./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/signedintegeroverflow-regression/IntegerPromotion-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows 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_f25ae723-461a-4e22-8765-bf5ac0316453/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_f25ae723-461a-4e22-8765-bf5ac0316453/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f25ae723-461a-4e22-8765-bf5ac0316453/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f25ae723-461a-4e22-8765-bf5ac0316453/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/signedintegeroverflow-regression/IntegerPromotion-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_f25ae723-461a-4e22-8765-bf5ac0316453/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f25ae723-461a-4e22-8765-bf5ac0316453/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 64bit --witnessprinter.graph.data.programhash 2ecc737c5af1d503eeeb325d3c287e7ad2d57d21 ......................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-19 22:03:54,172 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 22:03:54,173 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 22:03:54,189 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 22:03:54,190 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 22:03:54,191 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 22:03:54,193 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 22:03:54,202 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 22:03:54,207 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 22:03:54,211 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 22:03:54,212 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 22:03:54,213 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 22:03:54,214 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 22:03:54,216 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 22:03:54,217 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 22:03:54,218 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 22:03:54,219 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 22:03:54,220 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 22:03:54,222 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 22:03:54,225 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 22:03:54,229 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 22:03:54,231 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 22:03:54,234 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 22:03:54,235 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 22:03:54,238 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 22:03:54,239 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 22:03:54,239 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 22:03:54,240 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 22:03:54,241 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 22:03:54,242 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 22:03:54,242 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 22:03:54,243 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 22:03:54,244 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 22:03:54,245 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 22:03:54,246 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 22:03:54,246 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 22:03:54,246 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 22:03:54,247 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 22:03:54,247 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 22:03:54,248 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 22:03:54,249 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 22:03:54,249 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f25ae723-461a-4e22-8765-bf5ac0316453/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-11-19 22:03:54,274 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 22:03:54,283 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 22:03:54,284 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 22:03:54,284 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 22:03:54,285 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 22:03:54,285 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 22:03:54,285 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-19 22:03:54,285 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 22:03:54,286 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 22:03:54,286 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-19 22:03:54,286 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-19 22:03:54,286 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-19 22:03:54,286 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-19 22:03:54,287 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 22:03:54,287 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 22:03:54,287 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-19 22:03:54,287 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 22:03:54,288 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 22:03:54,288 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-19 22:03:54,288 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-19 22:03:54,288 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 22:03:54,288 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 22:03:54,289 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-19 22:03:54,289 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-19 22:03:54,289 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 22:03:54,289 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-19 22:03:54,290 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-19 22:03:54,290 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_f25ae723-461a-4e22-8765-bf5ac0316453/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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2ecc737c5af1d503eeeb325d3c287e7ad2d57d21 [2019-11-19 22:03:54,440 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 22:03:54,450 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 22:03:54,452 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 22:03:54,454 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 22:03:54,454 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 22:03:54,455 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f25ae723-461a-4e22-8765-bf5ac0316453/bin/uautomizer/../../sv-benchmarks/c/signedintegeroverflow-regression/IntegerPromotion-1.i [2019-11-19 22:03:54,508 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f25ae723-461a-4e22-8765-bf5ac0316453/bin/uautomizer/data/195340725/1950ab2170ca4a7bbcb854277c35f0f7/FLAGe22021f30 [2019-11-19 22:03:54,917 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 22:03:54,918 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f25ae723-461a-4e22-8765-bf5ac0316453/sv-benchmarks/c/signedintegeroverflow-regression/IntegerPromotion-1.i [2019-11-19 22:03:54,927 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f25ae723-461a-4e22-8765-bf5ac0316453/bin/uautomizer/data/195340725/1950ab2170ca4a7bbcb854277c35f0f7/FLAGe22021f30 [2019-11-19 22:03:55,304 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f25ae723-461a-4e22-8765-bf5ac0316453/bin/uautomizer/data/195340725/1950ab2170ca4a7bbcb854277c35f0f7 [2019-11-19 22:03:55,307 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 22:03:55,308 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 22:03:55,309 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 22:03:55,309 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 22:03:55,312 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 22:03:55,313 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:03:55" (1/1) ... [2019-11-19 22:03:55,316 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@95bb662 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:03:55, skipping insertion in model container [2019-11-19 22:03:55,317 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:03:55" (1/1) ... [2019-11-19 22:03:55,324 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 22:03:55,351 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 22:03:55,645 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 22:03:55,651 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 22:03:55,685 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 22:03:55,728 INFO L192 MainTranslator]: Completed translation [2019-11-19 22:03:55,729 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:03:55 WrapperNode [2019-11-19 22:03:55,729 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 22:03:55,729 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 22:03:55,730 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 22:03:55,730 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 22:03:55,738 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:03:55" (1/1) ... [2019-11-19 22:03:55,748 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:03:55" (1/1) ... [2019-11-19 22:03:55,762 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 22:03:55,762 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 22:03:55,763 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 22:03:55,763 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 22:03:55,769 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:03:55" (1/1) ... [2019-11-19 22:03:55,769 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:03:55" (1/1) ... [2019-11-19 22:03:55,771 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:03:55" (1/1) ... [2019-11-19 22:03:55,772 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:03:55" (1/1) ... [2019-11-19 22:03:55,774 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:03:55" (1/1) ... [2019-11-19 22:03:55,776 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:03:55" (1/1) ... [2019-11-19 22:03:55,777 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:03:55" (1/1) ... [2019-11-19 22:03:55,778 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 22:03:55,779 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 22:03:55,779 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 22:03:55,779 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 22:03:55,780 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:03:55" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f25ae723-461a-4e22-8765-bf5ac0316453/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 [2019-11-19 22:03:55,830 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-19 22:03:55,830 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 22:03:55,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 22:03:56,009 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 22:03:56,009 INFO L285 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-19 22:03:56,010 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:03:56 BoogieIcfgContainer [2019-11-19 22:03:56,010 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 22:03:56,011 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-19 22:03:56,016 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-19 22:03:56,019 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-19 22:03:56,019 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 10:03:55" (1/3) ... [2019-11-19 22:03:56,020 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11a636ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:03:56, skipping insertion in model container [2019-11-19 22:03:56,020 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:03:55" (2/3) ... [2019-11-19 22:03:56,021 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11a636ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:03:56, skipping insertion in model container [2019-11-19 22:03:56,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:03:56" (3/3) ... [2019-11-19 22:03:56,022 INFO L109 eAbstractionObserver]: Analyzing ICFG IntegerPromotion-1.i [2019-11-19 22:03:56,031 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-19 22:03:56,037 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2019-11-19 22:03:56,058 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-11-19 22:03:56,083 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-19 22:03:56,083 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-19 22:03:56,084 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-19 22:03:56,084 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 22:03:56,084 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 22:03:56,084 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-19 22:03:56,084 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 22:03:56,084 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-19 22:03:56,098 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2019-11-19 22:03:56,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-11-19 22:03:56,103 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 22:03:56,104 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-11-19 22:03:56,104 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-19 22:03:56,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:03:56,112 INFO L82 PathProgramCache]: Analyzing trace with hash 29856, now seen corresponding path program 1 times [2019-11-19 22:03:56,120 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:03:56,120 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096416591] [2019-11-19 22:03:56,121 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:03:56,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:03:56,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:03:56,242 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096416591] [2019-11-19 22:03:56,242 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 22:03:56,243 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-19 22:03:56,244 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105633762] [2019-11-19 22:03:56,248 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-19 22:03:56,248 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 22:03:56,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-19 22:03:56,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 22:03:56,259 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 3 states. [2019-11-19 22:03:56,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:03:56,291 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2019-11-19 22:03:56,292 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-19 22:03:56,293 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2019-11-19 22:03:56,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 22:03:56,300 INFO L225 Difference]: With dead ends: 13 [2019-11-19 22:03:56,300 INFO L226 Difference]: Without dead ends: 8 [2019-11-19 22:03:56,303 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 22:03:56,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2019-11-19 22:03:56,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2019-11-19 22:03:56,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2019-11-19 22:03:56,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 7 transitions. [2019-11-19 22:03:56,326 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 7 transitions. Word has length 3 [2019-11-19 22:03:56,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 22:03:56,326 INFO L462 AbstractCegarLoop]: Abstraction has 8 states and 7 transitions. [2019-11-19 22:03:56,327 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-19 22:03:56,327 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2019-11-19 22:03:56,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-19 22:03:56,327 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 22:03:56,327 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-19 22:03:56,328 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-19 22:03:56,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:03:56,328 INFO L82 PathProgramCache]: Analyzing trace with hash 925572, now seen corresponding path program 1 times [2019-11-19 22:03:56,328 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:03:56,328 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295205145] [2019-11-19 22:03:56,329 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:03:56,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:03:56,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:03:56,353 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295205145] [2019-11-19 22:03:56,353 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 22:03:56,353 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-19 22:03:56,353 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448681045] [2019-11-19 22:03:56,354 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-19 22:03:56,355 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 22:03:56,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-19 22:03:56,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 22:03:56,355 INFO L87 Difference]: Start difference. First operand 8 states and 7 transitions. Second operand 3 states. [2019-11-19 22:03:56,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:03:56,369 INFO L93 Difference]: Finished difference Result 8 states and 7 transitions. [2019-11-19 22:03:56,370 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-19 22:03:56,370 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-11-19 22:03:56,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 22:03:56,370 INFO L225 Difference]: With dead ends: 8 [2019-11-19 22:03:56,370 INFO L226 Difference]: Without dead ends: 0 [2019-11-19 22:03:56,371 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 22:03:56,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-19 22:03:56,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-19 22:03:56,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-19 22:03:56,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-19 22:03:56,372 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2019-11-19 22:03:56,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 22:03:56,372 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-19 22:03:56,373 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-19 22:03:56,373 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-19 22:03:56,373 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-19 22:03:56,376 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-19 22:03:56,387 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 333) no Hoare annotation was computed. [2019-11-19 22:03:56,387 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-19 22:03:56,387 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-19 22:03:56,387 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 333) no Hoare annotation was computed. [2019-11-19 22:03:56,388 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 333) no Hoare annotation was computed. [2019-11-19 22:03:56,388 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 333) no Hoare annotation was computed. [2019-11-19 22:03:56,388 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-19 22:03:56,388 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-19 22:03:56,388 INFO L440 ceAbstractionStarter]: At program point L335(lines 331 336) the Hoare annotation is: (<= ULTIMATE.start_main_~a~0 32767) [2019-11-19 22:03:56,388 INFO L444 ceAbstractionStarter]: For program point L333(line 333) no Hoare annotation was computed. [2019-11-19 22:03:56,389 INFO L444 ceAbstractionStarter]: For program point L333-1(line 333) no Hoare annotation was computed. [2019-11-19 22:03:56,389 INFO L444 ceAbstractionStarter]: For program point L333-2(line 333) no Hoare annotation was computed. [2019-11-19 22:03:56,389 INFO L444 ceAbstractionStarter]: For program point L333-3(line 333) no Hoare annotation was computed. [2019-11-19 22:03:56,402 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 10:03:56 BoogieIcfgContainer [2019-11-19 22:03:56,402 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-19 22:03:56,402 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 22:03:56,402 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 22:03:56,403 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 22:03:56,403 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:03:56" (3/4) ... [2019-11-19 22:03:56,406 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-19 22:03:56,417 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-19 22:03:56,417 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-19 22:03:56,417 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-19 22:03:56,454 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_f25ae723-461a-4e22-8765-bf5ac0316453/bin/uautomizer/witness.graphml [2019-11-19 22:03:56,455 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 22:03:56,457 INFO L168 Benchmark]: Toolchain (without parser) took 1148.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -114.9 MB). Peak memory consumption was 19.3 MB. Max. memory is 11.5 GB. [2019-11-19 22:03:56,457 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 22:03:56,458 INFO L168 Benchmark]: CACSL2BoogieTranslator took 420.36 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -170.9 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. [2019-11-19 22:03:56,459 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.71 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. [2019-11-19 22:03:56,459 INFO L168 Benchmark]: Boogie Preprocessor took 15.92 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. [2019-11-19 22:03:56,460 INFO L168 Benchmark]: RCFGBuilder took 231.94 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: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-11-19 22:03:56,460 INFO L168 Benchmark]: TraceAbstraction took 390.45 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: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. [2019-11-19 22:03:56,461 INFO L168 Benchmark]: Witness Printer took 52.61 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. [2019-11-19 22:03:56,464 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 420.36 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -170.9 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 32.71 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 15.92 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 231.94 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: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 390.45 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: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. * Witness Printer took 52.61 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: 333]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 333]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 333]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 333]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 331]: Loop Invariant Derived loop invariant: a <= 32767 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 4 error locations. Result: SAFE, OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 6 SDtfs, 10 SDslu, 2 SDs, 0 SdLazy, 9 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 1 NumberOfFragments, 3 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 29 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 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...