./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem10_label00.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 54858612 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem10_label00.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c102e3193db159d14eda460fea130fedf3e450e3 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-5485861 [2020-10-25 20:25:48,855 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-25 20:25:48,859 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-25 20:25:48,923 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-25 20:25:48,924 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-25 20:25:48,930 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-25 20:25:48,933 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-25 20:25:48,940 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-25 20:25:48,945 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-25 20:25:48,952 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-25 20:25:48,954 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-25 20:25:48,960 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-25 20:25:48,960 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-25 20:25:48,965 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-25 20:25:48,967 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-25 20:25:48,969 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-25 20:25:48,971 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-25 20:25:48,974 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-25 20:25:48,978 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-25 20:25:48,987 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-25 20:25:48,990 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-25 20:25:48,991 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-25 20:25:48,995 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-25 20:25:48,996 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-25 20:25:49,006 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-25 20:25:49,006 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-25 20:25:49,007 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-25 20:25:49,009 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-25 20:25:49,010 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-25 20:25:49,011 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-25 20:25:49,012 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-25 20:25:49,013 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-25 20:25:49,016 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-25 20:25:49,017 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-25 20:25:49,020 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-25 20:25:49,020 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-25 20:25:49,021 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-25 20:25:49,022 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-25 20:25:49,023 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-25 20:25:49,027 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-25 20:25:49,028 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-25 20:25:49,030 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-25 20:25:49,084 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-25 20:25:49,084 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-25 20:25:49,088 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-25 20:25:49,088 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-25 20:25:49,089 INFO L138 SettingsManager]: * Use SBE=true [2020-10-25 20:25:49,089 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-25 20:25:49,089 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-25 20:25:49,090 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-25 20:25:49,090 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-25 20:25:49,090 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-25 20:25:49,091 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-25 20:25:49,092 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-25 20:25:49,092 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-25 20:25:49,092 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-25 20:25:49,092 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-25 20:25:49,093 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-25 20:25:49,093 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-25 20:25:49,093 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-25 20:25:49,094 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-25 20:25:49,094 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-25 20:25:49,094 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-25 20:25:49,095 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 20:25:49,095 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-25 20:25:49,095 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-25 20:25:49,096 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-25 20:25:49,096 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-25 20:25:49,096 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-25 20:25:49,096 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-25 20:25:49,097 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-25 20:25:49,097 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c102e3193db159d14eda460fea130fedf3e450e3 [2020-10-25 20:25:49,519 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-25 20:25:49,546 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-25 20:25:49,549 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-25 20:25:49,551 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-25 20:25:49,552 INFO L275 PluginConnector]: CDTParser initialized [2020-10-25 20:25:49,553 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem10_label00.c [2020-10-25 20:25:49,635 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a6f45e53a/2ca8bf1b4fd14c5989f5e3397e0c2ccc/FLAG454c03075 [2020-10-25 20:25:50,341 INFO L306 CDTParser]: Found 1 translation units. [2020-10-25 20:25:50,344 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem10_label00.c [2020-10-25 20:25:50,369 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a6f45e53a/2ca8bf1b4fd14c5989f5e3397e0c2ccc/FLAG454c03075 [2020-10-25 20:25:50,573 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a6f45e53a/2ca8bf1b4fd14c5989f5e3397e0c2ccc [2020-10-25 20:25:50,577 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-25 20:25:50,584 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-25 20:25:50,586 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-25 20:25:50,586 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-25 20:25:50,590 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-25 20:25:50,591 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 08:25:50" (1/1) ... [2020-10-25 20:25:50,596 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32780372 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:25:50, skipping insertion in model container [2020-10-25 20:25:50,597 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 08:25:50" (1/1) ... [2020-10-25 20:25:50,606 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-25 20:25:50,678 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-25 20:25:51,234 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 20:25:51,254 INFO L203 MainTranslator]: Completed pre-run [2020-10-25 20:25:51,371 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 20:25:51,389 INFO L208 MainTranslator]: Completed translation [2020-10-25 20:25:51,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:25:51 WrapperNode [2020-10-25 20:25:51,390 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-25 20:25:51,392 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-25 20:25:51,392 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-25 20:25:51,392 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-25 20:25:51,401 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:25:51" (1/1) ... [2020-10-25 20:25:51,423 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:25:51" (1/1) ... [2020-10-25 20:25:51,501 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-25 20:25:51,503 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-25 20:25:51,503 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-25 20:25:51,503 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-25 20:25:51,514 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:25:51" (1/1) ... [2020-10-25 20:25:51,514 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:25:51" (1/1) ... [2020-10-25 20:25:51,527 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:25:51" (1/1) ... [2020-10-25 20:25:51,527 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:25:51" (1/1) ... [2020-10-25 20:25:51,572 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:25:51" (1/1) ... [2020-10-25 20:25:51,595 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:25:51" (1/1) ... [2020-10-25 20:25:51,610 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:25:51" (1/1) ... [2020-10-25 20:25:51,618 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-25 20:25:51,620 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-25 20:25:51,620 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-25 20:25:51,620 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-25 20:25:51,621 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:25:51" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 20:25:51,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-25 20:25:51,697 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-25 20:25:51,697 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-25 20:25:51,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-25 20:25:53,254 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-25 20:25:53,254 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-10-25 20:25:53,257 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 08:25:53 BoogieIcfgContainer [2020-10-25 20:25:53,257 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-25 20:25:53,259 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-25 20:25:53,260 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-25 20:25:53,264 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-25 20:25:53,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 08:25:50" (1/3) ... [2020-10-25 20:25:53,266 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46cb11a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 08:25:53, skipping insertion in model container [2020-10-25 20:25:53,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:25:51" (2/3) ... [2020-10-25 20:25:53,267 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46cb11a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 08:25:53, skipping insertion in model container [2020-10-25 20:25:53,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 08:25:53" (3/3) ... [2020-10-25 20:25:53,269 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label00.c [2020-10-25 20:25:53,282 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-25 20:25:53,289 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-25 20:25:53,305 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-25 20:25:53,341 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-25 20:25:53,342 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-25 20:25:53,342 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-25 20:25:53,342 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-25 20:25:53,343 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-25 20:25:53,343 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-25 20:25:53,344 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-25 20:25:53,344 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-25 20:25:53,402 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-10-25 20:25:53,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-10-25 20:25:53,422 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:25:53,423 INFO L422 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] [2020-10-25 20:25:53,425 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:25:53,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:25:53,432 INFO L82 PathProgramCache]: Analyzing trace with hash 433832817, now seen corresponding path program 1 times [2020-10-25 20:25:53,443 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:25:53,444 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024657764] [2020-10-25 20:25:53,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:25:53,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:25:53,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 20:25:53,855 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024657764] [2020-10-25 20:25:53,856 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:25:53,856 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-25 20:25:53,860 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334428525] [2020-10-25 20:25:53,869 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:25:53,869 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:25:53,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:25:53,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:25:53,893 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 3 states. [2020-10-25 20:25:55,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:25:55,027 INFO L93 Difference]: Finished difference Result 553 states and 967 transitions. [2020-10-25 20:25:55,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:25:55,030 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2020-10-25 20:25:55,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:25:55,050 INFO L225 Difference]: With dead ends: 553 [2020-10-25 20:25:55,050 INFO L226 Difference]: Without dead ends: 282 [2020-10-25 20:25:55,056 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:25:55,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2020-10-25 20:25:55,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 282. [2020-10-25 20:25:55,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282 states. [2020-10-25 20:25:55,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 432 transitions. [2020-10-25 20:25:55,124 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 432 transitions. Word has length 47 [2020-10-25 20:25:55,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:25:55,124 INFO L481 AbstractCegarLoop]: Abstraction has 282 states and 432 transitions. [2020-10-25 20:25:55,124 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:25:55,124 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 432 transitions. [2020-10-25 20:25:55,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-10-25 20:25:55,129 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:25:55,130 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 20:25:55,130 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-25 20:25:55,130 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:25:55,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:25:55,132 INFO L82 PathProgramCache]: Analyzing trace with hash -1181403863, now seen corresponding path program 1 times [2020-10-25 20:25:55,132 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:25:55,132 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364608098] [2020-10-25 20:25:55,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:25:55,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:25:55,284 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 20:25:55,285 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364608098] [2020-10-25 20:25:55,285 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:25:55,286 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-25 20:25:55,286 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082115774] [2020-10-25 20:25:55,288 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:25:55,288 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:25:55,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:25:55,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:25:55,290 INFO L87 Difference]: Start difference. First operand 282 states and 432 transitions. Second operand 3 states. [2020-10-25 20:25:56,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:25:56,234 INFO L93 Difference]: Finished difference Result 701 states and 1076 transitions. [2020-10-25 20:25:56,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:25:56,235 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 116 [2020-10-25 20:25:56,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:25:56,243 INFO L225 Difference]: With dead ends: 701 [2020-10-25 20:25:56,244 INFO L226 Difference]: Without dead ends: 421 [2020-10-25 20:25:56,251 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:25:56,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2020-10-25 20:25:56,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 421. [2020-10-25 20:25:56,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 421 states. [2020-10-25 20:25:56,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 596 transitions. [2020-10-25 20:25:56,309 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 596 transitions. Word has length 116 [2020-10-25 20:25:56,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:25:56,309 INFO L481 AbstractCegarLoop]: Abstraction has 421 states and 596 transitions. [2020-10-25 20:25:56,309 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:25:56,310 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 596 transitions. [2020-10-25 20:25:56,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2020-10-25 20:25:56,319 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:25:56,320 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 20:25:56,320 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-25 20:25:56,320 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:25:56,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:25:56,321 INFO L82 PathProgramCache]: Analyzing trace with hash 940315672, now seen corresponding path program 1 times [2020-10-25 20:25:56,322 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:25:56,322 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976318136] [2020-10-25 20:25:56,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:25:56,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:25:56,561 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 20:25:56,562 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976318136] [2020-10-25 20:25:56,563 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:25:56,563 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 20:25:56,563 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114047461] [2020-10-25 20:25:56,565 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:25:56,566 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:25:56,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:25:56,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:25:56,574 INFO L87 Difference]: Start difference. First operand 421 states and 596 transitions. Second operand 3 states. [2020-10-25 20:25:57,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:25:57,449 INFO L93 Difference]: Finished difference Result 1257 states and 1783 transitions. [2020-10-25 20:25:57,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:25:57,454 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 122 [2020-10-25 20:25:57,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:25:57,461 INFO L225 Difference]: With dead ends: 1257 [2020-10-25 20:25:57,462 INFO L226 Difference]: Without dead ends: 838 [2020-10-25 20:25:57,464 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:25:57,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2020-10-25 20:25:57,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 699. [2020-10-25 20:25:57,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 699 states. [2020-10-25 20:25:57,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 924 transitions. [2020-10-25 20:25:57,493 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 924 transitions. Word has length 122 [2020-10-25 20:25:57,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:25:57,494 INFO L481 AbstractCegarLoop]: Abstraction has 699 states and 924 transitions. [2020-10-25 20:25:57,494 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:25:57,494 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 924 transitions. [2020-10-25 20:25:57,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-10-25 20:25:57,498 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:25:57,499 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 20:25:57,499 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-25 20:25:57,499 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:25:57,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:25:57,500 INFO L82 PathProgramCache]: Analyzing trace with hash -1649425292, now seen corresponding path program 1 times [2020-10-25 20:25:57,501 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:25:57,501 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331614209] [2020-10-25 20:25:57,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:25:57,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:25:57,622 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 20:25:57,623 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331614209] [2020-10-25 20:25:57,623 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:25:57,623 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-25 20:25:57,623 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310377283] [2020-10-25 20:25:57,625 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:25:57,625 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:25:57,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:25:57,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:25:57,630 INFO L87 Difference]: Start difference. First operand 699 states and 924 transitions. Second operand 3 states. [2020-10-25 20:25:58,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:25:58,498 INFO L93 Difference]: Finished difference Result 1674 states and 2225 transitions. [2020-10-25 20:25:58,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:25:58,498 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 133 [2020-10-25 20:25:58,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:25:58,506 INFO L225 Difference]: With dead ends: 1674 [2020-10-25 20:25:58,506 INFO L226 Difference]: Without dead ends: 977 [2020-10-25 20:25:58,508 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:25:58,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 977 states. [2020-10-25 20:25:58,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 977 to 977. [2020-10-25 20:25:58,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 977 states. [2020-10-25 20:25:58,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 977 states to 977 states and 1168 transitions. [2020-10-25 20:25:58,539 INFO L78 Accepts]: Start accepts. Automaton has 977 states and 1168 transitions. Word has length 133 [2020-10-25 20:25:58,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:25:58,541 INFO L481 AbstractCegarLoop]: Abstraction has 977 states and 1168 transitions. [2020-10-25 20:25:58,541 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:25:58,541 INFO L276 IsEmpty]: Start isEmpty. Operand 977 states and 1168 transitions. [2020-10-25 20:25:58,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-10-25 20:25:58,545 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:25:58,545 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 20:25:58,546 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-25 20:25:58,546 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:25:58,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:25:58,547 INFO L82 PathProgramCache]: Analyzing trace with hash 1821976919, now seen corresponding path program 1 times [2020-10-25 20:25:58,548 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:25:58,548 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230382771] [2020-10-25 20:25:58,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:25:58,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:25:58,868 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 20:25:58,868 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230382771] [2020-10-25 20:25:58,869 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:25:58,869 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 20:25:58,869 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547321184] [2020-10-25 20:25:58,870 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-25 20:25:58,870 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:25:58,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-25 20:25:58,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-25 20:25:58,873 INFO L87 Difference]: Start difference. First operand 977 states and 1168 transitions. Second operand 4 states. [2020-10-25 20:25:59,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:25:59,833 INFO L93 Difference]: Finished difference Result 2114 states and 2506 transitions. [2020-10-25 20:25:59,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-25 20:25:59,834 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-10-25 20:25:59,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:25:59,846 INFO L225 Difference]: With dead ends: 2114 [2020-10-25 20:25:59,846 INFO L226 Difference]: Without dead ends: 1139 [2020-10-25 20:25:59,848 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-25 20:25:59,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1139 states. [2020-10-25 20:25:59,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1139 to 1116. [2020-10-25 20:25:59,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1116 states. [2020-10-25 20:25:59,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1116 states to 1116 states and 1312 transitions. [2020-10-25 20:25:59,881 INFO L78 Accepts]: Start accepts. Automaton has 1116 states and 1312 transitions. Word has length 160 [2020-10-25 20:25:59,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:25:59,881 INFO L481 AbstractCegarLoop]: Abstraction has 1116 states and 1312 transitions. [2020-10-25 20:25:59,881 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-25 20:25:59,882 INFO L276 IsEmpty]: Start isEmpty. Operand 1116 states and 1312 transitions. [2020-10-25 20:25:59,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-10-25 20:25:59,885 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:25:59,886 INFO L422 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 20:25:59,886 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-25 20:25:59,887 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:25:59,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:25:59,888 INFO L82 PathProgramCache]: Analyzing trace with hash 202349445, now seen corresponding path program 1 times [2020-10-25 20:25:59,888 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:25:59,888 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167504175] [2020-10-25 20:25:59,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:25:59,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:26:00,082 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 154 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 20:26:00,083 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167504175] [2020-10-25 20:26:00,085 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:26:00,085 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 20:26:00,085 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875555974] [2020-10-25 20:26:00,086 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:26:00,087 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:26:00,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:26:00,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:26:00,090 INFO L87 Difference]: Start difference. First operand 1116 states and 1312 transitions. Second operand 3 states. [2020-10-25 20:26:01,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:26:01,070 INFO L93 Difference]: Finished difference Result 2369 states and 2857 transitions. [2020-10-25 20:26:01,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:26:01,071 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 199 [2020-10-25 20:26:01,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:26:01,080 INFO L225 Difference]: With dead ends: 2369 [2020-10-25 20:26:01,081 INFO L226 Difference]: Without dead ends: 1394 [2020-10-25 20:26:01,083 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:26:01,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1394 states. [2020-10-25 20:26:01,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1394 to 1255. [2020-10-25 20:26:01,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1255 states. [2020-10-25 20:26:01,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 1461 transitions. [2020-10-25 20:26:01,123 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 1461 transitions. Word has length 199 [2020-10-25 20:26:01,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:26:01,128 INFO L481 AbstractCegarLoop]: Abstraction has 1255 states and 1461 transitions. [2020-10-25 20:26:01,128 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:26:01,129 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 1461 transitions. [2020-10-25 20:26:01,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2020-10-25 20:26:01,133 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:26:01,134 INFO L422 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 20:26:01,134 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-25 20:26:01,135 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:26:01,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:26:01,136 INFO L82 PathProgramCache]: Analyzing trace with hash -1949978756, now seen corresponding path program 1 times [2020-10-25 20:26:01,136 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:26:01,136 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555313689] [2020-10-25 20:26:01,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:26:01,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:26:01,351 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2020-10-25 20:26:01,352 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555313689] [2020-10-25 20:26:01,352 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:26:01,352 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 20:26:01,352 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234266574] [2020-10-25 20:26:01,353 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:26:01,353 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:26:01,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:26:01,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:26:01,354 INFO L87 Difference]: Start difference. First operand 1255 states and 1461 transitions. Second operand 3 states. [2020-10-25 20:26:02,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:26:02,148 INFO L93 Difference]: Finished difference Result 1813 states and 2105 transitions. [2020-10-25 20:26:02,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:26:02,149 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 221 [2020-10-25 20:26:02,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:26:02,159 INFO L225 Difference]: With dead ends: 1813 [2020-10-25 20:26:02,159 INFO L226 Difference]: Without dead ends: 1811 [2020-10-25 20:26:02,160 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:26:02,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1811 states. [2020-10-25 20:26:02,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1811 to 1255. [2020-10-25 20:26:02,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1255 states. [2020-10-25 20:26:02,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 1461 transitions. [2020-10-25 20:26:02,200 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 1461 transitions. Word has length 221 [2020-10-25 20:26:02,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:26:02,200 INFO L481 AbstractCegarLoop]: Abstraction has 1255 states and 1461 transitions. [2020-10-25 20:26:02,201 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:26:02,201 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 1461 transitions. [2020-10-25 20:26:02,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2020-10-25 20:26:02,207 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:26:02,208 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 20:26:02,208 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-25 20:26:02,208 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:26:02,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:26:02,209 INFO L82 PathProgramCache]: Analyzing trace with hash 1519876321, now seen corresponding path program 1 times [2020-10-25 20:26:02,210 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:26:02,210 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315342566] [2020-10-25 20:26:02,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:26:02,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:26:02,692 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 290 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2020-10-25 20:26:02,693 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315342566] [2020-10-25 20:26:02,693 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:26:02,693 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-25 20:26:02,693 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561079656] [2020-10-25 20:26:02,694 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-25 20:26:02,694 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:26:02,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-25 20:26:02,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2020-10-25 20:26:02,695 INFO L87 Difference]: Start difference. First operand 1255 states and 1461 transitions. Second operand 7 states. [2020-10-25 20:26:03,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:26:03,624 INFO L93 Difference]: Finished difference Result 2424 states and 2831 transitions. [2020-10-25 20:26:03,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-25 20:26:03,626 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 310 [2020-10-25 20:26:03,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:26:03,633 INFO L225 Difference]: With dead ends: 2424 [2020-10-25 20:26:03,634 INFO L226 Difference]: Without dead ends: 1255 [2020-10-25 20:26:03,636 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2020-10-25 20:26:03,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1255 states. [2020-10-25 20:26:03,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1255 to 1255. [2020-10-25 20:26:03,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1255 states. [2020-10-25 20:26:03,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 1455 transitions. [2020-10-25 20:26:03,669 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 1455 transitions. Word has length 310 [2020-10-25 20:26:03,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:26:03,669 INFO L481 AbstractCegarLoop]: Abstraction has 1255 states and 1455 transitions. [2020-10-25 20:26:03,669 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-25 20:26:03,670 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 1455 transitions. [2020-10-25 20:26:03,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2020-10-25 20:26:03,677 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:26:03,677 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 20:26:03,677 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-25 20:26:03,678 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:26:03,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:26:03,678 INFO L82 PathProgramCache]: Analyzing trace with hash -1455838341, now seen corresponding path program 1 times [2020-10-25 20:26:03,679 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:26:03,679 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511187346] [2020-10-25 20:26:03,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:26:03,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:26:03,961 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2020-10-25 20:26:03,961 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511187346] [2020-10-25 20:26:03,962 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:26:03,962 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 20:26:03,962 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306713224] [2020-10-25 20:26:03,963 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:26:03,963 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:26:03,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:26:03,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:26:03,964 INFO L87 Difference]: Start difference. First operand 1255 states and 1455 transitions. Second operand 3 states. [2020-10-25 20:26:04,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:26:04,728 INFO L93 Difference]: Finished difference Result 2647 states and 3142 transitions. [2020-10-25 20:26:04,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:26:04,729 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 346 [2020-10-25 20:26:04,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:26:04,740 INFO L225 Difference]: With dead ends: 2647 [2020-10-25 20:26:04,741 INFO L226 Difference]: Without dead ends: 1533 [2020-10-25 20:26:04,743 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:26:04,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1533 states. [2020-10-25 20:26:04,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1533 to 1394. [2020-10-25 20:26:04,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1394 states. [2020-10-25 20:26:04,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1394 states to 1394 states and 1609 transitions. [2020-10-25 20:26:04,787 INFO L78 Accepts]: Start accepts. Automaton has 1394 states and 1609 transitions. Word has length 346 [2020-10-25 20:26:04,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:26:04,788 INFO L481 AbstractCegarLoop]: Abstraction has 1394 states and 1609 transitions. [2020-10-25 20:26:04,788 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:26:04,789 INFO L276 IsEmpty]: Start isEmpty. Operand 1394 states and 1609 transitions. [2020-10-25 20:26:04,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2020-10-25 20:26:04,797 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:26:04,798 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 20:26:04,798 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-25 20:26:04,798 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:26:04,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:26:04,799 INFO L82 PathProgramCache]: Analyzing trace with hash -1134453580, now seen corresponding path program 1 times [2020-10-25 20:26:04,800 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:26:04,800 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624899986] [2020-10-25 20:26:04,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:26:04,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:26:05,480 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 334 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 20:26:05,481 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624899986] [2020-10-25 20:26:05,481 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1290228384] [2020-10-25 20:26:05,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-25 20:26:05,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:26:05,667 INFO L263 TraceCheckSpWp]: Trace formula consists of 493 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-25 20:26:05,704 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 20:26:06,004 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 312 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2020-10-25 20:26:06,005 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-25 20:26:06,005 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2020-10-25 20:26:06,006 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517733373] [2020-10-25 20:26:06,006 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:26:06,007 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:26:06,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:26:06,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-25 20:26:06,008 INFO L87 Difference]: Start difference. First operand 1394 states and 1609 transitions. Second operand 3 states. [2020-10-25 20:26:06,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:26:06,872 INFO L93 Difference]: Finished difference Result 3481 states and 4040 transitions. [2020-10-25 20:26:06,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:26:06,873 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 347 [2020-10-25 20:26:06,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:26:06,885 INFO L225 Difference]: With dead ends: 3481 [2020-10-25 20:26:06,885 INFO L226 Difference]: Without dead ends: 2228 [2020-10-25 20:26:06,888 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 351 GetRequests, 346 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-25 20:26:06,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2228 states. [2020-10-25 20:26:06,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2228 to 2228. [2020-10-25 20:26:06,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2228 states. [2020-10-25 20:26:06,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2228 states to 2228 states and 2518 transitions. [2020-10-25 20:26:06,956 INFO L78 Accepts]: Start accepts. Automaton has 2228 states and 2518 transitions. Word has length 347 [2020-10-25 20:26:06,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:26:06,957 INFO L481 AbstractCegarLoop]: Abstraction has 2228 states and 2518 transitions. [2020-10-25 20:26:06,957 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:26:06,957 INFO L276 IsEmpty]: Start isEmpty. Operand 2228 states and 2518 transitions. [2020-10-25 20:26:06,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2020-10-25 20:26:06,969 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:26:06,969 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 20:26:07,182 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-10-25 20:26:07,183 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:26:07,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:26:07,184 INFO L82 PathProgramCache]: Analyzing trace with hash -716983786, now seen corresponding path program 1 times [2020-10-25 20:26:07,184 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:26:07,185 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184501056] [2020-10-25 20:26:07,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:26:07,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:26:07,728 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 90 proven. 226 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2020-10-25 20:26:07,728 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184501056] [2020-10-25 20:26:07,728 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [916716107] [2020-10-25 20:26:07,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-25 20:26:07,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:26:07,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 508 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-25 20:26:07,913 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 20:26:08,062 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2020-10-25 20:26:08,063 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-25 20:26:08,063 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2020-10-25 20:26:08,064 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294893552] [2020-10-25 20:26:08,064 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:26:08,065 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:26:08,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:26:08,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-25 20:26:08,066 INFO L87 Difference]: Start difference. First operand 2228 states and 2518 transitions. Second operand 3 states. [2020-10-25 20:26:08,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:26:08,859 INFO L93 Difference]: Finished difference Result 4315 states and 4891 transitions. [2020-10-25 20:26:08,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:26:08,860 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 360 [2020-10-25 20:26:08,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:26:08,871 INFO L225 Difference]: With dead ends: 4315 [2020-10-25 20:26:08,872 INFO L226 Difference]: Without dead ends: 2228 [2020-10-25 20:26:08,875 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 364 GetRequests, 361 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-25 20:26:08,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2228 states. [2020-10-25 20:26:08,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2228 to 2089. [2020-10-25 20:26:08,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2089 states. [2020-10-25 20:26:08,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2089 states to 2089 states and 2280 transitions. [2020-10-25 20:26:08,923 INFO L78 Accepts]: Start accepts. Automaton has 2089 states and 2280 transitions. Word has length 360 [2020-10-25 20:26:08,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:26:08,924 INFO L481 AbstractCegarLoop]: Abstraction has 2089 states and 2280 transitions. [2020-10-25 20:26:08,924 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:26:08,929 INFO L276 IsEmpty]: Start isEmpty. Operand 2089 states and 2280 transitions. [2020-10-25 20:26:08,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 362 [2020-10-25 20:26:08,935 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:26:08,936 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 20:26:09,149 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-25 20:26:09,150 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:26:09,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:26:09,151 INFO L82 PathProgramCache]: Analyzing trace with hash 371774211, now seen corresponding path program 1 times [2020-10-25 20:26:09,151 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:26:09,152 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920298804] [2020-10-25 20:26:09,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:26:09,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:26:09,739 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2020-10-25 20:26:09,740 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920298804] [2020-10-25 20:26:09,740 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:26:09,740 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 20:26:09,740 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926451251] [2020-10-25 20:26:09,741 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-25 20:26:09,741 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:26:09,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-25 20:26:09,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-25 20:26:09,742 INFO L87 Difference]: Start difference. First operand 2089 states and 2280 transitions. Second operand 4 states. [2020-10-25 20:26:10,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:26:10,430 INFO L93 Difference]: Finished difference Result 3902 states and 4271 transitions. [2020-10-25 20:26:10,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-25 20:26:10,431 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 361 [2020-10-25 20:26:10,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:26:10,432 INFO L225 Difference]: With dead ends: 3902 [2020-10-25 20:26:10,432 INFO L226 Difference]: Without dead ends: 0 [2020-10-25 20:26:10,437 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-25 20:26:10,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-25 20:26:10,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-25 20:26:10,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-25 20:26:10,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-25 20:26:10,438 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 361 [2020-10-25 20:26:10,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:26:10,438 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-25 20:26:10,438 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-25 20:26:10,438 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-25 20:26:10,438 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-25 20:26:10,438 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-25 20:26:10,441 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-25 20:26:10,721 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 34 [2020-10-25 20:26:10,880 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 34 [2020-10-25 20:26:10,885 INFO L274 CegarLoopResult]: For program point L531(lines 531 574) no Hoare annotation was computed. [2020-10-25 20:26:10,885 INFO L274 CegarLoopResult]: For program point L432(lines 432 574) no Hoare annotation was computed. [2020-10-25 20:26:10,886 INFO L274 CegarLoopResult]: For program point L267(lines 267 574) no Hoare annotation was computed. [2020-10-25 20:26:10,886 INFO L274 CegarLoopResult]: For program point L201(line 201) no Hoare annotation was computed. [2020-10-25 20:26:10,886 INFO L274 CegarLoopResult]: For program point L168(line 168) no Hoare annotation was computed. [2020-10-25 20:26:10,886 INFO L274 CegarLoopResult]: For program point L135(line 135) no Hoare annotation was computed. [2020-10-25 20:26:10,886 INFO L274 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2020-10-25 20:26:10,886 INFO L274 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-10-25 20:26:10,886 INFO L274 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-10-25 20:26:10,886 INFO L274 CegarLoopResult]: For program point L565(lines 565 574) no Hoare annotation was computed. [2020-10-25 20:26:10,886 INFO L274 CegarLoopResult]: For program point L400(lines 400 574) no Hoare annotation was computed. [2020-10-25 20:26:10,886 INFO L274 CegarLoopResult]: For program point L367(lines 367 574) no Hoare annotation was computed. [2020-10-25 20:26:10,886 INFO L274 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-10-25 20:26:10,887 INFO L274 CegarLoopResult]: For program point L467(lines 467 574) no Hoare annotation was computed. [2020-10-25 20:26:10,887 INFO L274 CegarLoopResult]: For program point L203-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:26:10,887 INFO L274 CegarLoopResult]: For program point L170-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:26:10,887 INFO L274 CegarLoopResult]: For program point L137-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:26:10,887 INFO L274 CegarLoopResult]: For program point L104-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:26:10,887 INFO L274 CegarLoopResult]: For program point L71-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:26:10,887 INFO L274 CegarLoopResult]: For program point L38-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:26:10,887 INFO L274 CegarLoopResult]: For program point L501(lines 501 574) no Hoare annotation was computed. [2020-10-25 20:26:10,887 INFO L274 CegarLoopResult]: For program point L303(lines 303 574) no Hoare annotation was computed. [2020-10-25 20:26:10,887 INFO L274 CegarLoopResult]: For program point L204(line 204) no Hoare annotation was computed. [2020-10-25 20:26:10,887 INFO L274 CegarLoopResult]: For program point L171(line 171) no Hoare annotation was computed. [2020-10-25 20:26:10,888 INFO L274 CegarLoopResult]: For program point L138(line 138) no Hoare annotation was computed. [2020-10-25 20:26:10,888 INFO L274 CegarLoopResult]: For program point L105(line 105) no Hoare annotation was computed. [2020-10-25 20:26:10,888 INFO L274 CegarLoopResult]: For program point L72(line 72) no Hoare annotation was computed. [2020-10-25 20:26:10,888 INFO L274 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-10-25 20:26:10,888 INFO L274 CegarLoopResult]: For program point L337(lines 337 574) no Hoare annotation was computed. [2020-10-25 20:26:10,888 INFO L274 CegarLoopResult]: For program point L238(lines 238 574) no Hoare annotation was computed. [2020-10-25 20:26:10,888 INFO L274 CegarLoopResult]: For program point L536(lines 536 574) no Hoare annotation was computed. [2020-10-25 20:26:10,888 INFO L274 CegarLoopResult]: For program point L173-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:26:10,888 INFO L274 CegarLoopResult]: For program point L140-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:26:10,888 INFO L274 CegarLoopResult]: For program point L107-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:26:10,888 INFO L274 CegarLoopResult]: For program point L74-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:26:10,889 INFO L274 CegarLoopResult]: For program point L41-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:26:10,889 INFO L274 CegarLoopResult]: For program point L438(lines 438 574) no Hoare annotation was computed. [2020-10-25 20:26:10,889 INFO L274 CegarLoopResult]: For program point L405(lines 405 574) no Hoare annotation was computed. [2020-10-25 20:26:10,889 INFO L274 CegarLoopResult]: For program point L372(lines 372 574) no Hoare annotation was computed. [2020-10-25 20:26:10,889 INFO L274 CegarLoopResult]: For program point L273(lines 273 574) no Hoare annotation was computed. [2020-10-25 20:26:10,889 INFO L274 CegarLoopResult]: For program point L174(line 174) no Hoare annotation was computed. [2020-10-25 20:26:10,889 INFO L274 CegarLoopResult]: For program point L141(line 141) no Hoare annotation was computed. [2020-10-25 20:26:10,889 INFO L274 CegarLoopResult]: For program point L108(line 108) no Hoare annotation was computed. [2020-10-25 20:26:10,889 INFO L274 CegarLoopResult]: For program point L75(line 75) no Hoare annotation was computed. [2020-10-25 20:26:10,889 INFO L274 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-10-25 20:26:10,889 INFO L274 CegarLoopResult]: For program point L571(lines 571 574) no Hoare annotation was computed. [2020-10-25 20:26:10,889 INFO L274 CegarLoopResult]: For program point L241(lines 241 574) no Hoare annotation was computed. [2020-10-25 20:26:10,890 INFO L274 CegarLoopResult]: For program point L506(lines 506 574) no Hoare annotation was computed. [2020-10-25 20:26:10,890 INFO L274 CegarLoopResult]: For program point L473(lines 473 574) no Hoare annotation was computed. [2020-10-25 20:26:10,890 INFO L274 CegarLoopResult]: For program point L308(lines 308 574) no Hoare annotation was computed. [2020-10-25 20:26:10,890 INFO L274 CegarLoopResult]: For program point L176-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:26:10,890 INFO L274 CegarLoopResult]: For program point L143-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:26:10,890 INFO L274 CegarLoopResult]: For program point L110-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:26:10,890 INFO L274 CegarLoopResult]: For program point L77-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:26:10,890 INFO L274 CegarLoopResult]: For program point L44-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:26:10,890 INFO L274 CegarLoopResult]: For program point L342(lines 342 574) no Hoare annotation was computed. [2020-10-25 20:26:10,890 INFO L274 CegarLoopResult]: For program point L177(line 177) no Hoare annotation was computed. [2020-10-25 20:26:10,890 INFO L274 CegarLoopResult]: For program point L144(line 144) no Hoare annotation was computed. [2020-10-25 20:26:10,890 INFO L274 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-10-25 20:26:10,890 INFO L274 CegarLoopResult]: For program point L78(line 78) no Hoare annotation was computed. [2020-10-25 20:26:10,891 INFO L274 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-10-25 20:26:10,891 INFO L270 CegarLoopResult]: At program point L575(lines 22 576) the Hoare annotation is: (let ((.cse2 (<= ~a19~0 9)) (.cse0 (= 14 ~a4~0)) (.cse3 (= ~a10~0 0)) (.cse1 (= ~a12~0 0))) (or (and .cse0 (<= 4 ~a10~0) .cse1 .cse2) (and .cse0 (= ~a10~0 2) .cse1 .cse2) (and .cse0 .cse3 (<= (+ ~a1~0 551894) 0) .cse1 (= ~a19~0 6)) (and (= ~a10~0 3) .cse0 .cse1 .cse2) (and (= ~a10~0 1) .cse0 .cse1) (and (<= 8 ~a19~0) .cse0 .cse3 .cse1))) [2020-10-25 20:26:10,891 INFO L274 CegarLoopResult]: For program point L542(lines 542 574) no Hoare annotation was computed. [2020-10-25 20:26:10,891 INFO L274 CegarLoopResult]: For program point L410(lines 410 574) no Hoare annotation was computed. [2020-10-25 20:26:10,891 INFO L274 CegarLoopResult]: For program point L377(lines 377 574) no Hoare annotation was computed. [2020-10-25 20:26:10,891 INFO L274 CegarLoopResult]: For program point L212(lines 212 574) no Hoare annotation was computed. [2020-10-25 20:26:10,891 INFO L274 CegarLoopResult]: For program point L179-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:26:10,892 INFO L274 CegarLoopResult]: For program point L146-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:26:10,892 INFO L274 CegarLoopResult]: For program point L113-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:26:10,892 INFO L274 CegarLoopResult]: For program point L80-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:26:10,892 INFO L274 CegarLoopResult]: For program point L47-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:26:10,892 INFO L274 CegarLoopResult]: For program point L444(lines 444 574) no Hoare annotation was computed. [2020-10-25 20:26:10,892 INFO L274 CegarLoopResult]: For program point L279(lines 279 574) no Hoare annotation was computed. [2020-10-25 20:26:10,892 INFO L274 CegarLoopResult]: For program point L246(lines 246 574) no Hoare annotation was computed. [2020-10-25 20:26:10,892 INFO L274 CegarLoopResult]: For program point L180(line 180) no Hoare annotation was computed. [2020-10-25 20:26:10,892 INFO L274 CegarLoopResult]: For program point L147(line 147) no Hoare annotation was computed. [2020-10-25 20:26:10,892 INFO L274 CegarLoopResult]: For program point L114(line 114) no Hoare annotation was computed. [2020-10-25 20:26:10,892 INFO L274 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-10-25 20:26:10,892 INFO L274 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-10-25 20:26:10,893 INFO L274 CegarLoopResult]: For program point L511(lines 511 574) no Hoare annotation was computed. [2020-10-25 20:26:10,893 INFO L274 CegarLoopResult]: For program point L478(lines 478 574) no Hoare annotation was computed. [2020-10-25 20:26:10,893 INFO L277 CegarLoopResult]: At program point L578(lines 578 594) the Hoare annotation is: true [2020-10-25 20:26:10,893 INFO L274 CegarLoopResult]: For program point L380(lines 380 574) no Hoare annotation was computed. [2020-10-25 20:26:10,893 INFO L274 CegarLoopResult]: For program point L347(lines 347 574) no Hoare annotation was computed. [2020-10-25 20:26:10,893 INFO L274 CegarLoopResult]: For program point L314(lines 314 574) no Hoare annotation was computed. [2020-10-25 20:26:10,893 INFO L274 CegarLoopResult]: For program point L182-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:26:10,893 INFO L274 CegarLoopResult]: For program point L149-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:26:10,893 INFO L274 CegarLoopResult]: For program point L116-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:26:10,893 INFO L274 CegarLoopResult]: For program point L83-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:26:10,893 INFO L274 CegarLoopResult]: For program point L50-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:26:10,894 INFO L274 CegarLoopResult]: For program point L183(line 183) no Hoare annotation was computed. [2020-10-25 20:26:10,894 INFO L274 CegarLoopResult]: For program point L150(line 150) no Hoare annotation was computed. [2020-10-25 20:26:10,894 INFO L274 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-10-25 20:26:10,894 INFO L274 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed. [2020-10-25 20:26:10,894 INFO L274 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-10-25 20:26:10,894 INFO L274 CegarLoopResult]: For program point L547(lines 547 574) no Hoare annotation was computed. [2020-10-25 20:26:10,894 INFO L274 CegarLoopResult]: For program point L217(lines 217 574) no Hoare annotation was computed. [2020-10-25 20:26:10,894 INFO L274 CegarLoopResult]: For program point L416(lines 416 574) no Hoare annotation was computed. [2020-10-25 20:26:10,894 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-25 20:26:10,894 INFO L274 CegarLoopResult]: For program point L251(lines 251 574) no Hoare annotation was computed. [2020-10-25 20:26:10,894 INFO L274 CegarLoopResult]: For program point L185-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:26:10,894 INFO L274 CegarLoopResult]: For program point L152-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:26:10,894 INFO L274 CegarLoopResult]: For program point L119-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:26:10,895 INFO L274 CegarLoopResult]: For program point L86-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:26:10,895 INFO L274 CegarLoopResult]: For program point L53-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:26:10,895 INFO L274 CegarLoopResult]: For program point L516(lines 516 574) no Hoare annotation was computed. [2020-10-25 20:26:10,895 INFO L274 CegarLoopResult]: For program point L483(lines 483 574) no Hoare annotation was computed. [2020-10-25 20:26:10,895 INFO L274 CegarLoopResult]: For program point L450(lines 450 574) no Hoare annotation was computed. [2020-10-25 20:26:10,895 INFO L274 CegarLoopResult]: For program point L285(lines 285 574) no Hoare annotation was computed. [2020-10-25 20:26:10,895 INFO L274 CegarLoopResult]: For program point L186(line 186) no Hoare annotation was computed. [2020-10-25 20:26:10,895 INFO L274 CegarLoopResult]: For program point L153(line 153) no Hoare annotation was computed. [2020-10-25 20:26:10,895 INFO L274 CegarLoopResult]: For program point L120(line 120) no Hoare annotation was computed. [2020-10-25 20:26:10,895 INFO L274 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-10-25 20:26:10,895 INFO L274 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-10-25 20:26:10,895 INFO L274 CegarLoopResult]: For program point L550(lines 550 574) no Hoare annotation was computed. [2020-10-25 20:26:10,895 INFO L274 CegarLoopResult]: For program point L385(lines 385 574) no Hoare annotation was computed. [2020-10-25 20:26:10,896 INFO L274 CegarLoopResult]: For program point L319(lines 319 574) no Hoare annotation was computed. [2020-10-25 20:26:10,896 INFO L270 CegarLoopResult]: At program point L584-2(lines 584 593) the Hoare annotation is: (let ((.cse2 (<= ~a19~0 9)) (.cse0 (= 14 ~a4~0)) (.cse3 (= ~a10~0 0)) (.cse1 (= ~a12~0 0))) (or (and .cse0 (<= 4 ~a10~0) .cse1 .cse2) (and .cse0 (= ~a10~0 2) .cse1 .cse2) (and .cse0 .cse3 (<= (+ ~a1~0 551894) 0) .cse1 (= ~a19~0 6)) (and (= ~a10~0 3) .cse0 .cse1 .cse2) (and (= ~a10~0 1) .cse0 .cse1) (and (<= 8 ~a19~0) .cse0 .cse3 .cse1))) [2020-10-25 20:26:10,897 INFO L274 CegarLoopResult]: For program point L353(lines 353 574) no Hoare annotation was computed. [2020-10-25 20:26:10,897 INFO L274 CegarLoopResult]: For program point L188-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:26:10,897 INFO L274 CegarLoopResult]: For program point L155-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:26:10,897 INFO L274 CegarLoopResult]: For program point L122-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:26:10,897 INFO L274 CegarLoopResult]: For program point L89-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:26:10,898 INFO L274 CegarLoopResult]: For program point L23(lines 23 25) no Hoare annotation was computed. [2020-10-25 20:26:10,898 INFO L274 CegarLoopResult]: For program point L56-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:26:10,898 INFO L274 CegarLoopResult]: For program point L23-2(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:26:10,898 INFO L274 CegarLoopResult]: For program point L519(lines 519 574) no Hoare annotation was computed. [2020-10-25 20:26:10,898 INFO L274 CegarLoopResult]: For program point L288(lines 288 574) no Hoare annotation was computed. [2020-10-25 20:26:10,898 INFO L274 CegarLoopResult]: For program point L222(lines 222 574) no Hoare annotation was computed. [2020-10-25 20:26:10,898 INFO L274 CegarLoopResult]: For program point L189(line 189) no Hoare annotation was computed. [2020-10-25 20:26:10,898 INFO L274 CegarLoopResult]: For program point L156(line 156) no Hoare annotation was computed. [2020-10-25 20:26:10,898 INFO L274 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2020-10-25 20:26:10,899 INFO L274 CegarLoopResult]: For program point L90(line 90) no Hoare annotation was computed. [2020-10-25 20:26:10,899 INFO L274 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-10-25 20:26:10,899 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-10-25 20:26:10,899 INFO L274 CegarLoopResult]: For program point L421(lines 421 574) no Hoare annotation was computed. [2020-10-25 20:26:10,899 INFO L274 CegarLoopResult]: For program point L322(lines 322 574) no Hoare annotation was computed. [2020-10-25 20:26:10,899 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-25 20:26:10,900 INFO L274 CegarLoopResult]: For program point L256(lines 256 574) no Hoare annotation was computed. [2020-10-25 20:26:10,900 INFO L274 CegarLoopResult]: For program point L356(lines 356 574) no Hoare annotation was computed. [2020-10-25 20:26:10,900 INFO L274 CegarLoopResult]: For program point L191-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:26:10,900 INFO L274 CegarLoopResult]: For program point L158-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:26:10,900 INFO L274 CegarLoopResult]: For program point L125-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:26:10,900 INFO L274 CegarLoopResult]: For program point L92-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:26:10,900 INFO L274 CegarLoopResult]: For program point L59-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:26:10,901 INFO L274 CegarLoopResult]: For program point L26-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:26:10,901 INFO L274 CegarLoopResult]: For program point L489(lines 489 574) no Hoare annotation was computed. [2020-10-25 20:26:10,901 INFO L274 CegarLoopResult]: For program point L456(lines 456 574) no Hoare annotation was computed. [2020-10-25 20:26:10,901 INFO L274 CegarLoopResult]: For program point L390(lines 390 574) no Hoare annotation was computed. [2020-10-25 20:26:10,901 INFO L274 CegarLoopResult]: For program point L192(line 192) no Hoare annotation was computed. [2020-10-25 20:26:10,901 INFO L274 CegarLoopResult]: For program point L159(line 159) no Hoare annotation was computed. [2020-10-25 20:26:10,902 INFO L274 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed. [2020-10-25 20:26:10,902 INFO L274 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-10-25 20:26:10,902 INFO L274 CegarLoopResult]: For program point L60(line 60) no Hoare annotation was computed. [2020-10-25 20:26:10,902 INFO L274 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-10-25 20:26:10,903 INFO L274 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-10-25 20:26:10,903 INFO L274 CegarLoopResult]: For program point L556(lines 556 574) no Hoare annotation was computed. [2020-10-25 20:26:10,903 INFO L274 CegarLoopResult]: For program point L325(lines 325 574) no Hoare annotation was computed. [2020-10-25 20:26:10,904 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-25 20:26:10,904 INFO L274 CegarLoopResult]: For program point L359(lines 359 574) no Hoare annotation was computed. [2020-10-25 20:26:10,904 INFO L274 CegarLoopResult]: For program point L293(lines 293 574) no Hoare annotation was computed. [2020-10-25 20:26:10,904 INFO L274 CegarLoopResult]: For program point L227(lines 227 574) no Hoare annotation was computed. [2020-10-25 20:26:10,904 INFO L274 CegarLoopResult]: For program point L194-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:26:10,904 INFO L274 CegarLoopResult]: For program point L161-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:26:10,904 INFO L274 CegarLoopResult]: For program point L128-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:26:10,905 INFO L274 CegarLoopResult]: For program point L95-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:26:10,905 INFO L274 CegarLoopResult]: For program point L62-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:26:10,905 INFO L274 CegarLoopResult]: For program point L29-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:26:10,906 INFO L274 CegarLoopResult]: For program point L525(lines 525 574) no Hoare annotation was computed. [2020-10-25 20:26:10,906 INFO L274 CegarLoopResult]: For program point L195(line 195) no Hoare annotation was computed. [2020-10-25 20:26:10,906 INFO L274 CegarLoopResult]: For program point L162(line 162) no Hoare annotation was computed. [2020-10-25 20:26:10,906 INFO L274 CegarLoopResult]: For program point L129(line 129) no Hoare annotation was computed. [2020-10-25 20:26:10,906 INFO L274 CegarLoopResult]: For program point L96(line 96) no Hoare annotation was computed. [2020-10-25 20:26:10,907 INFO L274 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-10-25 20:26:10,907 INFO L274 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-10-25 20:26:10,907 INFO L274 CegarLoopResult]: For program point L559(lines 559 574) no Hoare annotation was computed. [2020-10-25 20:26:10,907 INFO L274 CegarLoopResult]: For program point L427(lines 427 574) no Hoare annotation was computed. [2020-10-25 20:26:10,907 INFO L274 CegarLoopResult]: For program point L328(lines 328 574) no Hoare annotation was computed. [2020-10-25 20:26:10,907 INFO L274 CegarLoopResult]: For program point L262(lines 262 574) no Hoare annotation was computed. [2020-10-25 20:26:10,908 INFO L274 CegarLoopResult]: For program point L395(lines 395 574) no Hoare annotation was computed. [2020-10-25 20:26:10,908 INFO L274 CegarLoopResult]: For program point L362(lines 362 574) no Hoare annotation was computed. [2020-10-25 20:26:10,908 INFO L274 CegarLoopResult]: For program point L197-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:26:10,908 INFO L274 CegarLoopResult]: For program point L164-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:26:10,908 INFO L274 CegarLoopResult]: For program point L131-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:26:10,908 INFO L274 CegarLoopResult]: For program point L98-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:26:10,909 INFO L274 CegarLoopResult]: For program point L65-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:26:10,909 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-25 20:26:10,909 INFO L274 CegarLoopResult]: For program point L32-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:26:10,909 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-25 20:26:10,909 INFO L274 CegarLoopResult]: For program point L528(lines 528 574) no Hoare annotation was computed. [2020-10-25 20:26:10,909 INFO L274 CegarLoopResult]: For program point L495(lines 495 574) no Hoare annotation was computed. [2020-10-25 20:26:10,910 INFO L274 CegarLoopResult]: For program point L462(lines 462 574) no Hoare annotation was computed. [2020-10-25 20:26:10,910 INFO L274 CegarLoopResult]: For program point L198(line 198) no Hoare annotation was computed. [2020-10-25 20:26:10,910 INFO L274 CegarLoopResult]: For program point L165(line 165) no Hoare annotation was computed. [2020-10-25 20:26:10,910 INFO L274 CegarLoopResult]: For program point L132(line 132) no Hoare annotation was computed. [2020-10-25 20:26:10,910 INFO L274 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2020-10-25 20:26:10,910 INFO L274 CegarLoopResult]: For program point L66(line 66) no Hoare annotation was computed. [2020-10-25 20:26:10,911 INFO L274 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-10-25 20:26:10,911 INFO L274 CegarLoopResult]: For program point L331(lines 331 574) no Hoare annotation was computed. [2020-10-25 20:26:10,911 INFO L274 CegarLoopResult]: For program point L298(lines 298 574) no Hoare annotation was computed. [2020-10-25 20:26:10,911 INFO L274 CegarLoopResult]: For program point L233(lines 233 574) no Hoare annotation was computed. [2020-10-25 20:26:10,911 INFO L274 CegarLoopResult]: For program point L200-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:26:10,911 INFO L274 CegarLoopResult]: For program point L167-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:26:10,912 INFO L274 CegarLoopResult]: For program point L134-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:26:10,912 INFO L274 CegarLoopResult]: For program point L101-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:26:10,912 INFO L274 CegarLoopResult]: For program point L68-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:26:10,912 INFO L274 CegarLoopResult]: For program point L35-1(lines 22 576) no Hoare annotation was computed. [2020-10-25 20:26:10,936 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 08:26:10 BoogieIcfgContainer [2020-10-25 20:26:10,936 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-25 20:26:10,937 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-25 20:26:10,937 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-25 20:26:10,937 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-25 20:26:10,938 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 08:25:53" (3/4) ... [2020-10-25 20:26:10,942 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-25 20:26:10,965 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-10-25 20:26:10,967 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-25 20:26:10,968 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-25 20:26:10,969 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-25 20:26:11,171 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-25 20:26:11,171 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-25 20:26:11,172 INFO L168 Benchmark]: Toolchain (without parser) took 20593.11 ms. Allocated memory was 37.7 MB in the beginning and 406.8 MB in the end (delta: 369.1 MB). Free memory was 22.5 MB in the beginning and 213.8 MB in the end (delta: -191.3 MB). Peak memory consumption was 176.6 MB. Max. memory is 16.1 GB. [2020-10-25 20:26:11,173 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 37.7 MB. Free memory was 23.1 MB in the beginning and 23.0 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 20:26:11,173 INFO L168 Benchmark]: CACSL2BoogieTranslator took 805.34 ms. Allocated memory was 37.7 MB in the beginning and 46.1 MB in the end (delta: 8.4 MB). Free memory was 21.8 MB in the beginning and 23.9 MB in the end (delta: -2.1 MB). Peak memory consumption was 15.3 MB. Max. memory is 16.1 GB. [2020-10-25 20:26:11,173 INFO L168 Benchmark]: Boogie Procedure Inliner took 110.06 ms. Allocated memory is still 46.1 MB. Free memory was 23.7 MB in the beginning and 25.3 MB in the end (delta: -1.6 MB). Peak memory consumption was 11.5 MB. Max. memory is 16.1 GB. [2020-10-25 20:26:11,174 INFO L168 Benchmark]: Boogie Preprocessor took 116.13 ms. Allocated memory is still 46.1 MB. Free memory was 25.3 MB in the beginning and 20.2 MB in the end (delta: 5.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-10-25 20:26:11,174 INFO L168 Benchmark]: RCFGBuilder took 1637.95 ms. Allocated memory was 46.1 MB in the beginning and 73.4 MB in the end (delta: 27.3 MB). Free memory was 20.0 MB in the beginning and 37.6 MB in the end (delta: -17.7 MB). Peak memory consumption was 21.4 MB. Max. memory is 16.1 GB. [2020-10-25 20:26:11,175 INFO L168 Benchmark]: TraceAbstraction took 17676.90 ms. Allocated memory was 73.4 MB in the beginning and 406.8 MB in the end (delta: 333.4 MB). Free memory was 37.2 MB in the beginning and 229.5 MB in the end (delta: -192.3 MB). Peak memory consumption was 141.0 MB. Max. memory is 16.1 GB. [2020-10-25 20:26:11,175 INFO L168 Benchmark]: Witness Printer took 234.41 ms. Allocated memory is still 406.8 MB. Free memory was 228.5 MB in the beginning and 213.8 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-10-25 20:26:11,177 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 37.7 MB. Free memory was 23.1 MB in the beginning and 23.0 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 805.34 ms. Allocated memory was 37.7 MB in the beginning and 46.1 MB in the end (delta: 8.4 MB). Free memory was 21.8 MB in the beginning and 23.9 MB in the end (delta: -2.1 MB). Peak memory consumption was 15.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 110.06 ms. Allocated memory is still 46.1 MB. Free memory was 23.7 MB in the beginning and 25.3 MB in the end (delta: -1.6 MB). Peak memory consumption was 11.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 116.13 ms. Allocated memory is still 46.1 MB. Free memory was 25.3 MB in the beginning and 20.2 MB in the end (delta: 5.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1637.95 ms. Allocated memory was 46.1 MB in the beginning and 73.4 MB in the end (delta: 27.3 MB). Free memory was 20.0 MB in the beginning and 37.6 MB in the end (delta: -17.7 MB). Peak memory consumption was 21.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 17676.90 ms. Allocated memory was 73.4 MB in the beginning and 406.8 MB in the end (delta: 333.4 MB). Free memory was 37.2 MB in the beginning and 229.5 MB in the end (delta: -192.3 MB). Peak memory consumption was 141.0 MB. Max. memory is 16.1 GB. * Witness Printer took 234.41 ms. Allocated memory is still 406.8 MB. Free memory was 228.5 MB in the beginning and 213.8 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 578]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 584]: Loop Invariant Derived loop invariant: (((((((14 == a4 && 4 <= a10) && a12 == 0) && a19 <= 9) || (((14 == a4 && a10 == 2) && a12 == 0) && a19 <= 9)) || ((((14 == a4 && a10 == 0) && a1 + 551894 <= 0) && a12 == 0) && a19 == 6)) || (((a10 == 3 && 14 == a4) && a12 == 0) && a19 <= 9)) || ((a10 == 1 && 14 == a4) && a12 == 0)) || (((8 <= a19 && 14 == a4) && a10 == 0) && a12 == 0) - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: (((((((14 == a4 && 4 <= a10) && a12 == 0) && a19 <= 9) || (((14 == a4 && a10 == 2) && a12 == 0) && a19 <= 9)) || ((((14 == a4 && a10 == 0) && a1 + 551894 <= 0) && a12 == 0) && a19 == 6)) || (((a10 == 3 && 14 == a4) && a12 == 0) && a19 <= 9)) || ((a10 == 1 && 14 == a4) && a12 == 0)) || (((8 <= a19 && 14 == a4) && a10 == 0) && a12 == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 17.1s, OverallIterations: 12, TraceHistogramMax: 4, AutomataDifference: 10.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1304 SDtfs, 1217 SDslu, 72 SDs, 0 SdLazy, 4907 SolverSat, 708 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 746 GetRequests, 721 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2228occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 12 MinimizatonAttempts, 1135 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 37 NumberOfFragments, 163 HoareAnnotationTreeSize, 3 FomulaSimplifications, 1861 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 3 FomulaSimplificationsInter, 114 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 3429 NumberOfCodeBlocks, 3429 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 3415 ConstructedInterpolants, 0 QuantifiedInterpolants, 4152787 SizeOfPredicates, 1 NumberOfNonLiveVariables, 1001 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 14 InterpolantComputations, 12 PerfectInterpolantSequences, 2928/3199 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 RESULT: Ultimate proved your program to be correct! Received shutdown request...