./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-acceleration/array_3-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_378d4c36-3585-45c9-964a-d6eada35a2ef/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_378d4c36-3585-45c9-964a-d6eada35a2ef/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_378d4c36-3585-45c9-964a-d6eada35a2ef/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_378d4c36-3585-45c9-964a-d6eada35a2ef/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-acceleration/array_3-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_378d4c36-3585-45c9-964a-d6eada35a2ef/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_378d4c36-3585-45c9-964a-d6eada35a2ef/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4090a90876c90ba415ea4bea59e2b23309410708 .......................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 09:11:22,879 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 09:11:22,880 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 09:11:22,894 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 09:11:22,895 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 09:11:22,896 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 09:11:22,898 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 09:11:22,906 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 09:11:22,910 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 09:11:22,914 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 09:11:22,915 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 09:11:22,916 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 09:11:22,916 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 09:11:22,918 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 09:11:22,919 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 09:11:22,920 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 09:11:22,921 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 09:11:22,922 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 09:11:22,924 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 09:11:22,928 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 09:11:22,931 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 09:11:22,933 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 09:11:22,935 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 09:11:22,936 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 09:11:22,939 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 09:11:22,939 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 09:11:22,940 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 09:11:22,941 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 09:11:22,941 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 09:11:22,942 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 09:11:22,942 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 09:11:22,943 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 09:11:22,943 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 09:11:22,944 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 09:11:22,945 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 09:11:22,945 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 09:11:22,945 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 09:11:22,945 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 09:11:22,946 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 09:11:22,946 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 09:11:22,947 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 09:11:22,948 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_378d4c36-3585-45c9-964a-d6eada35a2ef/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 09:11:22,960 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 09:11:22,961 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 09:11:22,962 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 09:11:22,962 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 09:11:22,962 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 09:11:22,962 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 09:11:22,962 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 09:11:22,963 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 09:11:22,963 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 09:11:22,963 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 09:11:22,963 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 09:11:22,963 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 09:11:22,964 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 09:11:22,964 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 09:11:22,964 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 09:11:22,964 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 09:11:22,964 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 09:11:22,965 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 09:11:22,965 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 09:11:22,965 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 09:11:22,965 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 09:11:22,965 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 09:11:22,966 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 09:11:22,966 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 09:11:22,966 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 09:11:22,966 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 09:11:22,967 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 09:11:22,967 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 09:11:22,967 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 -> /tmp/vcloud-vcloud-master/worker/run_dir_378d4c36-3585-45c9-964a-d6eada35a2ef/bin/uautomizer 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(__VERIFIER_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 -> 4090a90876c90ba415ea4bea59e2b23309410708 [2019-11-20 09:11:23,111 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 09:11:23,121 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 09:11:23,124 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 09:11:23,125 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 09:11:23,125 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 09:11:23,126 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_378d4c36-3585-45c9-964a-d6eada35a2ef/bin/uautomizer/../../sv-benchmarks/c/loop-acceleration/array_3-1.i [2019-11-20 09:11:23,178 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_378d4c36-3585-45c9-964a-d6eada35a2ef/bin/uautomizer/data/4df43a1c6/7a0b0d8a26f4464699245eb774e1272f/FLAG468fccb7a [2019-11-20 09:11:23,538 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 09:11:23,538 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_378d4c36-3585-45c9-964a-d6eada35a2ef/sv-benchmarks/c/loop-acceleration/array_3-1.i [2019-11-20 09:11:23,544 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_378d4c36-3585-45c9-964a-d6eada35a2ef/bin/uautomizer/data/4df43a1c6/7a0b0d8a26f4464699245eb774e1272f/FLAG468fccb7a [2019-11-20 09:11:23,905 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_378d4c36-3585-45c9-964a-d6eada35a2ef/bin/uautomizer/data/4df43a1c6/7a0b0d8a26f4464699245eb774e1272f [2019-11-20 09:11:23,908 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 09:11:23,909 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 09:11:23,909 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 09:11:23,910 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 09:11:23,913 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 09:11:23,914 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:11:23" (1/1) ... [2019-11-20 09:11:23,917 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34aed827 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:11:23, skipping insertion in model container [2019-11-20 09:11:23,917 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:11:23" (1/1) ... [2019-11-20 09:11:23,924 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 09:11:23,939 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 09:11:24,126 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 09:11:24,130 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 09:11:24,210 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 09:11:24,226 INFO L192 MainTranslator]: Completed translation [2019-11-20 09:11:24,226 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:11:24 WrapperNode [2019-11-20 09:11:24,227 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 09:11:24,227 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 09:11:24,227 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 09:11:24,228 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 09:11:24,235 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:11:24" (1/1) ... [2019-11-20 09:11:24,242 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:11:24" (1/1) ... [2019-11-20 09:11:24,260 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 09:11:24,260 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 09:11:24,260 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 09:11:24,260 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 09:11:24,268 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:11:24" (1/1) ... [2019-11-20 09:11:24,269 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:11:24" (1/1) ... [2019-11-20 09:11:24,270 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:11:24" (1/1) ... [2019-11-20 09:11:24,270 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:11:24" (1/1) ... [2019-11-20 09:11:24,274 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:11:24" (1/1) ... [2019-11-20 09:11:24,278 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:11:24" (1/1) ... [2019-11-20 09:11:24,279 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:11:24" (1/1) ... [2019-11-20 09:11:24,281 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 09:11:24,281 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 09:11:24,281 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 09:11:24,281 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 09:11:24,282 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:11:24" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_378d4c36-3585-45c9-964a-d6eada35a2ef/bin/uautomizer/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 [2019-11-20 09:11:24,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-20 09:11:24,338 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 09:11:24,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 09:11:24,338 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-20 09:11:24,338 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 09:11:24,338 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 09:11:24,610 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 09:11:24,610 INFO L285 CfgBuilder]: Removed 8 assume(true) statements. [2019-11-20 09:11:24,611 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:11:24 BoogieIcfgContainer [2019-11-20 09:11:24,612 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 09:11:24,612 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 09:11:24,613 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 09:11:24,615 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 09:11:24,615 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:11:23" (1/3) ... [2019-11-20 09:11:24,616 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19da96af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:11:24, skipping insertion in model container [2019-11-20 09:11:24,617 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:11:24" (2/3) ... [2019-11-20 09:11:24,617 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19da96af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:11:24, skipping insertion in model container [2019-11-20 09:11:24,617 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:11:24" (3/3) ... [2019-11-20 09:11:24,619 INFO L109 eAbstractionObserver]: Analyzing ICFG array_3-1.i [2019-11-20 09:11:24,628 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 09:11:24,633 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 09:11:24,643 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 09:11:24,660 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 09:11:24,660 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 09:11:24,660 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 09:11:24,661 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 09:11:24,661 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 09:11:24,661 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 09:11:24,661 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 09:11:24,661 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 09:11:24,673 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2019-11-20 09:11:24,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-20 09:11:24,677 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 09:11:24,678 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 09:11:24,678 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 09:11:24,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 09:11:24,683 INFO L82 PathProgramCache]: Analyzing trace with hash 212411183, now seen corresponding path program 1 times [2019-11-20 09:11:24,688 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 09:11:24,689 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640552091] [2019-11-20 09:11:24,689 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 09:11:24,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:11:24,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 09:11:24,792 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640552091] [2019-11-20 09:11:24,792 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 09:11:24,793 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 09:11:24,793 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540350014] [2019-11-20 09:11:24,797 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-20 09:11:24,797 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 09:11:24,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-20 09:11:24,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 09:11:24,808 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 2 states. [2019-11-20 09:11:24,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 09:11:24,820 INFO L93 Difference]: Finished difference Result 30 states and 38 transitions. [2019-11-20 09:11:24,820 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 09:11:24,821 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2019-11-20 09:11:24,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 09:11:24,827 INFO L225 Difference]: With dead ends: 30 [2019-11-20 09:11:24,827 INFO L226 Difference]: Without dead ends: 13 [2019-11-20 09:11:24,830 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 09:11:24,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2019-11-20 09:11:24,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2019-11-20 09:11:24,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-11-20 09:11:24,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2019-11-20 09:11:24,853 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 15 transitions. Word has length 8 [2019-11-20 09:11:24,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 09:11:24,854 INFO L462 AbstractCegarLoop]: Abstraction has 13 states and 15 transitions. [2019-11-20 09:11:24,854 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-20 09:11:24,854 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2019-11-20 09:11:24,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-20 09:11:24,855 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 09:11:24,855 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 09:11:24,855 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 09:11:24,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 09:11:24,855 INFO L82 PathProgramCache]: Analyzing trace with hash -2018507400, now seen corresponding path program 1 times [2019-11-20 09:11:24,855 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 09:11:24,856 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828324865] [2019-11-20 09:11:24,856 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 09:11:24,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:11:24,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 09:11:24,892 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828324865] [2019-11-20 09:11:24,892 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 09:11:24,892 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-20 09:11:24,892 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403114282] [2019-11-20 09:11:24,893 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 09:11:24,893 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 09:11:24,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 09:11:24,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 09:11:24,894 INFO L87 Difference]: Start difference. First operand 13 states and 15 transitions. Second operand 3 states. [2019-11-20 09:11:24,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 09:11:24,962 INFO L93 Difference]: Finished difference Result 32 states and 37 transitions. [2019-11-20 09:11:24,962 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 09:11:24,963 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-11-20 09:11:24,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 09:11:24,963 INFO L225 Difference]: With dead ends: 32 [2019-11-20 09:11:24,963 INFO L226 Difference]: Without dead ends: 23 [2019-11-20 09:11:24,964 INFO L630 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 [2019-11-20 09:11:24,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-11-20 09:11:24,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 17. [2019-11-20 09:11:24,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-11-20 09:11:24,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 20 transitions. [2019-11-20 09:11:24,969 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 20 transitions. Word has length 9 [2019-11-20 09:11:24,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 09:11:24,969 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 20 transitions. [2019-11-20 09:11:24,969 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 09:11:24,969 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2019-11-20 09:11:24,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-20 09:11:24,969 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 09:11:24,969 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 09:11:24,970 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 09:11:24,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 09:11:24,970 INFO L82 PathProgramCache]: Analyzing trace with hash 1562587830, now seen corresponding path program 1 times [2019-11-20 09:11:24,970 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 09:11:24,970 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444055344] [2019-11-20 09:11:24,970 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 09:11:24,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:11:25,026 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-20 09:11:25,026 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444055344] [2019-11-20 09:11:25,026 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 09:11:25,026 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-20 09:11:25,027 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326880706] [2019-11-20 09:11:25,027 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 09:11:25,027 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 09:11:25,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 09:11:25,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-20 09:11:25,028 INFO L87 Difference]: Start difference. First operand 17 states and 20 transitions. Second operand 4 states. [2019-11-20 09:11:25,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 09:11:25,102 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions. [2019-11-20 09:11:25,102 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 09:11:25,103 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-11-20 09:11:25,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 09:11:25,103 INFO L225 Difference]: With dead ends: 23 [2019-11-20 09:11:25,103 INFO L226 Difference]: Without dead ends: 19 [2019-11-20 09:11:25,104 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-20 09:11:25,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-11-20 09:11:25,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 17. [2019-11-20 09:11:25,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-11-20 09:11:25,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2019-11-20 09:11:25,107 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 11 [2019-11-20 09:11:25,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 09:11:25,108 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2019-11-20 09:11:25,108 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 09:11:25,108 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2019-11-20 09:11:25,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-20 09:11:25,109 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 09:11:25,109 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 09:11:25,109 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 09:11:25,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 09:11:25,109 INFO L82 PathProgramCache]: Analyzing trace with hash 1670186127, now seen corresponding path program 1 times [2019-11-20 09:11:25,109 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 09:11:25,110 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947949889] [2019-11-20 09:11:25,110 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 09:11:25,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:11:25,168 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-20 09:11:25,169 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947949889] [2019-11-20 09:11:25,169 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 09:11:25,169 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-20 09:11:25,169 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813057398] [2019-11-20 09:11:25,170 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 09:11:25,170 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 09:11:25,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 09:11:25,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-20 09:11:25,170 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand 5 states. [2019-11-20 09:11:25,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 09:11:25,233 INFO L93 Difference]: Finished difference Result 29 states and 34 transitions. [2019-11-20 09:11:25,234 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 09:11:25,234 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2019-11-20 09:11:25,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 09:11:25,234 INFO L225 Difference]: With dead ends: 29 [2019-11-20 09:11:25,234 INFO L226 Difference]: Without dead ends: 0 [2019-11-20 09:11:25,235 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-20 09:11:25,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-20 09:11:25,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-20 09:11:25,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-20 09:11:25,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-20 09:11:25,236 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2019-11-20 09:11:25,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 09:11:25,236 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 09:11:25,236 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 09:11:25,237 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-20 09:11:25,237 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 09:11:25,241 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-20 09:11:25,268 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-20 09:11:25,268 INFO L444 ceAbstractionStarter]: For program point L17-1(lines 17 21) no Hoare annotation was computed. [2019-11-20 09:11:25,268 INFO L444 ceAbstractionStarter]: For program point L17-3(lines 17 21) no Hoare annotation was computed. [2019-11-20 09:11:25,268 INFO L440 ceAbstractionStarter]: At program point L17-4(lines 17 21) the Hoare annotation is: (<= ULTIMATE.start_main_~i~0 1023) [2019-11-20 09:11:25,268 INFO L444 ceAbstractionStarter]: For program point L17-5(lines 17 21) no Hoare annotation was computed. [2019-11-20 09:11:25,268 INFO L444 ceAbstractionStarter]: For program point L13-2(lines 13 15) no Hoare annotation was computed. [2019-11-20 09:11:25,269 INFO L447 ceAbstractionStarter]: At program point L13-3(lines 13 15) the Hoare annotation is: true [2019-11-20 09:11:25,269 INFO L444 ceAbstractionStarter]: For program point L13-4(lines 13 15) no Hoare annotation was computed. [2019-11-20 09:11:25,269 INFO L444 ceAbstractionStarter]: For program point L9(lines 9 23) no Hoare annotation was computed. [2019-11-20 09:11:25,269 INFO L444 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-11-20 09:11:25,269 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-20 09:11:25,269 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-20 09:11:25,269 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-20 09:11:25,269 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-11-20 09:11:25,269 INFO L444 ceAbstractionStarter]: For program point L18(lines 18 20) no Hoare annotation was computed. [2019-11-20 09:11:25,269 INFO L444 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-11-20 09:11:25,269 INFO L447 ceAbstractionStarter]: At program point L4-2(lines 3 8) the Hoare annotation is: true [2019-11-20 09:11:25,281 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 09:11:25 BoogieIcfgContainer [2019-11-20 09:11:25,281 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 09:11:25,281 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 09:11:25,282 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 09:11:25,282 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 09:11:25,282 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:11:24" (3/4) ... [2019-11-20 09:11:25,285 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 09:11:25,293 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-11-20 09:11:25,293 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-20 09:11:25,293 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-20 09:11:25,338 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_378d4c36-3585-45c9-964a-d6eada35a2ef/bin/uautomizer/witness.graphml [2019-11-20 09:11:25,338 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 09:11:25,340 INFO L168 Benchmark]: Toolchain (without parser) took 1430.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.3 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -135.2 MB). Peak memory consumption was 22.1 MB. Max. memory is 11.5 GB. [2019-11-20 09:11:25,341 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 09:11:25,341 INFO L168 Benchmark]: CACSL2BoogieTranslator took 317.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.3 MB). Free memory was 944.8 MB in the beginning and 1.2 GB in the end (delta: -208.6 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-11-20 09:11:25,342 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.43 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 09:11:25,342 INFO L168 Benchmark]: Boogie Preprocessor took 20.81 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-11-20 09:11:25,343 INFO L168 Benchmark]: RCFGBuilder took 330.77 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2019-11-20 09:11:25,343 INFO L168 Benchmark]: TraceAbstraction took 668.67 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 48.4 MB). Peak memory consumption was 48.4 MB. Max. memory is 11.5 GB. [2019-11-20 09:11:25,344 INFO L168 Benchmark]: Witness Printer took 56.63 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-20 09:11:25,347 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 317.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.3 MB). Free memory was 944.8 MB in the beginning and 1.2 GB in the end (delta: -208.6 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 32.43 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.81 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 330.77 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 668.67 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 48.4 MB). Peak memory consumption was 48.4 MB. Max. memory is 11.5 GB. * Witness Printer took 56.63 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: 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: 13]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: i <= 1023 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 17 locations, 1 error locations. Result: SAFE, OverallTime: 0.6s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 43 SDtfs, 21 SDslu, 28 SDs, 0 SdLazy, 57 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 8 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 8 NumberOfFragments, 5 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 8 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 39 ConstructedInterpolants, 0 QuantifiedInterpolants, 669 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 4/4 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...