./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem14_label36.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/Problem14_label36.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 64b7744142dfd3a6c101b4e5932ac2a504d73e55 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 20:46:25,871 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-25 20:46:25,874 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-25 20:46:25,911 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-25 20:46:25,911 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-25 20:46:25,913 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-25 20:46:25,915 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-25 20:46:25,917 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-25 20:46:25,919 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-25 20:46:25,920 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-25 20:46:25,921 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-25 20:46:25,923 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-25 20:46:25,923 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-25 20:46:25,925 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-25 20:46:25,926 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-25 20:46:25,927 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-25 20:46:25,931 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-25 20:46:25,932 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-25 20:46:25,934 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-25 20:46:25,939 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-25 20:46:25,941 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-25 20:46:25,944 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-25 20:46:25,949 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-25 20:46:25,951 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-25 20:46:25,958 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-25 20:46:25,958 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-25 20:46:25,958 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-25 20:46:25,964 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-25 20:46:25,965 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-25 20:46:25,966 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-25 20:46:25,968 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-25 20:46:25,969 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-25 20:46:25,971 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-25 20:46:25,972 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-25 20:46:25,974 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-25 20:46:25,974 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-25 20:46:25,975 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-25 20:46:25,976 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-25 20:46:25,976 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-25 20:46:25,977 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-25 20:46:25,978 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-25 20:46:25,979 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-25 20:46:26,029 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-25 20:46:26,030 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-25 20:46:26,031 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-25 20:46:26,031 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-25 20:46:26,032 INFO L138 SettingsManager]: * Use SBE=true [2020-10-25 20:46:26,032 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-25 20:46:26,032 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-25 20:46:26,033 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-25 20:46:26,033 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-25 20:46:26,033 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-25 20:46:26,033 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-25 20:46:26,034 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-25 20:46:26,034 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-25 20:46:26,034 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-25 20:46:26,034 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-25 20:46:26,035 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-25 20:46:26,035 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-25 20:46:26,035 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-25 20:46:26,036 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-25 20:46:26,036 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-25 20:46:26,036 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-25 20:46:26,036 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 20:46:26,037 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-25 20:46:26,037 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-25 20:46:26,037 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-25 20:46:26,037 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-25 20:46:26,038 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-25 20:46:26,038 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-25 20:46:26,038 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-25 20:46:26,038 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 64b7744142dfd3a6c101b4e5932ac2a504d73e55 [2020-10-25 20:46:26,399 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-25 20:46:26,440 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-25 20:46:26,443 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-25 20:46:26,444 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-25 20:46:26,446 INFO L275 PluginConnector]: CDTParser initialized [2020-10-25 20:46:26,447 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem14_label36.c [2020-10-25 20:46:26,532 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a0808c5e/1a8a7c256e8a471585b94aa72175711a/FLAGcc36e7762 [2020-10-25 20:46:27,372 INFO L306 CDTParser]: Found 1 translation units. [2020-10-25 20:46:27,376 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem14_label36.c [2020-10-25 20:46:27,387 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a0808c5e/1a8a7c256e8a471585b94aa72175711a/FLAGcc36e7762 [2020-10-25 20:46:27,498 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a0808c5e/1a8a7c256e8a471585b94aa72175711a [2020-10-25 20:46:27,501 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-25 20:46:27,509 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-25 20:46:27,511 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-25 20:46:27,511 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-25 20:46:27,519 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-25 20:46:27,521 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 08:46:27" (1/1) ... [2020-10-25 20:46:27,524 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d0aa71b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:46:27, skipping insertion in model container [2020-10-25 20:46:27,525 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 08:46:27" (1/1) ... [2020-10-25 20:46:27,533 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-25 20:46:27,601 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-25 20:46:28,193 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 20:46:28,203 INFO L203 MainTranslator]: Completed pre-run [2020-10-25 20:46:28,383 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 20:46:28,402 INFO L208 MainTranslator]: Completed translation [2020-10-25 20:46:28,402 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:46:28 WrapperNode [2020-10-25 20:46:28,403 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-25 20:46:28,404 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-25 20:46:28,404 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-25 20:46:28,404 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-25 20:46:28,413 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:46:28" (1/1) ... [2020-10-25 20:46:28,442 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:46:28" (1/1) ... [2020-10-25 20:46:28,552 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-25 20:46:28,567 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-25 20:46:28,568 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-25 20:46:28,568 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-25 20:46:28,577 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:46:28" (1/1) ... [2020-10-25 20:46:28,578 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:46:28" (1/1) ... [2020-10-25 20:46:28,590 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:46:28" (1/1) ... [2020-10-25 20:46:28,591 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:46:28" (1/1) ... [2020-10-25 20:46:28,644 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:46:28" (1/1) ... [2020-10-25 20:46:28,660 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:46:28" (1/1) ... [2020-10-25 20:46:28,674 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:46:28" (1/1) ... [2020-10-25 20:46:28,683 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-25 20:46:28,684 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-25 20:46:28,684 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-25 20:46:28,684 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-25 20:46:28,685 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:46:28" (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 20:46:28,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-25 20:46:28,763 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-25 20:46:28,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-25 20:46:28,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-25 20:46:30,539 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-25 20:46:30,541 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-10-25 20:46:30,544 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 08:46:30 BoogieIcfgContainer [2020-10-25 20:46:30,545 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-25 20:46:30,547 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-25 20:46:30,550 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-25 20:46:30,554 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-25 20:46:30,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 08:46:27" (1/3) ... [2020-10-25 20:46:30,555 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ddfd27a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 08:46:30, skipping insertion in model container [2020-10-25 20:46:30,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:46:28" (2/3) ... [2020-10-25 20:46:30,556 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ddfd27a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 08:46:30, skipping insertion in model container [2020-10-25 20:46:30,556 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 08:46:30" (3/3) ... [2020-10-25 20:46:30,557 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label36.c [2020-10-25 20:46:30,571 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-25 20:46:30,576 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-25 20:46:30,591 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-25 20:46:30,638 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-25 20:46:30,638 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-25 20:46:30,638 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-25 20:46:30,638 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-25 20:46:30,638 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-25 20:46:30,639 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-25 20:46:30,639 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-25 20:46:30,639 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-25 20:46:30,665 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states. [2020-10-25 20:46:30,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-10-25 20:46:30,683 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:46:30,684 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, 1] [2020-10-25 20:46:30,685 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:46:30,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:46:30,692 INFO L82 PathProgramCache]: Analyzing trace with hash 563919826, now seen corresponding path program 1 times [2020-10-25 20:46:30,702 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:46:30,703 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005053044] [2020-10-25 20:46:30,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:46:30,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:46:30,975 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 20:46:30,993 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005053044] [2020-10-25 20:46:30,994 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:46:30,995 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-25 20:46:30,996 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592503273] [2020-10-25 20:46:31,000 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:46:31,001 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:46:31,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:46:31,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:46:31,018 INFO L87 Difference]: Start difference. First operand 246 states. Second operand 3 states. [2020-10-25 20:46:32,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:46:32,589 INFO L93 Difference]: Finished difference Result 670 states and 1201 transitions. [2020-10-25 20:46:32,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:46:32,592 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 48 [2020-10-25 20:46:32,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:46:32,621 INFO L225 Difference]: With dead ends: 670 [2020-10-25 20:46:32,622 INFO L226 Difference]: Without dead ends: 360 [2020-10-25 20:46:32,630 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 20:46:32,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2020-10-25 20:46:32,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 360. [2020-10-25 20:46:32,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 360 states. [2020-10-25 20:46:32,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 588 transitions. [2020-10-25 20:46:32,735 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 588 transitions. Word has length 48 [2020-10-25 20:46:32,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:46:32,736 INFO L481 AbstractCegarLoop]: Abstraction has 360 states and 588 transitions. [2020-10-25 20:46:32,737 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:46:32,738 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 588 transitions. [2020-10-25 20:46:32,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-10-25 20:46:32,746 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:46:32,746 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, 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] [2020-10-25 20:46:32,747 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-25 20:46:32,747 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:46:32,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:46:32,750 INFO L82 PathProgramCache]: Analyzing trace with hash -1704322678, now seen corresponding path program 1 times [2020-10-25 20:46:32,751 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:46:32,751 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522712986] [2020-10-25 20:46:32,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:46:32,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:46:32,995 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 20:46:32,996 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522712986] [2020-10-25 20:46:32,997 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:46:32,998 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-25 20:46:32,998 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571170537] [2020-10-25 20:46:33,000 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:46:33,000 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:46:33,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:46:33,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:46:33,003 INFO L87 Difference]: Start difference. First operand 360 states and 588 transitions. Second operand 3 states. [2020-10-25 20:46:34,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:46:34,104 INFO L93 Difference]: Finished difference Result 1074 states and 1759 transitions. [2020-10-25 20:46:34,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:46:34,104 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 113 [2020-10-25 20:46:34,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:46:34,109 INFO L225 Difference]: With dead ends: 1074 [2020-10-25 20:46:34,109 INFO L226 Difference]: Without dead ends: 716 [2020-10-25 20:46:34,113 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 20:46:34,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2020-10-25 20:46:34,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 538. [2020-10-25 20:46:34,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2020-10-25 20:46:34,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 802 transitions. [2020-10-25 20:46:34,136 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 802 transitions. Word has length 113 [2020-10-25 20:46:34,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:46:34,137 INFO L481 AbstractCegarLoop]: Abstraction has 538 states and 802 transitions. [2020-10-25 20:46:34,137 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:46:34,137 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 802 transitions. [2020-10-25 20:46:34,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-10-25 20:46:34,140 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:46:34,140 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, 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] [2020-10-25 20:46:34,140 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-25 20:46:34,141 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:46:34,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:46:34,141 INFO L82 PathProgramCache]: Analyzing trace with hash 1499800359, now seen corresponding path program 1 times [2020-10-25 20:46:34,141 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:46:34,142 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221918571] [2020-10-25 20:46:34,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:46:34,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:46:34,377 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 20:46:34,378 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221918571] [2020-10-25 20:46:34,378 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:46:34,378 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 20:46:34,378 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602068589] [2020-10-25 20:46:34,379 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-25 20:46:34,379 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:46:34,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-25 20:46:34,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-25 20:46:34,380 INFO L87 Difference]: Start difference. First operand 538 states and 802 transitions. Second operand 4 states. [2020-10-25 20:46:36,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:46:36,057 INFO L93 Difference]: Finished difference Result 1430 states and 2030 transitions. [2020-10-25 20:46:36,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-25 20:46:36,060 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 127 [2020-10-25 20:46:36,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:46:36,065 INFO L225 Difference]: With dead ends: 1430 [2020-10-25 20:46:36,065 INFO L226 Difference]: Without dead ends: 894 [2020-10-25 20:46:36,067 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 20:46:36,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2020-10-25 20:46:36,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 894. [2020-10-25 20:46:36,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 894 states. [2020-10-25 20:46:36,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1194 transitions. [2020-10-25 20:46:36,105 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 1194 transitions. Word has length 127 [2020-10-25 20:46:36,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:46:36,106 INFO L481 AbstractCegarLoop]: Abstraction has 894 states and 1194 transitions. [2020-10-25 20:46:36,106 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-25 20:46:36,106 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 1194 transitions. [2020-10-25 20:46:36,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2020-10-25 20:46:36,112 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:46:36,112 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, 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, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 20:46:36,113 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-25 20:46:36,113 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:46:36,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:46:36,114 INFO L82 PathProgramCache]: Analyzing trace with hash -240875685, now seen corresponding path program 1 times [2020-10-25 20:46:36,114 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:46:36,114 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197191904] [2020-10-25 20:46:36,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:46:36,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:46:36,457 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 152 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-10-25 20:46:36,457 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197191904] [2020-10-25 20:46:36,457 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:46:36,458 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 20:46:36,458 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250861169] [2020-10-25 20:46:36,458 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-25 20:46:36,459 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:46:36,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-25 20:46:36,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-25 20:46:36,460 INFO L87 Difference]: Start difference. First operand 894 states and 1194 transitions. Second operand 4 states. [2020-10-25 20:46:37,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:46:37,587 INFO L93 Difference]: Finished difference Result 1993 states and 2629 transitions. [2020-10-25 20:46:37,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-25 20:46:37,589 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 207 [2020-10-25 20:46:37,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:46:37,598 INFO L225 Difference]: With dead ends: 1993 [2020-10-25 20:46:37,599 INFO L226 Difference]: Without dead ends: 1072 [2020-10-25 20:46:37,601 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 20:46:37,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2020-10-25 20:46:37,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 1072. [2020-10-25 20:46:37,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1072 states. [2020-10-25 20:46:37,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1264 transitions. [2020-10-25 20:46:37,638 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1264 transitions. Word has length 207 [2020-10-25 20:46:37,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:46:37,640 INFO L481 AbstractCegarLoop]: Abstraction has 1072 states and 1264 transitions. [2020-10-25 20:46:37,640 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-25 20:46:37,640 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1264 transitions. [2020-10-25 20:46:37,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2020-10-25 20:46:37,651 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:46:37,651 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, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 20:46:37,652 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-25 20:46:37,652 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:46:37,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:46:37,653 INFO L82 PathProgramCache]: Analyzing trace with hash 1163538037, now seen corresponding path program 1 times [2020-10-25 20:46:37,654 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:46:37,654 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322000620] [2020-10-25 20:46:37,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:46:37,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:46:38,024 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 91 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 20:46:38,024 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322000620] [2020-10-25 20:46:38,025 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [204377134] [2020-10-25 20:46:38,025 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 20:46:38,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:46:38,172 INFO L263 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-25 20:46:38,185 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 20:46:38,473 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2020-10-25 20:46:38,475 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-25 20:46:38,477 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2020-10-25 20:46:38,478 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685262926] [2020-10-25 20:46:38,479 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:46:38,479 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:46:38,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:46:38,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-25 20:46:38,481 INFO L87 Difference]: Start difference. First operand 1072 states and 1264 transitions. Second operand 3 states. [2020-10-25 20:46:39,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:46:39,572 INFO L93 Difference]: Finished difference Result 2320 states and 2779 transitions. [2020-10-25 20:46:39,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:46:39,573 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 219 [2020-10-25 20:46:39,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:46:39,581 INFO L225 Difference]: With dead ends: 2320 [2020-10-25 20:46:39,581 INFO L226 Difference]: Without dead ends: 1250 [2020-10-25 20:46:39,584 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-25 20:46:39,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2020-10-25 20:46:39,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 1072. [2020-10-25 20:46:39,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1072 states. [2020-10-25 20:46:39,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1250 transitions. [2020-10-25 20:46:39,619 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1250 transitions. Word has length 219 [2020-10-25 20:46:39,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:46:39,641 INFO L481 AbstractCegarLoop]: Abstraction has 1072 states and 1250 transitions. [2020-10-25 20:46:39,641 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:46:39,641 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1250 transitions. [2020-10-25 20:46:39,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2020-10-25 20:46:39,645 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:46:39,645 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, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 20:46:39,847 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-25 20:46:39,848 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:46:39,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:46:39,850 INFO L82 PathProgramCache]: Analyzing trace with hash -199208916, now seen corresponding path program 1 times [2020-10-25 20:46:39,850 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:46:39,850 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619609667] [2020-10-25 20:46:39,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:46:39,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:46:40,047 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 159 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 20:46:40,048 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619609667] [2020-10-25 20:46:40,048 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:46:40,049 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 20:46:40,049 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397996176] [2020-10-25 20:46:40,049 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:46:40,050 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:46:40,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:46:40,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:46:40,051 INFO L87 Difference]: Start difference. First operand 1072 states and 1250 transitions. Second operand 3 states. [2020-10-25 20:46:40,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:46:40,977 INFO L93 Difference]: Finished difference Result 2854 states and 3362 transitions. [2020-10-25 20:46:40,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:46:40,978 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 222 [2020-10-25 20:46:40,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:46:40,991 INFO L225 Difference]: With dead ends: 2854 [2020-10-25 20:46:40,992 INFO L226 Difference]: Without dead ends: 1784 [2020-10-25 20:46:40,994 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 20:46:40,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1784 states. [2020-10-25 20:46:41,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1784 to 1606. [2020-10-25 20:46:41,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1606 states. [2020-10-25 20:46:41,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1606 states to 1606 states and 1824 transitions. [2020-10-25 20:46:41,036 INFO L78 Accepts]: Start accepts. Automaton has 1606 states and 1824 transitions. Word has length 222 [2020-10-25 20:46:41,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:46:41,036 INFO L481 AbstractCegarLoop]: Abstraction has 1606 states and 1824 transitions. [2020-10-25 20:46:41,037 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:46:41,037 INFO L276 IsEmpty]: Start isEmpty. Operand 1606 states and 1824 transitions. [2020-10-25 20:46:41,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2020-10-25 20:46:41,044 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:46:41,045 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, 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, 2, 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] [2020-10-25 20:46:41,053 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-25 20:46:41,053 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:46:41,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:46:41,059 INFO L82 PathProgramCache]: Analyzing trace with hash -87693209, now seen corresponding path program 1 times [2020-10-25 20:46:41,059 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:46:41,060 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723894688] [2020-10-25 20:46:41,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:46:41,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:46:41,576 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2020-10-25 20:46:41,577 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723894688] [2020-10-25 20:46:41,578 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:46:41,578 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 20:46:41,579 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255913398] [2020-10-25 20:46:41,580 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-25 20:46:41,580 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:46:41,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-25 20:46:41,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-25 20:46:41,582 INFO L87 Difference]: Start difference. First operand 1606 states and 1824 transitions. Second operand 4 states. [2020-10-25 20:46:42,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:46:42,654 INFO L93 Difference]: Finished difference Result 3268 states and 3727 transitions. [2020-10-25 20:46:42,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-25 20:46:42,656 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 339 [2020-10-25 20:46:42,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:46:42,666 INFO L225 Difference]: With dead ends: 3268 [2020-10-25 20:46:42,666 INFO L226 Difference]: Without dead ends: 1784 [2020-10-25 20:46:42,668 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 20:46:42,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1784 states. [2020-10-25 20:46:42,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1784 to 1606. [2020-10-25 20:46:42,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1606 states. [2020-10-25 20:46:42,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1606 states to 1606 states and 1751 transitions. [2020-10-25 20:46:42,703 INFO L78 Accepts]: Start accepts. Automaton has 1606 states and 1751 transitions. Word has length 339 [2020-10-25 20:46:42,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:46:42,704 INFO L481 AbstractCegarLoop]: Abstraction has 1606 states and 1751 transitions. [2020-10-25 20:46:42,704 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-25 20:46:42,704 INFO L276 IsEmpty]: Start isEmpty. Operand 1606 states and 1751 transitions. [2020-10-25 20:46:42,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 435 [2020-10-25 20:46:42,712 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:46:42,712 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 1, 1, 1, 1, 1, 1] [2020-10-25 20:46:42,712 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-25 20:46:42,713 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:46:42,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:46:42,713 INFO L82 PathProgramCache]: Analyzing trace with hash 816638732, now seen corresponding path program 1 times [2020-10-25 20:46:42,714 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:46:42,714 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682357708] [2020-10-25 20:46:42,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:46:42,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:46:43,131 INFO L134 CoverageAnalysis]: Checked inductivity of 703 backedges. 389 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2020-10-25 20:46:43,132 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682357708] [2020-10-25 20:46:43,133 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:46:43,133 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 20:46:43,133 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367873779] [2020-10-25 20:46:43,134 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:46:43,134 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:46:43,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:46:43,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:46:43,135 INFO L87 Difference]: Start difference. First operand 1606 states and 1751 transitions. Second operand 3 states. [2020-10-25 20:46:44,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:46:44,037 INFO L93 Difference]: Finished difference Result 3922 states and 4309 transitions. [2020-10-25 20:46:44,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:46:44,037 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 434 [2020-10-25 20:46:44,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:46:44,051 INFO L225 Difference]: With dead ends: 3922 [2020-10-25 20:46:44,052 INFO L226 Difference]: Without dead ends: 2496 [2020-10-25 20:46:44,054 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 20:46:44,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2496 states. [2020-10-25 20:46:44,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2496 to 1962. [2020-10-25 20:46:44,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1962 states. [2020-10-25 20:46:44,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1962 states to 1962 states and 2110 transitions. [2020-10-25 20:46:44,100 INFO L78 Accepts]: Start accepts. Automaton has 1962 states and 2110 transitions. Word has length 434 [2020-10-25 20:46:44,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:46:44,101 INFO L481 AbstractCegarLoop]: Abstraction has 1962 states and 2110 transitions. [2020-10-25 20:46:44,101 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:46:44,101 INFO L276 IsEmpty]: Start isEmpty. Operand 1962 states and 2110 transitions. [2020-10-25 20:46:44,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 442 [2020-10-25 20:46:44,110 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:46:44,111 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 20:46:44,111 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-25 20:46:44,111 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:46:44,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:46:44,112 INFO L82 PathProgramCache]: Analyzing trace with hash -991017399, now seen corresponding path program 1 times [2020-10-25 20:46:44,112 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:46:44,113 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967533266] [2020-10-25 20:46:44,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:46:44,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:46:44,548 INFO L134 CoverageAnalysis]: Checked inductivity of 703 backedges. 389 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2020-10-25 20:46:44,549 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967533266] [2020-10-25 20:46:44,550 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:46:44,550 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 20:46:44,551 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456442614] [2020-10-25 20:46:44,551 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:46:44,552 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:46:44,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:46:44,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:46:44,553 INFO L87 Difference]: Start difference. First operand 1962 states and 2110 transitions. Second operand 3 states. [2020-10-25 20:46:45,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:46:45,433 INFO L93 Difference]: Finished difference Result 4456 states and 4861 transitions. [2020-10-25 20:46:45,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:46:45,433 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 441 [2020-10-25 20:46:45,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:46:45,446 INFO L225 Difference]: With dead ends: 4456 [2020-10-25 20:46:45,446 INFO L226 Difference]: Without dead ends: 2674 [2020-10-25 20:46:45,449 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 20:46:45,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2674 states. [2020-10-25 20:46:45,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2674 to 2496. [2020-10-25 20:46:45,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2496 states. [2020-10-25 20:46:45,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2496 states to 2496 states and 2661 transitions. [2020-10-25 20:46:45,503 INFO L78 Accepts]: Start accepts. Automaton has 2496 states and 2661 transitions. Word has length 441 [2020-10-25 20:46:45,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:46:45,508 INFO L481 AbstractCegarLoop]: Abstraction has 2496 states and 2661 transitions. [2020-10-25 20:46:45,508 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:46:45,509 INFO L276 IsEmpty]: Start isEmpty. Operand 2496 states and 2661 transitions. [2020-10-25 20:46:45,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 597 [2020-10-25 20:46:45,514 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:46:45,516 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 20:46:45,517 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-25 20:46:45,517 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:46:45,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:46:45,518 INFO L82 PathProgramCache]: Analyzing trace with hash -977194400, now seen corresponding path program 1 times [2020-10-25 20:46:45,518 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:46:45,518 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280286000] [2020-10-25 20:46:45,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:46:45,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:46:45,995 INFO L134 CoverageAnalysis]: Checked inductivity of 1141 backedges. 504 proven. 0 refuted. 0 times theorem prover too weak. 637 trivial. 0 not checked. [2020-10-25 20:46:45,995 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280286000] [2020-10-25 20:46:45,995 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:46:45,996 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 20:46:45,996 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977483430] [2020-10-25 20:46:45,997 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:46:45,997 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:46:45,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:46:45,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:46:45,998 INFO L87 Difference]: Start difference. First operand 2496 states and 2661 transitions. Second operand 3 states. [2020-10-25 20:46:46,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:46:46,892 INFO L93 Difference]: Finished difference Result 5524 states and 5971 transitions. [2020-10-25 20:46:46,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:46:46,892 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 596 [2020-10-25 20:46:46,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:46:46,909 INFO L225 Difference]: With dead ends: 5524 [2020-10-25 20:46:46,910 INFO L226 Difference]: Without dead ends: 3208 [2020-10-25 20:46:46,914 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 20:46:46,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3208 states. [2020-10-25 20:46:46,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3208 to 3208. [2020-10-25 20:46:46,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3208 states. [2020-10-25 20:46:47,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3208 states to 3208 states and 3414 transitions. [2020-10-25 20:46:47,006 INFO L78 Accepts]: Start accepts. Automaton has 3208 states and 3414 transitions. Word has length 596 [2020-10-25 20:46:47,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:46:47,008 INFO L481 AbstractCegarLoop]: Abstraction has 3208 states and 3414 transitions. [2020-10-25 20:46:47,008 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:46:47,008 INFO L276 IsEmpty]: Start isEmpty. Operand 3208 states and 3414 transitions. [2020-10-25 20:46:47,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 615 [2020-10-25 20:46:47,015 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:46:47,016 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 20:46:47,016 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-25 20:46:47,016 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:46:47,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:46:47,017 INFO L82 PathProgramCache]: Analyzing trace with hash 1620333677, now seen corresponding path program 1 times [2020-10-25 20:46:47,017 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:46:47,018 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334579731] [2020-10-25 20:46:47,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:46:47,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:46:47,649 INFO L134 CoverageAnalysis]: Checked inductivity of 1141 backedges. 781 proven. 0 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked. [2020-10-25 20:46:47,649 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334579731] [2020-10-25 20:46:47,650 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:46:47,650 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 20:46:47,650 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466266647] [2020-10-25 20:46:47,651 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:46:47,651 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:46:47,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:46:47,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:46:47,652 INFO L87 Difference]: Start difference. First operand 3208 states and 3414 transitions. Second operand 3 states. [2020-10-25 20:46:48,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:46:48,530 INFO L93 Difference]: Finished difference Result 6948 states and 7469 transitions. [2020-10-25 20:46:48,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:46:48,531 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 614 [2020-10-25 20:46:48,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:46:48,551 INFO L225 Difference]: With dead ends: 6948 [2020-10-25 20:46:48,551 INFO L226 Difference]: Without dead ends: 3920 [2020-10-25 20:46:48,556 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 20:46:48,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3920 states. [2020-10-25 20:46:48,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3920 to 3564. [2020-10-25 20:46:48,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3564 states. [2020-10-25 20:46:48,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3564 states to 3564 states and 3807 transitions. [2020-10-25 20:46:48,640 INFO L78 Accepts]: Start accepts. Automaton has 3564 states and 3807 transitions. Word has length 614 [2020-10-25 20:46:48,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:46:48,642 INFO L481 AbstractCegarLoop]: Abstraction has 3564 states and 3807 transitions. [2020-10-25 20:46:48,642 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:46:48,642 INFO L276 IsEmpty]: Start isEmpty. Operand 3564 states and 3807 transitions. [2020-10-25 20:46:48,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 638 [2020-10-25 20:46:48,649 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:46:48,649 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 20:46:48,650 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-25 20:46:48,650 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:46:48,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:46:48,651 INFO L82 PathProgramCache]: Analyzing trace with hash -1003123309, now seen corresponding path program 1 times [2020-10-25 20:46:48,651 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:46:48,651 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155308765] [2020-10-25 20:46:48,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:46:48,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:46:49,286 INFO L134 CoverageAnalysis]: Checked inductivity of 1296 backedges. 872 proven. 110 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2020-10-25 20:46:49,287 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155308765] [2020-10-25 20:46:49,287 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [831268406] [2020-10-25 20:46:49,288 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 20:46:49,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:46:49,514 INFO L263 TraceCheckSpWp]: Trace formula consists of 818 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-25 20:46:49,542 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 20:46:49,790 INFO L134 CoverageAnalysis]: Checked inductivity of 1296 backedges. 229 proven. 0 refuted. 0 times theorem prover too weak. 1067 trivial. 0 not checked. [2020-10-25 20:46:49,790 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-25 20:46:49,790 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2020-10-25 20:46:49,791 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637251393] [2020-10-25 20:46:49,792 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:46:49,792 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:46:49,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:46:49,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-25 20:46:49,793 INFO L87 Difference]: Start difference. First operand 3564 states and 3807 transitions. Second operand 3 states. [2020-10-25 20:46:50,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:46:50,598 INFO L93 Difference]: Finished difference Result 8016 states and 8553 transitions. [2020-10-25 20:46:50,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:46:50,600 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 637 [2020-10-25 20:46:50,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:46:50,616 INFO L225 Difference]: With dead ends: 8016 [2020-10-25 20:46:50,617 INFO L226 Difference]: Without dead ends: 3742 [2020-10-25 20:46:50,623 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 640 GetRequests, 637 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-25 20:46:50,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3742 states. [2020-10-25 20:46:50,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3742 to 3564. [2020-10-25 20:46:50,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3564 states. [2020-10-25 20:46:50,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3564 states to 3564 states and 3786 transitions. [2020-10-25 20:46:50,720 INFO L78 Accepts]: Start accepts. Automaton has 3564 states and 3786 transitions. Word has length 637 [2020-10-25 20:46:50,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:46:50,721 INFO L481 AbstractCegarLoop]: Abstraction has 3564 states and 3786 transitions. [2020-10-25 20:46:50,721 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:46:50,722 INFO L276 IsEmpty]: Start isEmpty. Operand 3564 states and 3786 transitions. [2020-10-25 20:46:50,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 785 [2020-10-25 20:46:50,730 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:46:50,730 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 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 20:46:50,945 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2020-10-25 20:46:50,946 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:46:50,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:46:50,948 INFO L82 PathProgramCache]: Analyzing trace with hash 1031044990, now seen corresponding path program 1 times [2020-10-25 20:46:50,948 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:46:50,949 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872632739] [2020-10-25 20:46:50,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:46:51,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:46:51,846 INFO L134 CoverageAnalysis]: Checked inductivity of 1799 backedges. 1284 proven. 155 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked. [2020-10-25 20:46:51,846 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872632739] [2020-10-25 20:46:51,847 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [342076864] [2020-10-25 20:46:51,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-25 20:46:52,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:46:52,085 INFO L263 TraceCheckSpWp]: Trace formula consists of 990 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-25 20:46:52,094 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 20:46:52,497 INFO L134 CoverageAnalysis]: Checked inductivity of 1799 backedges. 275 proven. 0 refuted. 0 times theorem prover too weak. 1524 trivial. 0 not checked. [2020-10-25 20:46:52,497 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-25 20:46:52,497 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2020-10-25 20:46:52,498 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18602473] [2020-10-25 20:46:52,499 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:46:52,499 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:46:52,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:46:52,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-25 20:46:52,500 INFO L87 Difference]: Start difference. First operand 3564 states and 3786 transitions. Second operand 3 states. [2020-10-25 20:46:53,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:46:53,267 INFO L93 Difference]: Finished difference Result 4456 states and 4725 transitions. [2020-10-25 20:46:53,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:46:53,268 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 784 [2020-10-25 20:46:53,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:46:53,287 INFO L225 Difference]: With dead ends: 4456 [2020-10-25 20:46:53,287 INFO L226 Difference]: Without dead ends: 4454 [2020-10-25 20:46:53,289 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 787 GetRequests, 784 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-25 20:46:53,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4454 states. [2020-10-25 20:46:53,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4454 to 3564. [2020-10-25 20:46:53,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3564 states. [2020-10-25 20:46:53,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3564 states to 3564 states and 3786 transitions. [2020-10-25 20:46:53,362 INFO L78 Accepts]: Start accepts. Automaton has 3564 states and 3786 transitions. Word has length 784 [2020-10-25 20:46:53,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:46:53,363 INFO L481 AbstractCegarLoop]: Abstraction has 3564 states and 3786 transitions. [2020-10-25 20:46:53,363 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:46:53,364 INFO L276 IsEmpty]: Start isEmpty. Operand 3564 states and 3786 transitions. [2020-10-25 20:46:53,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 793 [2020-10-25 20:46:53,372 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:46:53,373 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 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 20:46:53,588 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2020-10-25 20:46:53,589 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:46:53,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:46:53,590 INFO L82 PathProgramCache]: Analyzing trace with hash 591489514, now seen corresponding path program 1 times [2020-10-25 20:46:53,591 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:46:53,591 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390513791] [2020-10-25 20:46:53,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:46:53,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:46:54,646 INFO L134 CoverageAnalysis]: Checked inductivity of 1839 backedges. 1324 proven. 155 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked. [2020-10-25 20:46:54,646 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390513791] [2020-10-25 20:46:54,647 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [609557085] [2020-10-25 20:46:54,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-25 20:46:54,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:46:54,928 INFO L263 TraceCheckSpWp]: Trace formula consists of 997 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-25 20:46:54,957 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 20:46:55,384 INFO L134 CoverageAnalysis]: Checked inductivity of 1839 backedges. 275 proven. 0 refuted. 0 times theorem prover too weak. 1564 trivial. 0 not checked. [2020-10-25 20:46:55,385 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-25 20:46:55,385 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2020-10-25 20:46:55,385 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655169405] [2020-10-25 20:46:55,386 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:46:55,386 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:46:55,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:46:55,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-25 20:46:55,387 INFO L87 Difference]: Start difference. First operand 3564 states and 3786 transitions. Second operand 3 states. [2020-10-25 20:46:56,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:46:56,088 INFO L93 Difference]: Finished difference Result 7838 states and 8347 transitions. [2020-10-25 20:46:56,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:46:56,089 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 792 [2020-10-25 20:46:56,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:46:56,109 INFO L225 Difference]: With dead ends: 7838 [2020-10-25 20:46:56,110 INFO L226 Difference]: Without dead ends: 4454 [2020-10-25 20:46:56,114 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 795 GetRequests, 792 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-25 20:46:56,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4454 states. [2020-10-25 20:46:56,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4454 to 4098. [2020-10-25 20:46:56,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4098 states. [2020-10-25 20:46:56,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4098 states to 4098 states and 4346 transitions. [2020-10-25 20:46:56,185 INFO L78 Accepts]: Start accepts. Automaton has 4098 states and 4346 transitions. Word has length 792 [2020-10-25 20:46:56,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:46:56,186 INFO L481 AbstractCegarLoop]: Abstraction has 4098 states and 4346 transitions. [2020-10-25 20:46:56,186 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:46:56,186 INFO L276 IsEmpty]: Start isEmpty. Operand 4098 states and 4346 transitions. [2020-10-25 20:46:56,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 979 [2020-10-25 20:46:56,200 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:46:56,201 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 20:46:56,414 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-25 20:46:56,414 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:46:56,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:46:56,415 INFO L82 PathProgramCache]: Analyzing trace with hash -386747347, now seen corresponding path program 1 times [2020-10-25 20:46:56,416 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:46:56,416 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210084204] [2020-10-25 20:46:56,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:46:56,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:46:58,907 INFO L134 CoverageAnalysis]: Checked inductivity of 2725 backedges. 1182 proven. 642 refuted. 0 times theorem prover too weak. 901 trivial. 0 not checked. [2020-10-25 20:46:58,907 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210084204] [2020-10-25 20:46:58,907 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1456168881] [2020-10-25 20:46:58,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-25 20:46:59,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:46:59,172 INFO L263 TraceCheckSpWp]: Trace formula consists of 1206 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-25 20:46:59,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 20:46:59,596 INFO L134 CoverageAnalysis]: Checked inductivity of 2725 backedges. 321 proven. 0 refuted. 0 times theorem prover too weak. 2404 trivial. 0 not checked. [2020-10-25 20:46:59,597 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-25 20:46:59,597 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2020-10-25 20:46:59,597 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585015809] [2020-10-25 20:46:59,598 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:46:59,599 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:46:59,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:46:59,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-25 20:46:59,600 INFO L87 Difference]: Start difference. First operand 4098 states and 4346 transitions. Second operand 3 states. [2020-10-25 20:47:00,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:47:00,305 INFO L93 Difference]: Finished difference Result 8726 states and 9306 transitions. [2020-10-25 20:47:00,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:47:00,306 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 978 [2020-10-25 20:47:00,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:47:00,307 INFO L225 Difference]: With dead ends: 8726 [2020-10-25 20:47:00,308 INFO L226 Difference]: Without dead ends: 0 [2020-10-25 20:47:00,314 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 983 GetRequests, 977 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-25 20:47:00,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-25 20:47:00,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-25 20:47:00,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-25 20:47:00,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-25 20:47:00,316 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 978 [2020-10-25 20:47:00,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:47:00,316 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-25 20:47:00,316 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:47:00,316 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-25 20:47:00,317 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-25 20:47:00,530 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2020-10-25 20:47:00,535 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-25 20:47:00,851 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 42 [2020-10-25 20:47:01,029 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 42 [2020-10-25 20:47:01,033 INFO L274 CegarLoopResult]: For program point L696(lines 696 872) no Hoare annotation was computed. [2020-10-25 20:47:01,033 INFO L274 CegarLoopResult]: For program point L168(line 168) no Hoare annotation was computed. [2020-10-25 20:47:01,033 INFO L274 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2020-10-25 20:47:01,033 INFO L274 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-10-25 20:47:01,033 INFO L274 CegarLoopResult]: For program point L301(lines 301 872) no Hoare annotation was computed. [2020-10-25 20:47:01,033 INFO L274 CegarLoopResult]: For program point L434(lines 434 872) no Hoare annotation was computed. [2020-10-25 20:47:01,034 INFO L274 CegarLoopResult]: For program point L368(lines 368 872) no Hoare annotation was computed. [2020-10-25 20:47:01,034 INFO L274 CegarLoopResult]: For program point L170-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:47:01,034 INFO L274 CegarLoopResult]: For program point L104-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:47:01,034 INFO L274 CegarLoopResult]: For program point L38-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:47:01,034 INFO L274 CegarLoopResult]: For program point L237(lines 237 872) no Hoare annotation was computed. [2020-10-25 20:47:01,034 INFO L274 CegarLoopResult]: For program point L171(line 171) no Hoare annotation was computed. [2020-10-25 20:47:01,034 INFO L274 CegarLoopResult]: For program point L105(line 105) no Hoare annotation was computed. [2020-10-25 20:47:01,034 INFO L274 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-10-25 20:47:01,034 INFO L274 CegarLoopResult]: For program point L766(lines 766 872) no Hoare annotation was computed. [2020-10-25 20:47:01,034 INFO L274 CegarLoopResult]: For program point L634(lines 634 872) no Hoare annotation was computed. [2020-10-25 20:47:01,034 INFO L274 CegarLoopResult]: For program point L502(lines 502 872) no Hoare annotation was computed. [2020-10-25 20:47:01,034 INFO L274 CegarLoopResult]: For program point L833(lines 833 872) no Hoare annotation was computed. [2020-10-25 20:47:01,034 INFO L274 CegarLoopResult]: For program point L173-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:47:01,035 INFO L274 CegarLoopResult]: For program point L107-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:47:01,035 INFO L274 CegarLoopResult]: For program point L41-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:47:01,035 INFO L274 CegarLoopResult]: For program point L702(lines 702 872) no Hoare annotation was computed. [2020-10-25 20:47:01,035 INFO L274 CegarLoopResult]: For program point L570(lines 570 872) no Hoare annotation was computed. [2020-10-25 20:47:01,035 INFO L274 CegarLoopResult]: For program point L174(line 174) no Hoare annotation was computed. [2020-10-25 20:47:01,035 INFO L274 CegarLoopResult]: For program point L108(line 108) no Hoare annotation was computed. [2020-10-25 20:47:01,035 INFO L274 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-10-25 20:47:01,035 INFO L274 CegarLoopResult]: For program point L307(lines 307 872) no Hoare annotation was computed. [2020-10-25 20:47:01,035 INFO L274 CegarLoopResult]: For program point L440(lines 440 872) no Hoare annotation was computed. [2020-10-25 20:47:01,035 INFO L274 CegarLoopResult]: For program point L374(lines 374 872) no Hoare annotation was computed. [2020-10-25 20:47:01,036 INFO L274 CegarLoopResult]: For program point L176-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:47:01,036 INFO L274 CegarLoopResult]: For program point L110-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:47:01,036 INFO L274 CegarLoopResult]: For program point L44-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:47:01,036 INFO L274 CegarLoopResult]: For program point L243(lines 243 872) no Hoare annotation was computed. [2020-10-25 20:47:01,036 INFO L274 CegarLoopResult]: For program point L177(line 177) no Hoare annotation was computed. [2020-10-25 20:47:01,036 INFO L274 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-10-25 20:47:01,036 INFO L274 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-10-25 20:47:01,036 INFO L274 CegarLoopResult]: For program point L640(lines 640 872) no Hoare annotation was computed. [2020-10-25 20:47:01,036 INFO L274 CegarLoopResult]: For program point L508(lines 508 872) no Hoare annotation was computed. [2020-10-25 20:47:01,036 INFO L274 CegarLoopResult]: For program point L839(lines 839 872) no Hoare annotation was computed. [2020-10-25 20:47:01,036 INFO L274 CegarLoopResult]: For program point L773(lines 773 872) no Hoare annotation was computed. [2020-10-25 20:47:01,037 INFO L274 CegarLoopResult]: For program point L575(lines 575 872) no Hoare annotation was computed. [2020-10-25 20:47:01,037 INFO L274 CegarLoopResult]: For program point L179-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:47:01,037 INFO L274 CegarLoopResult]: For program point L113-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:47:01,037 INFO L274 CegarLoopResult]: For program point L47-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:47:01,037 INFO L274 CegarLoopResult]: For program point L708(lines 708 872) no Hoare annotation was computed. [2020-10-25 20:47:01,037 INFO L274 CegarLoopResult]: For program point L180(line 180) no Hoare annotation was computed. [2020-10-25 20:47:01,037 INFO L274 CegarLoopResult]: For program point L114(line 114) no Hoare annotation was computed. [2020-10-25 20:47:01,037 INFO L274 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-10-25 20:47:01,037 INFO L274 CegarLoopResult]: For program point L313(lines 313 872) no Hoare annotation was computed. [2020-10-25 20:47:01,037 INFO L274 CegarLoopResult]: For program point L446(lines 446 872) no Hoare annotation was computed. [2020-10-25 20:47:01,037 INFO L274 CegarLoopResult]: For program point L380(lines 380 872) no Hoare annotation was computed. [2020-10-25 20:47:01,037 INFO L274 CegarLoopResult]: For program point L182-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:47:01,037 INFO L274 CegarLoopResult]: For program point L116-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:47:01,037 INFO L274 CegarLoopResult]: For program point L50-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:47:01,038 INFO L274 CegarLoopResult]: For program point L249(lines 249 872) no Hoare annotation was computed. [2020-10-25 20:47:01,038 INFO L274 CegarLoopResult]: For program point L183(line 183) no Hoare annotation was computed. [2020-10-25 20:47:01,038 INFO L274 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-10-25 20:47:01,038 INFO L274 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-10-25 20:47:01,038 INFO L274 CegarLoopResult]: For program point L844(lines 844 872) no Hoare annotation was computed. [2020-10-25 20:47:01,038 INFO L274 CegarLoopResult]: For program point L646(lines 646 872) no Hoare annotation was computed. [2020-10-25 20:47:01,038 INFO L274 CegarLoopResult]: For program point L514(lines 514 872) no Hoare annotation was computed. [2020-10-25 20:47:01,038 INFO L274 CegarLoopResult]: For program point L779(lines 779 872) no Hoare annotation was computed. [2020-10-25 20:47:01,038 INFO L274 CegarLoopResult]: For program point L581(lines 581 872) no Hoare annotation was computed. [2020-10-25 20:47:01,038 INFO L274 CegarLoopResult]: For program point L185-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:47:01,038 INFO L274 CegarLoopResult]: For program point L119-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:47:01,038 INFO L274 CegarLoopResult]: For program point L53-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:47:01,038 INFO L274 CegarLoopResult]: For program point L714(lines 714 872) no Hoare annotation was computed. [2020-10-25 20:47:01,039 INFO L274 CegarLoopResult]: For program point L186(line 186) no Hoare annotation was computed. [2020-10-25 20:47:01,039 INFO L274 CegarLoopResult]: For program point L120(line 120) no Hoare annotation was computed. [2020-10-25 20:47:01,039 INFO L274 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-10-25 20:47:01,039 INFO L274 CegarLoopResult]: For program point L451(lines 451 872) no Hoare annotation was computed. [2020-10-25 20:47:01,039 INFO L274 CegarLoopResult]: For program point L319(lines 319 872) no Hoare annotation was computed. [2020-10-25 20:47:01,039 INFO L274 CegarLoopResult]: For program point L386(lines 386 872) no Hoare annotation was computed. [2020-10-25 20:47:01,039 INFO L274 CegarLoopResult]: For program point L254(lines 254 872) no Hoare annotation was computed. [2020-10-25 20:47:01,039 INFO L274 CegarLoopResult]: For program point L188-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:47:01,039 INFO L274 CegarLoopResult]: For program point L122-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:47:01,039 INFO L274 CegarLoopResult]: For program point L56-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:47:01,039 INFO L274 CegarLoopResult]: For program point L189(line 189) no Hoare annotation was computed. [2020-10-25 20:47:01,039 INFO L274 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2020-10-25 20:47:01,039 INFO L274 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-10-25 20:47:01,039 INFO L274 CegarLoopResult]: For program point L850(lines 850 872) no Hoare annotation was computed. [2020-10-25 20:47:01,040 INFO L274 CegarLoopResult]: For program point L652(lines 652 872) no Hoare annotation was computed. [2020-10-25 20:47:01,040 INFO L274 CegarLoopResult]: For program point L520(lines 520 872) no Hoare annotation was computed. [2020-10-25 20:47:01,040 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-25 20:47:01,040 INFO L274 CegarLoopResult]: For program point L785(lines 785 872) no Hoare annotation was computed. [2020-10-25 20:47:01,040 INFO L274 CegarLoopResult]: For program point L587(lines 587 872) no Hoare annotation was computed. [2020-10-25 20:47:01,040 INFO L274 CegarLoopResult]: For program point L191-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:47:01,040 INFO L274 CegarLoopResult]: For program point L125-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:47:01,040 INFO L274 CegarLoopResult]: For program point L59-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:47:01,040 INFO L274 CegarLoopResult]: For program point L720(lines 720 872) no Hoare annotation was computed. [2020-10-25 20:47:01,040 INFO L274 CegarLoopResult]: For program point L456(lines 456 872) no Hoare annotation was computed. [2020-10-25 20:47:01,040 INFO L274 CegarLoopResult]: For program point L192(line 192) no Hoare annotation was computed. [2020-10-25 20:47:01,040 INFO L274 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed. [2020-10-25 20:47:01,040 INFO L274 CegarLoopResult]: For program point L60(line 60) no Hoare annotation was computed. [2020-10-25 20:47:01,041 INFO L274 CegarLoopResult]: For program point L325(lines 325 872) no Hoare annotation was computed. [2020-10-25 20:47:01,041 INFO L274 CegarLoopResult]: For program point L392(lines 392 872) no Hoare annotation was computed. [2020-10-25 20:47:01,041 INFO L274 CegarLoopResult]: For program point L260(lines 260 872) no Hoare annotation was computed. [2020-10-25 20:47:01,041 INFO L274 CegarLoopResult]: For program point L194-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:47:01,041 INFO L274 CegarLoopResult]: For program point L128-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:47:01,041 INFO L274 CegarLoopResult]: For program point L62-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:47:01,041 INFO L274 CegarLoopResult]: For program point L195(line 195) no Hoare annotation was computed. [2020-10-25 20:47:01,041 INFO L274 CegarLoopResult]: For program point L129(line 129) no Hoare annotation was computed. [2020-10-25 20:47:01,041 INFO L274 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-10-25 20:47:01,041 INFO L274 CegarLoopResult]: For program point L856(lines 856 872) no Hoare annotation was computed. [2020-10-25 20:47:01,041 INFO L274 CegarLoopResult]: For program point L658(lines 658 872) no Hoare annotation was computed. [2020-10-25 20:47:01,041 INFO L274 CegarLoopResult]: For program point L526(lines 526 872) no Hoare annotation was computed. [2020-10-25 20:47:01,041 INFO L274 CegarLoopResult]: For program point L791(lines 791 872) no Hoare annotation was computed. [2020-10-25 20:47:01,041 INFO L274 CegarLoopResult]: For program point L593(lines 593 872) no Hoare annotation was computed. [2020-10-25 20:47:01,042 INFO L274 CegarLoopResult]: For program point L197-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:47:01,042 INFO L274 CegarLoopResult]: For program point L131-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:47:01,042 INFO L274 CegarLoopResult]: For program point L65-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:47:01,042 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-25 20:47:01,042 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-25 20:47:01,042 INFO L274 CegarLoopResult]: For program point L726(lines 726 872) no Hoare annotation was computed. [2020-10-25 20:47:01,042 INFO L274 CegarLoopResult]: For program point L462(lines 462 872) no Hoare annotation was computed. [2020-10-25 20:47:01,042 INFO L274 CegarLoopResult]: For program point L198(line 198) no Hoare annotation was computed. [2020-10-25 20:47:01,043 INFO L274 CegarLoopResult]: For program point L132(line 132) no Hoare annotation was computed. [2020-10-25 20:47:01,043 INFO L274 CegarLoopResult]: For program point L66(line 66) no Hoare annotation was computed. [2020-10-25 20:47:01,043 INFO L274 CegarLoopResult]: For program point L331(lines 331 872) no Hoare annotation was computed. [2020-10-25 20:47:01,043 INFO L274 CegarLoopResult]: For program point L398(lines 398 872) no Hoare annotation was computed. [2020-10-25 20:47:01,043 INFO L274 CegarLoopResult]: For program point L266(lines 266 872) no Hoare annotation was computed. [2020-10-25 20:47:01,043 INFO L274 CegarLoopResult]: For program point L200-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:47:01,043 INFO L274 CegarLoopResult]: For program point L134-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:47:01,044 INFO L274 CegarLoopResult]: For program point L68-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:47:01,044 INFO L274 CegarLoopResult]: For program point L861(lines 861 872) no Hoare annotation was computed. [2020-10-25 20:47:01,044 INFO L274 CegarLoopResult]: For program point L201(line 201) no Hoare annotation was computed. [2020-10-25 20:47:01,044 INFO L274 CegarLoopResult]: For program point L135(line 135) no Hoare annotation was computed. [2020-10-25 20:47:01,044 INFO L274 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-10-25 20:47:01,045 INFO L274 CegarLoopResult]: For program point L664(lines 664 872) no Hoare annotation was computed. [2020-10-25 20:47:01,045 INFO L274 CegarLoopResult]: For program point L532(lines 532 872) no Hoare annotation was computed. [2020-10-25 20:47:01,045 INFO L274 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-10-25 20:47:01,045 INFO L274 CegarLoopResult]: For program point L797(lines 797 872) no Hoare annotation was computed. [2020-10-25 20:47:01,045 INFO L274 CegarLoopResult]: For program point L599(lines 599 872) no Hoare annotation was computed. [2020-10-25 20:47:01,045 INFO L274 CegarLoopResult]: For program point L203-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:47:01,046 INFO L274 CegarLoopResult]: For program point L137-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:47:01,046 INFO L274 CegarLoopResult]: For program point L71-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:47:01,046 INFO L274 CegarLoopResult]: For program point L732(lines 732 872) no Hoare annotation was computed. [2020-10-25 20:47:01,046 INFO L274 CegarLoopResult]: For program point L204(line 204) no Hoare annotation was computed. [2020-10-25 20:47:01,046 INFO L274 CegarLoopResult]: For program point L138(line 138) no Hoare annotation was computed. [2020-10-25 20:47:01,046 INFO L274 CegarLoopResult]: For program point L72(line 72) no Hoare annotation was computed. [2020-10-25 20:47:01,046 INFO L274 CegarLoopResult]: For program point L469(lines 469 872) no Hoare annotation was computed. [2020-10-25 20:47:01,047 INFO L274 CegarLoopResult]: For program point L337(lines 337 872) no Hoare annotation was computed. [2020-10-25 20:47:01,047 INFO L274 CegarLoopResult]: For program point L271(lines 271 872) no Hoare annotation was computed. [2020-10-25 20:47:01,047 INFO L274 CegarLoopResult]: For program point L404(lines 404 872) no Hoare annotation was computed. [2020-10-25 20:47:01,047 INFO L274 CegarLoopResult]: For program point L140-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:47:01,047 INFO L274 CegarLoopResult]: For program point L74-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:47:01,047 INFO L274 CegarLoopResult]: For program point L867(lines 867 872) no Hoare annotation was computed. [2020-10-25 20:47:01,048 INFO L274 CegarLoopResult]: For program point L141(line 141) no Hoare annotation was computed. [2020-10-25 20:47:01,048 INFO L274 CegarLoopResult]: For program point L75(line 75) no Hoare annotation was computed. [2020-10-25 20:47:01,048 INFO L274 CegarLoopResult]: For program point L670(lines 670 872) no Hoare annotation was computed. [2020-10-25 20:47:01,048 INFO L274 CegarLoopResult]: For program point L538(lines 538 872) no Hoare annotation was computed. [2020-10-25 20:47:01,048 INFO L274 CegarLoopResult]: For program point L803(lines 803 872) no Hoare annotation was computed. [2020-10-25 20:47:01,048 INFO L274 CegarLoopResult]: For program point L737(lines 737 872) no Hoare annotation was computed. [2020-10-25 20:47:01,048 INFO L274 CegarLoopResult]: For program point L605(lines 605 872) no Hoare annotation was computed. [2020-10-25 20:47:01,048 INFO L274 CegarLoopResult]: For program point L143-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:47:01,049 INFO L274 CegarLoopResult]: For program point L77-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:47:01,049 INFO L274 CegarLoopResult]: For program point L474(lines 474 872) no Hoare annotation was computed. [2020-10-25 20:47:01,049 INFO L274 CegarLoopResult]: For program point L144(line 144) no Hoare annotation was computed. [2020-10-25 20:47:01,049 INFO L274 CegarLoopResult]: For program point L78(line 78) no Hoare annotation was computed. [2020-10-25 20:47:01,049 INFO L274 CegarLoopResult]: For program point L343(lines 343 872) no Hoare annotation was computed. [2020-10-25 20:47:01,049 INFO L274 CegarLoopResult]: For program point L277(lines 277 872) no Hoare annotation was computed. [2020-10-25 20:47:01,049 INFO L274 CegarLoopResult]: For program point L410(lines 410 872) no Hoare annotation was computed. [2020-10-25 20:47:01,049 INFO L274 CegarLoopResult]: For program point L146-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:47:01,050 INFO L274 CegarLoopResult]: For program point L80-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:47:01,050 INFO L270 CegarLoopResult]: At program point L873(lines 22 874) the Hoare annotation is: (let ((.cse0 (<= ~a15~0 5)) (.cse3 (<= (+ ~a12~0 49) 0)) (.cse2 (<= 7 ~a15~0)) (.cse1 (= ~a24~0 1))) (or (and .cse0 .cse1) (and .cse2 .cse1) (and .cse0 .cse3) (and (< 0 (+ ~a12~0 43)) (<= ~a12~0 11) .cse1) (and (<= 9 ~a21~0) .cse1 (<= ~a21~0 9)) (and (<= 8 ~a21~0) .cse1 (<= ~a12~0 80) (<= ~a21~0 8)) (and .cse3 .cse2 (<= ~a15~0 8) (<= 10 ~a21~0)) (and .cse1 (<= ~a21~0 6)))) [2020-10-25 20:47:01,050 INFO L274 CegarLoopResult]: For program point L543(lines 543 872) no Hoare annotation was computed. [2020-10-25 20:47:01,050 INFO L274 CegarLoopResult]: For program point L213(lines 213 872) no Hoare annotation was computed. [2020-10-25 20:47:01,050 INFO L274 CegarLoopResult]: For program point L147(line 147) no Hoare annotation was computed. [2020-10-25 20:47:01,050 INFO L274 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-10-25 20:47:01,050 INFO L274 CegarLoopResult]: For program point L676(lines 676 872) no Hoare annotation was computed. [2020-10-25 20:47:01,050 INFO L274 CegarLoopResult]: For program point L809(lines 809 872) no Hoare annotation was computed. [2020-10-25 20:47:01,051 INFO L274 CegarLoopResult]: For program point L743(lines 743 872) no Hoare annotation was computed. [2020-10-25 20:47:01,051 INFO L274 CegarLoopResult]: For program point L611(lines 611 872) no Hoare annotation was computed. [2020-10-25 20:47:01,051 INFO L274 CegarLoopResult]: For program point L149-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:47:01,051 INFO L274 CegarLoopResult]: For program point L83-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:47:01,051 INFO L277 CegarLoopResult]: At program point L876(lines 876 892) the Hoare annotation is: true [2020-10-25 20:47:01,051 INFO L274 CegarLoopResult]: For program point L480(lines 480 872) no Hoare annotation was computed. [2020-10-25 20:47:01,051 INFO L274 CegarLoopResult]: For program point L282(lines 282 872) no Hoare annotation was computed. [2020-10-25 20:47:01,051 INFO L274 CegarLoopResult]: For program point L150(line 150) no Hoare annotation was computed. [2020-10-25 20:47:01,051 INFO L274 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed. [2020-10-25 20:47:01,051 INFO L274 CegarLoopResult]: For program point L679(lines 679 872) no Hoare annotation was computed. [2020-10-25 20:47:01,051 INFO L274 CegarLoopResult]: For program point L349(lines 349 872) no Hoare annotation was computed. [2020-10-25 20:47:01,051 INFO L274 CegarLoopResult]: For program point L416(lines 416 872) no Hoare annotation was computed. [2020-10-25 20:47:01,051 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-25 20:47:01,052 INFO L274 CegarLoopResult]: For program point L152-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:47:01,052 INFO L274 CegarLoopResult]: For program point L86-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:47:01,052 INFO L274 CegarLoopResult]: For program point L549(lines 549 872) no Hoare annotation was computed. [2020-10-25 20:47:01,052 INFO L274 CegarLoopResult]: For program point L219(lines 219 872) no Hoare annotation was computed. [2020-10-25 20:47:01,052 INFO L274 CegarLoopResult]: For program point L153(line 153) no Hoare annotation was computed. [2020-10-25 20:47:01,052 INFO L274 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-10-25 20:47:01,052 INFO L274 CegarLoopResult]: For program point L749(lines 749 872) no Hoare annotation was computed. [2020-10-25 20:47:01,052 INFO L274 CegarLoopResult]: For program point L617(lines 617 872) no Hoare annotation was computed. [2020-10-25 20:47:01,052 INFO L274 CegarLoopResult]: For program point L155-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:47:01,052 INFO L274 CegarLoopResult]: For program point L89-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:47:01,052 INFO L274 CegarLoopResult]: For program point L23(lines 23 25) no Hoare annotation was computed. [2020-10-25 20:47:01,052 INFO L274 CegarLoopResult]: For program point L23-2(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:47:01,052 INFO L274 CegarLoopResult]: For program point L816(lines 816 872) no Hoare annotation was computed. [2020-10-25 20:47:01,053 INFO L270 CegarLoopResult]: At program point L882-2(lines 882 891) the Hoare annotation is: (let ((.cse0 (<= ~a15~0 5)) (.cse3 (<= (+ ~a12~0 49) 0)) (.cse2 (<= 7 ~a15~0)) (.cse1 (= ~a24~0 1))) (or (and .cse0 .cse1) (and .cse2 .cse1) (and .cse0 .cse3) (and (< 0 (+ ~a12~0 43)) (<= ~a12~0 11) .cse1) (and (<= 9 ~a21~0) .cse1 (<= ~a21~0 9)) (and (<= 8 ~a21~0) .cse1 (<= ~a12~0 80) (<= ~a21~0 8)) (and .cse3 .cse2 (<= ~a15~0 8) (<= 10 ~a21~0)) (and .cse1 (<= ~a21~0 6)))) [2020-10-25 20:47:01,053 INFO L274 CegarLoopResult]: For program point L486(lines 486 872) no Hoare annotation was computed. [2020-10-25 20:47:01,053 INFO L274 CegarLoopResult]: For program point L288(lines 288 872) no Hoare annotation was computed. [2020-10-25 20:47:01,053 INFO L274 CegarLoopResult]: For program point L156(line 156) no Hoare annotation was computed. [2020-10-25 20:47:01,053 INFO L274 CegarLoopResult]: For program point L90(line 90) no Hoare annotation was computed. [2020-10-25 20:47:01,053 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-10-25 20:47:01,053 INFO L274 CegarLoopResult]: For program point L685(lines 685 872) no Hoare annotation was computed. [2020-10-25 20:47:01,053 INFO L274 CegarLoopResult]: For program point L355(lines 355 872) no Hoare annotation was computed. [2020-10-25 20:47:01,053 INFO L274 CegarLoopResult]: For program point L554(lines 554 872) no Hoare annotation was computed. [2020-10-25 20:47:01,053 INFO L274 CegarLoopResult]: For program point L422(lines 422 872) no Hoare annotation was computed. [2020-10-25 20:47:01,054 INFO L274 CegarLoopResult]: For program point L158-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:47:01,054 INFO L274 CegarLoopResult]: For program point L92-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:47:01,054 INFO L274 CegarLoopResult]: For program point L26-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:47:01,054 INFO L274 CegarLoopResult]: For program point L225(lines 225 872) no Hoare annotation was computed. [2020-10-25 20:47:01,054 INFO L274 CegarLoopResult]: For program point L159(line 159) no Hoare annotation was computed. [2020-10-25 20:47:01,054 INFO L274 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-10-25 20:47:01,054 INFO L274 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-10-25 20:47:01,054 INFO L274 CegarLoopResult]: For program point L754(lines 754 872) no Hoare annotation was computed. [2020-10-25 20:47:01,054 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-25 20:47:01,054 INFO L274 CegarLoopResult]: For program point L887(line 887) no Hoare annotation was computed. [2020-10-25 20:47:01,054 INFO L274 CegarLoopResult]: For program point L821(lines 821 872) no Hoare annotation was computed. [2020-10-25 20:47:01,054 INFO L274 CegarLoopResult]: For program point L623(lines 623 872) no Hoare annotation was computed. [2020-10-25 20:47:01,054 INFO L274 CegarLoopResult]: For program point L557(lines 557 872) no Hoare annotation was computed. [2020-10-25 20:47:01,055 INFO L274 CegarLoopResult]: For program point L161-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:47:01,055 INFO L274 CegarLoopResult]: For program point L95-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:47:01,055 INFO L274 CegarLoopResult]: For program point L29-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:47:01,055 INFO L274 CegarLoopResult]: For program point L690(lines 690 872) no Hoare annotation was computed. [2020-10-25 20:47:01,055 INFO L274 CegarLoopResult]: For program point L492(lines 492 872) no Hoare annotation was computed. [2020-10-25 20:47:01,055 INFO L274 CegarLoopResult]: For program point L162(line 162) no Hoare annotation was computed. [2020-10-25 20:47:01,055 INFO L274 CegarLoopResult]: For program point L96(line 96) no Hoare annotation was computed. [2020-10-25 20:47:01,055 INFO L274 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-10-25 20:47:01,055 INFO L274 CegarLoopResult]: For program point L361(lines 361 872) no Hoare annotation was computed. [2020-10-25 20:47:01,055 INFO L274 CegarLoopResult]: For program point L295(lines 295 872) no Hoare annotation was computed. [2020-10-25 20:47:01,055 INFO L274 CegarLoopResult]: For program point L428(lines 428 872) no Hoare annotation was computed. [2020-10-25 20:47:01,055 INFO L274 CegarLoopResult]: For program point L164-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:47:01,055 INFO L274 CegarLoopResult]: For program point L98-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:47:01,056 INFO L274 CegarLoopResult]: For program point L32-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:47:01,056 INFO L274 CegarLoopResult]: For program point L231(lines 231 872) no Hoare annotation was computed. [2020-10-25 20:47:01,056 INFO L274 CegarLoopResult]: For program point L165(line 165) no Hoare annotation was computed. [2020-10-25 20:47:01,056 INFO L274 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2020-10-25 20:47:01,056 INFO L274 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-10-25 20:47:01,056 INFO L274 CegarLoopResult]: For program point L760(lines 760 872) no Hoare annotation was computed. [2020-10-25 20:47:01,056 INFO L274 CegarLoopResult]: For program point L628(lines 628 872) no Hoare annotation was computed. [2020-10-25 20:47:01,056 INFO L274 CegarLoopResult]: For program point L827(lines 827 872) no Hoare annotation was computed. [2020-10-25 20:47:01,056 INFO L274 CegarLoopResult]: For program point L563(lines 563 872) no Hoare annotation was computed. [2020-10-25 20:47:01,056 INFO L274 CegarLoopResult]: For program point L497(lines 497 872) no Hoare annotation was computed. [2020-10-25 20:47:01,056 INFO L274 CegarLoopResult]: For program point L167-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:47:01,056 INFO L274 CegarLoopResult]: For program point L101-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:47:01,056 INFO L274 CegarLoopResult]: For program point L35-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:47:01,078 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 08:47:01 BoogieIcfgContainer [2020-10-25 20:47:01,078 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-25 20:47:01,078 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-25 20:47:01,078 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-25 20:47:01,079 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-25 20:47:01,079 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 08:46:30" (3/4) ... [2020-10-25 20:47:01,082 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-25 20:47:01,110 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-10-25 20:47:01,112 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-25 20:47:01,113 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-25 20:47:01,115 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-25 20:47:01,302 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-25 20:47:01,302 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-25 20:47:01,303 INFO L168 Benchmark]: Toolchain (without parser) took 33799.69 ms. Allocated memory was 56.6 MB in the beginning and 1.5 GB in the end (delta: 1.4 GB). Free memory was 38.5 MB in the beginning and 670.1 MB in the end (delta: -631.7 MB). Peak memory consumption was 818.3 MB. Max. memory is 16.1 GB. [2020-10-25 20:47:01,303 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 46.1 MB. Free memory was 24.1 MB in the beginning and 24.1 MB in the end (delta: 63.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 20:47:01,304 INFO L168 Benchmark]: CACSL2BoogieTranslator took 892.53 ms. Allocated memory is still 56.6 MB. Free memory was 37.8 MB in the beginning and 31.5 MB in the end (delta: 6.3 MB). Peak memory consumption was 18.4 MB. Max. memory is 16.1 GB. [2020-10-25 20:47:01,304 INFO L168 Benchmark]: Boogie Procedure Inliner took 162.75 ms. Allocated memory is still 56.6 MB. Free memory was 31.3 MB in the beginning and 32.0 MB in the end (delta: -689.2 kB). Peak memory consumption was 14.9 MB. Max. memory is 16.1 GB. [2020-10-25 20:47:01,305 INFO L168 Benchmark]: Boogie Preprocessor took 115.57 ms. Allocated memory is still 56.6 MB. Free memory was 32.0 MB in the beginning and 25.7 MB in the end (delta: 6.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-10-25 20:47:01,305 INFO L168 Benchmark]: RCFGBuilder took 1860.87 ms. Allocated memory was 56.6 MB in the beginning and 96.5 MB in the end (delta: 39.8 MB). Free memory was 25.5 MB in the beginning and 57.4 MB in the end (delta: -31.8 MB). Peak memory consumption was 29.7 MB. Max. memory is 16.1 GB. [2020-10-25 20:47:01,306 INFO L168 Benchmark]: TraceAbstraction took 30530.38 ms. Allocated memory was 96.5 MB in the beginning and 1.5 GB in the end (delta: 1.4 GB). Free memory was 56.8 MB in the beginning and 690.1 MB in the end (delta: -633.3 MB). Peak memory consumption was 775.6 MB. Max. memory is 16.1 GB. [2020-10-25 20:47:01,306 INFO L168 Benchmark]: Witness Printer took 223.51 ms. Allocated memory is still 1.5 GB. Free memory was 689.0 MB in the beginning and 670.1 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-10-25 20:47:01,309 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 46.1 MB. Free memory was 24.1 MB in the beginning and 24.1 MB in the end (delta: 63.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 892.53 ms. Allocated memory is still 56.6 MB. Free memory was 37.8 MB in the beginning and 31.5 MB in the end (delta: 6.3 MB). Peak memory consumption was 18.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 162.75 ms. Allocated memory is still 56.6 MB. Free memory was 31.3 MB in the beginning and 32.0 MB in the end (delta: -689.2 kB). Peak memory consumption was 14.9 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 115.57 ms. Allocated memory is still 56.6 MB. Free memory was 32.0 MB in the beginning and 25.7 MB in the end (delta: 6.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1860.87 ms. Allocated memory was 56.6 MB in the beginning and 96.5 MB in the end (delta: 39.8 MB). Free memory was 25.5 MB in the beginning and 57.4 MB in the end (delta: -31.8 MB). Peak memory consumption was 29.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 30530.38 ms. Allocated memory was 96.5 MB in the beginning and 1.5 GB in the end (delta: 1.4 GB). Free memory was 56.8 MB in the beginning and 690.1 MB in the end (delta: -633.3 MB). Peak memory consumption was 775.6 MB. Max. memory is 16.1 GB. * Witness Printer took 223.51 ms. Allocated memory is still 1.5 GB. Free memory was 689.0 MB in the beginning and 670.1 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 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: 22]: Loop Invariant Derived loop invariant: (((((((a15 <= 5 && a24 == 1) || (7 <= a15 && a24 == 1)) || (a15 <= 5 && a12 + 49 <= 0)) || ((0 < a12 + 43 && a12 <= 11) && a24 == 1)) || ((9 <= a21 && a24 == 1) && a21 <= 9)) || (((8 <= a21 && a24 == 1) && a12 <= 80) && a21 <= 8)) || (((a12 + 49 <= 0 && 7 <= a15) && a15 <= 8) && 10 <= a21)) || (a24 == 1 && a21 <= 6) - InvariantResult [Line: 876]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 882]: Loop Invariant Derived loop invariant: (((((((a15 <= 5 && a24 == 1) || (7 <= a15 && a24 == 1)) || (a15 <= 5 && a12 + 49 <= 0)) || ((0 < a12 + 43 && a12 <= 11) && a24 == 1)) || ((9 <= a21 && a24 == 1) && a21 <= 9)) || (((8 <= a21 && a24 == 1) && a12 <= 80) && a21 <= 8)) || (((a12 + 49 <= 0 && 7 <= a15) && a15 <= 8) && 10 <= a21)) || (a24 == 1 && a21 <= 6) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 246 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 29.8s, OverallIterations: 15, TraceHistogramMax: 8, AutomataDifference: 15.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1961 SDtfs, 2061 SDslu, 81 SDs, 0 SdLazy, 7626 SolverSat, 943 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 11.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3456 GetRequests, 3423 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4098occurred in iteration=14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 15 MinimizatonAttempts, 3204 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 75 NumberOfFragments, 163 HoareAnnotationTreeSize, 3 FomulaSimplifications, 2972 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 3 FomulaSimplificationsInter, 586 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.7s SatisfiabilityAnalysisTime, 4.4s InterpolantComputationTime, 9961 NumberOfCodeBlocks, 9961 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 9941 ConstructedInterpolants, 0 QuantifiedInterpolants, 16077767 SizeOfPredicates, 4 NumberOfNonLiveVariables, 4340 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 20 InterpolantComputations, 15 PerfectInterpolantSequences, 19009/20136 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...