./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem02_label31.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 20ed64ec Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem02_label31.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 5dd4c4a8834c6f526493b06f6bf2b3c1eba582a5 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-25 20:43:21,882 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-25 20:43:21,884 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-25 20:43:21,914 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-25 20:43:21,915 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-25 20:43:21,917 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-25 20:43:21,918 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-25 20:43:21,922 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-25 20:43:21,924 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-25 20:43:21,927 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-25 20:43:21,928 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-25 20:43:21,950 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-25 20:43:21,950 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-25 20:43:21,952 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-25 20:43:21,954 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-25 20:43:21,956 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-25 20:43:21,957 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-25 20:43:21,958 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-25 20:43:21,959 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-25 20:43:21,964 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-25 20:43:21,965 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-25 20:43:21,966 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-25 20:43:21,967 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-25 20:43:21,968 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-25 20:43:21,973 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-25 20:43:21,973 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-25 20:43:21,973 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-25 20:43:21,974 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-25 20:43:21,975 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-25 20:43:21,975 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-25 20:43:21,976 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-25 20:43:21,976 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-25 20:43:21,977 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-25 20:43:21,978 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-25 20:43:21,979 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-25 20:43:21,979 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-25 20:43:21,980 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-25 20:43:21,980 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-25 20:43:21,980 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-25 20:43:21,981 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-25 20:43:21,982 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-25 20:43:21,985 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-25 20:43:22,013 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-25 20:43:22,014 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-25 20:43:22,015 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-25 20:43:22,015 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-25 20:43:22,016 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-25 20:43:22,017 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-25 20:43:22,017 INFO L138 SettingsManager]: * Use SBE=true [2021-08-25 20:43:22,017 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-25 20:43:22,017 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-25 20:43:22,017 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-25 20:43:22,018 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-25 20:43:22,018 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-25 20:43:22,018 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-25 20:43:22,018 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-25 20:43:22,019 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-25 20:43:22,019 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-25 20:43:22,019 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-25 20:43:22,019 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-25 20:43:22,019 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-25 20:43:22,019 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-25 20:43:22,019 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-25 20:43:22,020 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-25 20:43:22,020 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-25 20:43:22,020 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-25 20:43:22,020 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-25 20:43:22,020 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-25 20:43:22,020 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-25 20:43:22,021 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-25 20:43:22,021 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-25 20:43:22,021 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-25 20:43:22,021 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5dd4c4a8834c6f526493b06f6bf2b3c1eba582a5 [2021-08-25 20:43:22,277 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-25 20:43:22,296 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-25 20:43:22,298 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-25 20:43:22,299 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-25 20:43:22,300 INFO L275 PluginConnector]: CDTParser initialized [2021-08-25 20:43:22,301 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem02_label31.c [2021-08-25 20:43:22,348 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9abaf1080/05d8652bc480462bb39419a086656764/FLAGd6852efef [2021-08-25 20:43:22,728 INFO L306 CDTParser]: Found 1 translation units. [2021-08-25 20:43:22,728 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem02_label31.c [2021-08-25 20:43:22,748 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9abaf1080/05d8652bc480462bb39419a086656764/FLAGd6852efef [2021-08-25 20:43:22,759 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9abaf1080/05d8652bc480462bb39419a086656764 [2021-08-25 20:43:22,762 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-25 20:43:22,763 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-25 20:43:22,765 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-25 20:43:22,765 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-25 20:43:22,767 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-25 20:43:22,768 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 08:43:22" (1/1) ... [2021-08-25 20:43:22,768 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55eb4082 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:43:22, skipping insertion in model container [2021-08-25 20:43:22,769 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 08:43:22" (1/1) ... [2021-08-25 20:43:22,776 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-25 20:43:22,815 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-25 20:43:23,034 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem02_label31.c[18601,18614] [2021-08-25 20:43:23,051 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-25 20:43:23,066 INFO L203 MainTranslator]: Completed pre-run [2021-08-25 20:43:23,137 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem02_label31.c[18601,18614] [2021-08-25 20:43:23,150 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-25 20:43:23,161 INFO L208 MainTranslator]: Completed translation [2021-08-25 20:43:23,162 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:43:23 WrapperNode [2021-08-25 20:43:23,163 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-25 20:43:23,164 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-25 20:43:23,164 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-25 20:43:23,165 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-25 20:43:23,169 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:43:23" (1/1) ... [2021-08-25 20:43:23,193 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:43:23" (1/1) ... [2021-08-25 20:43:23,226 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-25 20:43:23,227 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-25 20:43:23,227 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-25 20:43:23,227 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-25 20:43:23,233 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:43:23" (1/1) ... [2021-08-25 20:43:23,233 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:43:23" (1/1) ... [2021-08-25 20:43:23,235 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:43:23" (1/1) ... [2021-08-25 20:43:23,236 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:43:23" (1/1) ... [2021-08-25 20:43:23,251 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:43:23" (1/1) ... [2021-08-25 20:43:23,260 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:43:23" (1/1) ... [2021-08-25 20:43:23,266 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:43:23" (1/1) ... [2021-08-25 20:43:23,269 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-25 20:43:23,270 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-25 20:43:23,270 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-25 20:43:23,270 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-25 20:43:23,271 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:43:23" (1/1) ... [2021-08-25 20:43:23,282 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-25 20:43:23,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 20:43:23,310 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) [2021-08-25 20:43:23,321 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 [2021-08-25 20:43:23,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-25 20:43:23,349 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-25 20:43:23,350 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-25 20:43:23,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-25 20:43:24,086 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-25 20:43:24,087 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-08-25 20:43:24,089 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 08:43:24 BoogieIcfgContainer [2021-08-25 20:43:24,089 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-25 20:43:24,090 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-25 20:43:24,090 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-25 20:43:24,092 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-25 20:43:24,093 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 08:43:22" (1/3) ... [2021-08-25 20:43:24,093 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@acc9353 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 08:43:24, skipping insertion in model container [2021-08-25 20:43:24,094 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:43:23" (2/3) ... [2021-08-25 20:43:24,094 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@acc9353 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 08:43:24, skipping insertion in model container [2021-08-25 20:43:24,094 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 08:43:24" (3/3) ... [2021-08-25 20:43:24,095 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem02_label31.c [2021-08-25 20:43:24,098 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-25 20:43:24,098 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-25 20:43:24,125 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-25 20:43:24,129 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, mConcurrency=FINITE_AUTOMATA, 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 [2021-08-25 20:43:24,129 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-25 20:43:24,142 INFO L276 IsEmpty]: Start isEmpty. Operand has 227 states, 225 states have (on average 1.6666666666666667) internal successors, (375), 226 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:43:24,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-08-25 20:43:24,155 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:43:24,155 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 20:43:24,156 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:43:24,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:43:24,161 INFO L82 PathProgramCache]: Analyzing trace with hash 1691815701, now seen corresponding path program 1 times [2021-08-25 20:43:24,167 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:43:24,167 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30286238] [2021-08-25 20:43:24,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:43:24,168 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:43:24,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:43:24,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 20:43:24,456 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:43:24,456 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30286238] [2021-08-25 20:43:24,457 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30286238] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:43:24,457 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:43:24,457 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-25 20:43:24,458 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549116488] [2021-08-25 20:43:24,461 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:43:24,461 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:43:24,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:43:24,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:43:24,471 INFO L87 Difference]: Start difference. First operand has 227 states, 225 states have (on average 1.6666666666666667) internal successors, (375), 226 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 2 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:43:25,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:43:25,010 INFO L93 Difference]: Finished difference Result 601 states and 1035 transitions. [2021-08-25 20:43:25,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:43:25,012 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 2 states have internal predecessors, (116), 0 states have call successors, (0), 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 116 [2021-08-25 20:43:25,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:43:25,027 INFO L225 Difference]: With dead ends: 601 [2021-08-25 20:43:25,028 INFO L226 Difference]: Without dead ends: 310 [2021-08-25 20:43:25,032 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:43:25,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2021-08-25 20:43:25,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 310. [2021-08-25 20:43:25,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 309 states have (on average 1.4368932038834952) internal successors, (444), 309 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:43:25,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 444 transitions. [2021-08-25 20:43:25,085 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 444 transitions. Word has length 116 [2021-08-25 20:43:25,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:43:25,086 INFO L470 AbstractCegarLoop]: Abstraction has 310 states and 444 transitions. [2021-08-25 20:43:25,086 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 2 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:43:25,086 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 444 transitions. [2021-08-25 20:43:25,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-08-25 20:43:25,092 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:43:25,092 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 20:43:25,092 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-25 20:43:25,093 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:43:25,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:43:25,096 INFO L82 PathProgramCache]: Analyzing trace with hash -306269546, now seen corresponding path program 1 times [2021-08-25 20:43:25,096 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:43:25,096 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768600573] [2021-08-25 20:43:25,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:43:25,096 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:43:25,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:43:25,169 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 20:43:25,169 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:43:25,169 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768600573] [2021-08-25 20:43:25,170 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768600573] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:43:25,170 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:43:25,170 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-25 20:43:25,170 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540957033] [2021-08-25 20:43:25,171 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:43:25,172 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:43:25,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:43:25,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:43:25,173 INFO L87 Difference]: Start difference. First operand 310 states and 444 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 2 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:43:25,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:43:25,618 INFO L93 Difference]: Finished difference Result 911 states and 1313 transitions. [2021-08-25 20:43:25,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:43:25,618 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 2 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2021-08-25 20:43:25,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:43:25,622 INFO L225 Difference]: With dead ends: 911 [2021-08-25 20:43:25,622 INFO L226 Difference]: Without dead ends: 603 [2021-08-25 20:43:25,624 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:43:25,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 603 states. [2021-08-25 20:43:25,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 603 to 598. [2021-08-25 20:43:25,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 598 states, 597 states have (on average 1.3953098827470687) internal successors, (833), 597 states have internal predecessors, (833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:43:25,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 598 states to 598 states and 833 transitions. [2021-08-25 20:43:25,637 INFO L78 Accepts]: Start accepts. Automaton has 598 states and 833 transitions. Word has length 134 [2021-08-25 20:43:25,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:43:25,637 INFO L470 AbstractCegarLoop]: Abstraction has 598 states and 833 transitions. [2021-08-25 20:43:25,637 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 2 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:43:25,637 INFO L276 IsEmpty]: Start isEmpty. Operand 598 states and 833 transitions. [2021-08-25 20:43:25,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2021-08-25 20:43:25,641 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:43:25,641 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 20:43:25,641 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-25 20:43:25,642 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:43:25,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:43:25,642 INFO L82 PathProgramCache]: Analyzing trace with hash 5389586, now seen corresponding path program 1 times [2021-08-25 20:43:25,642 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:43:25,642 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051256203] [2021-08-25 20:43:25,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:43:25,643 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:43:25,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:43:25,691 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 20:43:25,691 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:43:25,691 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051256203] [2021-08-25 20:43:25,691 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051256203] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:43:25,691 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:43:25,691 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 20:43:25,691 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477154785] [2021-08-25 20:43:25,692 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:43:25,692 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:43:25,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:43:25,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:43:25,693 INFO L87 Difference]: Start difference. First operand 598 states and 833 transitions. Second operand has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:43:26,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:43:26,071 INFO L93 Difference]: Finished difference Result 1755 states and 2451 transitions. [2021-08-25 20:43:26,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:43:26,074 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 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 144 [2021-08-25 20:43:26,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:43:26,077 INFO L225 Difference]: With dead ends: 1755 [2021-08-25 20:43:26,078 INFO L226 Difference]: Without dead ends: 1159 [2021-08-25 20:43:26,078 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:43:26,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1159 states. [2021-08-25 20:43:26,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1159 to 1159. [2021-08-25 20:43:26,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1159 states, 1158 states have (on average 1.3419689119170986) internal successors, (1554), 1158 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:43:26,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1159 states to 1159 states and 1554 transitions. [2021-08-25 20:43:26,095 INFO L78 Accepts]: Start accepts. Automaton has 1159 states and 1554 transitions. Word has length 144 [2021-08-25 20:43:26,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:43:26,095 INFO L470 AbstractCegarLoop]: Abstraction has 1159 states and 1554 transitions. [2021-08-25 20:43:26,096 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:43:26,096 INFO L276 IsEmpty]: Start isEmpty. Operand 1159 states and 1554 transitions. [2021-08-25 20:43:26,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2021-08-25 20:43:26,098 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:43:26,098 INFO L512 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 20:43:26,098 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-25 20:43:26,099 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:43:26,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:43:26,099 INFO L82 PathProgramCache]: Analyzing trace with hash 1535556893, now seen corresponding path program 1 times [2021-08-25 20:43:26,099 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:43:26,100 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858017529] [2021-08-25 20:43:26,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:43:26,100 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:43:26,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:43:26,135 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 20:43:26,135 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:43:26,136 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858017529] [2021-08-25 20:43:26,136 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858017529] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:43:26,136 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:43:26,136 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-25 20:43:26,136 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305163230] [2021-08-25 20:43:26,137 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:43:26,137 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:43:26,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:43:26,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:43:26,138 INFO L87 Difference]: Start difference. First operand 1159 states and 1554 transitions. Second operand has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 2 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:43:26,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:43:26,494 INFO L93 Difference]: Finished difference Result 3454 states and 4636 transitions. [2021-08-25 20:43:26,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:43:26,494 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 2 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 145 [2021-08-25 20:43:26,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:43:26,501 INFO L225 Difference]: With dead ends: 3454 [2021-08-25 20:43:26,501 INFO L226 Difference]: Without dead ends: 2297 [2021-08-25 20:43:26,503 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:43:26,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2297 states. [2021-08-25 20:43:26,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2297 to 2295. [2021-08-25 20:43:26,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2295 states, 2294 states have (on average 1.2903225806451613) internal successors, (2960), 2294 states have internal predecessors, (2960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:43:26,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2295 states to 2295 states and 2960 transitions. [2021-08-25 20:43:26,543 INFO L78 Accepts]: Start accepts. Automaton has 2295 states and 2960 transitions. Word has length 145 [2021-08-25 20:43:26,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:43:26,544 INFO L470 AbstractCegarLoop]: Abstraction has 2295 states and 2960 transitions. [2021-08-25 20:43:26,544 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 2 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:43:26,544 INFO L276 IsEmpty]: Start isEmpty. Operand 2295 states and 2960 transitions. [2021-08-25 20:43:26,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2021-08-25 20:43:26,548 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:43:26,548 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 20:43:26,548 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-25 20:43:26,549 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:43:26,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:43:26,549 INFO L82 PathProgramCache]: Analyzing trace with hash -1601879897, now seen corresponding path program 1 times [2021-08-25 20:43:26,549 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:43:26,550 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999135517] [2021-08-25 20:43:26,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:43:26,550 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:43:26,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:43:26,585 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-08-25 20:43:26,586 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:43:26,586 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999135517] [2021-08-25 20:43:26,586 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999135517] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:43:26,586 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:43:26,586 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 20:43:26,586 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026327145] [2021-08-25 20:43:26,587 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:43:26,587 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:43:26,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:43:26,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:43:26,588 INFO L87 Difference]: Start difference. First operand 2295 states and 2960 transitions. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:43:26,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:43:26,919 INFO L93 Difference]: Finished difference Result 4588 states and 5920 transitions. [2021-08-25 20:43:26,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:43:26,920 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 149 [2021-08-25 20:43:26,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:43:26,926 INFO L225 Difference]: With dead ends: 4588 [2021-08-25 20:43:26,926 INFO L226 Difference]: Without dead ends: 2295 [2021-08-25 20:43:26,928 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:43:26,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2295 states. [2021-08-25 20:43:26,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2295 to 2286. [2021-08-25 20:43:26,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2286 states, 2285 states have (on average 1.2280087527352297) internal successors, (2806), 2285 states have internal predecessors, (2806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:43:26,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2286 states to 2286 states and 2806 transitions. [2021-08-25 20:43:26,958 INFO L78 Accepts]: Start accepts. Automaton has 2286 states and 2806 transitions. Word has length 149 [2021-08-25 20:43:26,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:43:26,958 INFO L470 AbstractCegarLoop]: Abstraction has 2286 states and 2806 transitions. [2021-08-25 20:43:26,958 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:43:26,958 INFO L276 IsEmpty]: Start isEmpty. Operand 2286 states and 2806 transitions. [2021-08-25 20:43:26,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2021-08-25 20:43:26,962 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:43:26,962 INFO L512 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 20:43:26,962 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-25 20:43:26,962 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:43:26,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:43:26,963 INFO L82 PathProgramCache]: Analyzing trace with hash 256350590, now seen corresponding path program 1 times [2021-08-25 20:43:26,963 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:43:26,963 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220054502] [2021-08-25 20:43:26,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:43:26,964 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:43:26,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:43:27,001 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 20:43:27,002 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:43:27,002 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220054502] [2021-08-25 20:43:27,002 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220054502] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:43:27,002 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:43:27,002 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 20:43:27,003 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294707373] [2021-08-25 20:43:27,003 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:43:27,003 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:43:27,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:43:27,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:43:27,004 INFO L87 Difference]: Start difference. First operand 2286 states and 2806 transitions. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:43:27,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:43:27,330 INFO L93 Difference]: Finished difference Result 4414 states and 5399 transitions. [2021-08-25 20:43:27,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:43:27,331 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 152 [2021-08-25 20:43:27,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:43:27,337 INFO L225 Difference]: With dead ends: 4414 [2021-08-25 20:43:27,337 INFO L226 Difference]: Without dead ends: 2130 [2021-08-25 20:43:27,340 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:43:27,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2130 states. [2021-08-25 20:43:27,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2130 to 1430. [2021-08-25 20:43:27,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1430 states, 1429 states have (on average 1.1637508747375787) internal successors, (1663), 1429 states have internal predecessors, (1663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:43:27,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1430 states to 1430 states and 1663 transitions. [2021-08-25 20:43:27,361 INFO L78 Accepts]: Start accepts. Automaton has 1430 states and 1663 transitions. Word has length 152 [2021-08-25 20:43:27,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:43:27,361 INFO L470 AbstractCegarLoop]: Abstraction has 1430 states and 1663 transitions. [2021-08-25 20:43:27,361 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:43:27,361 INFO L276 IsEmpty]: Start isEmpty. Operand 1430 states and 1663 transitions. [2021-08-25 20:43:27,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-08-25 20:43:27,364 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:43:27,364 INFO L512 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 20:43:27,364 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-25 20:43:27,364 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:43:27,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:43:27,365 INFO L82 PathProgramCache]: Analyzing trace with hash -1547050092, now seen corresponding path program 1 times [2021-08-25 20:43:27,365 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:43:27,365 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093986787] [2021-08-25 20:43:27,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:43:27,365 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:43:27,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:43:27,437 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 20:43:27,438 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:43:27,438 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093986787] [2021-08-25 20:43:27,438 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093986787] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:43:27,438 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:43:27,438 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-25 20:43:27,438 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62073332] [2021-08-25 20:43:27,439 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-25 20:43:27,439 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:43:27,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-25 20:43:27,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-08-25 20:43:27,439 INFO L87 Difference]: Start difference. First operand 1430 states and 1663 transitions. Second operand has 5 states, 5 states have (on average 31.4) internal successors, (157), 4 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:43:28,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:43:28,064 INFO L93 Difference]: Finished difference Result 3740 states and 4296 transitions. [2021-08-25 20:43:28,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-25 20:43:28,065 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 4 states have internal predecessors, (157), 0 states have call successors, (0), 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 157 [2021-08-25 20:43:28,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:43:28,070 INFO L225 Difference]: With dead ends: 3740 [2021-08-25 20:43:28,070 INFO L226 Difference]: Without dead ends: 2026 [2021-08-25 20:43:28,072 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 28.1ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-08-25 20:43:28,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2026 states. [2021-08-25 20:43:28,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2026 to 1570. [2021-08-25 20:43:28,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1570 states, 1569 states have (on average 1.1351179094964945) internal successors, (1781), 1569 states have internal predecessors, (1781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:43:28,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1570 states to 1570 states and 1781 transitions. [2021-08-25 20:43:28,094 INFO L78 Accepts]: Start accepts. Automaton has 1570 states and 1781 transitions. Word has length 157 [2021-08-25 20:43:28,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:43:28,094 INFO L470 AbstractCegarLoop]: Abstraction has 1570 states and 1781 transitions. [2021-08-25 20:43:28,094 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 4 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:43:28,094 INFO L276 IsEmpty]: Start isEmpty. Operand 1570 states and 1781 transitions. [2021-08-25 20:43:28,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2021-08-25 20:43:28,101 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:43:28,101 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 20:43:28,101 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-25 20:43:28,102 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:43:28,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:43:28,102 INFO L82 PathProgramCache]: Analyzing trace with hash -1921855434, now seen corresponding path program 1 times [2021-08-25 20:43:28,102 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:43:28,102 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666007024] [2021-08-25 20:43:28,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:43:28,103 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:43:28,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:43:28,136 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 20:43:28,136 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:43:28,136 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666007024] [2021-08-25 20:43:28,136 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666007024] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:43:28,136 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:43:28,137 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 20:43:28,137 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8957058] [2021-08-25 20:43:28,137 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:43:28,137 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:43:28,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:43:28,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:43:28,138 INFO L87 Difference]: Start difference. First operand 1570 states and 1781 transitions. Second operand has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:43:28,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:43:28,440 INFO L93 Difference]: Finished difference Result 3839 states and 4331 transitions. [2021-08-25 20:43:28,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:43:28,440 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 178 [2021-08-25 20:43:28,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:43:28,446 INFO L225 Difference]: With dead ends: 3839 [2021-08-25 20:43:28,446 INFO L226 Difference]: Without dead ends: 2271 [2021-08-25 20:43:28,448 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:43:28,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2271 states. [2021-08-25 20:43:28,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2271 to 2130. [2021-08-25 20:43:28,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2130 states, 2129 states have (on average 1.1014560826679192) internal successors, (2345), 2129 states have internal predecessors, (2345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:43:28,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2130 states to 2130 states and 2345 transitions. [2021-08-25 20:43:28,471 INFO L78 Accepts]: Start accepts. Automaton has 2130 states and 2345 transitions. Word has length 178 [2021-08-25 20:43:28,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:43:28,471 INFO L470 AbstractCegarLoop]: Abstraction has 2130 states and 2345 transitions. [2021-08-25 20:43:28,471 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:43:28,472 INFO L276 IsEmpty]: Start isEmpty. Operand 2130 states and 2345 transitions. [2021-08-25 20:43:28,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2021-08-25 20:43:28,475 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:43:28,475 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 20:43:28,475 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-08-25 20:43:28,475 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:43:28,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:43:28,476 INFO L82 PathProgramCache]: Analyzing trace with hash 462591916, now seen corresponding path program 1 times [2021-08-25 20:43:28,476 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:43:28,476 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135403123] [2021-08-25 20:43:28,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:43:28,476 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:43:28,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:43:28,513 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2021-08-25 20:43:28,513 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:43:28,513 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135403123] [2021-08-25 20:43:28,513 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135403123] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:43:28,513 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:43:28,514 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 20:43:28,514 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367671643] [2021-08-25 20:43:28,514 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:43:28,514 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:43:28,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:43:28,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:43:28,515 INFO L87 Difference]: Start difference. First operand 2130 states and 2345 transitions. Second operand has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:43:28,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:43:28,849 INFO L93 Difference]: Finished difference Result 4679 states and 5144 transitions. [2021-08-25 20:43:28,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:43:28,850 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 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 212 [2021-08-25 20:43:28,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:43:28,856 INFO L225 Difference]: With dead ends: 4679 [2021-08-25 20:43:28,856 INFO L226 Difference]: Without dead ends: 2551 [2021-08-25 20:43:28,858 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:43:28,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2551 states. [2021-08-25 20:43:28,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2551 to 2410. [2021-08-25 20:43:28,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2410 states, 2409 states have (on average 1.0975508509755085) internal successors, (2644), 2409 states have internal predecessors, (2644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:43:28,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2410 states to 2410 states and 2644 transitions. [2021-08-25 20:43:28,884 INFO L78 Accepts]: Start accepts. Automaton has 2410 states and 2644 transitions. Word has length 212 [2021-08-25 20:43:28,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:43:28,884 INFO L470 AbstractCegarLoop]: Abstraction has 2410 states and 2644 transitions. [2021-08-25 20:43:28,884 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:43:28,884 INFO L276 IsEmpty]: Start isEmpty. Operand 2410 states and 2644 transitions. [2021-08-25 20:43:28,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2021-08-25 20:43:28,898 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:43:28,899 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 20:43:28,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-08-25 20:43:28,899 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:43:28,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:43:28,899 INFO L82 PathProgramCache]: Analyzing trace with hash 914172155, now seen corresponding path program 1 times [2021-08-25 20:43:28,900 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:43:28,900 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58822462] [2021-08-25 20:43:28,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:43:28,900 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:43:28,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:43:28,939 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 102 proven. 13 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2021-08-25 20:43:28,940 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:43:28,940 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58822462] [2021-08-25 20:43:28,940 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58822462] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 20:43:28,940 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1204659928] [2021-08-25 20:43:28,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:43:28,941 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 20:43:28,941 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 20:43:28,943 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) [2021-08-25 20:43:28,955 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-08-25 20:43:29,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:43:29,090 INFO L263 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-25 20:43:29,097 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-25 20:43:29,592 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2021-08-25 20:43:29,592 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1204659928] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:43:29,593 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-25 20:43:29,593 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-08-25 20:43:29,593 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191188218] [2021-08-25 20:43:29,593 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:43:29,593 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:43:29,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:43:29,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-25 20:43:29,594 INFO L87 Difference]: Start difference. First operand 2410 states and 2644 transitions. Second operand has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:43:29,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:43:29,877 INFO L93 Difference]: Finished difference Result 4958 states and 5429 transitions. [2021-08-25 20:43:29,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:43:29,877 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 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 218 [2021-08-25 20:43:29,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:43:29,882 INFO L225 Difference]: With dead ends: 4958 [2021-08-25 20:43:29,883 INFO L226 Difference]: Without dead ends: 1846 [2021-08-25 20:43:29,886 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.7ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-25 20:43:29,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1846 states. [2021-08-25 20:43:29,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1846 to 1846. [2021-08-25 20:43:29,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1846 states, 1845 states have (on average 1.0601626016260162) internal successors, (1956), 1845 states have internal predecessors, (1956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:43:29,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1846 states to 1846 states and 1956 transitions. [2021-08-25 20:43:29,921 INFO L78 Accepts]: Start accepts. Automaton has 1846 states and 1956 transitions. Word has length 218 [2021-08-25 20:43:29,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:43:29,921 INFO L470 AbstractCegarLoop]: Abstraction has 1846 states and 1956 transitions. [2021-08-25 20:43:29,921 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:43:29,921 INFO L276 IsEmpty]: Start isEmpty. Operand 1846 states and 1956 transitions. [2021-08-25 20:43:29,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2021-08-25 20:43:29,925 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:43:29,925 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 20:43:29,946 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-08-25 20:43:30,141 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,SelfDestructingSolverStorable9 [2021-08-25 20:43:30,141 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:43:30,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:43:30,141 INFO L82 PathProgramCache]: Analyzing trace with hash 784485109, now seen corresponding path program 1 times [2021-08-25 20:43:30,141 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:43:30,141 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025801985] [2021-08-25 20:43:30,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:43:30,142 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:43:30,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:43:30,212 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 150 proven. 5 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2021-08-25 20:43:30,212 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:43:30,212 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025801985] [2021-08-25 20:43:30,212 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025801985] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 20:43:30,213 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [151919393] [2021-08-25 20:43:30,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:43:30,213 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 20:43:30,213 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 20:43:30,214 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) [2021-08-25 20:43:30,215 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-08-25 20:43:30,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:43:30,369 INFO L263 TraceCheckSpWp]: Trace formula consists of 453 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-25 20:43:30,381 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-25 20:43:30,925 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 155 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2021-08-25 20:43:30,925 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [151919393] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:43:30,925 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-25 20:43:30,926 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-08-25 20:43:30,926 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822170764] [2021-08-25 20:43:30,926 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:43:30,926 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:43:30,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:43:30,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-08-25 20:43:30,927 INFO L87 Difference]: Start difference. First operand 1846 states and 1956 transitions. Second operand has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:43:31,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:43:31,282 INFO L93 Difference]: Finished difference Result 3686 states and 3905 transitions. [2021-08-25 20:43:31,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:43:31,283 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 259 [2021-08-25 20:43:31,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:43:31,287 INFO L225 Difference]: With dead ends: 3686 [2021-08-25 20:43:31,287 INFO L226 Difference]: Without dead ends: 1420 [2021-08-25 20:43:31,289 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.4ms TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-08-25 20:43:31,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1420 states. [2021-08-25 20:43:31,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1420 to 1420. [2021-08-25 20:43:31,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1420 states, 1419 states have (on average 1.0380549682875264) internal successors, (1473), 1419 states have internal predecessors, (1473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:43:31,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1420 states to 1420 states and 1473 transitions. [2021-08-25 20:43:31,307 INFO L78 Accepts]: Start accepts. Automaton has 1420 states and 1473 transitions. Word has length 259 [2021-08-25 20:43:31,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:43:31,307 INFO L470 AbstractCegarLoop]: Abstraction has 1420 states and 1473 transitions. [2021-08-25 20:43:31,307 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:43:31,307 INFO L276 IsEmpty]: Start isEmpty. Operand 1420 states and 1473 transitions. [2021-08-25 20:43:31,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2021-08-25 20:43:31,311 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:43:31,312 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 20:43:31,340 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-08-25 20:43:31,533 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,SelfDestructingSolverStorable10 [2021-08-25 20:43:31,533 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:43:31,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:43:31,533 INFO L82 PathProgramCache]: Analyzing trace with hash 2080056846, now seen corresponding path program 1 times [2021-08-25 20:43:31,533 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:43:31,533 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676267465] [2021-08-25 20:43:31,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:43:31,534 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:43:31,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:43:31,581 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 158 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2021-08-25 20:43:31,581 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:43:31,581 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676267465] [2021-08-25 20:43:31,581 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676267465] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:43:31,581 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:43:31,582 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-25 20:43:31,582 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583793794] [2021-08-25 20:43:31,582 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:43:31,582 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:43:31,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:43:31,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:43:31,583 INFO L87 Difference]: Start difference. First operand 1420 states and 1473 transitions. Second operand has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 2 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:43:31,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:43:31,842 INFO L93 Difference]: Finished difference Result 2975 states and 3089 transitions. [2021-08-25 20:43:31,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:43:31,842 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 2 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 280 [2021-08-25 20:43:31,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:43:31,842 INFO L225 Difference]: With dead ends: 2975 [2021-08-25 20:43:31,842 INFO L226 Difference]: Without dead ends: 0 [2021-08-25 20:43:31,844 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:43:31,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-25 20:43:31,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-25 20:43:31,844 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) [2021-08-25 20:43:31,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-25 20:43:31,845 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 280 [2021-08-25 20:43:31,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:43:31,845 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-25 20:43:31,845 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 2 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:43:31,845 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-25 20:43:31,845 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-25 20:43:31,847 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-25 20:43:31,847 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-08-25 20:43:31,848 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-08-25 20:43:31,853 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 20:43:31,891 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 20:43:31,892 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 20:43:32,373 INFO L857 garLoopResultBuilder]: For program point L565-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:43:32,373 INFO L857 garLoopResultBuilder]: For program point L499-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:43:32,373 INFO L857 garLoopResultBuilder]: For program point L433-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:43:32,374 INFO L857 garLoopResultBuilder]: For program point L301(lines 301 423) no Hoare annotation was computed. [2021-08-25 20:43:32,374 INFO L857 garLoopResultBuilder]: For program point L235(lines 235 423) no Hoare annotation was computed. [2021-08-25 20:43:32,374 INFO L857 garLoopResultBuilder]: For program point L169(lines 169 423) no Hoare annotation was computed. [2021-08-25 20:43:32,374 INFO L857 garLoopResultBuilder]: For program point L566(line 566) no Hoare annotation was computed. [2021-08-25 20:43:32,374 INFO L857 garLoopResultBuilder]: For program point L500(line 500) no Hoare annotation was computed. [2021-08-25 20:43:32,374 INFO L857 garLoopResultBuilder]: For program point L434(line 434) no Hoare annotation was computed. [2021-08-25 20:43:32,374 INFO L857 garLoopResultBuilder]: For program point L303(lines 303 423) no Hoare annotation was computed. [2021-08-25 20:43:32,374 INFO L857 garLoopResultBuilder]: For program point L105(lines 105 423) no Hoare annotation was computed. [2021-08-25 20:43:32,374 INFO L857 garLoopResultBuilder]: For program point L568-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:43:32,374 INFO L857 garLoopResultBuilder]: For program point L502-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:43:32,375 INFO L857 garLoopResultBuilder]: For program point L436-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:43:32,375 INFO L857 garLoopResultBuilder]: For program point L40(lines 40 423) no Hoare annotation was computed. [2021-08-25 20:43:32,375 INFO L857 garLoopResultBuilder]: For program point L569(line 569) no Hoare annotation was computed. [2021-08-25 20:43:32,375 INFO L857 garLoopResultBuilder]: For program point L503(line 503) no Hoare annotation was computed. [2021-08-25 20:43:32,375 INFO L857 garLoopResultBuilder]: For program point L437(line 437) no Hoare annotation was computed. [2021-08-25 20:43:32,375 INFO L857 garLoopResultBuilder]: For program point L371(lines 371 423) no Hoare annotation was computed. [2021-08-25 20:43:32,375 INFO L857 garLoopResultBuilder]: For program point L571-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:43:32,375 INFO L857 garLoopResultBuilder]: For program point L505-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:43:32,375 INFO L857 garLoopResultBuilder]: For program point L439-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:43:32,375 INFO L857 garLoopResultBuilder]: For program point L307(lines 307 423) no Hoare annotation was computed. [2021-08-25 20:43:32,376 INFO L857 garLoopResultBuilder]: For program point L175(lines 175 423) no Hoare annotation was computed. [2021-08-25 20:43:32,376 INFO L857 garLoopResultBuilder]: For program point L109(lines 109 423) no Hoare annotation was computed. [2021-08-25 20:43:32,376 INFO L857 garLoopResultBuilder]: For program point L572(line 572) no Hoare annotation was computed. [2021-08-25 20:43:32,376 INFO L857 garLoopResultBuilder]: For program point L506(line 506) no Hoare annotation was computed. [2021-08-25 20:43:32,376 INFO L857 garLoopResultBuilder]: For program point L440(line 440) no Hoare annotation was computed. [2021-08-25 20:43:32,376 INFO L857 garLoopResultBuilder]: For program point L308(lines 308 317) no Hoare annotation was computed. [2021-08-25 20:43:32,376 INFO L857 garLoopResultBuilder]: For program point L242(lines 242 423) no Hoare annotation was computed. [2021-08-25 20:43:32,376 INFO L857 garLoopResultBuilder]: For program point L308-2(lines 308 317) no Hoare annotation was computed. [2021-08-25 20:43:32,376 INFO L857 garLoopResultBuilder]: For program point L45(lines 45 423) no Hoare annotation was computed. [2021-08-25 20:43:32,376 INFO L857 garLoopResultBuilder]: For program point L574-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:43:32,377 INFO L857 garLoopResultBuilder]: For program point L508-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:43:32,377 INFO L857 garLoopResultBuilder]: For program point L442-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:43:32,377 INFO L857 garLoopResultBuilder]: For program point L244(lines 244 423) no Hoare annotation was computed. [2021-08-25 20:43:32,377 INFO L857 garLoopResultBuilder]: For program point L575(line 575) no Hoare annotation was computed. [2021-08-25 20:43:32,377 INFO L857 garLoopResultBuilder]: For program point L509(line 509) no Hoare annotation was computed. [2021-08-25 20:43:32,377 INFO L857 garLoopResultBuilder]: For program point L443(line 443) no Hoare annotation was computed. [2021-08-25 20:43:32,377 INFO L857 garLoopResultBuilder]: For program point L179(lines 179 423) no Hoare annotation was computed. [2021-08-25 20:43:32,377 INFO L857 garLoopResultBuilder]: For program point L378(lines 378 423) no Hoare annotation was computed. [2021-08-25 20:43:32,377 INFO L857 garLoopResultBuilder]: For program point L48(lines 48 423) no Hoare annotation was computed. [2021-08-25 20:43:32,377 INFO L857 garLoopResultBuilder]: For program point L577-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:43:32,378 INFO L857 garLoopResultBuilder]: For program point L511-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:43:32,378 INFO L857 garLoopResultBuilder]: For program point L445-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:43:32,378 INFO L857 garLoopResultBuilder]: For program point L247(lines 247 423) no Hoare annotation was computed. [2021-08-25 20:43:32,378 INFO L857 garLoopResultBuilder]: For program point L578(line 578) no Hoare annotation was computed. [2021-08-25 20:43:32,378 INFO L857 garLoopResultBuilder]: For program point L512(line 512) no Hoare annotation was computed. [2021-08-25 20:43:32,378 INFO L857 garLoopResultBuilder]: For program point L446(line 446) no Hoare annotation was computed. [2021-08-25 20:43:32,378 INFO L857 garLoopResultBuilder]: For program point L248(lines 248 256) no Hoare annotation was computed. [2021-08-25 20:43:32,378 INFO L857 garLoopResultBuilder]: For program point L248-2(lines 248 256) no Hoare annotation was computed. [2021-08-25 20:43:32,378 INFO L857 garLoopResultBuilder]: For program point L116(lines 116 423) no Hoare annotation was computed. [2021-08-25 20:43:32,378 INFO L857 garLoopResultBuilder]: For program point L580-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:43:32,378 INFO L857 garLoopResultBuilder]: For program point L514-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:43:32,379 INFO L857 garLoopResultBuilder]: For program point L448-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:43:32,379 INFO L857 garLoopResultBuilder]: For program point L52(lines 52 423) no Hoare annotation was computed. [2021-08-25 20:43:32,379 INFO L857 garLoopResultBuilder]: For program point L581(line 581) no Hoare annotation was computed. [2021-08-25 20:43:32,379 INFO L857 garLoopResultBuilder]: For program point L515(line 515) no Hoare annotation was computed. [2021-08-25 20:43:32,379 INFO L857 garLoopResultBuilder]: For program point L449(line 449) no Hoare annotation was computed. [2021-08-25 20:43:32,379 INFO L857 garLoopResultBuilder]: For program point L185(lines 185 423) no Hoare annotation was computed. [2021-08-25 20:43:32,379 INFO L857 garLoopResultBuilder]: For program point L583-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:43:32,379 INFO L857 garLoopResultBuilder]: For program point L517-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:43:32,379 INFO L857 garLoopResultBuilder]: For program point L451-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:43:32,379 INFO L857 garLoopResultBuilder]: For program point L385(lines 385 423) no Hoare annotation was computed. [2021-08-25 20:43:32,380 INFO L857 garLoopResultBuilder]: For program point L319(lines 319 423) no Hoare annotation was computed. [2021-08-25 20:43:32,380 INFO L857 garLoopResultBuilder]: For program point L584(line 584) no Hoare annotation was computed. [2021-08-25 20:43:32,380 INFO L857 garLoopResultBuilder]: For program point L518(line 518) no Hoare annotation was computed. [2021-08-25 20:43:32,380 INFO L857 garLoopResultBuilder]: For program point L452(line 452) no Hoare annotation was computed. [2021-08-25 20:43:32,380 INFO L857 garLoopResultBuilder]: For program point L189(lines 189 423) no Hoare annotation was computed. [2021-08-25 20:43:32,380 INFO L857 garLoopResultBuilder]: For program point L123(lines 123 423) no Hoare annotation was computed. [2021-08-25 20:43:32,380 INFO L857 garLoopResultBuilder]: For program point L57(lines 57 423) no Hoare annotation was computed. [2021-08-25 20:43:32,380 INFO L857 garLoopResultBuilder]: For program point L586-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:43:32,380 INFO L857 garLoopResultBuilder]: For program point L520-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:43:32,380 INFO L857 garLoopResultBuilder]: For program point L454-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:43:32,381 INFO L857 garLoopResultBuilder]: For program point L388(lines 388 423) no Hoare annotation was computed. [2021-08-25 20:43:32,381 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-08-25 20:43:32,381 INFO L857 garLoopResultBuilder]: For program point L587(line 587) no Hoare annotation was computed. [2021-08-25 20:43:32,381 INFO L857 garLoopResultBuilder]: For program point L521(line 521) no Hoare annotation was computed. [2021-08-25 20:43:32,381 INFO L857 garLoopResultBuilder]: For program point L455(line 455) no Hoare annotation was computed. [2021-08-25 20:43:32,381 INFO L857 garLoopResultBuilder]: For program point L390(lines 390 423) no Hoare annotation was computed. [2021-08-25 20:43:32,381 INFO L857 garLoopResultBuilder]: For program point L324(lines 324 423) no Hoare annotation was computed. [2021-08-25 20:43:32,381 INFO L857 garLoopResultBuilder]: For program point L258(lines 258 423) no Hoare annotation was computed. [2021-08-25 20:43:32,381 INFO L857 garLoopResultBuilder]: For program point L60(lines 60 423) no Hoare annotation was computed. [2021-08-25 20:43:32,381 INFO L857 garLoopResultBuilder]: For program point L589-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:43:32,382 INFO L857 garLoopResultBuilder]: For program point L523-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:43:32,382 INFO L857 garLoopResultBuilder]: For program point L457-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:43:32,382 INFO L857 garLoopResultBuilder]: For program point L391(lines 391 397) no Hoare annotation was computed. [2021-08-25 20:43:32,382 INFO L857 garLoopResultBuilder]: For program point L325(lines 325 336) no Hoare annotation was computed. [2021-08-25 20:43:32,382 INFO L857 garLoopResultBuilder]: For program point L391-2(lines 391 397) no Hoare annotation was computed. [2021-08-25 20:43:32,382 INFO L857 garLoopResultBuilder]: For program point L325-2(lines 325 336) no Hoare annotation was computed. [2021-08-25 20:43:32,382 INFO L857 garLoopResultBuilder]: For program point L590(line 590) no Hoare annotation was computed. [2021-08-25 20:43:32,382 INFO L857 garLoopResultBuilder]: For program point L524(line 524) no Hoare annotation was computed. [2021-08-25 20:43:32,382 INFO L857 garLoopResultBuilder]: For program point L458(line 458) no Hoare annotation was computed. [2021-08-25 20:43:32,382 INFO L857 garLoopResultBuilder]: For program point L195(lines 195 423) no Hoare annotation was computed. [2021-08-25 20:43:32,382 INFO L857 garLoopResultBuilder]: For program point L129(lines 129 423) no Hoare annotation was computed. [2021-08-25 20:43:32,383 INFO L857 garLoopResultBuilder]: For program point L592-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:43:32,383 INFO L857 garLoopResultBuilder]: For program point L526-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:43:32,383 INFO L857 garLoopResultBuilder]: For program point L460-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:43:32,383 INFO L857 garLoopResultBuilder]: For program point L64(lines 64 423) no Hoare annotation was computed. [2021-08-25 20:43:32,383 INFO L857 garLoopResultBuilder]: For program point L593(line 593) no Hoare annotation was computed. [2021-08-25 20:43:32,383 INFO L857 garLoopResultBuilder]: For program point L527(line 527) no Hoare annotation was computed. [2021-08-25 20:43:32,383 INFO L857 garLoopResultBuilder]: For program point L461(line 461) no Hoare annotation was computed. [2021-08-25 20:43:32,383 INFO L857 garLoopResultBuilder]: For program point L263(lines 263 423) no Hoare annotation was computed. [2021-08-25 20:43:32,383 INFO L857 garLoopResultBuilder]: For program point L197(lines 197 423) no Hoare annotation was computed. [2021-08-25 20:43:32,383 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-08-25 20:43:32,384 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 530) no Hoare annotation was computed. [2021-08-25 20:43:32,384 INFO L857 garLoopResultBuilder]: For program point L595-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:43:32,384 INFO L857 garLoopResultBuilder]: For program point L529-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:43:32,384 INFO L857 garLoopResultBuilder]: For program point L463-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:43:32,384 INFO L857 garLoopResultBuilder]: For program point L199(lines 199 423) no Hoare annotation was computed. [2021-08-25 20:43:32,384 INFO L857 garLoopResultBuilder]: For program point L133(lines 133 423) no Hoare annotation was computed. [2021-08-25 20:43:32,384 INFO L857 garLoopResultBuilder]: For program point L596(line 596) no Hoare annotation was computed. [2021-08-25 20:43:32,384 INFO L857 garLoopResultBuilder]: For program point L530(line 530) no Hoare annotation was computed. [2021-08-25 20:43:32,384 INFO L857 garLoopResultBuilder]: For program point L464(line 464) no Hoare annotation was computed. [2021-08-25 20:43:32,385 INFO L857 garLoopResultBuilder]: For program point L399(lines 399 423) no Hoare annotation was computed. [2021-08-25 20:43:32,385 INFO L857 garLoopResultBuilder]: For program point L201(lines 201 423) no Hoare annotation was computed. [2021-08-25 20:43:32,385 INFO L857 garLoopResultBuilder]: For program point L69(lines 69 423) no Hoare annotation was computed. [2021-08-25 20:43:32,385 INFO L857 garLoopResultBuilder]: For program point L598-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:43:32,385 INFO L857 garLoopResultBuilder]: For program point L532-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:43:32,385 INFO L857 garLoopResultBuilder]: For program point L466-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:43:32,385 INFO L857 garLoopResultBuilder]: For program point L599(line 599) no Hoare annotation was computed. [2021-08-25 20:43:32,385 INFO L857 garLoopResultBuilder]: For program point L533(line 533) no Hoare annotation was computed. [2021-08-25 20:43:32,385 INFO L857 garLoopResultBuilder]: For program point L467(line 467) no Hoare annotation was computed. [2021-08-25 20:43:32,385 INFO L857 garLoopResultBuilder]: For program point L269(lines 269 423) no Hoare annotation was computed. [2021-08-25 20:43:32,385 INFO L857 garLoopResultBuilder]: For program point L204(lines 204 423) no Hoare annotation was computed. [2021-08-25 20:43:32,386 INFO L857 garLoopResultBuilder]: For program point L601-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:43:32,386 INFO L857 garLoopResultBuilder]: For program point L535-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:43:32,386 INFO L857 garLoopResultBuilder]: For program point L469-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:43:32,386 INFO L857 garLoopResultBuilder]: For program point L271(lines 271 423) no Hoare annotation was computed. [2021-08-25 20:43:32,386 INFO L857 garLoopResultBuilder]: For program point L602(line 602) no Hoare annotation was computed. [2021-08-25 20:43:32,386 INFO L857 garLoopResultBuilder]: For program point L536(line 536) no Hoare annotation was computed. [2021-08-25 20:43:32,386 INFO L857 garLoopResultBuilder]: For program point L470(line 470) no Hoare annotation was computed. [2021-08-25 20:43:32,386 INFO L857 garLoopResultBuilder]: For program point L404(lines 404 423) no Hoare annotation was computed. [2021-08-25 20:43:32,386 INFO L857 garLoopResultBuilder]: For program point L338(lines 338 423) no Hoare annotation was computed. [2021-08-25 20:43:32,386 INFO L857 garLoopResultBuilder]: For program point L272(lines 272 284) no Hoare annotation was computed. [2021-08-25 20:43:32,387 INFO L857 garLoopResultBuilder]: For program point L272-2(lines 272 284) no Hoare annotation was computed. [2021-08-25 20:43:32,387 INFO L857 garLoopResultBuilder]: For program point L140(lines 140 423) no Hoare annotation was computed. [2021-08-25 20:43:32,387 INFO L857 garLoopResultBuilder]: For program point L75(lines 75 423) no Hoare annotation was computed. [2021-08-25 20:43:32,387 INFO L857 garLoopResultBuilder]: For program point L604-1(lines 604 606) no Hoare annotation was computed. [2021-08-25 20:43:32,387 INFO L857 garLoopResultBuilder]: For program point L538-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:43:32,387 INFO L857 garLoopResultBuilder]: For program point L472-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:43:32,387 INFO L857 garLoopResultBuilder]: For program point L208(lines 208 423) no Hoare annotation was computed. [2021-08-25 20:43:32,387 INFO L857 garLoopResultBuilder]: For program point L605(line 605) no Hoare annotation was computed. [2021-08-25 20:43:32,387 INFO L857 garLoopResultBuilder]: For program point L539(line 539) no Hoare annotation was computed. [2021-08-25 20:43:32,387 INFO L857 garLoopResultBuilder]: For program point L473(line 473) no Hoare annotation was computed. [2021-08-25 20:43:32,388 INFO L857 garLoopResultBuilder]: For program point L341(lines 341 423) no Hoare annotation was computed. [2021-08-25 20:43:32,388 INFO L857 garLoopResultBuilder]: For program point L408(lines 408 423) no Hoare annotation was computed. [2021-08-25 20:43:32,388 INFO L857 garLoopResultBuilder]: For program point L342(lines 342 345) no Hoare annotation was computed. [2021-08-25 20:43:32,388 INFO L857 garLoopResultBuilder]: For program point L342-2(lines 342 345) no Hoare annotation was computed. [2021-08-25 20:43:32,388 INFO L857 garLoopResultBuilder]: For program point L144(lines 144 423) no Hoare annotation was computed. [2021-08-25 20:43:32,388 INFO L853 garLoopResultBuilder]: At program point L607(lines 39 608) the Hoare annotation is: (let ((.cse2 (= ~a19~0 1)) (.cse0 (= ~a25~0 1)) (.cse6 (<= ~a28~0 9)) (.cse9 (= ~a11~0 1))) (let ((.cse7 (<= ~a25~0 0)) (.cse5 (<= 9 ~a28~0)) (.cse13 (or (and .cse0 .cse9 .cse2) (and .cse0 .cse6 .cse9)))) (let ((.cse11 (<= 10 ~a28~0)) (.cse3 (or (and .cse5 .cse9 .cse7) (and .cse5 .cse13))) (.cse4 (<= ~a19~0 0)) (.cse8 (= ~a17~0 8)) (.cse10 (= ~a21~0 1)) (.cse12 (<= ~a28~0 10)) (.cse1 (= ~a11~0 0)) (.cse14 (<= ~a28~0 7))) (or (and .cse0 .cse1 .cse2) (and .cse3 .cse4) (and .cse5 .cse6 .cse1 .cse2 .cse7) (and .cse8 .cse9 .cse10 .cse2 .cse7) (and .cse11 .cse0 .cse1 .cse12 .cse4) (and .cse11 .cse3) (and .cse8 .cse10 .cse13 .cse2) (and .cse13 .cse14) (and .cse0 .cse1 .cse14 .cse4) (and .cse9 .cse7 .cse4) (and .cse1 .cse7 .cse4) (and .cse8 .cse5 .cse10 .cse1 .cse12 .cse2 .cse7) (and .cse1 .cse2 .cse14 .cse7))))) [2021-08-25 20:43:32,388 INFO L857 garLoopResultBuilder]: For program point L541-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:43:32,388 INFO L857 garLoopResultBuilder]: For program point L475-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:43:32,389 INFO L857 garLoopResultBuilder]: For program point L79(lines 79 423) no Hoare annotation was computed. [2021-08-25 20:43:32,389 INFO L857 garLoopResultBuilder]: For program point L542(line 542) no Hoare annotation was computed. [2021-08-25 20:43:32,389 INFO L857 garLoopResultBuilder]: For program point L476(line 476) no Hoare annotation was computed. [2021-08-25 20:43:32,389 INFO L857 garLoopResultBuilder]: For program point L212(lines 212 423) no Hoare annotation was computed. [2021-08-25 20:43:32,389 INFO L857 garLoopResultBuilder]: For program point L213(lines 213 220) no Hoare annotation was computed. [2021-08-25 20:43:32,389 INFO L857 garLoopResultBuilder]: For program point L213-2(lines 213 220) no Hoare annotation was computed. [2021-08-25 20:43:32,389 INFO L860 garLoopResultBuilder]: At program point L610(lines 610 627) the Hoare annotation is: true [2021-08-25 20:43:32,389 INFO L857 garLoopResultBuilder]: For program point L544-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:43:32,389 INFO L857 garLoopResultBuilder]: For program point L478-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:43:32,390 INFO L857 garLoopResultBuilder]: For program point L412(lines 412 423) no Hoare annotation was computed. [2021-08-25 20:43:32,390 INFO L857 garLoopResultBuilder]: For program point L545(line 545) no Hoare annotation was computed. [2021-08-25 20:43:32,390 INFO L857 garLoopResultBuilder]: For program point L479(line 479) no Hoare annotation was computed. [2021-08-25 20:43:32,390 INFO L857 garLoopResultBuilder]: For program point L347(lines 347 423) no Hoare annotation was computed. [2021-08-25 20:43:32,390 INFO L857 garLoopResultBuilder]: For program point L149(lines 149 423) no Hoare annotation was computed. [2021-08-25 20:43:32,390 INFO L857 garLoopResultBuilder]: For program point L414(lines 414 423) no Hoare annotation was computed. [2021-08-25 20:43:32,390 INFO L857 garLoopResultBuilder]: For program point L348(lines 348 357) no Hoare annotation was computed. [2021-08-25 20:43:32,390 INFO L857 garLoopResultBuilder]: For program point L348-2(lines 348 357) no Hoare annotation was computed. [2021-08-25 20:43:32,390 INFO L857 garLoopResultBuilder]: For program point L84(lines 84 423) no Hoare annotation was computed. [2021-08-25 20:43:32,390 INFO L857 garLoopResultBuilder]: For program point L547-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:43:32,390 INFO L857 garLoopResultBuilder]: For program point L481-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:43:32,391 INFO L857 garLoopResultBuilder]: For program point L85(lines 85 90) no Hoare annotation was computed. [2021-08-25 20:43:32,391 INFO L857 garLoopResultBuilder]: For program point L85-2(lines 85 90) no Hoare annotation was computed. [2021-08-25 20:43:32,391 INFO L857 garLoopResultBuilder]: For program point L548(line 548) no Hoare annotation was computed. [2021-08-25 20:43:32,391 INFO L857 garLoopResultBuilder]: For program point L482(line 482) no Hoare annotation was computed. [2021-08-25 20:43:32,391 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-08-25 20:43:32,391 INFO L857 garLoopResultBuilder]: For program point L417(lines 417 423) no Hoare annotation was computed. [2021-08-25 20:43:32,391 INFO L857 garLoopResultBuilder]: For program point L153(lines 153 423) no Hoare annotation was computed. [2021-08-25 20:43:32,391 INFO L853 garLoopResultBuilder]: At program point L616-2(lines 616 626) the Hoare annotation is: (let ((.cse2 (= ~a19~0 1)) (.cse0 (= ~a25~0 1)) (.cse6 (<= ~a28~0 9)) (.cse9 (= ~a11~0 1))) (let ((.cse7 (<= ~a25~0 0)) (.cse5 (<= 9 ~a28~0)) (.cse13 (or (and .cse0 .cse9 .cse2) (and .cse0 .cse6 .cse9)))) (let ((.cse11 (<= 10 ~a28~0)) (.cse3 (or (and .cse5 .cse9 .cse7) (and .cse5 .cse13))) (.cse4 (<= ~a19~0 0)) (.cse8 (= ~a17~0 8)) (.cse10 (= ~a21~0 1)) (.cse12 (<= ~a28~0 10)) (.cse1 (= ~a11~0 0)) (.cse14 (<= ~a28~0 7))) (or (and .cse0 .cse1 .cse2) (and .cse3 .cse4) (and .cse5 .cse6 .cse1 .cse2 .cse7) (and .cse8 .cse9 .cse10 .cse2 .cse7) (and .cse11 .cse0 .cse1 .cse12 .cse4) (and .cse11 .cse3) (and .cse8 .cse10 .cse13 .cse2) (and .cse13 .cse14) (and .cse0 .cse1 .cse14 .cse4) (and .cse9 .cse7 .cse4) (and .cse1 .cse7 .cse4) (and .cse8 .cse5 .cse10 .cse1 .cse12 .cse2 .cse7) (and .cse1 .cse2 .cse14 .cse7))))) [2021-08-25 20:43:32,391 INFO L857 garLoopResultBuilder]: For program point L550-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:43:32,392 INFO L857 garLoopResultBuilder]: For program point L484-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:43:32,392 INFO L857 garLoopResultBuilder]: For program point L286(lines 286 423) no Hoare annotation was computed. [2021-08-25 20:43:32,392 INFO L857 garLoopResultBuilder]: For program point L551(line 551) no Hoare annotation was computed. [2021-08-25 20:43:32,392 INFO L857 garLoopResultBuilder]: For program point L485(line 485) no Hoare annotation was computed. [2021-08-25 20:43:32,392 INFO L857 garLoopResultBuilder]: For program point L419(lines 419 423) no Hoare annotation was computed. [2021-08-25 20:43:32,392 INFO L857 garLoopResultBuilder]: For program point L222(lines 222 423) no Hoare annotation was computed. [2021-08-25 20:43:32,392 INFO L857 garLoopResultBuilder]: For program point L553-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:43:32,392 INFO L857 garLoopResultBuilder]: For program point L487-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:43:32,392 INFO L857 garLoopResultBuilder]: For program point L554(line 554) no Hoare annotation was computed. [2021-08-25 20:43:32,392 INFO L857 garLoopResultBuilder]: For program point L488(line 488) no Hoare annotation was computed. [2021-08-25 20:43:32,393 INFO L857 garLoopResultBuilder]: For program point L290(lines 290 423) no Hoare annotation was computed. [2021-08-25 20:43:32,393 INFO L857 garLoopResultBuilder]: For program point L158(lines 158 423) no Hoare annotation was computed. [2021-08-25 20:43:32,393 INFO L857 garLoopResultBuilder]: For program point L92(lines 92 423) no Hoare annotation was computed. [2021-08-25 20:43:32,393 INFO L857 garLoopResultBuilder]: For program point L621(line 621) no Hoare annotation was computed. [2021-08-25 20:43:32,393 INFO L857 garLoopResultBuilder]: For program point L225(lines 225 423) no Hoare annotation was computed. [2021-08-25 20:43:32,393 INFO L857 garLoopResultBuilder]: For program point L93(lines 93 99) no Hoare annotation was computed. [2021-08-25 20:43:32,393 INFO L857 garLoopResultBuilder]: For program point L93-2(lines 93 99) no Hoare annotation was computed. [2021-08-25 20:43:32,393 INFO L857 garLoopResultBuilder]: For program point L556-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:43:32,393 INFO L857 garLoopResultBuilder]: For program point L490-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:43:32,393 INFO L857 garLoopResultBuilder]: For program point L424(lines 424 426) no Hoare annotation was computed. [2021-08-25 20:43:32,393 INFO L857 garLoopResultBuilder]: For program point L424-2(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:43:32,394 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-08-25 20:43:32,394 INFO L857 garLoopResultBuilder]: For program point L557(line 557) no Hoare annotation was computed. [2021-08-25 20:43:32,394 INFO L857 garLoopResultBuilder]: For program point L491(line 491) no Hoare annotation was computed. [2021-08-25 20:43:32,394 INFO L857 garLoopResultBuilder]: For program point L425(line 425) no Hoare annotation was computed. [2021-08-25 20:43:32,394 INFO L857 garLoopResultBuilder]: For program point L359(lines 359 423) no Hoare annotation was computed. [2021-08-25 20:43:32,394 INFO L857 garLoopResultBuilder]: For program point L293(lines 293 423) no Hoare annotation was computed. [2021-08-25 20:43:32,394 INFO L857 garLoopResultBuilder]: For program point L228(lines 228 423) no Hoare annotation was computed. [2021-08-25 20:43:32,394 INFO L857 garLoopResultBuilder]: For program point L559-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:43:32,394 INFO L857 garLoopResultBuilder]: For program point L493-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:43:32,394 INFO L857 garLoopResultBuilder]: For program point L427-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:43:32,395 INFO L857 garLoopResultBuilder]: For program point L560(line 560) no Hoare annotation was computed. [2021-08-25 20:43:32,395 INFO L857 garLoopResultBuilder]: For program point L494(line 494) no Hoare annotation was computed. [2021-08-25 20:43:32,395 INFO L857 garLoopResultBuilder]: For program point L428(line 428) no Hoare annotation was computed. [2021-08-25 20:43:32,395 INFO L857 garLoopResultBuilder]: For program point L296(lines 296 423) no Hoare annotation was computed. [2021-08-25 20:43:32,395 INFO L857 garLoopResultBuilder]: For program point L164(lines 164 423) no Hoare annotation was computed. [2021-08-25 20:43:32,395 INFO L857 garLoopResultBuilder]: For program point L562-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:43:32,395 INFO L857 garLoopResultBuilder]: For program point L496-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:43:32,395 INFO L857 garLoopResultBuilder]: For program point L430-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:43:32,395 INFO L857 garLoopResultBuilder]: For program point L364(lines 364 423) no Hoare annotation was computed. [2021-08-25 20:43:32,395 INFO L857 garLoopResultBuilder]: For program point L563(line 563) no Hoare annotation was computed. [2021-08-25 20:43:32,395 INFO L857 garLoopResultBuilder]: For program point L497(line 497) no Hoare annotation was computed. [2021-08-25 20:43:32,396 INFO L857 garLoopResultBuilder]: For program point L431(line 431) no Hoare annotation was computed. [2021-08-25 20:43:32,396 INFO L857 garLoopResultBuilder]: For program point L233(lines 233 423) no Hoare annotation was computed. [2021-08-25 20:43:32,396 INFO L857 garLoopResultBuilder]: For program point L101(lines 101 423) no Hoare annotation was computed. [2021-08-25 20:43:32,399 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-25 20:43:32,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 08:43:32 BoogieIcfgContainer [2021-08-25 20:43:32,411 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-25 20:43:32,411 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-25 20:43:32,411 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-25 20:43:32,412 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-25 20:43:32,412 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 08:43:24" (3/4) ... [2021-08-25 20:43:32,414 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-08-25 20:43:32,431 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-08-25 20:43:32,432 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-08-25 20:43:32,433 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-25 20:43:32,433 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-25 20:43:32,492 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-25 20:43:32,493 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-25 20:43:32,495 INFO L168 Benchmark]: Toolchain (without parser) took 9730.18 ms. Allocated memory was 52.4 MB in the beginning and 302.0 MB in the end (delta: 249.6 MB). Free memory was 28.4 MB in the beginning and 141.4 MB in the end (delta: -112.9 MB). Peak memory consumption was 137.4 MB. Max. memory is 16.1 GB. [2021-08-25 20:43:32,495 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 52.4 MB. Free memory was 34.4 MB in the beginning and 34.4 MB in the end (delta: 33.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-25 20:43:32,496 INFO L168 Benchmark]: CACSL2BoogieTranslator took 398.62 ms. Allocated memory was 52.4 MB in the beginning and 69.2 MB in the end (delta: 16.8 MB). Free memory was 28.2 MB in the beginning and 43.8 MB in the end (delta: -15.6 MB). Peak memory consumption was 4.7 MB. Max. memory is 16.1 GB. [2021-08-25 20:43:32,496 INFO L168 Benchmark]: Boogie Procedure Inliner took 62.22 ms. Allocated memory is still 69.2 MB. Free memory was 43.8 MB in the beginning and 38.4 MB in the end (delta: 5.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-25 20:43:32,496 INFO L168 Benchmark]: Boogie Preprocessor took 42.89 ms. Allocated memory is still 69.2 MB. Free memory was 38.4 MB in the beginning and 34.1 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-25 20:43:32,496 INFO L168 Benchmark]: RCFGBuilder took 818.73 ms. Allocated memory was 69.2 MB in the beginning and 86.0 MB in the end (delta: 16.8 MB). Free memory was 34.1 MB in the beginning and 51.7 MB in the end (delta: -17.6 MB). Peak memory consumption was 18.5 MB. Max. memory is 16.1 GB. [2021-08-25 20:43:32,496 INFO L168 Benchmark]: TraceAbstraction took 8320.57 ms. Allocated memory was 86.0 MB in the beginning and 302.0 MB in the end (delta: 216.0 MB). Free memory was 51.2 MB in the beginning and 156.2 MB in the end (delta: -105.0 MB). Peak memory consumption was 138.9 MB. Max. memory is 16.1 GB. [2021-08-25 20:43:32,497 INFO L168 Benchmark]: Witness Printer took 81.33 ms. Allocated memory is still 302.0 MB. Free memory was 155.1 MB in the beginning and 141.4 MB in the end (delta: 13.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-08-25 20:43:32,498 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 52.4 MB. Free memory was 34.4 MB in the beginning and 34.4 MB in the end (delta: 33.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 398.62 ms. Allocated memory was 52.4 MB in the beginning and 69.2 MB in the end (delta: 16.8 MB). Free memory was 28.2 MB in the beginning and 43.8 MB in the end (delta: -15.6 MB). Peak memory consumption was 4.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 62.22 ms. Allocated memory is still 69.2 MB. Free memory was 43.8 MB in the beginning and 38.4 MB in the end (delta: 5.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 42.89 ms. Allocated memory is still 69.2 MB. Free memory was 38.4 MB in the beginning and 34.1 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 818.73 ms. Allocated memory was 69.2 MB in the beginning and 86.0 MB in the end (delta: 16.8 MB). Free memory was 34.1 MB in the beginning and 51.7 MB in the end (delta: -17.6 MB). Peak memory consumption was 18.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 8320.57 ms. Allocated memory was 86.0 MB in the beginning and 302.0 MB in the end (delta: 216.0 MB). Free memory was 51.2 MB in the beginning and 156.2 MB in the end (delta: -105.0 MB). Peak memory consumption was 138.9 MB. Max. memory is 16.1 GB. * Witness Printer took 81.33 ms. Allocated memory is still 302.0 MB. Free memory was 155.1 MB in the beginning and 141.4 MB in the end (delta: 13.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 530]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 227 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 8274.4ms, OverallIterations: 12, TraceHistogramMax: 6, EmptinessCheckTime: 68.1ms, AutomataDifference: 4655.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 525.6ms, InitialAbstractionConstructionTime: 8.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1567 SDtfs, 1976 SDslu, 221 SDs, 0 SdLazy, 4789 SolverSat, 842 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3123.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 511 GetRequests, 491 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 62.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=2410occurred in iteration=9, InterpolantAutomatonStates: 40, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 284.8ms AutomataMinimizationTime, 12 MinimizatonAttempts, 1454 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 51 NumberOfFragments, 527 HoareAnnotationTreeSize, 3 FomulaSimplifications, 2398 FormulaSimplificationTreeSizeReduction, 68.6ms HoareSimplificationTime, 3 FomulaSimplificationsInter, 802 FormulaSimplificationTreeSizeReductionInter, 450.9ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 114.8ms SsaConstructionTime, 294.3ms SatisfiabilityAnalysisTime, 1537.9ms InterpolantComputationTime, 2621 NumberOfCodeBlocks, 2621 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 2607 ConstructedInterpolants, 0 QuantifiedInterpolants, 3956 SizeOfPredicates, 0 NumberOfNonLiveVariables, 895 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 14 InterpolantComputations, 12 PerfectInterpolantSequences, 1594/1612 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 616]: Loop Invariant Derived loop invariant: (((((((((((((a25 == 1 && a11 == 0) && a19 == 1) || ((((9 <= a28 && a11 == 1) && a25 <= 0) || (9 <= a28 && (((a25 == 1 && a11 == 1) && a19 == 1) || ((a25 == 1 && a28 <= 9) && a11 == 1)))) && a19 <= 0)) || ((((9 <= a28 && a28 <= 9) && a11 == 0) && a19 == 1) && a25 <= 0)) || ((((a17 == 8 && a11 == 1) && a21 == 1) && a19 == 1) && a25 <= 0)) || ((((10 <= a28 && a25 == 1) && a11 == 0) && a28 <= 10) && a19 <= 0)) || (10 <= a28 && (((9 <= a28 && a11 == 1) && a25 <= 0) || (9 <= a28 && (((a25 == 1 && a11 == 1) && a19 == 1) || ((a25 == 1 && a28 <= 9) && a11 == 1)))))) || (((a17 == 8 && a21 == 1) && (((a25 == 1 && a11 == 1) && a19 == 1) || ((a25 == 1 && a28 <= 9) && a11 == 1))) && a19 == 1)) || ((((a25 == 1 && a11 == 1) && a19 == 1) || ((a25 == 1 && a28 <= 9) && a11 == 1)) && a28 <= 7)) || (((a25 == 1 && a11 == 0) && a28 <= 7) && a19 <= 0)) || ((a11 == 1 && a25 <= 0) && a19 <= 0)) || ((a11 == 0 && a25 <= 0) && a19 <= 0)) || ((((((a17 == 8 && 9 <= a28) && a21 == 1) && a11 == 0) && a28 <= 10) && a19 == 1) && a25 <= 0)) || (((a11 == 0 && a19 == 1) && a28 <= 7) && a25 <= 0) - InvariantResult [Line: 610]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: (((((((((((((a25 == 1 && a11 == 0) && a19 == 1) || ((((9 <= a28 && a11 == 1) && a25 <= 0) || (9 <= a28 && (((a25 == 1 && a11 == 1) && a19 == 1) || ((a25 == 1 && a28 <= 9) && a11 == 1)))) && a19 <= 0)) || ((((9 <= a28 && a28 <= 9) && a11 == 0) && a19 == 1) && a25 <= 0)) || ((((a17 == 8 && a11 == 1) && a21 == 1) && a19 == 1) && a25 <= 0)) || ((((10 <= a28 && a25 == 1) && a11 == 0) && a28 <= 10) && a19 <= 0)) || (10 <= a28 && (((9 <= a28 && a11 == 1) && a25 <= 0) || (9 <= a28 && (((a25 == 1 && a11 == 1) && a19 == 1) || ((a25 == 1 && a28 <= 9) && a11 == 1)))))) || (((a17 == 8 && a21 == 1) && (((a25 == 1 && a11 == 1) && a19 == 1) || ((a25 == 1 && a28 <= 9) && a11 == 1))) && a19 == 1)) || ((((a25 == 1 && a11 == 1) && a19 == 1) || ((a25 == 1 && a28 <= 9) && a11 == 1)) && a28 <= 7)) || (((a25 == 1 && a11 == 0) && a28 <= 7) && a19 <= 0)) || ((a11 == 1 && a25 <= 0) && a19 <= 0)) || ((a11 == 0 && a25 <= 0) && a19 <= 0)) || ((((((a17 == 8 && 9 <= a28) && a21 == 1) && a11 == 0) && a28 <= 10) && a19 == 1) && a25 <= 0)) || (((a11 == 0 && a19 == 1) && a28 <= 7) && a25 <= 0) RESULT: Ultimate proved your program to be correct! [2021-08-25 20:43:32,532 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...