsEmpty]: Start isEmpty. Operand 2414 states and 2735 transitions. [2021-12-17 03:29:10,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-12-17 03:29:10,069 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 03:29:10,069 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 3, 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] [2021-12-17 03:29:10,070 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-17 03:29:10,070 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 03:29:10,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 03:29:10,070 INFO L85 PathProgramCache]: Analyzing trace with hash 1216962285, now seen corresponding path program 1 times [2021-12-17 03:29:10,071 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 03:29:10,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339472197] [2021-12-17 03:29:10,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:29:10,071 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 03:29:10,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:29:10,136 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-12-17 03:29:10,136 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 03:29:10,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339472197] [2021-12-17 03:29:10,137 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339472197] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 03:29:10,137 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 03:29:10,137 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 03:29:10,137 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825330523] [2021-12-17 03:29:10,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 03:29:10,137 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 03:29:10,138 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 03:29:10,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 03:29:10,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 03:29:10,139 INFO L87 Difference]: Start difference. First operand 2414 states and 2735 transitions. Second operand has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 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) [2021-12-17 03:29:10,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 03:29:10,434 INFO L93 Difference]: Finished difference Result 4827 states and 5469 transitions. [2021-12-17 03:29:10,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 03:29:10,434 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 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 167 [2021-12-17 03:29:10,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 03:29:10,440 INFO L225 Difference]: With dead ends: 4827 [2021-12-17 03:29:10,440 INFO L226 Difference]: Without dead ends: 2415 [2021-12-17 03:29:10,442 INFO L932 BasicCegarLoop]: 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 [2021-12-17 03:29:10,443 INFO L933 BasicCegarLoop]: 218 mSDtfsCounter, 116 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-17 03:29:10,444 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 231 Invalid, 381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 346 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-17 03:29:10,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2415 states. [2021-12-17 03:29:10,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2415 to 2414. [2021-12-17 03:29:10,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2414 states, 2413 states have (on average 1.1040198922503108) internal successors, (2664), 2413 states have internal predecessors, (2664), 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) [2021-12-17 03:29:10,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2414 states to 2414 states and 2664 transitions. [2021-12-17 03:29:10,472 INFO L78 Accepts]: Start accepts. Automaton has 2414 states and 2664 transitions. Word has length 167 [2021-12-17 03:29:10,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 03:29:10,473 INFO L470 AbstractCegarLoop]: Abstraction has 2414 states and 2664 transitions. [2021-12-17 03:29:10,473 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 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) [2021-12-17 03:29:10,473 INFO L276 IsEmpty]: Start isEmpty. Operand 2414 states and 2664 transitions. [2021-12-17 03:29:10,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2021-12-17 03:29:10,476 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 03:29:10,476 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-12-17 03:29:10,477 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-17 03:29:10,477 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 03:29:10,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 03:29:10,477 INFO L85 PathProgramCache]: Analyzing trace with hash 1303669007, now seen corresponding path program 1 times [2021-12-17 03:29:10,477 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 03:29:10,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043491630] [2021-12-17 03:29:10,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:29:10,478 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 03:29:10,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:29:10,521 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-12-17 03:29:10,521 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 03:29:10,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043491630] [2021-12-17 03:29:10,521 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043491630] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 03:29:10,522 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 03:29:10,522 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 03:29:10,522 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044767610] [2021-12-17 03:29:10,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 03:29:10,522 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 03:29:10,522 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 03:29:10,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 03:29:10,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 03:29:10,524 INFO L87 Difference]: Start difference. First operand 2414 states and 2664 transitions. Second operand has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 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) [2021-12-17 03:29:10,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 03:29:10,803 INFO L93 Difference]: Finished difference Result 5671 states and 6330 transitions. [2021-12-17 03:29:10,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 03:29:10,804 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 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 188 [2021-12-17 03:29:10,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 03:29:10,811 INFO L225 Difference]: With dead ends: 5671 [2021-12-17 03:29:10,812 INFO L226 Difference]: Without dead ends: 3259 [2021-12-17 03:29:10,814 INFO L932 BasicCegarLoop]: 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 [2021-12-17 03:29:10,814 INFO L933 BasicCegarLoop]: 193 mSDtfsCounter, 136 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-17 03:29:10,815 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 203 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-17 03:29:10,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3259 states. [2021-12-17 03:29:10,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3259 to 3257. [2021-12-17 03:29:10,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3257 states, 3256 states have (on average 1.1071867321867321) internal successors, (3605), 3256 states have internal predecessors, (3605), 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) [2021-12-17 03:29:10,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3257 states to 3257 states and 3605 transitions. [2021-12-17 03:29:10,868 INFO L78 Accepts]: Start accepts. Automaton has 3257 states and 3605 transitions. Word has length 188 [2021-12-17 03:29:10,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 03:29:10,869 INFO L470 AbstractCegarLoop]: Abstraction has 3257 states and 3605 transitions. [2021-12-17 03:29:10,869 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 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) [2021-12-17 03:29:10,869 INFO L276 IsEmpty]: Start isEmpty. Operand 3257 states and 3605 transitions. [2021-12-17 03:29:10,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2021-12-17 03:29:10,872 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 03:29:10,873 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 03:29:10,873 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-17 03:29:10,873 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 03:29:10,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 03:29:10,873 INFO L85 PathProgramCache]: Analyzing trace with hash 122649121, now seen corresponding path program 1 times [2021-12-17 03:29:10,874 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 03:29:10,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625226156] [2021-12-17 03:29:10,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:29:10,874 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 03:29:10,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:29:10,931 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-12-17 03:29:10,931 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 03:29:10,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625226156] [2021-12-17 03:29:10,932 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625226156] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 03:29:10,932 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 03:29:10,932 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 03:29:10,932 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249826355] [2021-12-17 03:29:10,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 03:29:10,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 03:29:10,932 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 03:29:10,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 03:29:10,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 03:29:10,933 INFO L87 Difference]: Start difference. First operand 3257 states and 3605 transitions. Second operand has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 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) [2021-12-17 03:29:11,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 03:29:11,204 INFO L93 Difference]: Finished difference Result 7212 states and 7974 transitions. [2021-12-17 03:29:11,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 03:29:11,204 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 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 204 [2021-12-17 03:29:11,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 03:29:11,212 INFO L225 Difference]: With dead ends: 7212 [2021-12-17 03:29:11,212 INFO L226 Difference]: Without dead ends: 3255 [2021-12-17 03:29:11,215 INFO L932 BasicCegarLoop]: 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 [2021-12-17 03:29:11,216 INFO L933 BasicCegarLoop]: 204 mSDtfsCounter, 87 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 331 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-17 03:29:11,216 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [87 Valid, 216 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 331 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-17 03:29:11,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3255 states. [2021-12-17 03:29:11,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3255 to 3255. [2021-12-17 03:29:11,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3255 states, 3254 states have (on average 1.0623847572218807) internal successors, (3457), 3254 states have internal predecessors, (3457), 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) [2021-12-17 03:29:11,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3255 states to 3255 states and 3457 transitions. [2021-12-17 03:29:11,251 INFO L78 Accepts]: Start accepts. Automaton has 3255 states and 3457 transitions. Word has length 204 [2021-12-17 03:29:11,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 03:29:11,251 INFO L470 AbstractCegarLoop]: Abstraction has 3255 states and 3457 transitions. [2021-12-17 03:29:11,252 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 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) [2021-12-17 03:29:11,252 INFO L276 IsEmpty]: Start isEmpty. Operand 3255 states and 3457 transitions. [2021-12-17 03:29:11,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2021-12-17 03:29:11,255 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 03:29:11,256 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 03:29:11,256 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-17 03:29:11,256 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 03:29:11,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 03:29:11,257 INFO L85 PathProgramCache]: Analyzing trace with hash 870011400, now seen corresponding path program 1 times [2021-12-17 03:29:11,257 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 03:29:11,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969110550] [2021-12-17 03:29:11,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:29:11,257 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 03:29:11,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:29:11,307 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 172 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2021-12-17 03:29:11,308 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 03:29:11,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969110550] [2021-12-17 03:29:11,308 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969110550] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 03:29:11,308 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 03:29:11,308 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 03:29:11,308 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274014069] [2021-12-17 03:29:11,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 03:29:11,309 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 03:29:11,309 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 03:29:11,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 03:29:11,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 03:29:11,310 INFO L87 Difference]: Start difference. First operand 3255 states and 3457 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 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) [2021-12-17 03:29:11,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 03:29:11,582 INFO L93 Difference]: Finished difference Result 7069 states and 7509 transitions. [2021-12-17 03:29:11,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 03:29:11,588 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 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 227 [2021-12-17 03:29:11,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 03:29:11,596 INFO L225 Difference]: With dead ends: 7069 [2021-12-17 03:29:11,596 INFO L226 Difference]: Without dead ends: 3534 [2021-12-17 03:29:11,599 INFO L932 BasicCegarLoop]: 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 [2021-12-17 03:29:11,600 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 158 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-17 03:29:11,601 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 63 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-17 03:29:11,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3534 states. [2021-12-17 03:29:11,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3534 to 3394. [2021-12-17 03:29:11,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3394 states, 3393 states have (on average 1.0557029177718833) internal successors, (3582), 3393 states have internal predecessors, (3582), 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) [2021-12-17 03:29:11,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3394 states to 3394 states and 3582 transitions. [2021-12-17 03:29:11,638 INFO L78 Accepts]: Start accepts. Automaton has 3394 states and 3582 transitions. Word has length 227 [2021-12-17 03:29:11,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 03:29:11,638 INFO L470 AbstractCegarLoop]: Abstraction has 3394 states and 3582 transitions. [2021-12-17 03:29:11,639 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 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) [2021-12-17 03:29:11,639 INFO L276 IsEmpty]: Start isEmpty. Operand 3394 states and 3582 transitions. [2021-12-17 03:29:11,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2021-12-17 03:29:11,643 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 03:29:11,643 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 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, 2, 2, 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] [2021-12-17 03:29:11,643 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-17 03:29:11,643 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 03:29:11,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 03:29:11,644 INFO L85 PathProgramCache]: Analyzing trace with hash -293987733, now seen corresponding path program 1 times [2021-12-17 03:29:11,644 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 03:29:11,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90361256] [2021-12-17 03:29:11,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:29:11,644 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 03:29:11,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:29:11,705 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 213 proven. 16 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2021-12-17 03:29:11,705 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 03:29:11,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90361256] [2021-12-17 03:29:11,705 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90361256] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 03:29:11,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1849186858] [2021-12-17 03:29:11,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:29:11,706 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 03:29:11,706 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 03:29:11,707 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) [2021-12-17 03:29:11,744 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-17 03:29:11,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:29:11,797 INFO L263 TraceCheckSpWp]: Trace formula consists of 459 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-17 03:29:11,800 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 03:29:12,136 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 195 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2021-12-17 03:29:12,136 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 03:29:12,136 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1849186858] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 03:29:12,136 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 03:29:12,136 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-12-17 03:29:12,136 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581299567] [2021-12-17 03:29:12,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 03:29:12,137 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 03:29:12,137 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 03:29:12,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 03:29:12,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-17 03:29:12,137 INFO L87 Difference]: Start difference. First operand 3394 states and 3582 transitions. Second operand has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 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) [2021-12-17 03:29:12,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 03:29:12,372 INFO L93 Difference]: Finished difference Result 5937 states and 6259 transitions. [2021-12-17 03:29:12,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 03:29:12,372 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 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 245 [2021-12-17 03:29:12,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 03:29:12,378 INFO L225 Difference]: With dead ends: 5937 [2021-12-17 03:29:12,378 INFO L226 Difference]: Without dead ends: 2545 [2021-12-17 03:29:12,381 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 245 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-17 03:29:12,381 INFO L933 BasicCegarLoop]: 179 mSDtfsCounter, 142 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-17 03:29:12,382 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 189 Invalid, 332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-17 03:29:12,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2545 states. [2021-12-17 03:29:12,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2545 to 2265. [2021-12-17 03:29:12,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2265 states, 2264 states have (on average 1.0318021201413428) internal successors, (2336), 2264 states have internal predecessors, (2336), 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) [2021-12-17 03:29:12,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2265 states to 2265 states and 2336 transitions. [2021-12-17 03:29:12,407 INFO L78 Accepts]: Start accepts. Automaton has 2265 states and 2336 transitions. Word has length 245 [2021-12-17 03:29:12,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 03:29:12,408 INFO L470 AbstractCegarLoop]: Abstraction has 2265 states and 2336 transitions. [2021-12-17 03:29:12,408 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 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) [2021-12-17 03:29:12,408 INFO L276 IsEmpty]: Start isEmpty. Operand 2265 states and 2336 transitions. [2021-12-17 03:29:12,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2021-12-17 03:29:12,412 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 03:29:12,412 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 03:29:12,447 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-17 03:29:12,627 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-12-17 03:29:12,628 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 03:29:12,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 03:29:12,628 INFO L85 PathProgramCache]: Analyzing trace with hash -6590281, now seen corresponding path program 1 times [2021-12-17 03:29:12,628 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 03:29:12,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119791891] [2021-12-17 03:29:12,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:29:12,628 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 03:29:12,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:29:12,680 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 266 proven. 16 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2021-12-17 03:29:12,681 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 03:29:12,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119791891] [2021-12-17 03:29:12,681 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119791891] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 03:29:12,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [646187415] [2021-12-17 03:29:12,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:29:12,681 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 03:29:12,681 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 03:29:12,696 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-17 03:29:12,697 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-17 03:29:12,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:29:12,778 INFO L263 TraceCheckSpWp]: Trace formula consists of 482 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-17 03:29:12,782 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 03:29:13,108 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 274 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2021-12-17 03:29:13,109 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 03:29:13,109 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [646187415] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 03:29:13,109 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 03:29:13,109 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-12-17 03:29:13,109 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899183694] [2021-12-17 03:29:13,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 03:29:13,110 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 03:29:13,110 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 03:29:13,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 03:29:13,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-17 03:29:13,110 INFO L87 Difference]: Start difference. First operand 2265 states and 2336 transitions. Second operand has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 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) [2021-12-17 03:29:13,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 03:29:13,325 INFO L93 Difference]: Finished difference Result 2545 states and 2624 transitions. [2021-12-17 03:29:13,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 03:29:13,325 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 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 295 [2021-12-17 03:29:13,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 03:29:13,325 INFO L225 Difference]: With dead ends: 2545 [2021-12-17 03:29:13,325 INFO L226 Difference]: Without dead ends: 0 [2021-12-17 03:29:13,327 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 295 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-17 03:29:13,327 INFO L933 BasicCegarLoop]: 182 mSDtfsCounter, 103 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-17 03:29:13,327 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 195 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-17 03:29:13,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-17 03:29:13,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-17 03:29:13,328 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) [2021-12-17 03:29:13,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-17 03:29:13,328 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 295 [2021-12-17 03:29:13,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 03:29:13,328 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-17 03:29:13,328 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 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) [2021-12-17 03:29:13,328 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-17 03:29:13,328 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-17 03:29:13,330 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-17 03:29:13,350 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-17 03:29:13,531 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 03:29:13,533 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-17 03:29:13,988 INFO L858 garLoopResultBuilder]: For program point L565-1(lines 39 608) no Hoare annotation was computed. [2021-12-17 03:29:13,988 INFO L858 garLoopResultBuilder]: For program point L499-1(lines 39 608) no Hoare annotation was computed. [2021-12-17 03:29:13,988 INFO L858 garLoopResultBuilder]: For program point L433-1(lines 39 608) no Hoare annotation was computed. [2021-12-17 03:29:13,989 INFO L858 garLoopResultBuilder]: For program point L301(lines 301 423) no Hoare annotation was computed. [2021-12-17 03:29:13,989 INFO L858 garLoopResultBuilder]: For program point L235(lines 235 423) no Hoare annotation was computed. [2021-12-17 03:29:13,989 INFO L858 garLoopResultBuilder]: For program point L169(lines 169 423) no Hoare annotation was computed. [2021-12-17 03:29:13,989 INFO L858 garLoopResultBuilder]: For program point L566(line 566) no Hoare annotation was computed. [2021-12-17 03:29:13,989 INFO L858 garLoopResultBuilder]: For program point L500(line 500) no Hoare annotation was computed. [2021-12-17 03:29:13,989 INFO L858 garLoopResultBuilder]: For program point L434(line 434) no Hoare annotation was computed. [2021-12-17 03:29:13,989 INFO L858 garLoopResultBuilder]: For program point L303(lines 303 423) no Hoare annotation was computed. [2021-12-17 03:29:13,989 INFO L858 garLoopResultBuilder]: For program point L105(lines 105 423) no Hoare annotation was computed. [2021-12-17 03:29:13,989 INFO L858 garLoopResultBuilder]: For program point L568-1(lines 39 608) no Hoare annotation was computed. [2021-12-17 03:29:13,990 INFO L858 garLoopResultBuilder]: For program point L502-1(lines 39 608) no Hoare annotation was computed. [2021-12-17 03:29:13,990 INFO L858 garLoopResultBuilder]: For program point L436-1(lines 39 608) no Hoare annotation was computed. [2021-12-17 03:29:13,990 INFO L858 garLoopResultBuilder]: For program point L40(lines 40 423) no Hoare annotation was computed. [2021-12-17 03:29:13,990 INFO L858 garLoopResultBuilder]: For program point L569(line 569) no Hoare annotation was computed. [2021-12-17 03:29:13,990 INFO L858 garLoopResultBuilder]: For program point L503(line 503) no Hoare annotation was computed. [2021-12-17 03:29:13,990 INFO L858 garLoopResultBuilder]: For program point L437(line 437) no Hoare annotation was computed. [2021-12-17 03:29:13,990 INFO L858 garLoopResultBuilder]: For program point L371(lines 371 423) no Hoare annotation was computed. [2021-12-17 03:29:13,990 INFO L858 garLoopResultBuilder]: For program point L571-1(lines 39 608) no Hoare annotation was computed. [2021-12-17 03:29:13,990 INFO L858 garLoopResultBuilder]: For program point L505-1(lines 39 608) no Hoare annotation was computed. [2021-12-17 03:29:13,990 INFO L858 garLoopResultBuilder]: For program point L439-1(lines 39 608) no Hoare annotation was computed. [2021-12-17 03:29:13,990 INFO L858 garLoopResultBuilder]: For program point L307(lines 307 423) no Hoare annotation was computed. [2021-12-17 03:29:13,991 INFO L858 garLoopResultBuilder]: For program point L175(lines 175 423) no Hoare annotation was computed. [2021-12-17 03:29:13,991 INFO L858 garLoopResultBuilder]: For program point L109(lines 109 423) no Hoare annotation was computed. [2021-12-17 03:29:13,991 INFO L858 garLoopResultBuilder]: For program point L572(line 572) no Hoare annotation was computed. [2021-12-17 03:29:13,991 INFO L858 garLoopResultBuilder]: For program point L506(line 506) no Hoare annotation was computed. [2021-12-17 03:29:13,991 INFO L858 garLoopResultBuilder]: For program point L440(line 440) no Hoare annotation was computed. [2021-12-17 03:29:13,991 INFO L858 garLoopResultBuilder]: For program point L308(lines 308 317) no Hoare annotation was computed. [2021-12-17 03:29:13,991 INFO L858 garLoopResultBuilder]: For program point L242(lines 242 423) no Hoare annotation was computed. [2021-12-17 03:29:13,991 INFO L858 garLoopResultBuilder]: For program point L308-2(lines 308 317) no Hoare annotation was computed. [2021-12-17 03:29:13,991 INFO L858 garLoopResultBuilder]: For program point L45(lines 45 423) no Hoare annotation was computed. [2021-12-17 03:29:13,991 INFO L858 garLoopResultBuilder]: For program point L574-1(lines 39 608) no Hoare annotation was computed. [2021-12-17 03:29:13,991 INFO L858 garLoopResultBuilder]: For program point L508-1(lines 39 608) no Hoare annotation was computed. [2021-12-17 03:29:13,991 INFO L858 garLoopResultBuilder]: For program point L442-1(lines 39 608) no Hoare annotation was computed. [2021-12-17 03:29:13,991 INFO L858 garLoopResultBuilder]: For program point L244(lines 244 423) no Hoare annotation was computed. [2021-12-17 03:29:13,991 INFO L858 garLoopResultBuilder]: For program point L575(line 575) no Hoare annotation was computed. [2021-12-17 03:29:13,991 INFO L858 garLoopResultBuilder]: For program point L509(line 509) no Hoare annotation was computed. [2021-12-17 03:29:13,991 INFO L858 garLoopResultBuilder]: For program point L443(line 443) no Hoare annotation was computed. [2021-12-17 03:29:13,992 INFO L858 garLoopResultBuilder]: For program point L179(lines 179 423) no Hoare annotation was computed. [2021-12-17 03:29:13,992 INFO L858 garLoopResultBuilder]: For program point L378(lines 378 423) no Hoare annotation was computed. [2021-12-17 03:29:13,992 INFO L858 garLoopResultBuilder]: For program point L48(lines 48 423) no Hoare annotation was computed. [2021-12-17 03:29:13,992 INFO L858 garLoopResultBuilder]: For program point L577-1(lines 39 608) no Hoare annotation was computed. [2021-12-17 03:29:13,992 INFO L858 garLoopResultBuilder]: For program point L511-1(lines 39 608) no Hoare annotation was computed. [2021-12-17 03:29:13,992 INFO L858 garLoopResultBuilder]: For program point L445-1(lines 39 608) no Hoare annotation was computed. [2021-12-17 03:29:13,992 INFO L858 garLoopResultBuilder]: For program point L247(lines 247 423) no Hoare annotation was computed. [2021-12-17 03:29:13,992 INFO L858 garLoopResultBuilder]: For program point L578(line 578) no Hoare annotation was computed. [2021-12-17 03:29:13,992 INFO L858 garLoopResultBuilder]: For program point L512(line 512) no Hoare annotation was computed. [2021-12-17 03:29:13,992 INFO L858 garLoopResultBuilder]: For program point L446(line 446) no Hoare annotation was computed. [2021-12-17 03:29:13,992 INFO L858 garLoopResultBuilder]: For program point L248(lines 248 256) no Hoare annotation was computed. [2021-12-17 03:29:13,992 INFO L858 garLoopResultBuilder]: For program point L248-2(lines 248 256) no Hoare annotation was computed. [2021-12-17 03:29:13,993 INFO L858 garLoopResultBuilder]: For program point L116(lines 116 423) no Hoare annotation was computed. [2021-12-17 03:29:13,993 INFO L858 garLoopResultBuilder]: For program point L580-1(lines 39 608) no Hoare annotation was computed. [2021-12-17 03:29:13,993 INFO L858 garLoopResultBuilder]: For program point L514-1(lines 39 608) no Hoare annotation was computed. [2021-12-17 03:29:13,993 INFO L858 garLoopResultBuilder]: For program point L448-1(lines 39 608) no Hoare annotation was computed. [2021-12-17 03:29:13,993 INFO L858 garLoopResultBuilder]: For program point L52(lines 52 423) no Hoare annotation was computed. [2021-12-17 03:29:13,993 INFO L858 garLoopResultBuilder]: For program point L581(line 581) no Hoare annotation was computed. [2021-12-17 03:29:13,993 INFO L858 garLoopResultBuilder]: For program point L515(line 515) no Hoare annotation was computed. [2021-12-17 03:29:13,993 INFO L858 garLoopResultBuilder]: For program point L449(line 449) no Hoare annotation was computed. [2021-12-17 03:29:13,993 INFO L858 garLoopResultBuilder]: For program point L185(lines 185 423) no Hoare annotation was computed. [2021-12-17 03:29:13,993 INFO L858 garLoopResultBuilder]: For program point L583-1(lines 39 608) no Hoare annotation was computed. [2021-12-17 03:29:13,993 INFO L858 garLoopResultBuilder]: For program point L517-1(lines 39 608) no Hoare annotation was computed. [2021-12-17 03:29:13,993 INFO L858 garLoopResultBuilder]: For program point L451-1(lines 39 608) no Hoare annotation was computed. [2021-12-17 03:29:13,993 INFO L858 garLoopResultBuilder]: For program point L385(lines 385 423) no Hoare annotation was computed. [2021-12-17 03:29:13,993 INFO L858 garLoopResultBuilder]: For program point L319(lines 319 423) no Hoare annotation was computed. [2021-12-17 03:29:13,993 INFO L858 garLoopResultBuilder]: For program point L584(line 584) no Hoare annotation was computed. [2021-12-17 03:29:13,993 INFO L858 garLoopResultBuilder]: For program point L518(line 518) no Hoare annotation was computed. [2021-12-17 03:29:13,994 INFO L858 garLoopResultBuilder]: For program point L452(line 452) no Hoare annotation was computed. [2021-12-17 03:29:13,994 INFO L858 garLoopResultBuilder]: For program point L189(lines 189 423) no Hoare annotation was computed. [2021-12-17 03:29:13,994 INFO L858 garLoopResultBuilder]: For program point L123(lines 123 423) no Hoare annotation was computed. [2021-12-17 03:29:13,994 INFO L858 garLoopResultBuilder]: For program point L57(lines 57 423) no Hoare annotation was computed. [2021-12-17 03:29:13,994 INFO L858 garLoopResultBuilder]: For program point L586-1(lines 39 608) no Hoare annotation was computed. [2021-12-17 03:29:13,994 INFO L858 garLoopResultBuilder]: For program point L520-1(lines 39 608) no Hoare annotation was computed. [2021-12-17 03:29:13,994 INFO L858 garLoopResultBuilder]: For program point L454-1(lines 39 608) no Hoare annotation was computed. [2021-12-17 03:29:13,994 INFO L858 garLoopResultBuilder]: For program point L388(lines 388 423) no Hoare annotation was computed. [2021-12-17 03:29:13,994 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-17 03:29:13,994 INFO L858 garLoopResultBuilder]: For program point L587(line 587) no Hoare annotation was computed. [2021-12-17 03:29:13,994 INFO L858 garLoopResultBuilder]: For program point L521(line 521) no Hoare annotation was computed. [2021-12-17 03:29:13,994 INFO L858 garLoopResultBuilder]: For program point L455(line 455) no Hoare annotation was computed. [2021-12-17 03:29:13,994 INFO L858 garLoopResultBuilder]: For program point L390(lines 390 423) no Hoare annotation was computed. [2021-12-17 03:29:13,994 INFO L858 garLoopResultBuilder]: For program point L324(lines 324 423) no Hoare annotation was computed. [2021-12-17 03:29:13,995 INFO L858 garLoopResultBuilder]: For program point L258(lines 258 423) no Hoare annotation was computed. [2021-12-17 03:29:13,995 INFO L858 garLoopResultBuilder]: For program point L60(lines 60 423) no Hoare annotation was computed. [2021-12-17 03:29:13,995 INFO L858 garLoopResultBuilder]: For program point L589-1(lines 39 608) no Hoare annotation was computed. [2021-12-17 03:29:13,995 INFO L858 garLoopResultBuilder]: For program point L523-1(lines 39 608) no Hoare annotation was computed. [2021-12-17 03:29:13,995 INFO L858 garLoopResultBuilder]: For program point L457-1(lines 39 608) no Hoare annotation was computed. [2021-12-17 03:29:13,995 INFO L858 garLoopResultBuilder]: For program point L391(lines 391 397) no Hoare annotation was computed. [2021-12-17 03:29:13,995 INFO L858 garLoopResultBuilder]: For program point L325(lines 325 336) no Hoare annotation was computed. [2021-12-17 03:29:13,995 INFO L858 garLoopResultBuilder]: For program point L391-2(lines 391 397) no Hoare annotation was computed. [2021-12-17 03:29:13,995 INFO L858 garLoopResultBuilder]: For program point L325-2(lines 325 336) no Hoare annotation was computed. [2021-12-17 03:29:13,995 INFO L858 garLoopResultBuilder]: For program point L590(line 590) no Hoare annotation was computed. [2021-12-17 03:29:13,996 INFO L858 garLoopResultBuilder]: For program point L524(line 524) no Hoare annotation was computed. [2021-12-17 03:29:13,996 INFO L858 garLoopResultBuilder]: For program point L458(line 458) no Hoare annotation was computed. [2021-12-17 03:29:13,996 INFO L858 garLoopResultBuilder]: For program point L195(lines 195 423) no Hoare annotation was computed. [2021-12-17 03:29:13,996 INFO L858 garLoopResultBuilder]: For program point L129(lines 129 423) no Hoare annotation was computed. [2021-12-17 03:29:13,996 INFO L858 garLoopResultBuilder]: For program point L592-1(lines 39 608) no Hoare annotation was computed. [2021-12-17 03:29:13,996 INFO L858 garLoopResultBuilder]: For program point L526-1(lines 39 608) no Hoare annotation was computed. [2021-12-17 03:29:13,996 INFO L858 garLoopResultBuilder]: For program point L460-1(lines 39 608) no Hoare annotation was computed. [2021-12-17 03:29:13,996 INFO L858 garLoopResultBuilder]: For program point L64(lines 64 423) no Hoare annotation was computed. [2021-12-17 03:29:13,996 INFO L858 garLoopResultBuilder]: For program point L593(line 593) no Hoare annotation was computed. [2021-12-17 03:29:13,997 INFO L858 garLoopResultBuilder]: For program point L527(line 527) no Hoare annotation was computed. [2021-12-17 03:29:13,997 INFO L858 garLoopResultBuilder]: For program point L461(line 461) no Hoare annotation was computed. [2021-12-17 03:29:13,997 INFO L858 garLoopResultBuilder]: For program point L263(lines 263 423) no Hoare annotation was computed. [2021-12-17 03:29:13,997 INFO L858 garLoopResultBuilder]: For program point L197(lines 197 423) no Hoare annotation was computed. [2021-12-17 03:29:13,997 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-17 03:29:13,997 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 503) no Hoare annotation was computed. [2021-12-17 03:29:13,997 INFO L858 garLoopResultBuilder]: For program point L595-1(lines 39 608) no Hoare annotation was computed. [2021-12-17 03:29:13,997 INFO L858 garLoopResultBuilder]: For program point L529-1(lines 39 608) no Hoare annotation was computed. [2021-12-17 03:29:13,997 INFO L858 garLoopResultBuilder]: For program point L463-1(lines 39 608) no Hoare annotation was computed. [2021-12-17 03:29:13,998 INFO L858 garLoopResultBuilder]: For program point L199(lines 199 423) no Hoare annotation was computed. [2021-12-17 03:29:13,998 INFO L858 garLoopResultBuilder]: For program point L133(lines 133 423) no Hoare annotation was computed. [2021-12-17 03:29:13,998 INFO L858 garLoopResultBuilder]: For program point L596(line 596) no Hoare annotation was computed. [2021-12-17 03:29:13,998 INFO L858 garLoopResultBuilder]: For program point L530(line 530) no Hoare annotation was computed. [2021-12-17 03:29:13,998 INFO L858 garLoopResultBuilder]: For program point L464(line 464) no Hoare annotation was computed. [2021-12-17 03:29:13,998 INFO L858 garLoopResultBuilder]: For program point L399(lines 399 423) no Hoare annotation was computed. [2021-12-17 03:29:13,998 INFO L858 garLoopResultBuilder]: For program point L201(lines 201 423) no Hoare annotation was computed. [2021-12-17 03:29:13,998 INFO L858 garLoopResultBuilder]: For program point L69(lines 69 423) no Hoare annotation was computed. [2021-12-17 03:29:13,998 INFO L858 garLoopResultBuilder]: For program point L598-1(lines 39 608) no Hoare annotation was computed. [2021-12-17 03:29:13,998 INFO L858 garLoopResultBuilder]: For program point L532-1(lines 39 608) no Hoare annotation was computed. [2021-12-17 03:29:13,999 INFO L858 garLoopResultBuilder]: For program point L466-1(lines 39 608) no Hoare annotation was computed. [2021-12-17 03:29:13,999 INFO L858 garLoopResultBuilder]: For program point L599(line 599) no Hoare annotation was computed. [2021-12-17 03:29:13,999 INFO L858 garLoopResultBuilder]: For program point L533(line 533) no Hoare annotation was computed. [2021-12-17 03:29:13,999 INFO L858 garLoopResultBuilder]: For program point L467(line 467) no Hoare annotation was computed. [2021-12-17 03:29:14,000 INFO L858 garLoopResultBuilder]: For program point L269(lines 269 423) no Hoare annotation was computed. [2021-12-17 03:29:14,000 INFO L858 garLoopResultBuilder]: For program point L204(lines 204 423) no Hoare annotation was computed. [2021-12-17 03:29:14,000 INFO L858 garLoopResultBuilder]: For program point L601-1(lines 39 608) no Hoare annotation was computed. [2021-12-17 03:29:14,000 INFO L858 garLoopResultBuilder]: For program point L535-1(lines 39 608) no Hoare annotation was computed. [2021-12-17 03:29:14,001 INFO L858 garLoopResultBuilder]: For program point L469-1(lines 39 608) no Hoare annotation was computed. [2021-12-17 03:29:14,001 INFO L858 garLoopResultBuilder]: For program point L271(lines 271 423) no Hoare annotation was computed. [2021-12-17 03:29:14,001 INFO L858 garLoopResultBuilder]: For program point L602(line 602) no Hoare annotation was computed. [2021-12-17 03:29:14,001 INFO L858 garLoopResultBuilder]: For program point L536(line 536) no Hoare annotation was computed. [2021-12-17 03:29:14,001 INFO L858 garLoopResultBuilder]: For program point L470(line 470) no Hoare annotation was computed. [2021-12-17 03:29:14,001 INFO L858 garLoopResultBuilder]: For program point L404(lines 404 423) no Hoare annotation was computed. [2021-12-17 03:29:14,001 INFO L858 garLoopResultBuilder]: For program point L338(lines 338 423) no Hoare annotation was computed. [2021-12-17 03:29:14,001 INFO L858 garLoopResultBuilder]: For program point L272(lines 272 284) no Hoare annotation was computed. [2021-12-17 03:29:14,001 INFO L858 garLoopResultBuilder]: For program point L272-2(lines 272 284) no Hoare annotation was computed. [2021-12-17 03:29:14,001 INFO L858 garLoopResultBuilder]: For program point L140(lines 140 423) no Hoare annotation was computed. [2021-12-17 03:29:14,002 INFO L858 garLoopResultBuilder]: For program point L75(lines 75 423) no Hoare annotation was computed. [2021-12-17 03:29:14,002 INFO L858 garLoopResultBuilder]: For program point L604-1(lines 604 606) no Hoare annotation was computed. [2021-12-17 03:29:14,002 INFO L858 garLoopResultBuilder]: For program point L538-1(lines 39 608) no Hoare annotation was computed. [2021-12-17 03:29:14,002 INFO L858 garLoopResultBuilder]: For program point L472-1(lines 39 608) no Hoare annotation was computed. [2021-12-17 03:29:14,002 INFO L858 garLoopResultBuilder]: For program point L208(lines 208 423) no Hoare annotation was computed. [2021-12-17 03:29:14,002 INFO L858 garLoopResultBuilder]: For program point L605(line 605) no Hoare annotation was computed. [2021-12-17 03:29:14,002 INFO L858 garLoopResultBuilder]: For program point L539(line 539) no Hoare annotation was computed. [2021-12-17 03:29:14,002 INFO L858 garLoopResultBuilder]: For program point L473(line 473) no Hoare annotation was computed. [2021-12-17 03:29:14,002 INFO L858 garLoopResultBuilder]: For program point L341(lines 341 423) no Hoare annotation was computed. [2021-12-17 03:29:14,002 INFO L858 garLoopResultBuilder]: For program point L408(lines 408 423) no Hoare annotation was computed. [2021-12-17 03:29:14,003 INFO L858 garLoopResultBuilder]: For program point L342(lines 342 345) no Hoare annotation was computed. [2021-12-17 03:29:14,003 INFO L858 garLoopResultBuilder]: For program point L342-2(lines 342 345) no Hoare annotation was computed. [2021-12-17 03:29:14,003 INFO L858 garLoopResultBuilder]: For program point L144(lines 144 423) no Hoare annotation was computed. [2021-12-17 03:29:14,004 INFO L854 garLoopResultBuilder]: At program point L607(lines 39 608) the Hoare annotation is: (let ((.cse11 (<= 9 ~a28~0)) (.cse0 (= ~a17~0 8)) (.cse1 (= ~a21~0 1)) (.cse5 (<= ~a25~0 0)) (.cse8 (= 0 ~a11~0)) (.cse9 (<= ~a19~0 0)) (.cse3 (<= ~a28~0 10)) (.cse4 (<= 10 ~a28~0)) (.cse2 (= ~a19~0 1)) (.cse6 (<= ~a28~0 7)) (.cse10 (= ~a11~0 1)) (.cse7 (= ~a25~0 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse6 .cse7 .cse8 .cse9) (and .cse2 .cse3 .cse7 .cse8) (and .cse0 .cse1 .cse2 .cse10 .cse3 .cse5 .cse11) (and .cse10 (or (and .cse6 .cse7 .cse9) (and .cse6 .cse9 .cse5))) (and .cse0 .cse1 .cse2 .cse7 .cse8) (and .cse8 .cse9 .cse5) (and .cse0 .cse1 .cse2 .cse6 .cse7) (and .cse0 .cse1 .cse2 .cse3 .cse8 .cse5 .cse11) (<= ~a17~0 7) (and .cse0 .cse1 (= ~a28~0 9) .cse10 .cse2 .cse7) (and .cse0 .cse1 .cse2 .cse6 .cse8 .cse5) (and .cse7 .cse3 .cse4 .cse8 .cse9) (and .cse2 .cse7 .cse3 .cse4) (and .cse2 .cse6 .cse10 .cse7))) [2021-12-17 03:29:14,004 INFO L858 garLoopResultBuilder]: For program point L541-1(lines 39 608) no Hoare annotation was computed. [2021-12-17 03:29:14,004 INFO L858 garLoopResultBuilder]: For program point L475-1(lines 39 608) no Hoare annotation was computed. [2021-12-17 03:29:14,004 INFO L858 garLoopResultBuilder]: For program point L79(lines 79 423) no Hoare annotation was computed. [2021-12-17 03:29:14,004 INFO L858 garLoopResultBuilder]: For program point L542(line 542) no Hoare annotation was computed. [2021-12-17 03:29:14,004 INFO L858 garLoopResultBuilder]: For program point L476(line 476) no Hoare annotation was computed. [2021-12-17 03:29:14,005 INFO L858 garLoopResultBuilder]: For program point L212(lines 212 423) no Hoare annotation was computed. [2021-12-17 03:29:14,005 INFO L858 garLoopResultBuilder]: For program point L213(lines 213 220) no Hoare annotation was computed. [2021-12-17 03:29:14,005 INFO L858 garLoopResultBuilder]: For program point L213-2(lines 213 220) no Hoare annotation was computed. [2021-12-17 03:29:14,005 INFO L861 garLoopResultBuilder]: At program point L610(lines 610 627) the Hoare annotation is: true [2021-12-17 03:29:14,005 INFO L858 garLoopResultBuilder]: For program point L544-1(lines 39 608) no Hoare annotation was computed. [2021-12-17 03:29:14,005 INFO L858 garLoopResultBuilder]: For program point L478-1(lines 39 608) no Hoare annotation was computed. [2021-12-17 03:29:14,005 INFO L858 garLoopResultBuilder]: For program point L412(lines 412 423) no Hoare annotation was computed. [2021-12-17 03:29:14,005 INFO L858 garLoopResultBuilder]: For program point L545(line 545) no Hoare annotation was computed. [2021-12-17 03:29:14,005 INFO L858 garLoopResultBuilder]: For program point L479(line 479) no Hoare annotation was computed. [2021-12-17 03:29:14,005 INFO L858 garLoopResultBuilder]: For program point L347(lines 347 423) no Hoare annotation was computed. [2021-12-17 03:29:14,006 INFO L858 garLoopResultBuilder]: For program point L149(lines 149 423) no Hoare annotation was computed. [2021-12-17 03:29:14,006 INFO L858 garLoopResultBuilder]: For program point L414(lines 414 423) no Hoare annotation was computed. [2021-12-17 03:29:14,006 INFO L858 garLoopResultBuilder]: For program point L348(lines 348 357) no Hoare annotation was computed. [2021-12-17 03:29:14,006 INFO L858 garLoopResultBuilder]: For program point L348-2(lines 348 357) no Hoare annotation was computed. [2021-12-17 03:29:14,006 INFO L858 garLoopResultBuilder]: For program point L84(lines 84 423) no Hoare annotation was computed. [2021-12-17 03:29:14,007 INFO L858 garLoopResultBuilder]: For program point L547-1(lines 39 608) no Hoare annotation was computed. [2021-12-17 03:29:14,007 INFO L858 garLoopResultBuilder]: For program point L481-1(lines 39 608) no Hoare annotation was computed. [2021-12-17 03:29:14,007 INFO L858 garLoopResultBuilder]: For program point L85(lines 85 90) no Hoare annotation was computed. [2021-12-17 03:29:14,007 INFO L858 garLoopResultBuilder]: For program point L85-2(lines 85 90) no Hoare annotation was computed. [2021-12-17 03:29:14,007 INFO L858 garLoopResultBuilder]: For program point L548(line 548) no Hoare annotation was computed. [2021-12-17 03:29:14,007 INFO L858 garLoopResultBuilder]: For program point L482(line 482) no Hoare annotation was computed. [2021-12-17 03:29:14,007 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-17 03:29:14,007 INFO L858 garLoopResultBuilder]: For program point L417(lines 417 423) no Hoare annotation was computed. [2021-12-17 03:29:14,007 INFO L858 garLoopResultBuilder]: For program point L153(lines 153 423) no Hoare annotation was computed. [2021-12-17 03:29:14,008 INFO L854 garLoopResultBuilder]: At program point L616-2(lines 616 626) the Hoare annotation is: (let ((.cse11 (<= 9 ~a28~0)) (.cse0 (= ~a17~0 8)) (.cse1 (= ~a21~0 1)) (.cse5 (<= ~a25~0 0)) (.cse8 (= 0 ~a11~0)) (.cse9 (<= ~a19~0 0)) (.cse3 (<= ~a28~0 10)) (.cse4 (<= 10 ~a28~0)) (.cse2 (= ~a19~0 1)) (.cse6 (<= ~a28~0 7)) (.cse10 (= ~a11~0 1)) (.cse7 (= ~a25~0 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse6 .cse7 .cse8 .cse9) (and .cse2 .cse3 .cse7 .cse8) (and .cse0 .cse1 .cse2 .cse10 .cse3 .cse5 .cse11) (and .cse10 (or (and .cse6 .cse7 .cse9) (and .cse6 .cse9 .cse5))) (and .cse0 .cse1 .cse2 .cse7 .cse8) (and .cse8 .cse9 .cse5) (and .cse0 .cse1 .cse2 .cse6 .cse7) (and .cse0 .cse1 .cse2 .cse3 .cse8 .cse5 .cse11) (<= ~a17~0 7) (and .cse0 .cse1 (= ~a28~0 9) .cse10 .cse2 .cse7) (and .cse0 .cse1 .cse2 .cse6 .cse8 .cse5) (and .cse7 .cse3 .cse4 .cse8 .cse9) (and .cse2 .cse7 .cse3 .cse4) (and .cse2 .cse6 .cse10 .cse7))) [2021-12-17 03:29:14,008 INFO L858 garLoopResultBuilder]: For program point L550-1(lines 39 608) no Hoare annotation was computed. [2021-12-17 03:29:14,008 INFO L858 garLoopResultBuilder]: For program point L484-1(lines 39 608) no Hoare annotation was computed. [2021-12-17 03:29:14,008 INFO L858 garLoopResultBuilder]: For program point L286(lines 286 423) no Hoare annotation was computed. [2021-12-17 03:29:14,008 INFO L858 garLoopResultBuilder]: For program point L551(line 551) no Hoare annotation was computed. [2021-12-17 03:29:14,008 INFO L858 garLoopResultBuilder]: For program point L485(line 485) no Hoare annotation was computed. [2021-12-17 03:29:14,008 INFO L858 garLoopResultBuilder]: For program point L419(lines 419 423) no Hoare annotation was computed. [2021-12-17 03:29:14,009 INFO L858 garLoopResultBuilder]: For program point L222(lines 222 423) no Hoare annotation was computed. [2021-12-17 03:29:14,009 INFO L858 garLoopResultBuilder]: For program point L553-1(lines 39 608) no Hoare annotation was computed. [2021-12-17 03:29:14,009 INFO L858 garLoopResultBuilder]: For program point L487-1(lines 39 608) no Hoare annotation was computed. [2021-12-17 03:29:14,009 INFO L858 garLoopResultBuilder]: For program point L554(line 554) no Hoare annotation was computed. [2021-12-17 03:29:14,009 INFO L858 garLoopResultBuilder]: For program point L488(line 488) no Hoare annotation was computed. [2021-12-17 03:29:14,009 INFO L858 garLoopResultBuilder]: For program point L290(lines 290 423) no Hoare annotation was computed. [2021-12-17 03:29:14,009 INFO L858 garLoopResultBuilder]: For program point L158(lines 158 423) no Hoare annotation was computed. [2021-12-17 03:29:14,009 INFO L858 garLoopResultBuilder]: For program point L92(lines 92 423) no Hoare annotation was computed. [2021-12-17 03:29:14,009 INFO L858 garLoopResultBuilder]: For program point L621(line 621) no Hoare annotation was computed. [2021-12-17 03:29:14,009 INFO L858 garLoopResultBuilder]: For program point L225(lines 225 423) no Hoare annotation was computed. [2021-12-17 03:29:14,010 INFO L858 garLoopResultBuilder]: For program point L93(lines 93 99) no Hoare annotation was computed. [2021-12-17 03:29:14,010 INFO L858 garLoopResultBuilder]: For program point L93-2(lines 93 99) no Hoare annotation was computed. [2021-12-17 03:29:14,010 INFO L858 garLoopResultBuilder]: For program point L556-1(lines 39 608) no Hoare annotation was computed. [2021-12-17 03:29:14,010 INFO L858 garLoopResultBuilder]: For program point L490-1(lines 39 608) no Hoare annotation was computed. [2021-12-17 03:29:14,010 INFO L858 garLoopResultBuilder]: For program point L424(lines 424 426) no Hoare annotation was computed. [2021-12-17 03:29:14,010 INFO L858 garLoopResultBuilder]: For program point L424-2(lines 39 608) no Hoare annotation was computed. [2021-12-17 03:29:14,010 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-17 03:29:14,010 INFO L858 garLoopResultBuilder]: For program point L557(line 557) no Hoare annotation was computed. [2021-12-17 03:29:14,010 INFO L858 garLoopResultBuilder]: For program point L491(line 491) no Hoare annotation was computed. [2021-12-17 03:29:14,011 INFO L858 garLoopResultBuilder]: For program point L425(line 425) no Hoare annotation was computed. [2021-12-17 03:29:14,011 INFO L858 garLoopResultBuilder]: For program point L359(lines 359 423) no Hoare annotation was computed. [2021-12-17 03:29:14,011 INFO L858 garLoopResultBuilder]: For program point L293(lines 293 423) no Hoare annotation was computed. [2021-12-17 03:29:14,011 INFO L858 garLoopResultBuilder]: For program point L228(lines 228 423) no Hoare annotation was computed. [2021-12-17 03:29:14,011 INFO L858 garLoopResultBuilder]: For program point L559-1(lines 39 608) no Hoare annotation was computed. [2021-12-17 03:29:14,011 INFO L858 garLoopResultBuilder]: For program point L493-1(lines 39 608) no Hoare annotation was computed. [2021-12-17 03:29:14,011 INFO L858 garLoopResultBuilder]: For program point L427-1(lines 39 608) no Hoare annotation was computed. [2021-12-17 03:29:14,011 INFO L858 garLoopResultBuilder]: For program point L560(line 560) no Hoare annotation was computed. [2021-12-17 03:29:14,011 INFO L858 garLoopResultBuilder]: For program point L494(line 494) no Hoare annotation was computed. [2021-12-17 03:29:14,011 INFO L858 garLoopResultBuilder]: For program point L428(line 428) no Hoare annotation was computed. [2021-12-17 03:29:14,012 INFO L858 garLoopResultBuilder]: For program point L296(lines 296 423) no Hoare annotation was computed. [2021-12-17 03:29:14,012 INFO L858 garLoopResultBuilder]: For program point L164(lines 164 423) no Hoare annotation was computed. [2021-12-17 03:29:14,012 INFO L858 garLoopResultBuilder]: For program point L562-1(lines 39 608) no Hoare annotation was computed. [2021-12-17 03:29:14,012 INFO L858 garLoopResultBuilder]: For program point L496-1(lines 39 608) no Hoare annotation was computed. [2021-12-17 03:29:14,012 INFO L858 garLoopResultBuilder]: For program point L430-1(lines 39 608) no Hoare annotation was computed. [2021-12-17 03:29:14,012 INFO L858 garLoopResultBuilder]: For program point L364(lines 364 423) no Hoare annotation was computed. [2021-12-17 03:29:14,012 INFO L858 garLoopResultBuilder]: For program point L563(line 563) no Hoare annotation was computed. [2021-12-17 03:29:14,012 INFO L858 garLoopResultBuilder]: For program point L497(line 497) no Hoare annotation was computed. [2021-12-17 03:29:14,012 INFO L858 garLoopResultBuilder]: For program point L431(line 431) no Hoare annotation was computed. [2021-12-17 03:29:14,013 INFO L858 garLoopResultBuilder]: For program point L233(lines 233 423) no Hoare annotation was computed. [2021-12-17 03:29:14,013 INFO L858 garLoopResultBuilder]: For program point L101(lines 101 423) no Hoare annotation was computed. [2021-12-17 03:29:14,015 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 03:29:14,017 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-17 03:29:14,048 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.12 03:29:14 BoogieIcfgContainer [2021-12-17 03:29:14,048 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-17 03:29:14,048 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-17 03:29:14,048 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-17 03:29:14,049 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-17 03:29:14,049 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 03:29:05" (3/4) ... [2021-12-17 03:29:14,051 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-17 03:29:14,070 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-12-17 03:29:14,071 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-12-17 03:29:14,072 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-17 03:29:14,072 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-17 03:29:14,145 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-17 03:29:14,145 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-17 03:29:14,146 INFO L158 Benchmark]: Toolchain (without parser) took 9884.27ms. Allocated memory was 109.1MB in the beginning and 234.9MB in the end (delta: 125.8MB). Free memory was 79.4MB in the beginning and 85.1MB in the end (delta: -5.6MB). Peak memory consumption was 120.5MB. Max. memory is 16.1GB. [2021-12-17 03:29:14,146 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 109.1MB. Free memory was 65.9MB in the beginning and 65.8MB in the end (delta: 47.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-17 03:29:14,146 INFO L158 Benchmark]: CACSL2BoogieTranslator took 399.38ms. Allocated memory was 109.1MB in the beginning and 142.6MB in the end (delta: 33.6MB). Free memory was 79.0MB in the beginning and 102.3MB in the end (delta: -23.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-17 03:29:14,147 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.72ms. Allocated memory is still 142.6MB. Free memory was 102.3MB in the beginning and 96.9MB in the end (delta: 5.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-17 03:29:14,147 INFO L158 Benchmark]: Boogie Preprocessor took 54.53ms. Allocated memory is still 142.6MB. Free memory was 96.9MB in the beginning and 92.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-17 03:29:14,148 INFO L158 Benchmark]: RCFGBuilder took 802.71ms. Allocated memory is still 142.6MB. Free memory was 92.7MB in the beginning and 103.0MB in the end (delta: -10.3MB). Peak memory consumption was 46.9MB. Max. memory is 16.1GB. [2021-12-17 03:29:14,148 INFO L158 Benchmark]: TraceAbstraction took 8455.05ms. Allocated memory was 142.6MB in the beginning and 234.9MB in the end (delta: 92.3MB). Free memory was 102.3MB in the beginning and 99.8MB in the end (delta: 2.6MB). Peak memory consumption was 97.2MB. Max. memory is 16.1GB. [2021-12-17 03:29:14,148 INFO L158 Benchmark]: Witness Printer took 97.15ms. Allocated memory is still 234.9MB. Free memory was 99.8MB in the beginning and 85.1MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-17 03:29:14,150 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 109.1MB. Free memory was 65.9MB in the beginning and 65.8MB in the end (delta: 47.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 399.38ms. Allocated memory was 109.1MB in the beginning and 142.6MB in the end (delta: 33.6MB). Free memory was 79.0MB in the beginning and 102.3MB in the end (delta: -23.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.72ms. Allocated memory is still 142.6MB. Free memory was 102.3MB in the beginning and 96.9MB in the end (delta: 5.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.53ms. Allocated memory is still 142.6MB. Free memory was 96.9MB in the beginning and 92.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 802.71ms. Allocated memory is still 142.6MB. Free memory was 92.7MB in the beginning and 103.0MB in the end (delta: -10.3MB). Peak memory consumption was 46.9MB. Max. memory is 16.1GB. * TraceAbstraction took 8455.05ms. Allocated memory was 142.6MB in the beginning and 234.9MB in the end (delta: 92.3MB). Free memory was 102.3MB in the beginning and 99.8MB in the end (delta: 2.6MB). Peak memory consumption was 97.2MB. Max. memory is 16.1GB. * Witness Printer took 97.15ms. Allocated memory is still 234.9MB. Free memory was 99.8MB in the beginning and 85.1MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. 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: 503]: 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, 227 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 8.4s, OverallIterations: 13, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 4.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1745 SdHoareTripleChecker+Valid, 3.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1745 mSDsluCounter, 2128 SdHoareTripleChecker+Invalid, 3.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 224 mSDsCounter, 771 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4848 IncrementalHoareTripleChecker+Invalid, 5619 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 771 mSolverCounterUnsat, 1904 mSDtfsCounter, 4848 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 719 GetRequests, 699 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3394occurred in iteration=11, InterpolantAutomatonStates: 40, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 13 MinimizatonAttempts, 443 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 59 NumberOfFragments, 481 HoareAnnotationTreeSize, 3 FomulaSimplifications, 176 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 374 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 2926 NumberOfCodeBlocks, 2926 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 2910 ConstructedInterpolants, 0 QuantifiedInterpolants, 5911 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1249 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 16 InterpolantComputations, 13 PerfectInterpolantSequences, 2114/2162 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: 616]: Loop Invariant Derived loop invariant: ((((((((((((((((((a17 == 8 && a21 == 1) && a19 == 1) && a28 <= 10) && 10 <= a28) && a25 <= 0) || (((a28 <= 7 && a25 == 1) && 0 == a11) && a19 <= 0)) || (((a19 == 1 && a28 <= 10) && a25 == 1) && 0 == a11)) || ((((((a17 == 8 && a21 == 1) && a19 == 1) && a11 == 1) && a28 <= 10) && a25 <= 0) && 9 <= a28)) || (a11 == 1 && (((a28 <= 7 && a25 == 1) && a19 <= 0) || ((a28 <= 7 && a19 <= 0) && a25 <= 0)))) || ((((a17 == 8 && a21 == 1) && a19 == 1) && a25 == 1) && 0 == a11)) || ((0 == a11 && a19 <= 0) && a25 <= 0)) || ((((a17 == 8 && a21 == 1) && a19 == 1) && a28 <= 7) && a25 == 1)) || ((((((a17 == 8 && a21 == 1) && a19 == 1) && a28 <= 10) && 0 == a11) && a25 <= 0) && 9 <= a28)) || a17 <= 7) || (((((a17 == 8 && a21 == 1) && a28 == 9) && a11 == 1) && a19 == 1) && a25 == 1)) || (((((a17 == 8 && a21 == 1) && a19 == 1) && a28 <= 7) && 0 == a11) && a25 <= 0)) || ((((a25 == 1 && a28 <= 10) && 10 <= a28) && 0 == a11) && a19 <= 0)) || (((a19 == 1 && a25 == 1) && a28 <= 10) && 10 <= a28)) || (((a19 == 1 && a28 <= 7) && a11 == 1) && a25 == 1) - InvariantResult [Line: 610]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: ((((((((((((((((((a17 == 8 && a21 == 1) && a19 == 1) && a28 <= 10) && 10 <= a28) && a25 <= 0) || (((a28 <= 7 && a25 == 1) && 0 == a11) && a19 <= 0)) || (((a19 == 1 && a28 <= 10) && a25 == 1) && 0 == a11)) || ((((((a17 == 8 && a21 == 1) && a19 == 1) && a11 == 1) && a28 <= 10) && a25 <= 0) && 9 <= a28)) || (a11 == 1 && (((a28 <= 7 && a25 == 1) && a19 <= 0) || ((a28 <= 7 && a19 <= 0) && a25 <= 0)))) || ((((a17 == 8 && a21 == 1) && a19 == 1) && a25 == 1) && 0 == a11)) || ((0 == a11 && a19 <= 0) && a25 <= 0)) || ((((a17 == 8 && a21 == 1) && a19 == 1) && a28 <= 7) && a25 == 1)) || ((((((a17 == 8 && a21 == 1) && a19 == 1) && a28 <= 10) && 0 == a11) && a25 <= 0) && 9 <= a28)) || a17 <= 7) || (((((a17 == 8 && a21 == 1) && a28 == 9) && a11 == 1) && a19 == 1) && a25 == 1)) || (((((a17 == 8 && a21 == 1) && a19 == 1) && a28 <= 7) && 0 == a11) && a25 <= 0)) || ((((a25 == 1 && a28 <= 10) && 10 <= a28) && 0 == a11) && a19 <= 0)) || (((a19 == 1 && a25 == 1) && a28 <= 10) && 10 <= a28)) || (((a19 == 1 && a28 <= 7) && a11 == 1) && a25 == 1) RESULT: Ultimate proved your program to be correct! [2021-12-17 03:29:14,204 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