./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursive-simple/id_b3_o5-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_9e3c7d05-135a-4279-8168-18c46e5b5bd3/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_9e3c7d05-135a-4279-8168-18c46e5b5bd3/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_9e3c7d05-135a-4279-8168-18c46e5b5bd3/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_9e3c7d05-135a-4279-8168-18c46e5b5bd3/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursive-simple/id_b3_o5-2.c -s /tmp/vcloud-vcloud-master/worker/working_dir_9e3c7d05-135a-4279-8168-18c46e5b5bd3/bin/uautomizer/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_9e3c7d05-135a-4279-8168-18c46e5b5bd3/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8d39666f7b9e3c393826226f879477647e7209cc ............................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 08:58:22,371 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:58:22,376 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:58:22,384 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:58:22,385 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:58:22,385 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:58:22,386 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:58:22,388 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:58:22,389 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:58:22,390 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:58:22,390 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:58:22,391 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:58:22,391 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:58:22,392 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:58:22,393 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:58:22,394 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:58:22,394 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:58:22,395 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:58:22,396 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:58:22,397 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:58:22,398 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:58:22,399 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:58:22,400 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:58:22,401 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:58:22,402 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:58:22,402 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:58:22,403 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:58:22,403 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:58:22,404 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:58:22,404 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:58:22,405 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:58:22,405 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:58:22,406 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:58:22,406 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:58:22,407 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:58:22,407 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:58:22,407 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:58:22,408 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:58:22,408 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:58:22,408 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:58:22,409 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:58:22,409 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_9e3c7d05-135a-4279-8168-18c46e5b5bd3/bin/uautomizer/config/svcomp-Overflow-32bit-Automizer_Default.epf [2019-10-22 08:58:22,419 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:58:22,419 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:58:22,420 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:58:22,420 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:58:22,420 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:58:22,421 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:58:22,421 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:58:22,421 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 08:58:22,421 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:58:22,421 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:58:22,421 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:58:22,422 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 08:58:22,422 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:58:22,422 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 08:58:22,422 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-10-22 08:58:22,422 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:58:22,422 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:58:22,423 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:58:22,423 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 08:58:22,423 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:58:22,423 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:58:22,423 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:58:22,423 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:58:22,424 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:58:22,424 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:58:22,424 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:58:22,424 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 08:58:22,424 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:58:22,424 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 08:58:22,425 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 08:58:22,425 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/working_dir_9e3c7d05-135a-4279-8168-18c46e5b5bd3/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 ! overflow) ) 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 -> 8d39666f7b9e3c393826226f879477647e7209cc [2019-10-22 08:58:22,447 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:58:22,456 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:58:22,459 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:58:22,460 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:58:22,460 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:58:22,461 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_9e3c7d05-135a-4279-8168-18c46e5b5bd3/bin/uautomizer/../../sv-benchmarks/c/recursive-simple/id_b3_o5-2.c [2019-10-22 08:58:22,503 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9e3c7d05-135a-4279-8168-18c46e5b5bd3/bin/uautomizer/data/3d44d01e2/016850f92668497ca8e599febbcc5901/FLAGc155870d8 [2019-10-22 08:58:22,871 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:58:22,871 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_9e3c7d05-135a-4279-8168-18c46e5b5bd3/sv-benchmarks/c/recursive-simple/id_b3_o5-2.c [2019-10-22 08:58:22,876 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9e3c7d05-135a-4279-8168-18c46e5b5bd3/bin/uautomizer/data/3d44d01e2/016850f92668497ca8e599febbcc5901/FLAGc155870d8 [2019-10-22 08:58:22,890 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_9e3c7d05-135a-4279-8168-18c46e5b5bd3/bin/uautomizer/data/3d44d01e2/016850f92668497ca8e599febbcc5901 [2019-10-22 08:58:22,892 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:58:22,893 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:58:22,894 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:58:22,894 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:58:22,897 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:58:22,897 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:58:22" (1/1) ... [2019-10-22 08:58:22,899 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f4dd4c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:22, skipping insertion in model container [2019-10-22 08:58:22,899 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:58:22" (1/1) ... [2019-10-22 08:58:22,905 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:58:22,920 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:58:23,036 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:58:23,039 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:58:23,104 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:58:23,116 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:58:23,116 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:23 WrapperNode [2019-10-22 08:58:23,116 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:58:23,117 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:58:23,117 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:58:23,117 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:58:23,125 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:23" (1/1) ... [2019-10-22 08:58:23,129 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:23" (1/1) ... [2019-10-22 08:58:23,144 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:58:23,144 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:58:23,145 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:58:23,145 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:58:23,153 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:23" (1/1) ... [2019-10-22 08:58:23,153 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:23" (1/1) ... [2019-10-22 08:58:23,154 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:23" (1/1) ... [2019-10-22 08:58:23,154 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:23" (1/1) ... [2019-10-22 08:58:23,156 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:23" (1/1) ... [2019-10-22 08:58:23,158 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:23" (1/1) ... [2019-10-22 08:58:23,159 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:23" (1/1) ... [2019-10-22 08:58:23,160 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:58:23,161 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:58:23,161 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:58:23,161 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:58:23,162 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:23" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9e3c7d05-135a-4279-8168-18c46e5b5bd3/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 [2019-10-22 08:58:23,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:58:23,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:58:23,226 INFO L130 BoogieDeclarations]: Found specification of procedure id [2019-10-22 08:58:23,226 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2019-10-22 08:58:23,424 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:58:23,424 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-22 08:58:23,425 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:58:23 BoogieIcfgContainer [2019-10-22 08:58:23,425 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:58:23,426 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:58:23,426 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:58:23,428 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:58:23,429 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:58:22" (1/3) ... [2019-10-22 08:58:23,429 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65d13f9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:58:23, skipping insertion in model container [2019-10-22 08:58:23,430 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:23" (2/3) ... [2019-10-22 08:58:23,430 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65d13f9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:58:23, skipping insertion in model container [2019-10-22 08:58:23,430 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:58:23" (3/3) ... [2019-10-22 08:58:23,443 INFO L109 eAbstractionObserver]: Analyzing ICFG id_b3_o5-2.c [2019-10-22 08:58:23,451 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:58:23,474 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-10-22 08:58:23,486 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-10-22 08:58:23,509 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:58:23,512 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 08:58:23,512 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:58:23,512 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:58:23,512 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:58:23,512 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:58:23,513 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:58:23,513 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:58:23,533 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2019-10-22 08:58:23,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-22 08:58:23,540 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:23,541 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:23,543 INFO L410 AbstractCegarLoop]: === Iteration 1 === [idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-10-22 08:58:23,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:23,550 INFO L82 PathProgramCache]: Analyzing trace with hash 1550668038, now seen corresponding path program 1 times [2019-10-22 08:58:23,558 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:23,558 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650990069] [2019-10-22 08:58:23,559 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:23,559 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:23,559 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:23,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:23,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:23,768 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-22 08:58:23,769 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650990069] [2019-10-22 08:58:23,769 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:58:23,770 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:58:23,770 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060830587] [2019-10-22 08:58:23,775 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 08:58:23,775 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:23,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 08:58:23,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:58:23,789 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 4 states. [2019-10-22 08:58:23,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:23,840 INFO L93 Difference]: Finished difference Result 28 states and 32 transitions. [2019-10-22 08:58:23,841 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 08:58:23,842 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-10-22 08:58:23,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:23,850 INFO L225 Difference]: With dead ends: 28 [2019-10-22 08:58:23,850 INFO L226 Difference]: Without dead ends: 18 [2019-10-22 08:58:23,852 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:58:23,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-10-22 08:58:23,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2019-10-22 08:58:23,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-10-22 08:58:23,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2019-10-22 08:58:23,882 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 11 [2019-10-22 08:58:23,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:23,883 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2019-10-22 08:58:23,883 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 08:58:23,883 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2019-10-22 08:58:23,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-10-22 08:58:23,884 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:23,884 INFO L380 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:23,884 INFO L410 AbstractCegarLoop]: === Iteration 2 === [idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-10-22 08:58:23,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:23,884 INFO L82 PathProgramCache]: Analyzing trace with hash -1377538544, now seen corresponding path program 1 times [2019-10-22 08:58:23,885 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:23,885 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135414343] [2019-10-22 08:58:23,885 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:23,885 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:23,885 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:23,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:23,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:23,931 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-10-22 08:58:23,932 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135414343] [2019-10-22 08:58:23,932 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:58:23,932 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 08:58:23,932 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252942913] [2019-10-22 08:58:23,934 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 08:58:23,934 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:23,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 08:58:23,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:58:23,935 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand 3 states. [2019-10-22 08:58:23,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:23,947 INFO L93 Difference]: Finished difference Result 17 states and 19 transitions. [2019-10-22 08:58:23,947 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:58:23,947 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2019-10-22 08:58:23,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:23,948 INFO L225 Difference]: With dead ends: 17 [2019-10-22 08:58:23,948 INFO L226 Difference]: Without dead ends: 16 [2019-10-22 08:58:23,949 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:58:23,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-10-22 08:58:23,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-10-22 08:58:23,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-10-22 08:58:23,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2019-10-22 08:58:23,954 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 15 [2019-10-22 08:58:23,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:23,954 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2019-10-22 08:58:23,954 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 08:58:23,954 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2019-10-22 08:58:23,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-10-22 08:58:23,955 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:23,955 INFO L380 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:23,955 INFO L410 AbstractCegarLoop]: === Iteration 3 === [idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-10-22 08:58:23,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:23,956 INFO L82 PathProgramCache]: Analyzing trace with hash 876403791, now seen corresponding path program 1 times [2019-10-22 08:58:23,956 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:23,956 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299583034] [2019-10-22 08:58:23,956 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:23,956 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:23,956 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:23,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:24,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:24,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:24,046 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-10-22 08:58:24,047 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299583034] [2019-10-22 08:58:24,047 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:58:24,047 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:58:24,047 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709006504] [2019-10-22 08:58:24,047 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 08:58:24,047 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:24,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 08:58:24,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:58:24,048 INFO L87 Difference]: Start difference. First operand 16 states and 18 transitions. Second operand 4 states. [2019-10-22 08:58:24,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:24,064 INFO L93 Difference]: Finished difference Result 16 states and 18 transitions. [2019-10-22 08:58:24,064 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 08:58:24,064 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2019-10-22 08:58:24,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:24,065 INFO L225 Difference]: With dead ends: 16 [2019-10-22 08:58:24,065 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 08:58:24,065 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:58:24,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 08:58:24,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 08:58:24,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 08:58:24,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 08:58:24,066 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2019-10-22 08:58:24,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:24,066 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 08:58:24,067 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 08:58:24,067 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 08:58:24,067 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 08:58:24,071 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-22 08:58:24,082 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-22 08:58:24,082 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-10-22 08:58:24,083 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-22 08:58:24,083 INFO L443 ceAbstractionStarter]: For program point L15(line 15) no Hoare annotation was computed. [2019-10-22 08:58:24,083 INFO L443 ceAbstractionStarter]: For program point L14(lines 14 16) no Hoare annotation was computed. [2019-10-22 08:58:24,083 INFO L446 ceAbstractionStarter]: At program point L13(line 13) the Hoare annotation is: true [2019-10-22 08:58:24,083 INFO L443 ceAbstractionStarter]: For program point L13-1(line 13) no Hoare annotation was computed. [2019-10-22 08:58:24,083 INFO L443 ceAbstractionStarter]: For program point L11(lines 11 17) no Hoare annotation was computed. [2019-10-22 08:58:24,083 INFO L443 ceAbstractionStarter]: For program point idFINAL(lines 4 9) no Hoare annotation was computed. [2019-10-22 08:58:24,084 INFO L443 ceAbstractionStarter]: For program point idEXIT(lines 4 9) no Hoare annotation was computed. [2019-10-22 08:58:24,084 INFO L446 ceAbstractionStarter]: At program point idENTRY(lines 4 9) the Hoare annotation is: true [2019-10-22 08:58:24,084 INFO L443 ceAbstractionStarter]: For program point idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 6) no Hoare annotation was computed. [2019-10-22 08:58:24,084 INFO L443 ceAbstractionStarter]: For program point idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 6) no Hoare annotation was computed. [2019-10-22 08:58:24,084 INFO L443 ceAbstractionStarter]: For program point L7(line 7) no Hoare annotation was computed. [2019-10-22 08:58:24,084 INFO L446 ceAbstractionStarter]: At program point L6(line 6) the Hoare annotation is: true [2019-10-22 08:58:24,084 INFO L443 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-10-22 08:58:24,085 INFO L443 ceAbstractionStarter]: For program point L6-1(line 6) no Hoare annotation was computed. [2019-10-22 08:58:24,085 INFO L443 ceAbstractionStarter]: For program point L6-2(line 6) no Hoare annotation was computed. [2019-10-22 08:58:24,085 INFO L443 ceAbstractionStarter]: For program point L6-3(line 6) no Hoare annotation was computed. [2019-10-22 08:58:24,087 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 08:58:24 BoogieIcfgContainer [2019-10-22 08:58:24,087 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 08:58:24,088 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:58:24,088 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:58:24,088 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:58:24,089 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:58:23" (3/4) ... [2019-10-22 08:58:24,092 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 08:58:24,098 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure id [2019-10-22 08:58:24,102 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-10-22 08:58:24,102 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-10-22 08:58:24,138 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_9e3c7d05-135a-4279-8168-18c46e5b5bd3/bin/uautomizer/witness.graphml [2019-10-22 08:58:24,138 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:58:24,140 INFO L168 Benchmark]: Toolchain (without parser) took 1246.20 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 945.9 MB in the beginning and 1.1 GB in the end (delta: -116.1 MB). Peak memory consumption was 19.2 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:24,140 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:58:24,141 INFO L168 Benchmark]: CACSL2BoogieTranslator took 222.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 945.9 MB in the beginning and 1.1 GB in the end (delta: -183.9 MB). Peak memory consumption was 24.4 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:24,141 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.42 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:58:24,141 INFO L168 Benchmark]: Boogie Preprocessor took 16.08 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:58:24,142 INFO L168 Benchmark]: RCFGBuilder took 264.27 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: 18.2 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:24,142 INFO L168 Benchmark]: TraceAbstraction took 661.77 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: 42.7 MB). Peak memory consumption was 42.7 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:24,142 INFO L168 Benchmark]: Witness Printer took 50.20 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:24,144 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 222.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 945.9 MB in the beginning and 1.1 GB in the end (delta: -183.9 MB). Peak memory consumption was 24.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 27.42 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.08 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 264.27 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: 18.2 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 661.77 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: 42.7 MB). Peak memory consumption was 42.7 MB. Max. memory is 11.5 GB. * Witness Printer took 50.20 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 6]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 6]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 19 locations, 2 error locations. Result: SAFE, OverallTime: 0.5s, OverallIterations: 3, TraceHistogramMax: 3, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 38 SDtfs, 4 SDslu, 55 SDs, 0 SdLazy, 25 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred 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, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 5 PreInvPairs, 5 NumberOfFragments, 3 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 43 ConstructedInterpolants, 0 QuantifiedInterpolants, 1001 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 20/20 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...