./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/openssl-simplified/s3_srvr_1a.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9a8b2e8d 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_1.3.100.v20150511-1540.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/openssl-simplified/s3_srvr_1a.cil.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 ca35bd50d888047fd624bd95d9bb19453630de07 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-19 22:24:14,797 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 22:24:14,799 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 22:24:14,822 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 22:24:14,823 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 22:24:14,824 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 22:24:14,825 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 22:24:14,827 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 22:24:14,840 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 22:24:14,841 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 22:24:14,842 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 22:24:14,843 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 22:24:14,843 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 22:24:14,844 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 22:24:14,845 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 22:24:14,846 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 22:24:14,847 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 22:24:14,848 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 22:24:14,850 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 22:24:14,851 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 22:24:14,853 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 22:24:14,853 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 22:24:14,855 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 22:24:14,855 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 22:24:14,857 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 22:24:14,858 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 22:24:14,858 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 22:24:14,859 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 22:24:14,859 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 22:24:14,860 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 22:24:14,861 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 22:24:14,861 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 22:24:14,862 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 22:24:14,863 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 22:24:14,864 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 22:24:14,864 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 22:24:14,865 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 22:24:14,865 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 22:24:14,865 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 22:24:14,866 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 22:24:14,867 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 22:24:14,867 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-19 22:24:14,889 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 22:24:14,889 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 22:24:14,890 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 22:24:14,891 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 22:24:14,891 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 22:24:14,891 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 22:24:14,891 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 22:24:14,892 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 22:24:14,892 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 22:24:14,892 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 22:24:14,892 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-19 22:24:14,893 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-19 22:24:14,893 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-19 22:24:14,893 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 22:24:14,893 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-19 22:24:14,894 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 22:24:14,894 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-19 22:24:14,894 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 22:24:14,894 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 22:24:14,895 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-19 22:24:14,895 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-19 22:24:14,895 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 22:24:14,895 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 22:24:14,896 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-19 22:24:14,896 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-19 22:24:14,896 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 22:24:14,896 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-19 22:24:14,897 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-19 22:24:14,897 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 22:24:14,897 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 -> ca35bd50d888047fd624bd95d9bb19453630de07 [2020-10-19 22:24:15,095 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 22:24:15,107 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 22:24:15,111 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 22:24:15,112 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 22:24:15,113 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 22:24:15,113 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/openssl-simplified/s3_srvr_1a.cil.c [2020-10-19 22:24:15,181 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f9e50e6a/53349720a83141888c91201ee520ef3c/FLAG650eab61b [2020-10-19 22:24:15,658 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 22:24:15,660 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/openssl-simplified/s3_srvr_1a.cil.c [2020-10-19 22:24:15,670 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f9e50e6a/53349720a83141888c91201ee520ef3c/FLAG650eab61b [2020-10-19 22:24:16,059 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f9e50e6a/53349720a83141888c91201ee520ef3c [2020-10-19 22:24:16,063 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 22:24:16,072 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-19 22:24:16,075 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 22:24:16,076 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 22:24:16,079 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 22:24:16,081 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 10:24:16" (1/1) ... [2020-10-19 22:24:16,084 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29797435 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:24:16, skipping insertion in model container [2020-10-19 22:24:16,084 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 10:24:16" (1/1) ... [2020-10-19 22:24:16,092 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 22:24:16,123 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 22:24:16,414 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 22:24:16,424 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 22:24:16,451 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 22:24:16,467 INFO L208 MainTranslator]: Completed translation [2020-10-19 22:24:16,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:24:16 WrapperNode [2020-10-19 22:24:16,468 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 22:24:16,468 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-19 22:24:16,469 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-19 22:24:16,469 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-19 22:24:16,477 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:24:16" (1/1) ... [2020-10-19 22:24:16,484 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:24:16" (1/1) ... [2020-10-19 22:24:16,504 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-19 22:24:16,505 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 22:24:16,505 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 22:24:16,505 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 22:24:16,513 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:24:16" (1/1) ... [2020-10-19 22:24:16,514 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:24:16" (1/1) ... [2020-10-19 22:24:16,516 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:24:16" (1/1) ... [2020-10-19 22:24:16,516 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:24:16" (1/1) ... [2020-10-19 22:24:16,520 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:24:16" (1/1) ... [2020-10-19 22:24:16,526 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:24:16" (1/1) ... [2020-10-19 22:24:16,528 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:24:16" (1/1) ... [2020-10-19 22:24:16,530 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 22:24:16,531 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 22:24:16,531 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 22:24:16,531 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 22:24:16,532 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:24:16" (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 [2020-10-19 22:24:16,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-19 22:24:16,601 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 22:24:16,601 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 22:24:16,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 22:24:16,972 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 22:24:16,972 INFO L298 CfgBuilder]: Removed 7 assume(true) statements. [2020-10-19 22:24:16,974 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 10:24:16 BoogieIcfgContainer [2020-10-19 22:24:16,974 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 22:24:16,976 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-19 22:24:16,982 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-19 22:24:16,986 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-19 22:24:16,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.10 10:24:16" (1/3) ... [2020-10-19 22:24:16,987 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58763d7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 10:24:16, skipping insertion in model container [2020-10-19 22:24:16,987 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:24:16" (2/3) ... [2020-10-19 22:24:16,988 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58763d7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 10:24:16, skipping insertion in model container [2020-10-19 22:24:16,988 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 10:24:16" (3/3) ... [2020-10-19 22:24:16,989 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr_1a.cil.c [2020-10-19 22:24:17,001 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-19 22:24:17,008 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-19 22:24:17,021 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-19 22:24:17,043 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-19 22:24:17,043 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-19 22:24:17,044 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-19 22:24:17,044 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 22:24:17,044 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 22:24:17,044 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-19 22:24:17,044 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 22:24:17,044 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-19 22:24:17,059 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states. [2020-10-19 22:24:17,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-19 22:24:17,065 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:24:17,066 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-19 22:24:17,067 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:24:17,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:24:17,072 INFO L82 PathProgramCache]: Analyzing trace with hash 28699930, now seen corresponding path program 1 times [2020-10-19 22:24:17,079 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:24:17,079 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570593311] [2020-10-19 22:24:17,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:24:17,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:24:17,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 22:24:17,246 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570593311] [2020-10-19 22:24:17,247 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:24:17,247 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:24:17,248 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126247252] [2020-10-19 22:24:17,252 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:24:17,253 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:24:17,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:24:17,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:24:17,267 INFO L87 Difference]: Start difference. First operand 47 states. Second operand 3 states. [2020-10-19 22:24:17,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:24:17,368 INFO L93 Difference]: Finished difference Result 132 states and 219 transitions. [2020-10-19 22:24:17,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:24:17,370 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-10-19 22:24:17,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:24:17,382 INFO L225 Difference]: With dead ends: 132 [2020-10-19 22:24:17,383 INFO L226 Difference]: Without dead ends: 79 [2020-10-19 22:24:17,386 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 [2020-10-19 22:24:17,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2020-10-19 22:24:17,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2020-10-19 22:24:17,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-10-19 22:24:17,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 121 transitions. [2020-10-19 22:24:17,433 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 121 transitions. Word has length 5 [2020-10-19 22:24:17,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:24:17,433 INFO L481 AbstractCegarLoop]: Abstraction has 79 states and 121 transitions. [2020-10-19 22:24:17,433 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:24:17,434 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 121 transitions. [2020-10-19 22:24:17,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-19 22:24:17,434 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:24:17,435 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:24:17,435 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-19 22:24:17,435 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:24:17,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:24:17,436 INFO L82 PathProgramCache]: Analyzing trace with hash -1485309586, now seen corresponding path program 1 times [2020-10-19 22:24:17,436 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:24:17,436 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582521769] [2020-10-19 22:24:17,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:24:17,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:24:17,477 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 22:24:17,478 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582521769] [2020-10-19 22:24:17,478 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:24:17,478 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:24:17,478 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981103171] [2020-10-19 22:24:17,480 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:24:17,480 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:24:17,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:24:17,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:24:17,481 INFO L87 Difference]: Start difference. First operand 79 states and 121 transitions. Second operand 3 states. [2020-10-19 22:24:17,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:24:17,562 INFO L93 Difference]: Finished difference Result 156 states and 246 transitions. [2020-10-19 22:24:17,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:24:17,563 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-19 22:24:17,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:24:17,565 INFO L225 Difference]: With dead ends: 156 [2020-10-19 22:24:17,565 INFO L226 Difference]: Without dead ends: 116 [2020-10-19 22:24:17,566 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 [2020-10-19 22:24:17,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2020-10-19 22:24:17,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2020-10-19 22:24:17,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2020-10-19 22:24:17,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 175 transitions. [2020-10-19 22:24:17,584 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 175 transitions. Word has length 10 [2020-10-19 22:24:17,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:24:17,584 INFO L481 AbstractCegarLoop]: Abstraction has 116 states and 175 transitions. [2020-10-19 22:24:17,584 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:24:17,585 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 175 transitions. [2020-10-19 22:24:17,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-19 22:24:17,586 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:24:17,586 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:24:17,586 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-19 22:24:17,587 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:24:17,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:24:17,587 INFO L82 PathProgramCache]: Analyzing trace with hash 1152886494, now seen corresponding path program 1 times [2020-10-19 22:24:17,588 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:24:17,588 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162080713] [2020-10-19 22:24:17,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:24:17,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:24:17,645 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-19 22:24:17,646 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162080713] [2020-10-19 22:24:17,646 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:24:17,646 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:24:17,647 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789033586] [2020-10-19 22:24:17,647 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:24:17,647 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:24:17,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:24:17,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:24:17,648 INFO L87 Difference]: Start difference. First operand 116 states and 175 transitions. Second operand 3 states. [2020-10-19 22:24:17,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:24:17,711 INFO L93 Difference]: Finished difference Result 230 states and 355 transitions. [2020-10-19 22:24:17,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:24:17,711 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2020-10-19 22:24:17,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:24:17,713 INFO L225 Difference]: With dead ends: 230 [2020-10-19 22:24:17,714 INFO L226 Difference]: Without dead ends: 153 [2020-10-19 22:24:17,714 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 [2020-10-19 22:24:17,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2020-10-19 22:24:17,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2020-10-19 22:24:17,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2020-10-19 22:24:17,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 230 transitions. [2020-10-19 22:24:17,748 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 230 transitions. Word has length 16 [2020-10-19 22:24:17,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:24:17,748 INFO L481 AbstractCegarLoop]: Abstraction has 153 states and 230 transitions. [2020-10-19 22:24:17,749 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:24:17,749 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 230 transitions. [2020-10-19 22:24:17,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-19 22:24:17,753 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:24:17,754 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:24:17,754 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-19 22:24:17,754 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:24:17,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:24:17,754 INFO L82 PathProgramCache]: Analyzing trace with hash -77104047, now seen corresponding path program 1 times [2020-10-19 22:24:17,755 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:24:17,758 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096871313] [2020-10-19 22:24:17,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:24:17,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:24:17,837 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-19 22:24:17,837 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096871313] [2020-10-19 22:24:17,838 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:24:17,838 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:24:17,838 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329406292] [2020-10-19 22:24:17,838 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:24:17,839 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:24:17,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:24:17,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:24:17,840 INFO L87 Difference]: Start difference. First operand 153 states and 230 transitions. Second operand 3 states. [2020-10-19 22:24:17,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:24:17,926 INFO L93 Difference]: Finished difference Result 321 states and 484 transitions. [2020-10-19 22:24:17,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:24:17,927 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 31 [2020-10-19 22:24:17,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:24:17,929 INFO L225 Difference]: With dead ends: 321 [2020-10-19 22:24:17,929 INFO L226 Difference]: Without dead ends: 170 [2020-10-19 22:24:17,930 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 [2020-10-19 22:24:17,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2020-10-19 22:24:17,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 168. [2020-10-19 22:24:17,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2020-10-19 22:24:17,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 246 transitions. [2020-10-19 22:24:17,959 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 246 transitions. Word has length 31 [2020-10-19 22:24:17,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:24:17,959 INFO L481 AbstractCegarLoop]: Abstraction has 168 states and 246 transitions. [2020-10-19 22:24:17,960 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:24:17,960 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 246 transitions. [2020-10-19 22:24:17,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-19 22:24:17,964 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:24:17,965 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:24:17,965 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-19 22:24:17,965 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:24:17,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:24:17,966 INFO L82 PathProgramCache]: Analyzing trace with hash 1611839695, now seen corresponding path program 1 times [2020-10-19 22:24:17,966 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:24:17,966 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720589469] [2020-10-19 22:24:17,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:24:17,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:24:18,037 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-19 22:24:18,037 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720589469] [2020-10-19 22:24:18,037 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:24:18,038 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:24:18,038 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477793415] [2020-10-19 22:24:18,038 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:24:18,039 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:24:18,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:24:18,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:24:18,040 INFO L87 Difference]: Start difference. First operand 168 states and 246 transitions. Second operand 3 states. [2020-10-19 22:24:18,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:24:18,171 INFO L93 Difference]: Finished difference Result 378 states and 567 transitions. [2020-10-19 22:24:18,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:24:18,172 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 31 [2020-10-19 22:24:18,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:24:18,173 INFO L225 Difference]: With dead ends: 378 [2020-10-19 22:24:18,174 INFO L226 Difference]: Without dead ends: 212 [2020-10-19 22:24:18,175 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 [2020-10-19 22:24:18,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2020-10-19 22:24:18,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 207. [2020-10-19 22:24:18,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 207 states. [2020-10-19 22:24:18,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 285 transitions. [2020-10-19 22:24:18,190 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 285 transitions. Word has length 31 [2020-10-19 22:24:18,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:24:18,190 INFO L481 AbstractCegarLoop]: Abstraction has 207 states and 285 transitions. [2020-10-19 22:24:18,191 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:24:18,191 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 285 transitions. [2020-10-19 22:24:18,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-10-19 22:24:18,193 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:24:18,193 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 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] [2020-10-19 22:24:18,194 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-19 22:24:18,194 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:24:18,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:24:18,194 INFO L82 PathProgramCache]: Analyzing trace with hash -359756882, now seen corresponding path program 1 times [2020-10-19 22:24:18,195 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:24:18,195 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596247864] [2020-10-19 22:24:18,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:24:18,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:24:18,239 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-19 22:24:18,239 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596247864] [2020-10-19 22:24:18,239 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:24:18,240 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:24:18,240 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919387562] [2020-10-19 22:24:18,240 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:24:18,240 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:24:18,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:24:18,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:24:18,242 INFO L87 Difference]: Start difference. First operand 207 states and 285 transitions. Second operand 3 states. [2020-10-19 22:24:18,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:24:18,287 INFO L93 Difference]: Finished difference Result 415 states and 578 transitions. [2020-10-19 22:24:18,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:24:18,288 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 45 [2020-10-19 22:24:18,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:24:18,290 INFO L225 Difference]: With dead ends: 415 [2020-10-19 22:24:18,291 INFO L226 Difference]: Without dead ends: 265 [2020-10-19 22:24:18,292 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 [2020-10-19 22:24:18,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2020-10-19 22:24:18,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 263. [2020-10-19 22:24:18,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 263 states. [2020-10-19 22:24:18,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 365 transitions. [2020-10-19 22:24:18,305 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 365 transitions. Word has length 45 [2020-10-19 22:24:18,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:24:18,306 INFO L481 AbstractCegarLoop]: Abstraction has 263 states and 365 transitions. [2020-10-19 22:24:18,306 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:24:18,306 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 365 transitions. [2020-10-19 22:24:18,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-10-19 22:24:18,308 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:24:18,309 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:24:18,309 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-19 22:24:18,309 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:24:18,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:24:18,317 INFO L82 PathProgramCache]: Analyzing trace with hash -1572307813, now seen corresponding path program 1 times [2020-10-19 22:24:18,317 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:24:18,317 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363815104] [2020-10-19 22:24:18,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:24:18,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:24:18,366 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-19 22:24:18,366 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363815104] [2020-10-19 22:24:18,367 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:24:18,367 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:24:18,367 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573587178] [2020-10-19 22:24:18,367 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:24:18,368 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:24:18,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:24:18,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:24:18,370 INFO L87 Difference]: Start difference. First operand 263 states and 365 transitions. Second operand 3 states. [2020-10-19 22:24:18,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:24:18,471 INFO L93 Difference]: Finished difference Result 522 states and 739 transitions. [2020-10-19 22:24:18,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:24:18,471 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 48 [2020-10-19 22:24:18,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:24:18,473 INFO L225 Difference]: With dead ends: 522 [2020-10-19 22:24:18,473 INFO L226 Difference]: Without dead ends: 183 [2020-10-19 22:24:18,474 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 [2020-10-19 22:24:18,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2020-10-19 22:24:18,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 180. [2020-10-19 22:24:18,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180 states. [2020-10-19 22:24:18,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 233 transitions. [2020-10-19 22:24:18,491 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 233 transitions. Word has length 48 [2020-10-19 22:24:18,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:24:18,491 INFO L481 AbstractCegarLoop]: Abstraction has 180 states and 233 transitions. [2020-10-19 22:24:18,492 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:24:18,492 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 233 transitions. [2020-10-19 22:24:18,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-10-19 22:24:18,494 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:24:18,494 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:24:18,494 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-19 22:24:18,494 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:24:18,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:24:18,495 INFO L82 PathProgramCache]: Analyzing trace with hash -1927293386, now seen corresponding path program 1 times [2020-10-19 22:24:18,495 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:24:18,495 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029277248] [2020-10-19 22:24:18,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:24:18,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:24:18,559 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-10-19 22:24:18,560 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029277248] [2020-10-19 22:24:18,560 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:24:18,560 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:24:18,560 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031422367] [2020-10-19 22:24:18,562 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:24:18,562 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:24:18,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:24:18,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:24:18,563 INFO L87 Difference]: Start difference. First operand 180 states and 233 transitions. Second operand 3 states. [2020-10-19 22:24:18,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:24:18,578 INFO L93 Difference]: Finished difference Result 273 states and 334 transitions. [2020-10-19 22:24:18,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:24:18,579 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 76 [2020-10-19 22:24:18,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:24:18,579 INFO L225 Difference]: With dead ends: 273 [2020-10-19 22:24:18,579 INFO L226 Difference]: Without dead ends: 0 [2020-10-19 22:24:18,580 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 [2020-10-19 22:24:18,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-19 22:24:18,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-19 22:24:18,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-19 22:24:18,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-19 22:24:18,583 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 76 [2020-10-19 22:24:18,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:24:18,583 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 22:24:18,584 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:24:18,584 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-19 22:24:18,585 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-19 22:24:18,585 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-19 22:24:18,588 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-19 22:24:19,059 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-10-19 22:24:19,059 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-19 22:24:19,060 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-19 22:24:19,060 INFO L277 CegarLoopResult]: At program point L218(lines 10 219) the Hoare annotation is: true [2020-10-19 22:24:19,060 INFO L274 CegarLoopResult]: For program point L70(lines 70 187) no Hoare annotation was computed. [2020-10-19 22:24:19,060 INFO L274 CegarLoopResult]: For program point L62(lines 62 191) no Hoare annotation was computed. [2020-10-19 22:24:19,060 INFO L274 CegarLoopResult]: For program point L153-1(lines 76 185) no Hoare annotation was computed. [2020-10-19 22:24:19,060 INFO L274 CegarLoopResult]: For program point L54(lines 54 195) no Hoare annotation was computed. [2020-10-19 22:24:19,061 INFO L274 CegarLoopResult]: For program point L87-1(lines 76 185) no Hoare annotation was computed. [2020-10-19 22:24:19,061 INFO L270 CegarLoopResult]: At program point L178(lines 24 213) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_main_~blastFlag~0 3))) (or (and (<= 8640 ULTIMATE.start_main_~s__state~0) (not (= ULTIMATE.start_main_~s__hit~0 0)) .cse0) (= ULTIMATE.start_main_~blastFlag~0 1) (= ULTIMATE.start_main_~blastFlag~0 2) (= ULTIMATE.start_main_~blastFlag~0 0) (and .cse0 (<= 8672 ULTIMATE.start_main_~s__state~0)))) [2020-10-19 22:24:19,061 INFO L274 CegarLoopResult]: For program point L46(lines 46 199) no Hoare annotation was computed. [2020-10-19 22:24:19,061 INFO L274 CegarLoopResult]: For program point L137(lines 137 141) no Hoare annotation was computed. [2020-10-19 22:24:19,061 INFO L270 CegarLoopResult]: At program point L71(lines 70 187) the Hoare annotation is: (let ((.cse0 (<= 8640 ULTIMATE.start_main_~s__state~0))) (or (and .cse0 (not (= ULTIMATE.start_main_~s__hit~0 0)) (<= ULTIMATE.start_main_~blastFlag~0 3)) (and .cse0 (= ULTIMATE.start_main_~blastFlag~0 2)) (and .cse0 (= ULTIMATE.start_main_~blastFlag~0 0)) (and .cse0 (= ULTIMATE.start_main_~blastFlag~0 1)))) [2020-10-19 22:24:19,062 INFO L274 CegarLoopResult]: For program point L38(lines 38 203) no Hoare annotation was computed. [2020-10-19 22:24:19,062 INFO L270 CegarLoopResult]: At program point L63(lines 62 191) the Hoare annotation is: (or (= ULTIMATE.start_main_~blastFlag~0 1) (= ULTIMATE.start_main_~blastFlag~0 2) (= ULTIMATE.start_main_~blastFlag~0 0)) [2020-10-19 22:24:19,062 INFO L270 CegarLoopResult]: At program point L55(lines 54 195) the Hoare annotation is: (or (= ULTIMATE.start_main_~blastFlag~0 1) (= ULTIMATE.start_main_~blastFlag~0 2) (= ULTIMATE.start_main_~blastFlag~0 0)) [2020-10-19 22:24:19,062 INFO L270 CegarLoopResult]: At program point L47(lines 46 199) the Hoare annotation is: (or (= ULTIMATE.start_main_~blastFlag~0 1) (= ULTIMATE.start_main_~blastFlag~0 2) (= ULTIMATE.start_main_~blastFlag~0 0)) [2020-10-19 22:24:19,062 INFO L274 CegarLoopResult]: For program point L80-1(lines 80 82) no Hoare annotation was computed. [2020-10-19 22:24:19,062 INFO L274 CegarLoopResult]: For program point L171-1(lines 76 185) no Hoare annotation was computed. [2020-10-19 22:24:19,063 INFO L270 CegarLoopResult]: At program point L39(lines 38 203) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_main_~s__state~0 8512))) (or (and .cse0 (= ULTIMATE.start_main_~blastFlag~0 2)) (and (= ULTIMATE.start_main_~blastFlag~0 1) .cse0) (and .cse0 (= ULTIMATE.start_main_~blastFlag~0 0)))) [2020-10-19 22:24:19,063 INFO L274 CegarLoopResult]: For program point L31(lines 31 206) no Hoare annotation was computed. [2020-10-19 22:24:19,063 INFO L270 CegarLoopResult]: At program point L122(lines 115 124) the Hoare annotation is: (or (= ULTIMATE.start_main_~blastFlag~0 1) (= ULTIMATE.start_main_~blastFlag~0 2) (= ULTIMATE.start_main_~blastFlag~0 0)) [2020-10-19 22:24:19,063 INFO L270 CegarLoopResult]: At program point L114(lines 107 125) the Hoare annotation is: (or (= ULTIMATE.start_main_~blastFlag~0 1) (= ULTIMATE.start_main_~blastFlag~0 2) (= ULTIMATE.start_main_~blastFlag~0 0)) [2020-10-19 22:24:19,063 INFO L274 CegarLoopResult]: For program point L164-1(lines 164 166) no Hoare annotation was computed. [2020-10-19 22:24:19,063 INFO L270 CegarLoopResult]: At program point L32(lines 31 206) the Hoare annotation is: (or (= ULTIMATE.start_main_~blastFlag~0 1) (= ULTIMATE.start_main_~blastFlag~0 2) (= ULTIMATE.start_main_~blastFlag~0 0)) [2020-10-19 22:24:19,064 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-19 22:24:19,064 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-19 22:24:19,064 INFO L274 CegarLoopResult]: For program point L107(lines 107 125) no Hoare annotation was computed. [2020-10-19 22:24:19,064 INFO L274 CegarLoopResult]: For program point L74(lines 74 185) no Hoare annotation was computed. [2020-10-19 22:24:19,064 INFO L274 CegarLoopResult]: For program point L66(lines 66 189) no Hoare annotation was computed. [2020-10-19 22:24:19,064 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-19 22:24:19,064 INFO L274 CegarLoopResult]: For program point L58(lines 58 193) no Hoare annotation was computed. [2020-10-19 22:24:19,065 INFO L274 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-10-19 22:24:19,065 INFO L277 CegarLoopResult]: At program point L215(lines 10 219) the Hoare annotation is: true [2020-10-19 22:24:19,065 INFO L274 CegarLoopResult]: For program point L116(lines 116 120) no Hoare annotation was computed. [2020-10-19 22:24:19,065 INFO L274 CegarLoopResult]: For program point L50(lines 50 197) no Hoare annotation was computed. [2020-10-19 22:24:19,065 INFO L274 CegarLoopResult]: For program point L174(lines 174 176) no Hoare annotation was computed. [2020-10-19 22:24:19,065 INFO L274 CegarLoopResult]: For program point L108(lines 108 112) no Hoare annotation was computed. [2020-10-19 22:24:19,066 INFO L270 CegarLoopResult]: At program point L75(lines 74 185) the Hoare annotation is: (and (<= ULTIMATE.start_main_~blastFlag~0 3) (<= 8672 ULTIMATE.start_main_~s__state~0)) [2020-10-19 22:24:19,066 INFO L274 CegarLoopResult]: For program point L42(lines 42 201) no Hoare annotation was computed. [2020-10-19 22:24:19,066 INFO L270 CegarLoopResult]: At program point L67(lines 66 189) the Hoare annotation is: (let ((.cse0 (<= 8640 ULTIMATE.start_main_~s__state~0))) (or (and .cse0 (not (= ULTIMATE.start_main_~s__hit~0 0)) (<= ULTIMATE.start_main_~blastFlag~0 3)) (and .cse0 (= ULTIMATE.start_main_~blastFlag~0 2)) (and .cse0 (= ULTIMATE.start_main_~blastFlag~0 0)) (and .cse0 (= ULTIMATE.start_main_~blastFlag~0 1)))) [2020-10-19 22:24:19,066 INFO L274 CegarLoopResult]: For program point L34(lines 34 205) no Hoare annotation was computed. [2020-10-19 22:24:19,066 INFO L270 CegarLoopResult]: At program point L59(lines 58 193) the Hoare annotation is: (or (= ULTIMATE.start_main_~blastFlag~0 1) (= ULTIMATE.start_main_~blastFlag~0 2) (= ULTIMATE.start_main_~blastFlag~0 0)) [2020-10-19 22:24:19,066 INFO L270 CegarLoopResult]: At program point L51(lines 50 197) the Hoare annotation is: (or (= ULTIMATE.start_main_~blastFlag~0 1) (= ULTIMATE.start_main_~blastFlag~0 2) (= ULTIMATE.start_main_~blastFlag~0 0)) [2020-10-19 22:24:19,067 INFO L270 CegarLoopResult]: At program point L175(lines 10 219) the Hoare annotation is: false [2020-10-19 22:24:19,067 INFO L270 CegarLoopResult]: At program point L43(lines 42 201) the Hoare annotation is: (or (= ULTIMATE.start_main_~blastFlag~0 1) (= ULTIMATE.start_main_~blastFlag~0 2) (= ULTIMATE.start_main_~blastFlag~0 0)) [2020-10-19 22:24:19,067 INFO L270 CegarLoopResult]: At program point L35(lines 34 205) the Hoare annotation is: (or (= ULTIMATE.start_main_~blastFlag~0 1) (= ULTIMATE.start_main_~blastFlag~0 2) (= ULTIMATE.start_main_~blastFlag~0 0)) [2020-10-19 22:24:19,091 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.10 10:24:19 BoogieIcfgContainer [2020-10-19 22:24:19,091 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-19 22:24:19,092 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 22:24:19,092 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 22:24:19,092 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 22:24:19,093 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 10:24:16" (3/4) ... [2020-10-19 22:24:19,096 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-19 22:24:19,112 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-10-19 22:24:19,113 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-19 22:24:19,113 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-19 22:24:19,113 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-19 22:24:19,196 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-19 22:24:19,199 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 22:24:19,201 INFO L168 Benchmark]: Toolchain (without parser) took 3135.91 ms. Allocated memory was 35.1 MB in the beginning and 57.1 MB in the end (delta: 22.0 MB). Free memory was 12.0 MB in the beginning and 26.3 MB in the end (delta: -14.2 MB). Peak memory consumption was 7.8 MB. Max. memory is 14.3 GB. [2020-10-19 22:24:19,206 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 33.0 MB. Free memory was 18.2 MB in the beginning and 18.2 MB in the end (delta: 40.2 kB). Peak memory consumption was 40.2 kB. Max. memory is 14.3 GB. [2020-10-19 22:24:19,207 INFO L168 Benchmark]: CACSL2BoogieTranslator took 392.66 ms. Allocated memory was 35.1 MB in the beginning and 43.5 MB in the end (delta: 8.4 MB). Free memory was 11.2 MB in the beginning and 22.4 MB in the end (delta: -11.1 MB). Peak memory consumption was 10.8 MB. Max. memory is 14.3 GB. [2020-10-19 22:24:19,207 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.92 ms. Allocated memory is still 43.5 MB. Free memory was 22.4 MB in the beginning and 20.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 14.3 GB. [2020-10-19 22:24:19,208 INFO L168 Benchmark]: Boogie Preprocessor took 25.60 ms. Allocated memory is still 43.5 MB. Free memory was 20.5 MB in the beginning and 19.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 14.3 GB. [2020-10-19 22:24:19,208 INFO L168 Benchmark]: RCFGBuilder took 443.84 ms. Allocated memory was 43.5 MB in the beginning and 46.1 MB in the end (delta: 2.6 MB). Free memory was 19.0 MB in the beginning and 11.5 MB in the end (delta: 7.6 MB). Peak memory consumption was 10.2 MB. Max. memory is 14.3 GB. [2020-10-19 22:24:19,209 INFO L168 Benchmark]: TraceAbstraction took 2115.72 ms. Allocated memory was 46.1 MB in the beginning and 57.1 MB in the end (delta: 11.0 MB). Free memory was 11.1 MB in the beginning and 31.4 MB in the end (delta: -20.3 MB). Peak memory consumption was 12.2 MB. Max. memory is 14.3 GB. [2020-10-19 22:24:19,214 INFO L168 Benchmark]: Witness Printer took 107.52 ms. Allocated memory is still 57.1 MB. Free memory was 31.4 MB in the beginning and 26.3 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 14.3 GB. [2020-10-19 22:24:19,218 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 33.0 MB. Free memory was 18.2 MB in the beginning and 18.2 MB in the end (delta: 40.2 kB). Peak memory consumption was 40.2 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 392.66 ms. Allocated memory was 35.1 MB in the beginning and 43.5 MB in the end (delta: 8.4 MB). Free memory was 11.2 MB in the beginning and 22.4 MB in the end (delta: -11.1 MB). Peak memory consumption was 10.8 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 35.92 ms. Allocated memory is still 43.5 MB. Free memory was 22.4 MB in the beginning and 20.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 25.60 ms. Allocated memory is still 43.5 MB. Free memory was 20.5 MB in the beginning and 19.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 14.3 GB. * RCFGBuilder took 443.84 ms. Allocated memory was 43.5 MB in the beginning and 46.1 MB in the end (delta: 2.6 MB). Free memory was 19.0 MB in the beginning and 11.5 MB in the end (delta: 7.6 MB). Peak memory consumption was 10.2 MB. Max. memory is 14.3 GB. * TraceAbstraction took 2115.72 ms. Allocated memory was 46.1 MB in the beginning and 57.1 MB in the end (delta: 11.0 MB). Free memory was 11.1 MB in the beginning and 31.4 MB in the end (delta: -20.3 MB). Peak memory consumption was 12.2 MB. Max. memory is 14.3 GB. * Witness Printer took 107.52 ms. Allocated memory is still 57.1 MB. Free memory was 31.4 MB in the beginning and 26.3 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: 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: 10]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 46]: Loop Invariant Derived loop invariant: (blastFlag == 1 || blastFlag == 2) || blastFlag == 0 - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 115]: Loop Invariant Derived loop invariant: (blastFlag == 1 || blastFlag == 2) || blastFlag == 0 - InvariantResult [Line: 58]: Loop Invariant Derived loop invariant: (blastFlag == 1 || blastFlag == 2) || blastFlag == 0 - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: ((s__state == 8512 && blastFlag == 2) || (blastFlag == 1 && s__state == 8512)) || (s__state == 8512 && blastFlag == 0) - InvariantResult [Line: 70]: Loop Invariant Derived loop invariant: ((((8640 <= s__state && !(s__hit == 0)) && blastFlag <= 3) || (8640 <= s__state && blastFlag == 2)) || (8640 <= s__state && blastFlag == 0)) || (8640 <= s__state && blastFlag == 1) - InvariantResult [Line: 107]: Loop Invariant Derived loop invariant: (blastFlag == 1 || blastFlag == 2) || blastFlag == 0 - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: (((((8640 <= s__state && !(s__hit == 0)) && blastFlag <= 3) || blastFlag == 1) || blastFlag == 2) || blastFlag == 0) || (blastFlag <= 3 && 8672 <= s__state) - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: (blastFlag == 1 || blastFlag == 2) || blastFlag == 0 - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: (blastFlag == 1 || blastFlag == 2) || blastFlag == 0 - InvariantResult [Line: 31]: Loop Invariant Derived loop invariant: (blastFlag == 1 || blastFlag == 2) || blastFlag == 0 - InvariantResult [Line: 42]: Loop Invariant Derived loop invariant: (blastFlag == 1 || blastFlag == 2) || blastFlag == 0 - InvariantResult [Line: 74]: Loop Invariant Derived loop invariant: blastFlag <= 3 && 8672 <= s__state - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 54]: Loop Invariant Derived loop invariant: (blastFlag == 1 || blastFlag == 2) || blastFlag == 0 - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: (blastFlag == 1 || blastFlag == 2) || blastFlag == 0 - InvariantResult [Line: 66]: Loop Invariant Derived loop invariant: ((((8640 <= s__state && !(s__hit == 0)) && blastFlag <= 3) || (8640 <= s__state && blastFlag == 2)) || (8640 <= s__state && blastFlag == 0)) || (8640 <= s__state && blastFlag == 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 47 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.5s, OverallIterations: 8, TraceHistogramMax: 6, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 613 SDtfs, 246 SDslu, 321 SDs, 0 SdLazy, 239 SolverSat, 56 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=263occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 12 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 18 LocationsWithAnnotation, 18 PreInvPairs, 85 NumberOfFragments, 226 HoareAnnotationTreeSize, 18 FomulaSimplifications, 203 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 18 FomulaSimplificationsInter, 165 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 262 NumberOfCodeBlocks, 262 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 254 ConstructedInterpolants, 0 QuantifiedInterpolants, 24506 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 218/218 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...