./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-examples/sanfoundry_43_ground.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_83b0e5d0-869b-469d-a0d0-b5f20df9d06c/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_83b0e5d0-869b-469d-a0d0-b5f20df9d06c/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_83b0e5d0-869b-469d-a0d0-b5f20df9d06c/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_83b0e5d0-869b-469d-a0d0-b5f20df9d06c/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-examples/sanfoundry_43_ground.i -s /tmp/vcloud-vcloud-master/worker/run_dir_83b0e5d0-869b-469d-a0d0-b5f20df9d06c/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_83b0e5d0-869b-469d-a0d0-b5f20df9d06c/bin/uautomizer --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 c8814aff330c9b42641e504ae719c2664f8e7269 ........................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 03:18:38,165 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:18:38,167 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:18:38,208 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:18:38,209 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:18:38,211 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:18:38,213 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:18:38,215 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:18:38,218 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:18:38,227 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:18:38,229 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:18:38,230 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:18:38,231 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:18:38,233 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:18:38,234 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:18:38,243 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:18:38,245 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:18:38,246 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:18:38,248 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:18:38,253 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:18:38,263 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:18:38,266 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:18:38,272 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:18:38,274 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:18:38,282 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:18:38,287 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:18:38,287 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:18:38,289 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:18:38,290 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:18:38,292 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:18:38,292 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:18:38,294 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:18:38,296 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:18:38,297 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:18:38,299 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:18:38,299 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:18:38,300 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:18:38,300 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:18:38,301 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:18:38,302 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:18:38,303 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:18:38,306 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_83b0e5d0-869b-469d-a0d0-b5f20df9d06c/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-28 03:18:38,332 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:18:38,332 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:18:38,334 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:18:38,334 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:18:38,334 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:18:38,334 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:18:38,335 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:18:38,335 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:18:38,335 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:18:38,335 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:18:38,335 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:18:38,336 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:18:38,336 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:18:38,336 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:18:38,336 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:18:38,336 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:18:38,337 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:18:38,337 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:18:38,337 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:18:38,337 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:18:38,337 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:18:38,338 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:18:38,338 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:18:38,338 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:18:38,338 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:18:38,338 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:18:38,339 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:18:38,339 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:18:38,339 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:18:38,340 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_83b0e5d0-869b-469d-a0d0-b5f20df9d06c/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_83b0e5d0-869b-469d-a0d0-b5f20df9d06c/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c8814aff330c9b42641e504ae719c2664f8e7269 [2020-11-28 03:18:38,616 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:18:38,650 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:18:38,653 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:18:38,654 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:18:38,656 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:18:38,657 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_83b0e5d0-869b-469d-a0d0-b5f20df9d06c/bin/uautomizer/../../sv-benchmarks/c/array-examples/sanfoundry_43_ground.i [2020-11-28 03:18:38,741 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_83b0e5d0-869b-469d-a0d0-b5f20df9d06c/bin/uautomizer/data/213a99e80/e96dac9d17ea4a6484b31bdf9f807d66/FLAG47680eae7 [2020-11-28 03:18:39,356 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:18:39,358 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_83b0e5d0-869b-469d-a0d0-b5f20df9d06c/sv-benchmarks/c/array-examples/sanfoundry_43_ground.i [2020-11-28 03:18:39,370 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_83b0e5d0-869b-469d-a0d0-b5f20df9d06c/bin/uautomizer/data/213a99e80/e96dac9d17ea4a6484b31bdf9f807d66/FLAG47680eae7 [2020-11-28 03:18:39,668 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_83b0e5d0-869b-469d-a0d0-b5f20df9d06c/bin/uautomizer/data/213a99e80/e96dac9d17ea4a6484b31bdf9f807d66 [2020-11-28 03:18:39,671 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:18:39,672 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:18:39,678 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:18:39,679 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:18:39,684 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:18:39,685 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:18:39" (1/1) ... [2020-11-28 03:18:39,687 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37e1367e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:39, skipping insertion in model container [2020-11-28 03:18:39,688 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:18:39" (1/1) ... [2020-11-28 03:18:39,695 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:18:39,714 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:18:39,946 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:18:39,956 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:18:39,986 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:18:40,012 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:18:40,014 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:40 WrapperNode [2020-11-28 03:18:40,014 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:18:40,015 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:18:40,016 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:18:40,016 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:18:40,024 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:40" (1/1) ... [2020-11-28 03:18:40,035 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:40" (1/1) ... [2020-11-28 03:18:40,063 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:18:40,065 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:18:40,065 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:18:40,066 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:18:40,075 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:40" (1/1) ... [2020-11-28 03:18:40,076 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:40" (1/1) ... [2020-11-28 03:18:40,087 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:40" (1/1) ... [2020-11-28 03:18:40,088 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:40" (1/1) ... [2020-11-28 03:18:40,098 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:40" (1/1) ... [2020-11-28 03:18:40,107 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:40" (1/1) ... [2020-11-28 03:18:40,109 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:40" (1/1) ... [2020-11-28 03:18:40,111 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:18:40,118 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:18:40,118 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:18:40,118 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:18:40,120 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:40" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_83b0e5d0-869b-469d-a0d0-b5f20df9d06c/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 [2020-11-28 03:18:40,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:18:40,208 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:18:40,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-28 03:18:40,210 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:18:40,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:18:40,210 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-28 03:18:40,211 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 03:18:40,683 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:18:40,686 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-28 03:18:40,689 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:18:40 BoogieIcfgContainer [2020-11-28 03:18:40,690 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:18:40,694 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:18:40,694 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:18:40,698 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:18:40,698 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:18:39" (1/3) ... [2020-11-28 03:18:40,699 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21d7080 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:18:40, skipping insertion in model container [2020-11-28 03:18:40,699 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:40" (2/3) ... [2020-11-28 03:18:40,700 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21d7080 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:18:40, skipping insertion in model container [2020-11-28 03:18:40,700 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:18:40" (3/3) ... [2020-11-28 03:18:40,702 INFO L111 eAbstractionObserver]: Analyzing ICFG sanfoundry_43_ground.i [2020-11-28 03:18:40,714 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:18:40,719 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-11-28 03:18:40,731 INFO L253 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-11-28 03:18:40,769 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:18:40,769 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:18:40,769 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:18:40,769 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:18:40,770 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:18:40,770 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:18:40,770 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:18:40,770 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:18:40,786 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2020-11-28 03:18:40,790 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 03:18:40,794 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 14 states. [2020-11-28 03:18:40,849 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-28 03:18:40,850 INFO L274 CegarLoopResult]: For program point L19-2(lines 19 21) no Hoare annotation was computed. [2020-11-28 03:18:40,850 INFO L277 CegarLoopResult]: At program point L19-3(lines 19 21) the Hoare annotation is: true [2020-11-28 03:18:40,850 INFO L274 CegarLoopResult]: For program point L34-2(lines 34 36) no Hoare annotation was computed. [2020-11-28 03:18:40,850 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-28 03:18:40,850 INFO L277 CegarLoopResult]: At program point L34-3(lines 34 36) the Hoare annotation is: true [2020-11-28 03:18:40,850 INFO L274 CegarLoopResult]: For program point L34-4(lines 34 36) no Hoare annotation was computed. [2020-11-28 03:18:40,850 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-28 03:18:40,850 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-28 03:18:40,851 INFO L274 CegarLoopResult]: For program point L28-2(lines 28 30) no Hoare annotation was computed. [2020-11-28 03:18:40,851 INFO L277 CegarLoopResult]: At program point L28-3(lines 28 30) the Hoare annotation is: true [2020-11-28 03:18:40,851 INFO L274 CegarLoopResult]: For program point L28-4(lines 28 30) no Hoare annotation was computed. [2020-11-28 03:18:40,851 INFO L274 CegarLoopResult]: For program point L16(lines 16 22) no Hoare annotation was computed. [2020-11-28 03:18:40,851 INFO L277 CegarLoopResult]: At program point L37(lines 23 38) the Hoare annotation is: true [2020-11-28 03:18:40,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:18:40 BoogieIcfgContainer [2020-11-28 03:18:40,862 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:18:40,864 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:18:40,864 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:18:40,864 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:18:40,865 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:18:40" (3/4) ... [2020-11-28 03:18:40,868 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 03:18:40,879 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2020-11-28 03:18:40,880 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-11-28 03:18:40,880 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 03:18:40,881 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 03:18:40,955 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_83b0e5d0-869b-469d-a0d0-b5f20df9d06c/bin/uautomizer/witness.graphml [2020-11-28 03:18:40,956 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:18:40,958 INFO L168 Benchmark]: Toolchain (without parser) took 1284.82 ms. Allocated memory is still 88.1 MB. Free memory was 57.4 MB in the beginning and 39.8 MB in the end (delta: 17.7 MB). Peak memory consumption was 16.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:18:40,959 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 88.1 MB. Free memory was 47.9 MB in the beginning and 47.9 MB in the end (delta: 31.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:18:40,960 INFO L168 Benchmark]: CACSL2BoogieTranslator took 336.28 ms. Allocated memory is still 88.1 MB. Free memory was 57.3 MB in the beginning and 65.9 MB in the end (delta: -8.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:18:40,961 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.06 ms. Allocated memory is still 88.1 MB. Free memory was 65.9 MB in the beginning and 64.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:18:40,962 INFO L168 Benchmark]: Boogie Preprocessor took 52.40 ms. Allocated memory is still 88.1 MB. Free memory was 64.6 MB in the beginning and 63.4 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:18:40,963 INFO L168 Benchmark]: RCFGBuilder took 572.29 ms. Allocated memory is still 88.1 MB. Free memory was 63.4 MB in the beginning and 50.7 MB in the end (delta: 12.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 03:18:40,963 INFO L168 Benchmark]: TraceAbstraction took 168.68 ms. Allocated memory is still 88.1 MB. Free memory was 50.3 MB in the beginning and 42.4 MB in the end (delta: 7.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-28 03:18:40,965 INFO L168 Benchmark]: Witness Printer took 92.42 ms. Allocated memory is still 88.1 MB. Free memory was 42.4 MB in the beginning and 39.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:18:40,973 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 88.1 MB. Free memory was 47.9 MB in the beginning and 47.9 MB in the end (delta: 31.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 336.28 ms. Allocated memory is still 88.1 MB. Free memory was 57.3 MB in the beginning and 65.9 MB in the end (delta: -8.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 48.06 ms. Allocated memory is still 88.1 MB. Free memory was 65.9 MB in the beginning and 64.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 52.40 ms. Allocated memory is still 88.1 MB. Free memory was 64.6 MB in the beginning and 63.4 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 572.29 ms. Allocated memory is still 88.1 MB. Free memory was 63.4 MB in the beginning and 50.7 MB in the end (delta: 12.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 168.68 ms. Allocated memory is still 88.1 MB. Free memory was 50.3 MB in the beginning and 42.4 MB in the end (delta: 7.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Witness Printer took 92.42 ms. Allocated memory is still 88.1 MB. Free memory was 42.4 MB in the beginning and 39.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 0 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.0s, OverallIterations: 0, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred 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: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 4 NumberOfFragments, 4 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...