./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem14_label00.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/Problem14_label00.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 1133d4e628bca1624f90bda56a6327f24f5efa9815c748be39cd9f3813ed8b8e --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-15 22:48:32,448 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 22:48:32,449 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 22:48:32,486 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 22:48:32,486 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 22:48:32,487 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 22:48:32,488 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 22:48:32,489 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 22:48:32,490 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 22:48:32,492 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 22:48:32,492 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 22:48:32,494 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 22:48:32,494 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 22:48:32,498 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 22:48:32,500 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 22:48:32,501 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 22:48:32,503 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 22:48:32,504 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 22:48:32,505 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 22:48:32,509 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 22:48:32,516 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 22:48:32,517 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 22:48:32,517 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 22:48:32,518 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 22:48:32,519 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 22:48:32,520 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 22:48:32,520 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 22:48:32,521 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 22:48:32,522 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 22:48:32,523 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 22:48:32,523 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 22:48:32,524 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 22:48:32,524 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 22:48:32,525 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 22:48:32,526 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 22:48:32,526 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 22:48:32,527 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 22:48:32,527 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 22:48:32,528 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 22:48:32,528 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 22:48:32,529 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 22:48:32,531 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 22:48:32,552 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 22:48:32,552 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 22:48:32,552 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 22:48:32,552 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 22:48:32,553 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 22:48:32,553 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 22:48:32,554 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 22:48:32,554 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 22:48:32,554 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 22:48:32,554 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 22:48:32,554 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 22:48:32,554 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 22:48:32,554 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 22:48:32,555 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 22:48:32,555 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 22:48:32,555 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 22:48:32,555 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 22:48:32,555 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 22:48:32,555 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 22:48:32,556 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 22:48:32,556 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 22:48:32,556 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 22:48:32,556 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 22:48:32,556 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 22:48:32,556 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 22:48:32,556 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 22:48:32,557 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 22:48:32,557 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 22:48:32,557 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 22:48:32,557 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 22:48:32,557 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 22:48:32,557 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 22:48:32,558 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 22:48:32,558 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 22:48:32,558 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1133d4e628bca1624f90bda56a6327f24f5efa9815c748be39cd9f3813ed8b8e [2021-12-15 22:48:32,744 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 22:48:32,766 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 22:48:32,769 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 22:48:32,770 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 22:48:32,770 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 22:48:32,771 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem14_label00.c [2021-12-15 22:48:32,811 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc7098c88/f9d2bcddbc6445d4a03ce43898f3e433/FLAGcf4768f24 [2021-12-15 22:48:33,267 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 22:48:33,267 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem14_label00.c [2021-12-15 22:48:33,284 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc7098c88/f9d2bcddbc6445d4a03ce43898f3e433/FLAGcf4768f24 [2021-12-15 22:48:33,295 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc7098c88/f9d2bcddbc6445d4a03ce43898f3e433 [2021-12-15 22:48:33,296 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 22:48:33,298 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 22:48:33,299 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 22:48:33,299 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 22:48:33,301 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 22:48:33,301 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:48:33" (1/1) ... [2021-12-15 22:48:33,302 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1612fb43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:48:33, skipping insertion in model container [2021-12-15 22:48:33,302 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:48:33" (1/1) ... [2021-12-15 22:48:33,306 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 22:48:33,349 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 22:48:33,494 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem14_label00.c[5469,5482] [2021-12-15 22:48:33,604 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 22:48:33,609 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 22:48:33,632 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/Problem14_label00.c[5469,5482] [2021-12-15 22:48:33,687 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 22:48:33,699 INFO L208 MainTranslator]: Completed translation [2021-12-15 22:48:33,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:48:33 WrapperNode [2021-12-15 22:48:33,700 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 22:48:33,701 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 22:48:33,701 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 22:48:33,701 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 22:48:33,708 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:48:33" (1/1) ... [2021-12-15 22:48:33,724 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:48:33" (1/1) ... [2021-12-15 22:48:33,780 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 858 [2021-12-15 22:48:33,781 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 22:48:33,782 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 22:48:33,782 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 22:48:33,782 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 22:48:33,787 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:48:33" (1/1) ... [2021-12-15 22:48:33,788 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:48:33" (1/1) ... [2021-12-15 22:48:33,795 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:48:33" (1/1) ... [2021-12-15 22:48:33,796 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:48:33" (1/1) ... [2021-12-15 22:48:33,826 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:48:33" (1/1) ... [2021-12-15 22:48:33,843 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:48:33" (1/1) ... [2021-12-15 22:48:33,847 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:48:33" (1/1) ... [2021-12-15 22:48:33,856 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 22:48:33,858 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 22:48:33,858 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 22:48:33,859 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 22:48:33,860 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:48:33" (1/1) ... [2021-12-15 22:48:33,870 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 22:48:33,880 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 22:48:33,890 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) [2021-12-15 22:48:33,921 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 [2021-12-15 22:48:33,928 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 22:48:33,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 22:48:33,929 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 22:48:33,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 22:48:33,975 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 22:48:33,976 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 22:48:34,835 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 22:48:34,844 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 22:48:34,844 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-15 22:48:34,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:48:34 BoogieIcfgContainer [2021-12-15 22:48:34,846 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 22:48:34,847 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 22:48:34,847 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 22:48:34,849 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 22:48:34,850 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 10:48:33" (1/3) ... [2021-12-15 22:48:34,850 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31c383c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:48:34, skipping insertion in model container [2021-12-15 22:48:34,851 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:48:33" (2/3) ... [2021-12-15 22:48:34,851 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31c383c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:48:34, skipping insertion in model container [2021-12-15 22:48:34,851 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:48:34" (3/3) ... [2021-12-15 22:48:34,852 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label00.c [2021-12-15 22:48:34,858 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 22:48:34,858 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 22:48:34,889 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 22:48:34,895 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 [2021-12-15 22:48:34,895 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 22:48:34,910 INFO L276 IsEmpty]: Start isEmpty. Operand has 245 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:48:34,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-12-15 22:48:34,924 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:48:34,924 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] [2021-12-15 22:48:34,925 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:48:34,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:48:34,930 INFO L85 PathProgramCache]: Analyzing trace with hash -92557335, now seen corresponding path program 1 times [2021-12-15 22:48:34,938 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:48:34,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132112102] [2021-12-15 22:48:34,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:48:34,939 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:48:35,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:48:35,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 22:48:35,125 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:48:35,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132112102] [2021-12-15 22:48:35,126 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132112102] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:48:35,126 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:48:35,127 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 22:48:35,128 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830392658] [2021-12-15 22:48:35,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:48:35,132 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:48:35,133 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:48:35,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:48:35,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:48:35,161 INFO L87 Difference]: Start difference. First operand has 245 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 2 states have internal predecessors, (53), 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) [2021-12-15 22:48:35,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:48:35,802 INFO L93 Difference]: Finished difference Result 669 states and 1200 transitions. [2021-12-15 22:48:35,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:48:35,804 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 2 states have internal predecessors, (53), 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 53 [2021-12-15 22:48:35,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:48:35,814 INFO L225 Difference]: With dead ends: 669 [2021-12-15 22:48:35,817 INFO L226 Difference]: Without dead ends: 360 [2021-12-15 22:48:35,825 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 [2021-12-15 22:48:35,829 INFO L933 BasicCegarLoop]: 70 mSDtfsCounter, 153 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 615 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 615 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-15 22:48:35,831 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 77 Invalid, 703 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 615 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-15 22:48:35,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2021-12-15 22:48:35,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 360. [2021-12-15 22:48:35,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 359 states have (on average 1.6378830083565459) internal successors, (588), 359 states have internal predecessors, (588), 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) [2021-12-15 22:48:35,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 588 transitions. [2021-12-15 22:48:35,872 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 588 transitions. Word has length 53 [2021-12-15 22:48:35,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:48:35,873 INFO L470 AbstractCegarLoop]: Abstraction has 360 states and 588 transitions. [2021-12-15 22:48:35,873 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 2 states have internal predecessors, (53), 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) [2021-12-15 22:48:35,873 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 588 transitions. [2021-12-15 22:48:35,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-12-15 22:48:35,876 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:48:35,876 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-12-15 22:48:35,876 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-15 22:48:35,876 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:48:35,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:48:35,877 INFO L85 PathProgramCache]: Analyzing trace with hash 665233748, now seen corresponding path program 1 times [2021-12-15 22:48:35,877 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:48:35,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864699614] [2021-12-15 22:48:35,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:48:35,878 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:48:35,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:48:35,972 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 22:48:35,973 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:48:35,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864699614] [2021-12-15 22:48:35,973 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864699614] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:48:35,973 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:48:35,974 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 22:48:35,974 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325496913] [2021-12-15 22:48:35,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:48:35,975 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:48:35,975 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:48:35,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:48:35,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:48:35,976 INFO L87 Difference]: Start difference. First operand 360 states and 588 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 2 states have internal predecessors, (118), 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) [2021-12-15 22:48:36,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:48:36,525 INFO L93 Difference]: Finished difference Result 1074 states and 1759 transitions. [2021-12-15 22:48:36,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:48:36,532 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 2 states have internal predecessors, (118), 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 118 [2021-12-15 22:48:36,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:48:36,535 INFO L225 Difference]: With dead ends: 1074 [2021-12-15 22:48:36,535 INFO L226 Difference]: Without dead ends: 716 [2021-12-15 22:48:36,536 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 [2021-12-15 22:48:36,537 INFO L933 BasicCegarLoop]: 48 mSDtfsCounter, 117 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 169 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 169 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-15 22:48:36,537 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 51 Invalid, 628 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [169 Valid, 459 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-15 22:48:36,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2021-12-15 22:48:36,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 716. [2021-12-15 22:48:36,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 715 states have (on average 1.523076923076923) internal successors, (1089), 715 states have internal predecessors, (1089), 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) [2021-12-15 22:48:36,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 1089 transitions. [2021-12-15 22:48:36,564 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 1089 transitions. Word has length 118 [2021-12-15 22:48:36,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:48:36,564 INFO L470 AbstractCegarLoop]: Abstraction has 716 states and 1089 transitions. [2021-12-15 22:48:36,564 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 2 states have internal predecessors, (118), 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) [2021-12-15 22:48:36,565 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 1089 transitions. [2021-12-15 22:48:36,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-12-15 22:48:36,569 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:48:36,569 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-12-15 22:48:36,569 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-15 22:48:36,570 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:48:36,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:48:36,571 INFO L85 PathProgramCache]: Analyzing trace with hash 802572153, now seen corresponding path program 1 times [2021-12-15 22:48:36,572 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:48:36,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548441234] [2021-12-15 22:48:36,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:48:36,572 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:48:36,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:48:36,638 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 22:48:36,638 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:48:36,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548441234] [2021-12-15 22:48:36,638 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548441234] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:48:36,638 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:48:36,638 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 22:48:36,638 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158074426] [2021-12-15 22:48:36,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:48:36,639 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:48:36,639 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:48:36,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:48:36,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:48:36,640 INFO L87 Difference]: Start difference. First operand 716 states and 1089 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 2 states have internal predecessors, (119), 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) [2021-12-15 22:48:37,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:48:37,129 INFO L93 Difference]: Finished difference Result 1786 states and 2718 transitions. [2021-12-15 22:48:37,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:48:37,130 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 2 states have internal predecessors, (119), 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 119 [2021-12-15 22:48:37,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:48:37,134 INFO L225 Difference]: With dead ends: 1786 [2021-12-15 22:48:37,134 INFO L226 Difference]: Without dead ends: 1072 [2021-12-15 22:48:37,135 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 [2021-12-15 22:48:37,136 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 125 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 201 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 201 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-15 22:48:37,136 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 57 Invalid, 632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [201 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-15 22:48:37,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2021-12-15 22:48:37,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 1072. [2021-12-15 22:48:37,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1072 states, 1071 states have (on average 1.377217553688142) internal successors, (1475), 1071 states have internal predecessors, (1475), 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) [2021-12-15 22:48:37,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1475 transitions. [2021-12-15 22:48:37,157 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1475 transitions. Word has length 119 [2021-12-15 22:48:37,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:48:37,158 INFO L470 AbstractCegarLoop]: Abstraction has 1072 states and 1475 transitions. [2021-12-15 22:48:37,158 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 2 states have internal predecessors, (119), 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) [2021-12-15 22:48:37,158 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1475 transitions. [2021-12-15 22:48:37,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-12-15 22:48:37,161 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:48:37,161 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-12-15 22:48:37,162 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-15 22:48:37,162 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:48:37,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:48:37,163 INFO L85 PathProgramCache]: Analyzing trace with hash -282099970, now seen corresponding path program 1 times [2021-12-15 22:48:37,163 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:48:37,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269680229] [2021-12-15 22:48:37,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:48:37,164 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:48:37,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:48:37,227 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 22:48:37,227 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:48:37,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269680229] [2021-12-15 22:48:37,228 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269680229] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:48:37,228 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:48:37,228 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 22:48:37,228 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971133204] [2021-12-15 22:48:37,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:48:37,229 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:48:37,229 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:48:37,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:48:37,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:48:37,230 INFO L87 Difference]: Start difference. First operand 1072 states and 1475 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 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) [2021-12-15 22:48:37,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:48:37,694 INFO L93 Difference]: Finished difference Result 2856 states and 3879 transitions. [2021-12-15 22:48:37,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:48:37,695 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 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 121 [2021-12-15 22:48:37,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:48:37,700 INFO L225 Difference]: With dead ends: 2856 [2021-12-15 22:48:37,700 INFO L226 Difference]: Without dead ends: 1786 [2021-12-15 22:48:37,701 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 [2021-12-15 22:48:37,701 INFO L933 BasicCegarLoop]: 102 mSDtfsCounter, 125 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-15 22:48:37,702 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 106 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 449 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-15 22:48:37,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1786 states. [2021-12-15 22:48:37,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1786 to 1784. [2021-12-15 22:48:37,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1784 states, 1783 states have (on average 1.274817722938867) internal successors, (2273), 1783 states have internal predecessors, (2273), 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) [2021-12-15 22:48:37,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1784 states to 1784 states and 2273 transitions. [2021-12-15 22:48:37,726 INFO L78 Accepts]: Start accepts. Automaton has 1784 states and 2273 transitions. Word has length 121 [2021-12-15 22:48:37,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:48:37,726 INFO L470 AbstractCegarLoop]: Abstraction has 1784 states and 2273 transitions. [2021-12-15 22:48:37,727 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 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) [2021-12-15 22:48:37,727 INFO L276 IsEmpty]: Start isEmpty. Operand 1784 states and 2273 transitions. [2021-12-15 22:48:37,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-12-15 22:48:37,728 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:48:37,728 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-12-15 22:48:37,728 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-15 22:48:37,728 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:48:37,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:48:37,729 INFO L85 PathProgramCache]: Analyzing trace with hash -1613197922, now seen corresponding path program 1 times [2021-12-15 22:48:37,729 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:48:37,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278256679] [2021-12-15 22:48:37,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:48:37,730 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:48:37,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:48:37,798 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 22:48:37,798 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:48:37,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278256679] [2021-12-15 22:48:37,799 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278256679] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:48:37,799 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:48:37,799 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 22:48:37,799 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719574590] [2021-12-15 22:48:37,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:48:37,801 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-15 22:48:37,802 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:48:37,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-15 22:48:37,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-15 22:48:37,803 INFO L87 Difference]: Start difference. First operand 1784 states and 2273 transitions. Second operand has 4 states, 4 states have (on average 30.5) internal successors, (122), 3 states have internal predecessors, (122), 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) [2021-12-15 22:48:38,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:48:38,555 INFO L93 Difference]: Finished difference Result 3568 states and 4551 transitions. [2021-12-15 22:48:38,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-15 22:48:38,556 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 3 states have internal predecessors, (122), 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 122 [2021-12-15 22:48:38,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:48:38,561 INFO L225 Difference]: With dead ends: 3568 [2021-12-15 22:48:38,561 INFO L226 Difference]: Without dead ends: 1964 [2021-12-15 22:48:38,563 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-15 22:48:38,564 INFO L933 BasicCegarLoop]: 111 mSDtfsCounter, 440 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 943 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 440 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 943 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-15 22:48:38,564 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [440 Valid, 123 Invalid, 971 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 943 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-15 22:48:38,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1964 states. [2021-12-15 22:48:38,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1964 to 1962. [2021-12-15 22:48:38,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1962 states, 1961 states have (on average 1.2437531871494136) internal successors, (2439), 1961 states have internal predecessors, (2439), 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) [2021-12-15 22:48:38,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1962 states to 1962 states and 2439 transitions. [2021-12-15 22:48:38,593 INFO L78 Accepts]: Start accepts. Automaton has 1962 states and 2439 transitions. Word has length 122 [2021-12-15 22:48:38,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:48:38,594 INFO L470 AbstractCegarLoop]: Abstraction has 1962 states and 2439 transitions. [2021-12-15 22:48:38,594 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 3 states have internal predecessors, (122), 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) [2021-12-15 22:48:38,594 INFO L276 IsEmpty]: Start isEmpty. Operand 1962 states and 2439 transitions. [2021-12-15 22:48:38,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-12-15 22:48:38,595 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:48:38,595 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-12-15 22:48:38,596 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-15 22:48:38,596 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:48:38,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:48:38,596 INFO L85 PathProgramCache]: Analyzing trace with hash -1253085156, now seen corresponding path program 1 times [2021-12-15 22:48:38,596 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:48:38,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314454444] [2021-12-15 22:48:38,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:48:38,597 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:48:38,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:48:38,668 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 22:48:38,669 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:48:38,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314454444] [2021-12-15 22:48:38,669 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314454444] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:48:38,669 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:48:38,669 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 22:48:38,669 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486942014] [2021-12-15 22:48:38,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:48:38,670 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-15 22:48:38,670 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:48:38,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-15 22:48:38,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-15 22:48:38,671 INFO L87 Difference]: Start difference. First operand 1962 states and 2439 transitions. Second operand has 4 states, 4 states have (on average 33.25) internal successors, (133), 3 states have internal predecessors, (133), 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) [2021-12-15 22:48:39,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:48:39,166 INFO L93 Difference]: Finished difference Result 4131 states and 5121 transitions. [2021-12-15 22:48:39,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-15 22:48:39,167 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 3 states have internal predecessors, (133), 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 133 [2021-12-15 22:48:39,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:48:39,172 INFO L225 Difference]: With dead ends: 4131 [2021-12-15 22:48:39,173 INFO L226 Difference]: Without dead ends: 2320 [2021-12-15 22:48:39,174 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 [2021-12-15 22:48:39,175 INFO L933 BasicCegarLoop]: 112 mSDtfsCounter, 114 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 649 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 649 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-15 22:48:39,175 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 121 Invalid, 754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 649 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-15 22:48:39,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2320 states. [2021-12-15 22:48:39,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2320 to 2318. [2021-12-15 22:48:39,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2318 states, 2317 states have (on average 1.1294777729823047) internal successors, (2617), 2317 states have internal predecessors, (2617), 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) [2021-12-15 22:48:39,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2318 states to 2318 states and 2617 transitions. [2021-12-15 22:48:39,204 INFO L78 Accepts]: Start accepts. Automaton has 2318 states and 2617 transitions. Word has length 133 [2021-12-15 22:48:39,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:48:39,205 INFO L470 AbstractCegarLoop]: Abstraction has 2318 states and 2617 transitions. [2021-12-15 22:48:39,205 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 3 states have internal predecessors, (133), 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) [2021-12-15 22:48:39,205 INFO L276 IsEmpty]: Start isEmpty. Operand 2318 states and 2617 transitions. [2021-12-15 22:48:39,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2021-12-15 22:48:39,208 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:48:39,208 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-12-15 22:48:39,208 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-15 22:48:39,208 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:48:39,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:48:39,209 INFO L85 PathProgramCache]: Analyzing trace with hash 997934499, now seen corresponding path program 1 times [2021-12-15 22:48:39,209 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:48:39,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52572686] [2021-12-15 22:48:39,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:48:39,209 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:48:39,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:48:39,332 INFO L134 CoverageAnalysis]: Checked inductivity of 393 backedges. 289 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2021-12-15 22:48:39,332 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:48:39,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52572686] [2021-12-15 22:48:39,332 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52572686] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:48:39,332 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:48:39,333 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 22:48:39,333 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299026285] [2021-12-15 22:48:39,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:48:39,333 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:48:39,333 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:48:39,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:48:39,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:48:39,334 INFO L87 Difference]: Start difference. First operand 2318 states and 2617 transitions. Second operand has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 states have internal predecessors, (230), 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) [2021-12-15 22:48:39,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:48:39,704 INFO L93 Difference]: Finished difference Result 4990 states and 5682 transitions. [2021-12-15 22:48:39,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:48:39,705 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 states have internal predecessors, (230), 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 333 [2021-12-15 22:48:39,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:48:39,712 INFO L225 Difference]: With dead ends: 4990 [2021-12-15 22:48:39,712 INFO L226 Difference]: Without dead ends: 2852 [2021-12-15 22:48:39,714 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 [2021-12-15 22:48:39,717 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 112 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-15 22:48:39,718 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 76 Invalid, 493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-15 22:48:39,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2852 states. [2021-12-15 22:48:39,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2852 to 2852. [2021-12-15 22:48:39,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2852 states, 2851 states have (on average 1.122763942476324) internal successors, (3201), 2851 states have internal predecessors, (3201), 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) [2021-12-15 22:48:39,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2852 states to 2852 states and 3201 transitions. [2021-12-15 22:48:39,756 INFO L78 Accepts]: Start accepts. Automaton has 2852 states and 3201 transitions. Word has length 333 [2021-12-15 22:48:39,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:48:39,757 INFO L470 AbstractCegarLoop]: Abstraction has 2852 states and 3201 transitions. [2021-12-15 22:48:39,757 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 states have internal predecessors, (230), 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) [2021-12-15 22:48:39,757 INFO L276 IsEmpty]: Start isEmpty. Operand 2852 states and 3201 transitions. [2021-12-15 22:48:39,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2021-12-15 22:48:39,760 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:48:39,760 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 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] [2021-12-15 22:48:39,760 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-15 22:48:39,760 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:48:39,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:48:39,763 INFO L85 PathProgramCache]: Analyzing trace with hash -1245580553, now seen corresponding path program 1 times [2021-12-15 22:48:39,763 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:48:39,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059402743] [2021-12-15 22:48:39,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:48:39,764 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:48:39,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:48:39,880 INFO L134 CoverageAnalysis]: Checked inductivity of 415 backedges. 152 proven. 0 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2021-12-15 22:48:39,881 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:48:39,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059402743] [2021-12-15 22:48:39,881 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059402743] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:48:39,881 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:48:39,881 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 22:48:39,881 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73025029] [2021-12-15 22:48:39,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:48:39,882 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-15 22:48:39,882 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:48:39,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-15 22:48:39,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-15 22:48:39,883 INFO L87 Difference]: Start difference. First operand 2852 states and 3201 transitions. Second operand has 4 states, 4 states have (on average 40.5) internal successors, (162), 3 states have internal predecessors, (162), 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) [2021-12-15 22:48:40,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:48:40,329 INFO L93 Difference]: Finished difference Result 5760 states and 6476 transitions. [2021-12-15 22:48:40,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-15 22:48:40,329 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 3 states have internal predecessors, (162), 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 344 [2021-12-15 22:48:40,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:48:40,336 INFO L225 Difference]: With dead ends: 5760 [2021-12-15 22:48:40,337 INFO L226 Difference]: Without dead ends: 3030 [2021-12-15 22:48:40,339 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 [2021-12-15 22:48:40,340 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 125 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 686 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 726 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-15 22:48:40,340 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 17 Invalid, 726 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 686 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-15 22:48:40,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3030 states. [2021-12-15 22:48:40,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3030 to 2852. [2021-12-15 22:48:40,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2852 states, 2851 states have (on average 1.0824272185198176) internal successors, (3086), 2851 states have internal predecessors, (3086), 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) [2021-12-15 22:48:40,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2852 states to 2852 states and 3086 transitions. [2021-12-15 22:48:40,377 INFO L78 Accepts]: Start accepts. Automaton has 2852 states and 3086 transitions. Word has length 344 [2021-12-15 22:48:40,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:48:40,378 INFO L470 AbstractCegarLoop]: Abstraction has 2852 states and 3086 transitions. [2021-12-15 22:48:40,378 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 3 states have internal predecessors, (162), 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) [2021-12-15 22:48:40,378 INFO L276 IsEmpty]: Start isEmpty. Operand 2852 states and 3086 transitions. [2021-12-15 22:48:40,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 440 [2021-12-15 22:48:40,382 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:48:40,382 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2021-12-15 22:48:40,383 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-15 22:48:40,383 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:48:40,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:48:40,383 INFO L85 PathProgramCache]: Analyzing trace with hash -46056977, now seen corresponding path program 2 times [2021-12-15 22:48:40,384 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:48:40,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759866494] [2021-12-15 22:48:40,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:48:40,384 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:48:40,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:48:40,520 INFO L134 CoverageAnalysis]: Checked inductivity of 723 backedges. 409 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-12-15 22:48:40,520 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:48:40,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759866494] [2021-12-15 22:48:40,520 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759866494] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:48:40,520 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:48:40,520 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 22:48:40,521 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158945649] [2021-12-15 22:48:40,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:48:40,521 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:48:40,521 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:48:40,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:48:40,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:48:40,522 INFO L87 Difference]: Start difference. First operand 2852 states and 3086 transitions. Second operand has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 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) [2021-12-15 22:48:40,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:48:40,883 INFO L93 Difference]: Finished difference Result 5880 states and 6428 transitions. [2021-12-15 22:48:40,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:48:40,884 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 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 439 [2021-12-15 22:48:40,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:48:40,891 INFO L225 Difference]: With dead ends: 5880 [2021-12-15 22:48:40,892 INFO L226 Difference]: Without dead ends: 3208 [2021-12-15 22:48:40,894 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 [2021-12-15 22:48:40,895 INFO L933 BasicCegarLoop]: 240 mSDtfsCounter, 110 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-15 22:48:40,895 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 245 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-15 22:48:40,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3208 states. [2021-12-15 22:48:40,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3208 to 2674. [2021-12-15 22:48:40,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2674 states, 2673 states have (on average 1.0826786382341937) internal successors, (2894), 2673 states have internal predecessors, (2894), 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) [2021-12-15 22:48:40,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2674 states to 2674 states and 2894 transitions. [2021-12-15 22:48:40,937 INFO L78 Accepts]: Start accepts. Automaton has 2674 states and 2894 transitions. Word has length 439 [2021-12-15 22:48:40,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:48:40,938 INFO L470 AbstractCegarLoop]: Abstraction has 2674 states and 2894 transitions. [2021-12-15 22:48:40,938 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 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) [2021-12-15 22:48:40,938 INFO L276 IsEmpty]: Start isEmpty. Operand 2674 states and 2894 transitions. [2021-12-15 22:48:40,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 447 [2021-12-15 22:48:40,944 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:48:40,944 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:48:40,944 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-15 22:48:40,945 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:48:40,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:48:40,945 INFO L85 PathProgramCache]: Analyzing trace with hash 697752886, now seen corresponding path program 1 times [2021-12-15 22:48:40,945 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:48:40,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013406404] [2021-12-15 22:48:40,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:48:40,946 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:48:40,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:48:41,060 INFO L134 CoverageAnalysis]: Checked inductivity of 723 backedges. 409 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-12-15 22:48:41,060 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:48:41,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013406404] [2021-12-15 22:48:41,061 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013406404] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:48:41,061 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:48:41,061 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 22:48:41,061 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579119121] [2021-12-15 22:48:41,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:48:41,061 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:48:41,062 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:48:41,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:48:41,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:48:41,062 INFO L87 Difference]: Start difference. First operand 2674 states and 2894 transitions. Second operand has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 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) [2021-12-15 22:48:41,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:48:41,423 INFO L93 Difference]: Finished difference Result 5880 states and 6441 transitions. [2021-12-15 22:48:41,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:48:41,424 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 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 446 [2021-12-15 22:48:41,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:48:41,432 INFO L225 Difference]: With dead ends: 5880 [2021-12-15 22:48:41,432 INFO L226 Difference]: Without dead ends: 3386 [2021-12-15 22:48:41,434 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 [2021-12-15 22:48:41,435 INFO L933 BasicCegarLoop]: 238 mSDtfsCounter, 111 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-15 22:48:41,435 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 243 Invalid, 470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-15 22:48:41,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3386 states. [2021-12-15 22:48:41,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3386 to 3208. [2021-12-15 22:48:41,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3208 states, 3207 states have (on average 1.0735890240099781) internal successors, (3443), 3207 states have internal predecessors, (3443), 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) [2021-12-15 22:48:41,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3208 states to 3208 states and 3443 transitions. [2021-12-15 22:48:41,472 INFO L78 Accepts]: Start accepts. Automaton has 3208 states and 3443 transitions. Word has length 446 [2021-12-15 22:48:41,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:48:41,473 INFO L470 AbstractCegarLoop]: Abstraction has 3208 states and 3443 transitions. [2021-12-15 22:48:41,473 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 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) [2021-12-15 22:48:41,473 INFO L276 IsEmpty]: Start isEmpty. Operand 3208 states and 3443 transitions. [2021-12-15 22:48:41,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 602 [2021-12-15 22:48:41,480 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:48:41,480 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2021-12-15 22:48:41,481 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-15 22:48:41,481 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:48:41,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:48:41,481 INFO L85 PathProgramCache]: Analyzing trace with hash 1186168474, now seen corresponding path program 1 times [2021-12-15 22:48:41,481 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:48:41,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185420816] [2021-12-15 22:48:41,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:48:41,482 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:48:41,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:48:41,643 INFO L134 CoverageAnalysis]: Checked inductivity of 1166 backedges. 529 proven. 0 refuted. 0 times theorem prover too weak. 637 trivial. 0 not checked. [2021-12-15 22:48:41,643 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:48:41,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185420816] [2021-12-15 22:48:41,645 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185420816] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:48:41,645 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:48:41,645 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 22:48:41,645 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278554932] [2021-12-15 22:48:41,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:48:41,646 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:48:41,646 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:48:41,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:48:41,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:48:41,647 INFO L87 Difference]: Start difference. First operand 3208 states and 3443 transitions. Second operand has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:48:42,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:48:42,026 INFO L93 Difference]: Finished difference Result 6948 states and 7535 transitions. [2021-12-15 22:48:42,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:48:42,027 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 601 [2021-12-15 22:48:42,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:48:42,035 INFO L225 Difference]: With dead ends: 6948 [2021-12-15 22:48:42,035 INFO L226 Difference]: Without dead ends: 3920 [2021-12-15 22:48:42,039 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 [2021-12-15 22:48:42,039 INFO L933 BasicCegarLoop]: 236 mSDtfsCounter, 110 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-15 22:48:42,040 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 241 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 435 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-15 22:48:42,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3920 states. [2021-12-15 22:48:42,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3920 to 3742. [2021-12-15 22:48:42,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3742 states, 3741 states have (on average 1.0716385993049986) internal successors, (4009), 3741 states have internal predecessors, (4009), 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) [2021-12-15 22:48:42,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3742 states to 3742 states and 4009 transitions. [2021-12-15 22:48:42,099 INFO L78 Accepts]: Start accepts. Automaton has 3742 states and 4009 transitions. Word has length 601 [2021-12-15 22:48:42,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:48:42,100 INFO L470 AbstractCegarLoop]: Abstraction has 3742 states and 4009 transitions. [2021-12-15 22:48:42,100 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:48:42,100 INFO L276 IsEmpty]: Start isEmpty. Operand 3742 states and 4009 transitions. [2021-12-15 22:48:42,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 620 [2021-12-15 22:48:42,104 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:48:42,104 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2021-12-15 22:48:42,105 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-15 22:48:42,105 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:48:42,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:48:42,105 INFO L85 PathProgramCache]: Analyzing trace with hash 1246067565, now seen corresponding path program 1 times [2021-12-15 22:48:42,106 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:48:42,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339799352] [2021-12-15 22:48:42,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:48:42,106 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:48:42,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:48:42,291 INFO L134 CoverageAnalysis]: Checked inductivity of 1166 backedges. 708 proven. 93 refuted. 0 times theorem prover too weak. 365 trivial. 0 not checked. [2021-12-15 22:48:42,292 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:48:42,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339799352] [2021-12-15 22:48:42,292 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339799352] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 22:48:42,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [390498245] [2021-12-15 22:48:42,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:48:42,292 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 22:48:42,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 22:48:42,296 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) [2021-12-15 22:48:42,306 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-15 22:48:42,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:48:42,468 INFO L263 TraceCheckSpWp]: Trace formula consists of 788 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-15 22:48:42,478 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 22:48:43,360 INFO L134 CoverageAnalysis]: Checked inductivity of 1166 backedges. 254 proven. 0 refuted. 0 times theorem prover too weak. 912 trivial. 0 not checked. [2021-12-15 22:48:43,361 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 22:48:43,361 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [390498245] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:48:43,361 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-15 22:48:43,361 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-12-15 22:48:43,361 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239259089] [2021-12-15 22:48:43,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:48:43,362 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:48:43,362 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:48:43,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:48:43,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-15 22:48:43,362 INFO L87 Difference]: Start difference. First operand 3742 states and 4009 transitions. Second operand has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 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) [2021-12-15 22:48:43,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:48:43,726 INFO L93 Difference]: Finished difference Result 7304 states and 7837 transitions. [2021-12-15 22:48:43,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:48:43,727 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 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 619 [2021-12-15 22:48:43,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:48:43,746 INFO L225 Difference]: With dead ends: 7304 [2021-12-15 22:48:43,746 INFO L226 Difference]: Without dead ends: 3742 [2021-12-15 22:48:43,759 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 622 GetRequests, 618 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-15 22:48:43,760 INFO L933 BasicCegarLoop]: 242 mSDtfsCounter, 128 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 437 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-15 22:48:43,760 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 247 Invalid, 461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 437 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-15 22:48:43,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3742 states. [2021-12-15 22:48:43,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3742 to 3564. [2021-12-15 22:48:43,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3564 states, 3563 states have (on average 1.0665169800729721) internal successors, (3800), 3563 states have internal predecessors, (3800), 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) [2021-12-15 22:48:43,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3564 states to 3564 states and 3800 transitions. [2021-12-15 22:48:43,804 INFO L78 Accepts]: Start accepts. Automaton has 3564 states and 3800 transitions. Word has length 619 [2021-12-15 22:48:43,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:48:43,805 INFO L470 AbstractCegarLoop]: Abstraction has 3564 states and 3800 transitions. [2021-12-15 22:48:43,805 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 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) [2021-12-15 22:48:43,805 INFO L276 IsEmpty]: Start isEmpty. Operand 3564 states and 3800 transitions. [2021-12-15 22:48:43,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 712 [2021-12-15 22:48:43,812 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:48:43,813 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:48:43,831 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-15 22:48:44,031 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-12-15 22:48:44,032 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:48:44,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:48:44,033 INFO L85 PathProgramCache]: Analyzing trace with hash -498792045, now seen corresponding path program 1 times [2021-12-15 22:48:44,033 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:48:44,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982733052] [2021-12-15 22:48:44,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:48:44,033 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:48:44,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:48:44,204 INFO L134 CoverageAnalysis]: Checked inductivity of 1375 backedges. 917 proven. 93 refuted. 0 times theorem prover too weak. 365 trivial. 0 not checked. [2021-12-15 22:48:44,204 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:48:44,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982733052] [2021-12-15 22:48:44,204 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982733052] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 22:48:44,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1481231311] [2021-12-15 22:48:44,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:48:44,205 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 22:48:44,205 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 22:48:44,206 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) [2021-12-15 22:48:44,207 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-15 22:48:44,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:48:44,350 INFO L263 TraceCheckSpWp]: Trace formula consists of 880 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-15 22:48:44,357 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 22:48:45,038 INFO L134 CoverageAnalysis]: Checked inductivity of 1375 backedges. 254 proven. 0 refuted. 0 times theorem prover too weak. 1121 trivial. 0 not checked. [2021-12-15 22:48:45,039 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 22:48:45,039 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1481231311] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:48:45,039 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-15 22:48:45,039 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-12-15 22:48:45,040 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107559802] [2021-12-15 22:48:45,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:48:45,040 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:48:45,040 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:48:45,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:48:45,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-15 22:48:45,041 INFO L87 Difference]: Start difference. First operand 3564 states and 3800 transitions. Second operand has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 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) [2021-12-15 22:48:45,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:48:45,388 INFO L93 Difference]: Finished difference Result 6948 states and 7419 transitions. [2021-12-15 22:48:45,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:48:45,389 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 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 711 [2021-12-15 22:48:45,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:48:45,397 INFO L225 Difference]: With dead ends: 6948 [2021-12-15 22:48:45,397 INFO L226 Difference]: Without dead ends: 3564 [2021-12-15 22:48:45,400 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 714 GetRequests, 710 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-15 22:48:45,401 INFO L933 BasicCegarLoop]: 205 mSDtfsCounter, 131 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-15 22:48:45,401 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [131 Valid, 210 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-15 22:48:45,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3564 states. [2021-12-15 22:48:45,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3564 to 3208. [2021-12-15 22:48:45,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3208 states, 3207 states have (on average 1.0583099469909574) internal successors, (3394), 3207 states have internal predecessors, (3394), 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) [2021-12-15 22:48:45,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3208 states to 3208 states and 3394 transitions. [2021-12-15 22:48:45,470 INFO L78 Accepts]: Start accepts. Automaton has 3208 states and 3394 transitions. Word has length 711 [2021-12-15 22:48:45,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:48:45,471 INFO L470 AbstractCegarLoop]: Abstraction has 3208 states and 3394 transitions. [2021-12-15 22:48:45,471 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 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) [2021-12-15 22:48:45,472 INFO L276 IsEmpty]: Start isEmpty. Operand 3208 states and 3394 transitions. [2021-12-15 22:48:45,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 774 [2021-12-15 22:48:45,478 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:48:45,478 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 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] [2021-12-15 22:48:45,497 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-12-15 22:48:45,691 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,SelfDestructingSolverStorable12 [2021-12-15 22:48:45,692 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:48:45,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:48:45,692 INFO L85 PathProgramCache]: Analyzing trace with hash 1316877287, now seen corresponding path program 1 times [2021-12-15 22:48:45,692 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:48:45,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966523243] [2021-12-15 22:48:45,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:48:45,692 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:48:45,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:48:45,873 INFO L134 CoverageAnalysis]: Checked inductivity of 1914 backedges. 1297 proven. 93 refuted. 0 times theorem prover too weak. 524 trivial. 0 not checked. [2021-12-15 22:48:45,874 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:48:45,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966523243] [2021-12-15 22:48:45,875 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966523243] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 22:48:45,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [341313946] [2021-12-15 22:48:45,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:48:45,875 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 22:48:45,875 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 22:48:45,876 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) [2021-12-15 22:48:45,877 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-15 22:48:46,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:48:46,036 INFO L263 TraceCheckSpWp]: Trace formula consists of 966 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-15 22:48:46,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 22:48:46,798 INFO L134 CoverageAnalysis]: Checked inductivity of 1914 backedges. 305 proven. 0 refuted. 0 times theorem prover too weak. 1609 trivial. 0 not checked. [2021-12-15 22:48:46,798 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 22:48:46,799 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [341313946] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:48:46,799 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-15 22:48:46,799 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-12-15 22:48:46,799 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639188784] [2021-12-15 22:48:46,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:48:46,800 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:48:46,800 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:48:46,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:48:46,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-12-15 22:48:46,801 INFO L87 Difference]: Start difference. First operand 3208 states and 3394 transitions. Second operand has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 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) [2021-12-15 22:48:47,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:48:47,138 INFO L93 Difference]: Finished difference Result 4278 states and 4514 transitions. [2021-12-15 22:48:47,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:48:47,138 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 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 773 [2021-12-15 22:48:47,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:48:47,143 INFO L225 Difference]: With dead ends: 4278 [2021-12-15 22:48:47,143 INFO L226 Difference]: Without dead ends: 4276 [2021-12-15 22:48:47,144 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 776 GetRequests, 772 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-12-15 22:48:47,145 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 149 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-15 22:48:47,145 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 11 Invalid, 459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-15 22:48:47,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4276 states. [2021-12-15 22:48:47,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4276 to 3386. [2021-12-15 22:48:47,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3386 states, 3385 states have (on average 1.0564254062038405) internal successors, (3576), 3385 states have internal predecessors, (3576), 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) [2021-12-15 22:48:47,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3386 states to 3386 states and 3576 transitions. [2021-12-15 22:48:47,187 INFO L78 Accepts]: Start accepts. Automaton has 3386 states and 3576 transitions. Word has length 773 [2021-12-15 22:48:47,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:48:47,188 INFO L470 AbstractCegarLoop]: Abstraction has 3386 states and 3576 transitions. [2021-12-15 22:48:47,188 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 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) [2021-12-15 22:48:47,188 INFO L276 IsEmpty]: Start isEmpty. Operand 3386 states and 3576 transitions. [2021-12-15 22:48:47,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 808 [2021-12-15 22:48:47,197 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:48:47,197 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:48:47,216 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-12-15 22:48:47,411 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 22:48:47,412 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:48:47,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:48:47,412 INFO L85 PathProgramCache]: Analyzing trace with hash 1279549660, now seen corresponding path program 1 times [2021-12-15 22:48:47,412 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:48:47,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852308796] [2021-12-15 22:48:47,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:48:47,413 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:48:47,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:48:47,612 INFO L134 CoverageAnalysis]: Checked inductivity of 1948 backedges. 1331 proven. 93 refuted. 0 times theorem prover too weak. 524 trivial. 0 not checked. [2021-12-15 22:48:47,612 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:48:47,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852308796] [2021-12-15 22:48:47,612 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852308796] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 22:48:47,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1782935637] [2021-12-15 22:48:47,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:48:47,613 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 22:48:47,613 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 22:48:47,614 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-15 22:48:47,615 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-15 22:48:47,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:48:47,758 INFO L263 TraceCheckSpWp]: Trace formula consists of 1002 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-15 22:48:47,768 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 22:48:51,508 INFO L134 CoverageAnalysis]: Checked inductivity of 1948 backedges. 1475 proven. 108 refuted. 0 times theorem prover too weak. 365 trivial. 0 not checked. [2021-12-15 22:48:51,508 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-15 22:48:58,188 INFO L134 CoverageAnalysis]: Checked inductivity of 1948 backedges. 942 proven. 323 refuted. 0 times theorem prover too weak. 683 trivial. 0 not checked. [2021-12-15 22:48:58,188 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1782935637] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-15 22:48:58,188 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-15 22:48:58,189 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5, 4] total 11 [2021-12-15 22:48:58,189 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815516175] [2021-12-15 22:48:58,189 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-15 22:48:58,190 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-15 22:48:58,190 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:48:58,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-15 22:48:58,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2021-12-15 22:48:58,191 INFO L87 Difference]: Start difference. First operand 3386 states and 3576 transitions. Second operand has 12 states, 12 states have (on average 94.25) internal successors, (1131), 11 states have internal predecessors, (1131), 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) [2021-12-15 22:49:00,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:49:00,322 INFO L93 Difference]: Finished difference Result 8807 states and 9312 transitions. [2021-12-15 22:49:00,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-12-15 22:49:00,323 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 94.25) internal successors, (1131), 11 states have internal predecessors, (1131), 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 807 [2021-12-15 22:49:00,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:49:00,329 INFO L225 Difference]: With dead ends: 8807 [2021-12-15 22:49:00,329 INFO L226 Difference]: Without dead ends: 5601 [2021-12-15 22:49:00,331 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1627 GetRequests, 1606 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=187, Invalid=319, Unknown=0, NotChecked=0, Total=506 [2021-12-15 22:49:00,331 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 1360 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 3167 mSolverCounterSat, 266 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1360 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 3433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 266 IncrementalHoareTripleChecker+Valid, 3167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-12-15 22:49:00,332 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1360 Valid, 78 Invalid, 3433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [266 Valid, 3167 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-12-15 22:49:00,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5601 states. [2021-12-15 22:49:00,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5601 to 3920. [2021-12-15 22:49:00,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3920 states, 3919 states have (on average 1.0464404184741005) internal successors, (4101), 3919 states have internal predecessors, (4101), 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) [2021-12-15 22:49:00,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3920 states to 3920 states and 4101 transitions. [2021-12-15 22:49:00,372 INFO L78 Accepts]: Start accepts. Automaton has 3920 states and 4101 transitions. Word has length 807 [2021-12-15 22:49:00,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:49:00,373 INFO L470 AbstractCegarLoop]: Abstraction has 3920 states and 4101 transitions. [2021-12-15 22:49:00,373 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 94.25) internal successors, (1131), 11 states have internal predecessors, (1131), 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) [2021-12-15 22:49:00,373 INFO L276 IsEmpty]: Start isEmpty. Operand 3920 states and 4101 transitions. [2021-12-15 22:49:00,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1035 [2021-12-15 22:49:00,383 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:49:00,384 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:49:00,403 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-15 22:49:00,595 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-12-15 22:49:00,596 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:49:00,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:49:00,596 INFO L85 PathProgramCache]: Analyzing trace with hash -512774364, now seen corresponding path program 1 times [2021-12-15 22:49:00,596 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:49:00,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175195346] [2021-12-15 22:49:00,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:49:00,597 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:49:00,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:49:00,804 INFO L134 CoverageAnalysis]: Checked inductivity of 2894 backedges. 2174 proven. 155 refuted. 0 times theorem prover too weak. 565 trivial. 0 not checked. [2021-12-15 22:49:00,804 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:49:00,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175195346] [2021-12-15 22:49:00,804 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175195346] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 22:49:00,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [121986707] [2021-12-15 22:49:00,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:49:00,805 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 22:49:00,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 22:49:00,806 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-15 22:49:00,807 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-15 22:49:00,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:49:01,001 INFO L263 TraceCheckSpWp]: Trace formula consists of 1258 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-15 22:49:01,007 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 22:49:02,110 INFO L134 CoverageAnalysis]: Checked inductivity of 2894 backedges. 2174 proven. 155 refuted. 0 times theorem prover too weak. 565 trivial. 0 not checked. [2021-12-15 22:49:02,111 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-15 22:49:03,209 INFO L134 CoverageAnalysis]: Checked inductivity of 2894 backedges. 2174 proven. 155 refuted. 0 times theorem prover too weak. 565 trivial. 0 not checked. [2021-12-15 22:49:03,210 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [121986707] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-15 22:49:03,210 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-15 22:49:03,210 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2021-12-15 22:49:03,210 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825511083] [2021-12-15 22:49:03,210 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-15 22:49:03,212 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-15 22:49:03,212 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:49:03,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-15 22:49:03,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-12-15 22:49:03,213 INFO L87 Difference]: Start difference. First operand 3920 states and 4101 transitions. Second operand has 6 states, 6 states have (on average 159.83333333333334) internal successors, (959), 6 states have internal predecessors, (959), 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) [2021-12-15 22:49:03,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:49:03,845 INFO L93 Difference]: Finished difference Result 9084 states and 9542 transitions. [2021-12-15 22:49:03,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-15 22:49:03,846 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 159.83333333333334) internal successors, (959), 6 states have internal predecessors, (959), 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 1034 [2021-12-15 22:49:03,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:49:03,858 INFO L225 Difference]: With dead ends: 9084 [2021-12-15 22:49:03,858 INFO L226 Difference]: Without dead ends: 5344 [2021-12-15 22:49:03,861 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2070 GetRequests, 2066 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-12-15 22:49:03,862 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 78 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 830 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 917 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 830 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-15 22:49:03,863 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [78 Valid, 53 Invalid, 917 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 830 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-15 22:49:03,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5344 states. [2021-12-15 22:49:03,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5344 to 4988. [2021-12-15 22:49:03,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4988 states, 4987 states have (on average 1.0455183477040304) internal successors, (5214), 4987 states have internal predecessors, (5214), 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) [2021-12-15 22:49:03,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4988 states to 4988 states and 5214 transitions. [2021-12-15 22:49:03,906 INFO L78 Accepts]: Start accepts. Automaton has 4988 states and 5214 transitions. Word has length 1034 [2021-12-15 22:49:03,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:49:03,906 INFO L470 AbstractCegarLoop]: Abstraction has 4988 states and 5214 transitions. [2021-12-15 22:49:03,907 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 159.83333333333334) internal successors, (959), 6 states have internal predecessors, (959), 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) [2021-12-15 22:49:03,907 INFO L276 IsEmpty]: Start isEmpty. Operand 4988 states and 5214 transitions. [2021-12-15 22:49:03,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1202 [2021-12-15 22:49:03,920 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:49:03,921 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:49:03,939 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-12-15 22:49:04,135 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-12-15 22:49:04,136 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:49:04,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:49:04,136 INFO L85 PathProgramCache]: Analyzing trace with hash 33821815, now seen corresponding path program 1 times [2021-12-15 22:49:04,136 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:49:04,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401801433] [2021-12-15 22:49:04,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:49:04,136 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:49:04,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:49:04,416 INFO L134 CoverageAnalysis]: Checked inductivity of 4145 backedges. 1377 proven. 0 refuted. 0 times theorem prover too weak. 2768 trivial. 0 not checked. [2021-12-15 22:49:04,417 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:49:04,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401801433] [2021-12-15 22:49:04,417 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401801433] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:49:04,417 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:49:04,417 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-15 22:49:04,417 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118899766] [2021-12-15 22:49:04,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:49:04,418 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-15 22:49:04,418 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:49:04,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-15 22:49:04,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-15 22:49:04,419 INFO L87 Difference]: Start difference. First operand 4988 states and 5214 transitions. Second operand has 4 states, 4 states have (on average 97.0) internal successors, (388), 4 states have internal predecessors, (388), 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) [2021-12-15 22:49:04,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:49:04,998 INFO L93 Difference]: Finished difference Result 10328 states and 10810 transitions. [2021-12-15 22:49:04,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-15 22:49:04,998 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 97.0) internal successors, (388), 4 states have internal predecessors, (388), 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 1201 [2021-12-15 22:49:04,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:49:04,999 INFO L225 Difference]: With dead ends: 10328 [2021-12-15 22:49:04,999 INFO L226 Difference]: Without dead ends: 0 [2021-12-15 22:49:05,005 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-15 22:49:05,005 INFO L933 BasicCegarLoop]: 203 mSDtfsCounter, 165 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 1011 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 1063 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 1011 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-15 22:49:05,005 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 214 Invalid, 1063 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 1011 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-15 22:49:05,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-15 22:49:05,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-15 22:49:05,006 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) [2021-12-15 22:49:05,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-15 22:49:05,006 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1201 [2021-12-15 22:49:05,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:49:05,007 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-15 22:49:05,007 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 97.0) internal successors, (388), 4 states have internal predecessors, (388), 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) [2021-12-15 22:49:05,007 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-15 22:49:05,007 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-15 22:49:05,009 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-15 22:49:05,009 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-15 22:49:05,011 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-15 22:49:06,473 INFO L858 garLoopResultBuilder]: For program point L762(lines 762 880) no Hoare annotation was computed. [2021-12-15 22:49:06,474 INFO L858 garLoopResultBuilder]: For program point L895(line 895) no Hoare annotation was computed. [2021-12-15 22:49:06,474 INFO L858 garLoopResultBuilder]: For program point L829(lines 829 880) no Hoare annotation was computed. [2021-12-15 22:49:06,474 INFO L858 garLoopResultBuilder]: For program point L631(lines 631 880) no Hoare annotation was computed. [2021-12-15 22:49:06,474 INFO L858 garLoopResultBuilder]: For program point L565(lines 565 880) no Hoare annotation was computed. [2021-12-15 22:49:06,475 INFO L858 garLoopResultBuilder]: For program point L169-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:49:06,477 INFO L858 garLoopResultBuilder]: For program point L103-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:49:06,477 INFO L858 garLoopResultBuilder]: For program point L37-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:49:06,477 INFO L858 garLoopResultBuilder]: For program point L698(lines 698 880) no Hoare annotation was computed. [2021-12-15 22:49:06,477 INFO L858 garLoopResultBuilder]: For program point L500(lines 500 880) no Hoare annotation was computed. [2021-12-15 22:49:06,477 INFO L858 garLoopResultBuilder]: For program point L170(line 170) no Hoare annotation was computed. [2021-12-15 22:49:06,477 INFO L858 garLoopResultBuilder]: For program point L104(line 104) no Hoare annotation was computed. [2021-12-15 22:49:06,477 INFO L858 garLoopResultBuilder]: For program point L38(line 38) no Hoare annotation was computed. [2021-12-15 22:49:06,477 INFO L858 garLoopResultBuilder]: For program point L369(lines 369 880) no Hoare annotation was computed. [2021-12-15 22:49:06,477 INFO L858 garLoopResultBuilder]: For program point L303(lines 303 880) no Hoare annotation was computed. [2021-12-15 22:49:06,478 INFO L858 garLoopResultBuilder]: For program point L436(lines 436 880) no Hoare annotation was computed. [2021-12-15 22:49:06,478 INFO L858 garLoopResultBuilder]: For program point L172-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:49:06,478 INFO L858 garLoopResultBuilder]: For program point L106-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:49:06,478 INFO L858 garLoopResultBuilder]: For program point L40-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:49:06,478 INFO L858 garLoopResultBuilder]: For program point L239(lines 239 880) no Hoare annotation was computed. [2021-12-15 22:49:06,478 INFO L858 garLoopResultBuilder]: For program point L173(line 173) no Hoare annotation was computed. [2021-12-15 22:49:06,478 INFO L858 garLoopResultBuilder]: For program point L107(line 107) no Hoare annotation was computed. [2021-12-15 22:49:06,478 INFO L858 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2021-12-15 22:49:06,478 INFO L858 garLoopResultBuilder]: For program point L768(lines 768 880) no Hoare annotation was computed. [2021-12-15 22:49:06,478 INFO L858 garLoopResultBuilder]: For program point L636(lines 636 880) no Hoare annotation was computed. [2021-12-15 22:49:06,478 INFO L858 garLoopResultBuilder]: For program point L835(lines 835 880) no Hoare annotation was computed. [2021-12-15 22:49:06,478 INFO L858 garLoopResultBuilder]: For program point L571(lines 571 880) no Hoare annotation was computed. [2021-12-15 22:49:06,478 INFO L858 garLoopResultBuilder]: For program point L505(lines 505 880) no Hoare annotation was computed. [2021-12-15 22:49:06,478 INFO L858 garLoopResultBuilder]: For program point L175-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:49:06,478 INFO L858 garLoopResultBuilder]: For program point L109-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:49:06,478 INFO L858 garLoopResultBuilder]: For program point L43-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:49:06,478 INFO L858 garLoopResultBuilder]: For program point L704(lines 704 880) no Hoare annotation was computed. [2021-12-15 22:49:06,478 INFO L858 garLoopResultBuilder]: For program point L176(line 176) no Hoare annotation was computed. [2021-12-15 22:49:06,478 INFO L858 garLoopResultBuilder]: For program point L110(line 110) no Hoare annotation was computed. [2021-12-15 22:49:06,478 INFO L858 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2021-12-15 22:49:06,478 INFO L858 garLoopResultBuilder]: For program point L309(lines 309 880) no Hoare annotation was computed. [2021-12-15 22:49:06,479 INFO L858 garLoopResultBuilder]: For program point L442(lines 442 880) no Hoare annotation was computed. [2021-12-15 22:49:06,479 INFO L858 garLoopResultBuilder]: For program point L376(lines 376 880) no Hoare annotation was computed. [2021-12-15 22:49:06,479 INFO L858 garLoopResultBuilder]: For program point L178-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:49:06,479 INFO L858 garLoopResultBuilder]: For program point L112-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:49:06,479 INFO L858 garLoopResultBuilder]: For program point L46-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:49:06,479 INFO L858 garLoopResultBuilder]: For program point L245(lines 245 880) no Hoare annotation was computed. [2021-12-15 22:49:06,479 INFO L858 garLoopResultBuilder]: For program point L179(line 179) no Hoare annotation was computed. [2021-12-15 22:49:06,480 INFO L858 garLoopResultBuilder]: For program point L113(line 113) no Hoare annotation was computed. [2021-12-15 22:49:06,480 INFO L858 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2021-12-15 22:49:06,481 INFO L858 garLoopResultBuilder]: For program point L774(lines 774 880) no Hoare annotation was computed. [2021-12-15 22:49:06,481 INFO L858 garLoopResultBuilder]: For program point L642(lines 642 880) no Hoare annotation was computed. [2021-12-15 22:49:06,481 INFO L858 garLoopResultBuilder]: For program point L510(lines 510 880) no Hoare annotation was computed. [2021-12-15 22:49:06,481 INFO L858 garLoopResultBuilder]: For program point L841(lines 841 880) no Hoare annotation was computed. [2021-12-15 22:49:06,481 INFO L858 garLoopResultBuilder]: For program point L181-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:49:06,481 INFO L858 garLoopResultBuilder]: For program point L115-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:49:06,481 INFO L858 garLoopResultBuilder]: For program point L49-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:49:06,481 INFO L858 garLoopResultBuilder]: For program point L710(lines 710 880) no Hoare annotation was computed. [2021-12-15 22:49:06,481 INFO L858 garLoopResultBuilder]: For program point L578(lines 578 880) no Hoare annotation was computed. [2021-12-15 22:49:06,481 INFO L858 garLoopResultBuilder]: For program point L182(line 182) no Hoare annotation was computed. [2021-12-15 22:49:06,481 INFO L858 garLoopResultBuilder]: For program point L116(line 116) no Hoare annotation was computed. [2021-12-15 22:49:06,481 INFO L858 garLoopResultBuilder]: For program point L50(line 50) no Hoare annotation was computed. [2021-12-15 22:49:06,481 INFO L858 garLoopResultBuilder]: For program point L315(lines 315 880) no Hoare annotation was computed. [2021-12-15 22:49:06,481 INFO L858 garLoopResultBuilder]: For program point L448(lines 448 880) no Hoare annotation was computed. [2021-12-15 22:49:06,481 INFO L858 garLoopResultBuilder]: For program point L382(lines 382 880) no Hoare annotation was computed. [2021-12-15 22:49:06,481 INFO L858 garLoopResultBuilder]: For program point L184-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:49:06,481 INFO L858 garLoopResultBuilder]: For program point L118-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:49:06,481 INFO L858 garLoopResultBuilder]: For program point L52-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:49:06,482 INFO L858 garLoopResultBuilder]: For program point L251(lines 251 880) no Hoare annotation was computed. [2021-12-15 22:49:06,482 INFO L858 garLoopResultBuilder]: For program point L185(line 185) no Hoare annotation was computed. [2021-12-15 22:49:06,482 INFO L858 garLoopResultBuilder]: For program point L119(line 119) no Hoare annotation was computed. [2021-12-15 22:49:06,482 INFO L858 garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed. [2021-12-15 22:49:06,482 INFO L858 garLoopResultBuilder]: For program point L648(lines 648 880) no Hoare annotation was computed. [2021-12-15 22:49:06,482 INFO L858 garLoopResultBuilder]: For program point L516(lines 516 880) no Hoare annotation was computed. [2021-12-15 22:49:06,482 INFO L858 garLoopResultBuilder]: For program point L847(lines 847 880) no Hoare annotation was computed. [2021-12-15 22:49:06,482 INFO L858 garLoopResultBuilder]: For program point L781(lines 781 880) no Hoare annotation was computed. [2021-12-15 22:49:06,482 INFO L858 garLoopResultBuilder]: For program point L583(lines 583 880) no Hoare annotation was computed. [2021-12-15 22:49:06,482 INFO L858 garLoopResultBuilder]: For program point L187-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:49:06,483 INFO L858 garLoopResultBuilder]: For program point L121-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:49:06,483 INFO L858 garLoopResultBuilder]: For program point L55-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:49:06,483 INFO L858 garLoopResultBuilder]: For program point L716(lines 716 880) no Hoare annotation was computed. [2021-12-15 22:49:06,483 INFO L858 garLoopResultBuilder]: For program point L188(line 188) no Hoare annotation was computed. [2021-12-15 22:49:06,483 INFO L858 garLoopResultBuilder]: For program point L122(line 122) no Hoare annotation was computed. [2021-12-15 22:49:06,483 INFO L858 garLoopResultBuilder]: For program point L56(line 56) no Hoare annotation was computed. [2021-12-15 22:49:06,483 INFO L858 garLoopResultBuilder]: For program point L321(lines 321 880) no Hoare annotation was computed. [2021-12-15 22:49:06,483 INFO L858 garLoopResultBuilder]: For program point L454(lines 454 880) no Hoare annotation was computed. [2021-12-15 22:49:06,483 INFO L858 garLoopResultBuilder]: For program point L388(lines 388 880) no Hoare annotation was computed. [2021-12-15 22:49:06,484 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-15 22:49:06,484 INFO L858 garLoopResultBuilder]: For program point L190-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:49:06,484 INFO L858 garLoopResultBuilder]: For program point L124-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:49:06,484 INFO L858 garLoopResultBuilder]: For program point L58-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:49:06,484 INFO L858 garLoopResultBuilder]: For program point L257(lines 257 880) no Hoare annotation was computed. [2021-12-15 22:49:06,484 INFO L858 garLoopResultBuilder]: For program point L191(line 191) no Hoare annotation was computed. [2021-12-15 22:49:06,484 INFO L858 garLoopResultBuilder]: For program point L125(line 125) no Hoare annotation was computed. [2021-12-15 22:49:06,484 INFO L858 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2021-12-15 22:49:06,484 INFO L858 garLoopResultBuilder]: For program point L852(lines 852 880) no Hoare annotation was computed. [2021-12-15 22:49:06,484 INFO L858 garLoopResultBuilder]: For program point L654(lines 654 880) no Hoare annotation was computed. [2021-12-15 22:49:06,485 INFO L858 garLoopResultBuilder]: For program point L522(lines 522 880) no Hoare annotation was computed. [2021-12-15 22:49:06,485 INFO L858 garLoopResultBuilder]: For program point L787(lines 787 880) no Hoare annotation was computed. [2021-12-15 22:49:06,485 INFO L858 garLoopResultBuilder]: For program point L589(lines 589 880) no Hoare annotation was computed. [2021-12-15 22:49:06,485 INFO L858 garLoopResultBuilder]: For program point L193-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:49:06,485 INFO L858 garLoopResultBuilder]: For program point L127-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:49:06,485 INFO L858 garLoopResultBuilder]: For program point L61-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:49:06,485 INFO L858 garLoopResultBuilder]: For program point L722(lines 722 880) no Hoare annotation was computed. [2021-12-15 22:49:06,485 INFO L858 garLoopResultBuilder]: For program point L194(line 194) no Hoare annotation was computed. [2021-12-15 22:49:06,485 INFO L858 garLoopResultBuilder]: For program point L128(line 128) no Hoare annotation was computed. [2021-12-15 22:49:06,485 INFO L858 garLoopResultBuilder]: For program point L62(line 62) no Hoare annotation was computed. [2021-12-15 22:49:06,486 INFO L858 garLoopResultBuilder]: For program point L459(lines 459 880) no Hoare annotation was computed. [2021-12-15 22:49:06,486 INFO L858 garLoopResultBuilder]: For program point L327(lines 327 880) no Hoare annotation was computed. [2021-12-15 22:49:06,486 INFO L858 garLoopResultBuilder]: For program point L394(lines 394 880) no Hoare annotation was computed. [2021-12-15 22:49:06,486 INFO L858 garLoopResultBuilder]: For program point L262(lines 262 880) no Hoare annotation was computed. [2021-12-15 22:49:06,486 INFO L858 garLoopResultBuilder]: For program point L196-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:49:06,486 INFO L858 garLoopResultBuilder]: For program point L130-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:49:06,486 INFO L858 garLoopResultBuilder]: For program point L64-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:49:06,486 INFO L858 garLoopResultBuilder]: For program point L197(line 197) no Hoare annotation was computed. [2021-12-15 22:49:06,486 INFO L858 garLoopResultBuilder]: For program point L131(line 131) no Hoare annotation was computed. [2021-12-15 22:49:06,487 INFO L858 garLoopResultBuilder]: For program point L65(line 65) no Hoare annotation was computed. [2021-12-15 22:49:06,487 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-15 22:49:06,487 INFO L858 garLoopResultBuilder]: For program point L858(lines 858 880) no Hoare annotation was computed. [2021-12-15 22:49:06,487 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 173) no Hoare annotation was computed. [2021-12-15 22:49:06,487 INFO L858 garLoopResultBuilder]: For program point L660(lines 660 880) no Hoare annotation was computed. [2021-12-15 22:49:06,487 INFO L858 garLoopResultBuilder]: For program point L528(lines 528 880) no Hoare annotation was computed. [2021-12-15 22:49:06,487 INFO L858 garLoopResultBuilder]: For program point L793(lines 793 880) no Hoare annotation was computed. [2021-12-15 22:49:06,487 INFO L858 garLoopResultBuilder]: For program point L595(lines 595 880) no Hoare annotation was computed. [2021-12-15 22:49:06,487 INFO L858 garLoopResultBuilder]: For program point L199-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:49:06,488 INFO L858 garLoopResultBuilder]: For program point L133-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:49:06,488 INFO L858 garLoopResultBuilder]: For program point L67-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:49:06,488 INFO L858 garLoopResultBuilder]: For program point L728(lines 728 880) no Hoare annotation was computed. [2021-12-15 22:49:06,488 INFO L858 garLoopResultBuilder]: For program point L464(lines 464 880) no Hoare annotation was computed. [2021-12-15 22:49:06,488 INFO L858 garLoopResultBuilder]: For program point L200(line 200) no Hoare annotation was computed. [2021-12-15 22:49:06,488 INFO L858 garLoopResultBuilder]: For program point L134(line 134) no Hoare annotation was computed. [2021-12-15 22:49:06,488 INFO L858 garLoopResultBuilder]: For program point L68(line 68) no Hoare annotation was computed. [2021-12-15 22:49:06,488 INFO L858 garLoopResultBuilder]: For program point L333(lines 333 880) no Hoare annotation was computed. [2021-12-15 22:49:06,488 INFO L858 garLoopResultBuilder]: For program point L400(lines 400 880) no Hoare annotation was computed. [2021-12-15 22:49:06,488 INFO L858 garLoopResultBuilder]: For program point L268(lines 268 880) no Hoare annotation was computed. [2021-12-15 22:49:06,489 INFO L858 garLoopResultBuilder]: For program point L202-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:49:06,489 INFO L858 garLoopResultBuilder]: For program point L136-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:49:06,489 INFO L858 garLoopResultBuilder]: For program point L70-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:49:06,489 INFO L858 garLoopResultBuilder]: For program point L203(line 203) no Hoare annotation was computed. [2021-12-15 22:49:06,489 INFO L858 garLoopResultBuilder]: For program point L137(line 137) no Hoare annotation was computed. [2021-12-15 22:49:06,489 INFO L858 garLoopResultBuilder]: For program point L71(line 71) no Hoare annotation was computed. [2021-12-15 22:49:06,489 INFO L858 garLoopResultBuilder]: For program point L864(lines 864 880) no Hoare annotation was computed. [2021-12-15 22:49:06,489 INFO L858 garLoopResultBuilder]: For program point L666(lines 666 880) no Hoare annotation was computed. [2021-12-15 22:49:06,489 INFO L858 garLoopResultBuilder]: For program point L534(lines 534 880) no Hoare annotation was computed. [2021-12-15 22:49:06,489 INFO L858 garLoopResultBuilder]: For program point L799(lines 799 880) no Hoare annotation was computed. [2021-12-15 22:49:06,490 INFO L858 garLoopResultBuilder]: For program point L601(lines 601 880) no Hoare annotation was computed. [2021-12-15 22:49:06,490 INFO L858 garLoopResultBuilder]: For program point L205-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:49:06,490 INFO L858 garLoopResultBuilder]: For program point L139-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:49:06,490 INFO L858 garLoopResultBuilder]: For program point L73-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:49:06,490 INFO L858 garLoopResultBuilder]: For program point L734(lines 734 880) no Hoare annotation was computed. [2021-12-15 22:49:06,490 INFO L858 garLoopResultBuilder]: For program point L470(lines 470 880) no Hoare annotation was computed. [2021-12-15 22:49:06,490 INFO L858 garLoopResultBuilder]: For program point L206(line 206) no Hoare annotation was computed. [2021-12-15 22:49:06,490 INFO L858 garLoopResultBuilder]: For program point L140(line 140) no Hoare annotation was computed. [2021-12-15 22:49:06,490 INFO L858 garLoopResultBuilder]: For program point L74(line 74) no Hoare annotation was computed. [2021-12-15 22:49:06,490 INFO L858 garLoopResultBuilder]: For program point L339(lines 339 880) no Hoare annotation was computed. [2021-12-15 22:49:06,491 INFO L858 garLoopResultBuilder]: For program point L406(lines 406 880) no Hoare annotation was computed. [2021-12-15 22:49:06,491 INFO L858 garLoopResultBuilder]: For program point L274(lines 274 880) no Hoare annotation was computed. [2021-12-15 22:49:06,491 INFO L858 garLoopResultBuilder]: For program point L208-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:49:06,491 INFO L858 garLoopResultBuilder]: For program point L142-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:49:06,491 INFO L858 garLoopResultBuilder]: For program point L76-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:49:06,491 INFO L858 garLoopResultBuilder]: For program point L869(lines 869 880) no Hoare annotation was computed. [2021-12-15 22:49:06,491 INFO L858 garLoopResultBuilder]: For program point L209(line 209) no Hoare annotation was computed. [2021-12-15 22:49:06,491 INFO L858 garLoopResultBuilder]: For program point L143(line 143) no Hoare annotation was computed. [2021-12-15 22:49:06,491 INFO L858 garLoopResultBuilder]: For program point L77(line 77) no Hoare annotation was computed. [2021-12-15 22:49:06,492 INFO L858 garLoopResultBuilder]: For program point L672(lines 672 880) no Hoare annotation was computed. [2021-12-15 22:49:06,492 INFO L858 garLoopResultBuilder]: For program point L540(lines 540 880) no Hoare annotation was computed. [2021-12-15 22:49:06,492 INFO L858 garLoopResultBuilder]: For program point L805(lines 805 880) no Hoare annotation was computed. [2021-12-15 22:49:06,492 INFO L858 garLoopResultBuilder]: For program point L607(lines 607 880) no Hoare annotation was computed. [2021-12-15 22:49:06,492 INFO L858 garLoopResultBuilder]: For program point L211-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:49:06,492 INFO L858 garLoopResultBuilder]: For program point L145-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:49:06,492 INFO L858 garLoopResultBuilder]: For program point L79-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:49:06,492 INFO L858 garLoopResultBuilder]: For program point L740(lines 740 880) no Hoare annotation was computed. [2021-12-15 22:49:06,492 INFO L858 garLoopResultBuilder]: For program point L212(line 212) no Hoare annotation was computed. [2021-12-15 22:49:06,492 INFO L858 garLoopResultBuilder]: For program point L146(line 146) no Hoare annotation was computed. [2021-12-15 22:49:06,493 INFO L858 garLoopResultBuilder]: For program point L80(line 80) no Hoare annotation was computed. [2021-12-15 22:49:06,493 INFO L858 garLoopResultBuilder]: For program point L477(lines 477 880) no Hoare annotation was computed. [2021-12-15 22:49:06,493 INFO L858 garLoopResultBuilder]: For program point L345(lines 345 880) no Hoare annotation was computed. [2021-12-15 22:49:06,493 INFO L858 garLoopResultBuilder]: For program point L279(lines 279 880) no Hoare annotation was computed. [2021-12-15 22:49:06,493 INFO L858 garLoopResultBuilder]: For program point L412(lines 412 880) no Hoare annotation was computed. [2021-12-15 22:49:06,493 INFO L858 garLoopResultBuilder]: For program point L148-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:49:06,493 INFO L858 garLoopResultBuilder]: For program point L82-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:49:06,493 INFO L858 garLoopResultBuilder]: For program point L875(lines 875 880) no Hoare annotation was computed. [2021-12-15 22:49:06,493 INFO L858 garLoopResultBuilder]: For program point L149(line 149) no Hoare annotation was computed. [2021-12-15 22:49:06,493 INFO L858 garLoopResultBuilder]: For program point L83(line 83) no Hoare annotation was computed. [2021-12-15 22:49:06,493 INFO L858 garLoopResultBuilder]: For program point L678(lines 678 880) no Hoare annotation was computed. [2021-12-15 22:49:06,493 INFO L858 garLoopResultBuilder]: For program point L546(lines 546 880) no Hoare annotation was computed. [2021-12-15 22:49:06,493 INFO L858 garLoopResultBuilder]: For program point L811(lines 811 880) no Hoare annotation was computed. [2021-12-15 22:49:06,493 INFO L858 garLoopResultBuilder]: For program point L745(lines 745 880) no Hoare annotation was computed. [2021-12-15 22:49:06,493 INFO L858 garLoopResultBuilder]: For program point L613(lines 613 880) no Hoare annotation was computed. [2021-12-15 22:49:06,493 INFO L858 garLoopResultBuilder]: For program point L151-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:49:06,493 INFO L858 garLoopResultBuilder]: For program point L85-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:49:06,493 INFO L858 garLoopResultBuilder]: For program point L482(lines 482 880) no Hoare annotation was computed. [2021-12-15 22:49:06,493 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-15 22:49:06,493 INFO L858 garLoopResultBuilder]: For program point L152(line 152) no Hoare annotation was computed. [2021-12-15 22:49:06,493 INFO L858 garLoopResultBuilder]: For program point L86(line 86) no Hoare annotation was computed. [2021-12-15 22:49:06,494 INFO L858 garLoopResultBuilder]: For program point L351(lines 351 880) no Hoare annotation was computed. [2021-12-15 22:49:06,494 INFO L858 garLoopResultBuilder]: For program point L285(lines 285 880) no Hoare annotation was computed. [2021-12-15 22:49:06,494 INFO L858 garLoopResultBuilder]: For program point L418(lines 418 880) no Hoare annotation was computed. [2021-12-15 22:49:06,494 INFO L858 garLoopResultBuilder]: For program point L154-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:49:06,494 INFO L858 garLoopResultBuilder]: For program point L88-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:49:06,494 INFO L854 garLoopResultBuilder]: At program point L881(lines 30 882) the Hoare annotation is: (let ((.cse2 (<= 58 ~a12~0)) (.cse3 (<= ~a12~0 11)) (.cse1 (= ~a24~0 1)) (.cse4 (<= 9 ~a21~0)) (.cse5 (<= ~a21~0 6)) (.cse0 (<= ~a15~0 8))) (or (and .cse0 .cse1 (<= ~a12~0 76) .cse2) (and .cse1 .cse3 (<= 0 (+ ~a12~0 42)) .cse4) (and .cse5 .cse0 .cse1) (and (<= 8 ~a15~0) (or (not (= 9 ~a15~0)) (< 80 ~a12~0)) .cse1 .cse2) (and (<= 7 ~a15~0) .cse0 .cse1) (and .cse1 (<= 8 ~a21~0) (<= ~a21~0 8)) (and (<= 10 ~a21~0) .cse1 .cse3) (and .cse0 .cse1 .cse4) (and .cse5 .cse0 (<= (+ ~a12~0 49) 0)))) [2021-12-15 22:49:06,494 INFO L858 garLoopResultBuilder]: For program point L551(lines 551 880) no Hoare annotation was computed. [2021-12-15 22:49:06,494 INFO L858 garLoopResultBuilder]: For program point L221(lines 221 880) no Hoare annotation was computed. [2021-12-15 22:49:06,494 INFO L858 garLoopResultBuilder]: For program point L155(line 155) no Hoare annotation was computed. [2021-12-15 22:49:06,494 INFO L858 garLoopResultBuilder]: For program point L89(line 89) no Hoare annotation was computed. [2021-12-15 22:49:06,494 INFO L858 garLoopResultBuilder]: For program point L684(lines 684 880) no Hoare annotation was computed. [2021-12-15 22:49:06,494 INFO L858 garLoopResultBuilder]: For program point L817(lines 817 880) no Hoare annotation was computed. [2021-12-15 22:49:06,494 INFO L858 garLoopResultBuilder]: For program point L751(lines 751 880) no Hoare annotation was computed. [2021-12-15 22:49:06,494 INFO L858 garLoopResultBuilder]: For program point L619(lines 619 880) no Hoare annotation was computed. [2021-12-15 22:49:06,495 INFO L858 garLoopResultBuilder]: For program point L157-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:49:06,495 INFO L858 garLoopResultBuilder]: For program point L91-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:49:06,495 INFO L861 garLoopResultBuilder]: At program point L884(lines 884 900) the Hoare annotation is: true [2021-12-15 22:49:06,495 INFO L858 garLoopResultBuilder]: For program point L488(lines 488 880) no Hoare annotation was computed. [2021-12-15 22:49:06,495 INFO L858 garLoopResultBuilder]: For program point L290(lines 290 880) no Hoare annotation was computed. [2021-12-15 22:49:06,495 INFO L858 garLoopResultBuilder]: For program point L158(line 158) no Hoare annotation was computed. [2021-12-15 22:49:06,495 INFO L858 garLoopResultBuilder]: For program point L92(line 92) no Hoare annotation was computed. [2021-12-15 22:49:06,495 INFO L858 garLoopResultBuilder]: For program point L687(lines 687 880) no Hoare annotation was computed. [2021-12-15 22:49:06,495 INFO L858 garLoopResultBuilder]: For program point L357(lines 357 880) no Hoare annotation was computed. [2021-12-15 22:49:06,495 INFO L858 garLoopResultBuilder]: For program point L424(lines 424 880) no Hoare annotation was computed. [2021-12-15 22:49:06,495 INFO L858 garLoopResultBuilder]: For program point L160-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:49:06,495 INFO L858 garLoopResultBuilder]: For program point L94-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:49:06,495 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-15 22:49:06,495 INFO L858 garLoopResultBuilder]: For program point L557(lines 557 880) no Hoare annotation was computed. [2021-12-15 22:49:06,495 INFO L858 garLoopResultBuilder]: For program point L227(lines 227 880) no Hoare annotation was computed. [2021-12-15 22:49:06,495 INFO L858 garLoopResultBuilder]: For program point L161(line 161) no Hoare annotation was computed. [2021-12-15 22:49:06,495 INFO L858 garLoopResultBuilder]: For program point L95(line 95) no Hoare annotation was computed. [2021-12-15 22:49:06,495 INFO L858 garLoopResultBuilder]: For program point L757(lines 757 880) no Hoare annotation was computed. [2021-12-15 22:49:06,495 INFO L858 garLoopResultBuilder]: For program point L625(lines 625 880) no Hoare annotation was computed. [2021-12-15 22:49:06,495 INFO L858 garLoopResultBuilder]: For program point L163-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:49:06,495 INFO L858 garLoopResultBuilder]: For program point L97-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:49:06,496 INFO L858 garLoopResultBuilder]: For program point L31(lines 31 33) no Hoare annotation was computed. [2021-12-15 22:49:06,496 INFO L858 garLoopResultBuilder]: For program point L31-2(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:49:06,496 INFO L858 garLoopResultBuilder]: For program point L824(lines 824 880) no Hoare annotation was computed. [2021-12-15 22:49:06,496 INFO L854 garLoopResultBuilder]: At program point L890-2(lines 890 899) the Hoare annotation is: (let ((.cse2 (<= 58 ~a12~0)) (.cse3 (<= ~a12~0 11)) (.cse1 (= ~a24~0 1)) (.cse4 (<= 9 ~a21~0)) (.cse5 (<= ~a21~0 6)) (.cse0 (<= ~a15~0 8))) (or (and .cse0 .cse1 (<= ~a12~0 76) .cse2) (and .cse1 .cse3 (<= 0 (+ ~a12~0 42)) .cse4) (and .cse5 .cse0 .cse1) (and (<= 8 ~a15~0) (or (not (= 9 ~a15~0)) (< 80 ~a12~0)) .cse1 .cse2) (and (<= 7 ~a15~0) .cse0 .cse1) (and .cse1 (<= 8 ~a21~0) (<= ~a21~0 8)) (and (<= 10 ~a21~0) .cse1 .cse3) (and .cse0 .cse1 .cse4) (and .cse5 .cse0 (<= (+ ~a12~0 49) 0)))) [2021-12-15 22:49:06,496 INFO L858 garLoopResultBuilder]: For program point L494(lines 494 880) no Hoare annotation was computed. [2021-12-15 22:49:06,496 INFO L858 garLoopResultBuilder]: For program point L296(lines 296 880) no Hoare annotation was computed. [2021-12-15 22:49:06,496 INFO L858 garLoopResultBuilder]: For program point L164(line 164) no Hoare annotation was computed. [2021-12-15 22:49:06,496 INFO L858 garLoopResultBuilder]: For program point L98(line 98) no Hoare annotation was computed. [2021-12-15 22:49:06,496 INFO L858 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2021-12-15 22:49:06,496 INFO L858 garLoopResultBuilder]: For program point L693(lines 693 880) no Hoare annotation was computed. [2021-12-15 22:49:06,496 INFO L858 garLoopResultBuilder]: For program point L363(lines 363 880) no Hoare annotation was computed. [2021-12-15 22:49:06,496 INFO L858 garLoopResultBuilder]: For program point L562(lines 562 880) no Hoare annotation was computed. [2021-12-15 22:49:06,496 INFO L858 garLoopResultBuilder]: For program point L430(lines 430 880) no Hoare annotation was computed. [2021-12-15 22:49:06,496 INFO L858 garLoopResultBuilder]: For program point L166-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:49:06,496 INFO L858 garLoopResultBuilder]: For program point L100-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:49:06,496 INFO L858 garLoopResultBuilder]: For program point L34-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:49:06,496 INFO L858 garLoopResultBuilder]: For program point L233(lines 233 880) no Hoare annotation was computed. [2021-12-15 22:49:06,496 INFO L858 garLoopResultBuilder]: For program point L167(line 167) no Hoare annotation was computed. [2021-12-15 22:49:06,497 INFO L858 garLoopResultBuilder]: For program point L101(line 101) no Hoare annotation was computed. [2021-12-15 22:49:06,497 INFO L858 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2021-12-15 22:49:06,499 INFO L732 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:49:06,500 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-15 22:49:06,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 10:49:06 BoogieIcfgContainer [2021-12-15 22:49:06,527 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-15 22:49:06,527 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-15 22:49:06,528 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-15 22:49:06,528 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-15 22:49:06,528 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:48:34" (3/4) ... [2021-12-15 22:49:06,530 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-15 22:49:06,547 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-12-15 22:49:06,548 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-12-15 22:49:06,548 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-15 22:49:06,549 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-15 22:49:06,624 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-15 22:49:06,625 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-15 22:49:06,625 INFO L158 Benchmark]: Toolchain (without parser) took 33327.55ms. Allocated memory was 107.0MB in the beginning and 398.5MB in the end (delta: 291.5MB). Free memory was 77.1MB in the beginning and 233.8MB in the end (delta: -156.7MB). Peak memory consumption was 134.5MB. Max. memory is 16.1GB. [2021-12-15 22:49:06,625 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 107.0MB. Free memory is still 64.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 22:49:06,626 INFO L158 Benchmark]: CACSL2BoogieTranslator took 401.34ms. Allocated memory is still 107.0MB. Free memory was 77.1MB in the beginning and 61.3MB in the end (delta: 15.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-12-15 22:49:06,626 INFO L158 Benchmark]: Boogie Procedure Inliner took 80.38ms. Allocated memory was 107.0MB in the beginning and 142.6MB in the end (delta: 35.7MB). Free memory was 61.3MB in the beginning and 112.2MB in the end (delta: -50.9MB). Peak memory consumption was 12.4MB. Max. memory is 16.1GB. [2021-12-15 22:49:06,626 INFO L158 Benchmark]: Boogie Preprocessor took 75.56ms. Allocated memory is still 142.6MB. Free memory was 112.2MB in the beginning and 106.8MB in the end (delta: 5.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-15 22:49:06,627 INFO L158 Benchmark]: RCFGBuilder took 988.11ms. Allocated memory is still 142.6MB. Free memory was 105.7MB in the beginning and 101.8MB in the end (delta: 4.0MB). Peak memory consumption was 70.2MB. Max. memory is 16.1GB. [2021-12-15 22:49:06,627 INFO L158 Benchmark]: TraceAbstraction took 31679.85ms. Allocated memory was 142.6MB in the beginning and 398.5MB in the end (delta: 255.9MB). Free memory was 101.8MB in the beginning and 252.7MB in the end (delta: -150.9MB). Peak memory consumption was 250.6MB. Max. memory is 16.1GB. [2021-12-15 22:49:06,627 INFO L158 Benchmark]: Witness Printer took 97.36ms. Allocated memory is still 398.5MB. Free memory was 252.7MB in the beginning and 233.8MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2021-12-15 22:49:06,630 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 107.0MB. Free memory is still 64.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 401.34ms. Allocated memory is still 107.0MB. Free memory was 77.1MB in the beginning and 61.3MB in the end (delta: 15.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 80.38ms. Allocated memory was 107.0MB in the beginning and 142.6MB in the end (delta: 35.7MB). Free memory was 61.3MB in the beginning and 112.2MB in the end (delta: -50.9MB). Peak memory consumption was 12.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 75.56ms. Allocated memory is still 142.6MB. Free memory was 112.2MB in the beginning and 106.8MB in the end (delta: 5.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 988.11ms. Allocated memory is still 142.6MB. Free memory was 105.7MB in the beginning and 101.8MB in the end (delta: 4.0MB). Peak memory consumption was 70.2MB. Max. memory is 16.1GB. * TraceAbstraction took 31679.85ms. Allocated memory was 142.6MB in the beginning and 398.5MB in the end (delta: 255.9MB). Free memory was 101.8MB in the beginning and 252.7MB in the end (delta: -150.9MB). Peak memory consumption was 250.6MB. Max. memory is 16.1GB. * Witness Printer took 97.36ms. Allocated memory is still 398.5MB. Free memory was 252.7MB in the beginning and 233.8MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. 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: 173]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 245 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 31.6s, OverallIterations: 17, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 10.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.5s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3653 SdHoareTripleChecker+Valid, 9.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3653 mSDsluCounter, 2170 SdHoareTripleChecker+Invalid, 7.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 158 mSDsCounter, 1401 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 12268 IncrementalHoareTripleChecker+Invalid, 13669 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1401 mSolverCounterUnsat, 2012 mSDtfsCounter, 12268 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5843 GetRequests, 5789 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4988occurred in iteration=16, InterpolantAutomatonStates: 76, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 17 MinimizatonAttempts, 4535 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 73 NumberOfFragments, 219 HoareAnnotationTreeSize, 3 FomulaSimplifications, 1126 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 3 FomulaSimplificationsInter, 14128 FormulaSimplificationTreeSizeReductionInter, 1.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 16.6s InterpolantComputationTime, 11918 NumberOfCodeBlocks, 11918 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 13735 ConstructedInterpolants, 0 QuantifiedInterpolants, 58403 SizeOfPredicates, 4 NumberOfNonLiveVariables, 4894 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 24 InterpolantComputations, 15 PerfectInterpolantSequences, 29983/31251 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: ((((((((((a15 <= 8 && a24 == 1) && a12 <= 76) && 58 <= a12) || (((a24 == 1 && a12 <= 11) && 0 <= a12 + 42) && 9 <= a21)) || ((a21 <= 6 && a15 <= 8) && a24 == 1)) || (((8 <= a15 && (!(9 == a15) || 80 < a12)) && a24 == 1) && 58 <= a12)) || ((7 <= a15 && a15 <= 8) && a24 == 1)) || ((a24 == 1 && 8 <= a21) && a21 <= 8)) || ((10 <= a21 && a24 == 1) && a12 <= 11)) || ((a15 <= 8 && a24 == 1) && 9 <= a21)) || ((a21 <= 6 && a15 <= 8) && a12 + 49 <= 0) - InvariantResult [Line: 884]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 890]: Loop Invariant Derived loop invariant: ((((((((((a15 <= 8 && a24 == 1) && a12 <= 76) && 58 <= a12) || (((a24 == 1 && a12 <= 11) && 0 <= a12 + 42) && 9 <= a21)) || ((a21 <= 6 && a15 <= 8) && a24 == 1)) || (((8 <= a15 && (!(9 == a15) || 80 < a12)) && a24 == 1) && 58 <= a12)) || ((7 <= a15 && a15 <= 8) && a24 == 1)) || ((a24 == 1 && 8 <= a21) && a21 <= 8)) || ((10 <= a21 && a24 == 1) && a12 <= 11)) || ((a15 <= 8 && a24 == 1) && 9 <= a21)) || ((a21 <= 6 && a15 <= 8) && a12 + 49 <= 0) RESULT: Ultimate proved your program to be correct! [2021-12-15 22:49:06,654 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