./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/McCarthy91_Recursion.c --full-output --architecture 64bit -------------------------------------------------------------------------------- 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/run_dir_1af1b7e6-fa38-48dd-95d7-e9f4200f38fd/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_1af1b7e6-fa38-48dd-95d7-e9f4200f38fd/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_1af1b7e6-fa38-48dd-95d7-e9f4200f38fd/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_1af1b7e6-fa38-48dd-95d7-e9f4200f38fd/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted/McCarthy91_Recursion.c -s /tmp/vcloud-vcloud-master/worker/run_dir_1af1b7e6-fa38-48dd-95d7-e9f4200f38fd/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_1af1b7e6-fa38-48dd-95d7-e9f4200f38fd/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 871be16186d4378aec884efd2352a47ca4eb57bc ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-16 00:29:38,211 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-16 00:29:38,212 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-16 00:29:38,224 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-16 00:29:38,224 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-16 00:29:38,225 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-16 00:29:38,227 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-16 00:29:38,229 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-16 00:29:38,234 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-16 00:29:38,238 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-16 00:29:38,239 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-16 00:29:38,243 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-16 00:29:38,251 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-16 00:29:38,252 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-16 00:29:38,253 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-16 00:29:38,254 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-16 00:29:38,254 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-16 00:29:38,255 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-16 00:29:38,257 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-16 00:29:38,259 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-16 00:29:38,260 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-16 00:29:38,261 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-16 00:29:38,262 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-16 00:29:38,269 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-16 00:29:38,272 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-16 00:29:38,272 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-16 00:29:38,272 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-16 00:29:38,273 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-16 00:29:38,274 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-16 00:29:38,275 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-16 00:29:38,275 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-16 00:29:38,275 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-16 00:29:38,276 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-16 00:29:38,277 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-16 00:29:38,278 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-16 00:29:38,278 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-16 00:29:38,279 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-16 00:29:38,279 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-16 00:29:38,279 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-16 00:29:38,280 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-16 00:29:38,280 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-16 00:29:38,281 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_1af1b7e6-fa38-48dd-95d7-e9f4200f38fd/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-11-16 00:29:38,294 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-16 00:29:38,295 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-16 00:29:38,296 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-16 00:29:38,296 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-16 00:29:38,296 INFO L138 SettingsManager]: * Use SBE=true [2019-11-16 00:29:38,296 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-16 00:29:38,297 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-16 00:29:38,297 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-16 00:29:38,297 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-16 00:29:38,297 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-16 00:29:38,297 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-16 00:29:38,297 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-16 00:29:38,298 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-16 00:29:38,298 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-16 00:29:38,298 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-16 00:29:38,298 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-16 00:29:38,298 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-16 00:29:38,299 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-16 00:29:38,299 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-16 00:29:38,299 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-16 00:29:38,299 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-16 00:29:38,299 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-16 00:29:38,300 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-16 00:29:38,300 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-16 00:29:38,300 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-16 00:29:38,300 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-16 00:29:38,300 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-16 00:29:38,300 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_1af1b7e6-fa38-48dd-95d7-e9f4200f38fd/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 -> 871be16186d4378aec884efd2352a47ca4eb57bc [2019-11-16 00:29:38,330 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-16 00:29:38,345 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-16 00:29:38,348 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-16 00:29:38,352 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-16 00:29:38,352 INFO L275 PluginConnector]: CDTParser initialized [2019-11-16 00:29:38,353 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_1af1b7e6-fa38-48dd-95d7-e9f4200f38fd/bin/uautomizer/../../sv-benchmarks/c/termination-crafted/McCarthy91_Recursion.c [2019-11-16 00:29:38,419 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1af1b7e6-fa38-48dd-95d7-e9f4200f38fd/bin/uautomizer/data/5ef46f329/66c3201196e646fb856bd54141ce8976/FLAG82eeb13c4 [2019-11-16 00:29:38,785 INFO L306 CDTParser]: Found 1 translation units. [2019-11-16 00:29:38,786 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_1af1b7e6-fa38-48dd-95d7-e9f4200f38fd/sv-benchmarks/c/termination-crafted/McCarthy91_Recursion.c [2019-11-16 00:29:38,792 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1af1b7e6-fa38-48dd-95d7-e9f4200f38fd/bin/uautomizer/data/5ef46f329/66c3201196e646fb856bd54141ce8976/FLAG82eeb13c4 [2019-11-16 00:29:39,152 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_1af1b7e6-fa38-48dd-95d7-e9f4200f38fd/bin/uautomizer/data/5ef46f329/66c3201196e646fb856bd54141ce8976 [2019-11-16 00:29:39,155 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-16 00:29:39,156 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-16 00:29:39,158 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-16 00:29:39,158 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-16 00:29:39,162 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-16 00:29:39,163 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:29:39" (1/1) ... [2019-11-16 00:29:39,166 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42597ec8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:29:39, skipping insertion in model container [2019-11-16 00:29:39,166 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:29:39" (1/1) ... [2019-11-16 00:29:39,174 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-16 00:29:39,188 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-16 00:29:39,340 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:29:39,350 INFO L188 MainTranslator]: Completed pre-run [2019-11-16 00:29:39,439 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:29:39,459 INFO L192 MainTranslator]: Completed translation [2019-11-16 00:29:39,460 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:29:39 WrapperNode [2019-11-16 00:29:39,460 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-16 00:29:39,461 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-16 00:29:39,461 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-16 00:29:39,461 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-16 00:29:39,471 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:29:39" (1/1) ... [2019-11-16 00:29:39,477 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:29:39" (1/1) ... [2019-11-16 00:29:39,492 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-16 00:29:39,493 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-16 00:29:39,493 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-16 00:29:39,493 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-16 00:29:39,502 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:29:39" (1/1) ... [2019-11-16 00:29:39,503 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:29:39" (1/1) ... [2019-11-16 00:29:39,503 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:29:39" (1/1) ... [2019-11-16 00:29:39,504 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:29:39" (1/1) ... [2019-11-16 00:29:39,506 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:29:39" (1/1) ... [2019-11-16 00:29:39,507 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:29:39" (1/1) ... [2019-11-16 00:29:39,508 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:29:39" (1/1) ... [2019-11-16 00:29:39,509 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-16 00:29:39,510 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-16 00:29:39,510 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-16 00:29:39,510 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-16 00:29:39,511 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:29:39" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1af1b7e6-fa38-48dd-95d7-e9f4200f38fd/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 [2019-11-16 00:29:39,575 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-16 00:29:39,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-16 00:29:39,576 INFO L130 BoogieDeclarations]: Found specification of procedure mc91 [2019-11-16 00:29:39,576 INFO L138 BoogieDeclarations]: Found implementation of procedure mc91 [2019-11-16 00:29:39,830 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-16 00:29:39,830 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-16 00:29:39,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:29:39 BoogieIcfgContainer [2019-11-16 00:29:39,832 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-16 00:29:39,832 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-16 00:29:39,833 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-16 00:29:39,835 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-16 00:29:39,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:29:39" (1/3) ... [2019-11-16 00:29:39,836 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77de44f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:29:39, skipping insertion in model container [2019-11-16 00:29:39,836 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:29:39" (2/3) ... [2019-11-16 00:29:39,836 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77de44f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:29:39, skipping insertion in model container [2019-11-16 00:29:39,837 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:29:39" (3/3) ... [2019-11-16 00:29:39,838 INFO L109 eAbstractionObserver]: Analyzing ICFG McCarthy91_Recursion.c [2019-11-16 00:29:39,847 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-16 00:29:39,854 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2019-11-16 00:29:39,866 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-11-16 00:29:39,913 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-16 00:29:39,913 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-16 00:29:39,914 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-16 00:29:39,914 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-16 00:29:39,914 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-16 00:29:39,914 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-16 00:29:39,914 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-16 00:29:39,914 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-16 00:29:39,930 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2019-11-16 00:29:39,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-16 00:29:39,934 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:29:39,935 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-16 00:29:39,937 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mc91Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-16 00:29:39,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:29:39,941 INFO L82 PathProgramCache]: Analyzing trace with hash 30304495, now seen corresponding path program 1 times [2019-11-16 00:29:39,949 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:29:39,950 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072573786] [2019-11-16 00:29:39,950 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:29:39,950 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:29:39,950 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:29:40,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:29:40,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:29:40,120 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072573786] [2019-11-16 00:29:40,121 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:29:40,121 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-16 00:29:40,121 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280999374] [2019-11-16 00:29:40,125 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-16 00:29:40,125 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-16 00:29:40,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-16 00:29:40,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-16 00:29:40,137 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 5 states. [2019-11-16 00:29:40,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:29:40,297 INFO L93 Difference]: Finished difference Result 40 states and 47 transitions. [2019-11-16 00:29:40,298 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-16 00:29:40,299 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 5 [2019-11-16 00:29:40,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:29:40,310 INFO L225 Difference]: With dead ends: 40 [2019-11-16 00:29:40,310 INFO L226 Difference]: Without dead ends: 32 [2019-11-16 00:29:40,314 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-16 00:29:40,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-11-16 00:29:40,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 27. [2019-11-16 00:29:40,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-11-16 00:29:40,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 33 transitions. [2019-11-16 00:29:40,359 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 33 transitions. Word has length 5 [2019-11-16 00:29:40,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:29:40,360 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 33 transitions. [2019-11-16 00:29:40,360 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-16 00:29:40,360 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 33 transitions. [2019-11-16 00:29:40,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-16 00:29:40,361 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:29:40,361 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-16 00:29:40,361 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mc91Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-16 00:29:40,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:29:40,362 INFO L82 PathProgramCache]: Analyzing trace with hash 30304655, now seen corresponding path program 1 times [2019-11-16 00:29:40,362 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:29:40,362 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094917137] [2019-11-16 00:29:40,363 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:29:40,363 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:29:40,363 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:29:40,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:29:40,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:29:40,385 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094917137] [2019-11-16 00:29:40,385 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:29:40,385 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-16 00:29:40,385 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941968721] [2019-11-16 00:29:40,387 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-16 00:29:40,387 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-16 00:29:40,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-16 00:29:40,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-16 00:29:40,388 INFO L87 Difference]: Start difference. First operand 27 states and 33 transitions. Second operand 3 states. [2019-11-16 00:29:40,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:29:40,414 INFO L93 Difference]: Finished difference Result 29 states and 37 transitions. [2019-11-16 00:29:40,414 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-16 00:29:40,414 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-11-16 00:29:40,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:29:40,415 INFO L225 Difference]: With dead ends: 29 [2019-11-16 00:29:40,415 INFO L226 Difference]: Without dead ends: 28 [2019-11-16 00:29:40,416 INFO L600 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 [2019-11-16 00:29:40,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-11-16 00:29:40,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 26. [2019-11-16 00:29:40,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-11-16 00:29:40,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 31 transitions. [2019-11-16 00:29:40,424 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 31 transitions. Word has length 5 [2019-11-16 00:29:40,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:29:40,425 INFO L462 AbstractCegarLoop]: Abstraction has 26 states and 31 transitions. [2019-11-16 00:29:40,425 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-16 00:29:40,425 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2019-11-16 00:29:40,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-16 00:29:40,426 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:29:40,426 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-11-16 00:29:40,426 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mc91Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-16 00:29:40,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:29:40,428 INFO L82 PathProgramCache]: Analyzing trace with hash 939439389, now seen corresponding path program 1 times [2019-11-16 00:29:40,428 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:29:40,429 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006524767] [2019-11-16 00:29:40,430 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:29:40,431 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:29:40,431 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:29:40,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:29:40,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:29:40,455 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006524767] [2019-11-16 00:29:40,455 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:29:40,455 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-16 00:29:40,455 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130767669] [2019-11-16 00:29:40,456 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-16 00:29:40,456 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-16 00:29:40,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-16 00:29:40,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-16 00:29:40,457 INFO L87 Difference]: Start difference. First operand 26 states and 31 transitions. Second operand 3 states. [2019-11-16 00:29:40,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:29:40,484 INFO L93 Difference]: Finished difference Result 28 states and 35 transitions. [2019-11-16 00:29:40,486 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-16 00:29:40,487 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2019-11-16 00:29:40,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:29:40,488 INFO L225 Difference]: With dead ends: 28 [2019-11-16 00:29:40,488 INFO L226 Difference]: Without dead ends: 25 [2019-11-16 00:29:40,488 INFO L600 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 [2019-11-16 00:29:40,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-11-16 00:29:40,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 23. [2019-11-16 00:29:40,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-11-16 00:29:40,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2019-11-16 00:29:40,497 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 6 [2019-11-16 00:29:40,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:29:40,497 INFO L462 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2019-11-16 00:29:40,497 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-16 00:29:40,498 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2019-11-16 00:29:40,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-16 00:29:40,498 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:29:40,499 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-11-16 00:29:40,499 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mc91Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-16 00:29:40,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:29:40,500 INFO L82 PathProgramCache]: Analyzing trace with hash 939444354, now seen corresponding path program 1 times [2019-11-16 00:29:40,500 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:29:40,500 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493320410] [2019-11-16 00:29:40,500 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:29:40,501 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:29:40,501 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:29:40,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:29:40,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:29:40,568 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493320410] [2019-11-16 00:29:40,568 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:29:40,568 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-16 00:29:40,569 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993438465] [2019-11-16 00:29:40,569 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-16 00:29:40,569 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-16 00:29:40,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-16 00:29:40,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-16 00:29:40,570 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand 5 states. [2019-11-16 00:29:40,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:29:40,666 INFO L93 Difference]: Finished difference Result 39 states and 47 transitions. [2019-11-16 00:29:40,666 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-16 00:29:40,666 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 6 [2019-11-16 00:29:40,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:29:40,668 INFO L225 Difference]: With dead ends: 39 [2019-11-16 00:29:40,668 INFO L226 Difference]: Without dead ends: 38 [2019-11-16 00:29:40,668 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-16 00:29:40,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2019-11-16 00:29:40,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 35. [2019-11-16 00:29:40,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-11-16 00:29:40,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 41 transitions. [2019-11-16 00:29:40,687 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 41 transitions. Word has length 6 [2019-11-16 00:29:40,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:29:40,688 INFO L462 AbstractCegarLoop]: Abstraction has 35 states and 41 transitions. [2019-11-16 00:29:40,688 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-16 00:29:40,688 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 41 transitions. [2019-11-16 00:29:40,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-16 00:29:40,689 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:29:40,689 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:29:40,689 INFO L410 AbstractCegarLoop]: === Iteration 5 === [mc91Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-16 00:29:40,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:29:40,690 INFO L82 PathProgramCache]: Analyzing trace with hash 312291472, now seen corresponding path program 1 times [2019-11-16 00:29:40,690 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:29:40,690 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471726232] [2019-11-16 00:29:40,690 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:29:40,690 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:29:40,691 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:29:40,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:29:40,738 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:29:40,738 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471726232] [2019-11-16 00:29:40,739 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:29:40,739 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-16 00:29:40,739 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911505767] [2019-11-16 00:29:40,739 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-16 00:29:40,739 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-16 00:29:40,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-16 00:29:40,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-16 00:29:40,740 INFO L87 Difference]: Start difference. First operand 35 states and 41 transitions. Second operand 5 states. [2019-11-16 00:29:40,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:29:40,839 INFO L93 Difference]: Finished difference Result 55 states and 67 transitions. [2019-11-16 00:29:40,839 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-16 00:29:40,839 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2019-11-16 00:29:40,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:29:40,841 INFO L225 Difference]: With dead ends: 55 [2019-11-16 00:29:40,841 INFO L226 Difference]: Without dead ends: 54 [2019-11-16 00:29:40,842 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-11-16 00:29:40,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2019-11-16 00:29:40,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 47. [2019-11-16 00:29:40,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2019-11-16 00:29:40,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 55 transitions. [2019-11-16 00:29:40,853 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 55 transitions. Word has length 10 [2019-11-16 00:29:40,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:29:40,854 INFO L462 AbstractCegarLoop]: Abstraction has 47 states and 55 transitions. [2019-11-16 00:29:40,854 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-16 00:29:40,854 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 55 transitions. [2019-11-16 00:29:40,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-16 00:29:40,855 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:29:40,855 INFO L380 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:29:40,855 INFO L410 AbstractCegarLoop]: === Iteration 6 === [mc91Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-16 00:29:40,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:29:40,855 INFO L82 PathProgramCache]: Analyzing trace with hash -904725729, now seen corresponding path program 1 times [2019-11-16 00:29:40,855 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:29:40,856 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852037136] [2019-11-16 00:29:40,856 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:29:40,856 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:29:40,856 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:29:40,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:29:40,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:29:41,001 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-16 00:29:41,002 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852037136] [2019-11-16 00:29:41,002 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [951933424] [2019-11-16 00:29:41,002 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1af1b7e6-fa38-48dd-95d7-e9f4200f38fd/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-16 00:29:41,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:29:41,064 INFO L256 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-16 00:29:41,071 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-16 00:29:41,244 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:29:41,244 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-16 00:29:41,244 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9] total 14 [2019-11-16 00:29:41,244 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767481909] [2019-11-16 00:29:41,245 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-11-16 00:29:41,245 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-16 00:29:41,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-11-16 00:29:41,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2019-11-16 00:29:41,246 INFO L87 Difference]: Start difference. First operand 47 states and 55 transitions. Second operand 15 states. [2019-11-16 00:29:41,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:29:41,665 INFO L93 Difference]: Finished difference Result 70 states and 89 transitions. [2019-11-16 00:29:41,667 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-11-16 00:29:41,667 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 18 [2019-11-16 00:29:41,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:29:41,669 INFO L225 Difference]: With dead ends: 70 [2019-11-16 00:29:41,669 INFO L226 Difference]: Without dead ends: 69 [2019-11-16 00:29:41,670 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=149, Invalid=403, Unknown=0, NotChecked=0, Total=552 [2019-11-16 00:29:41,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2019-11-16 00:29:41,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 46. [2019-11-16 00:29:41,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2019-11-16 00:29:41,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 54 transitions. [2019-11-16 00:29:41,698 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 54 transitions. Word has length 18 [2019-11-16 00:29:41,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:29:41,707 INFO L462 AbstractCegarLoop]: Abstraction has 46 states and 54 transitions. [2019-11-16 00:29:41,707 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-11-16 00:29:41,708 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 54 transitions. [2019-11-16 00:29:41,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-16 00:29:41,709 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:29:41,709 INFO L380 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:29:41,910 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-16 00:29:41,910 INFO L410 AbstractCegarLoop]: === Iteration 7 === [mc91Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-16 00:29:41,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:29:41,911 INFO L82 PathProgramCache]: Analyzing trace with hash 2018278482, now seen corresponding path program 1 times [2019-11-16 00:29:41,911 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:29:41,911 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152255380] [2019-11-16 00:29:41,911 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:29:41,911 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:29:41,911 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:29:41,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:29:41,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:29:41,978 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-16 00:29:41,978 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152255380] [2019-11-16 00:29:41,978 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:29:41,978 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-16 00:29:41,979 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914199074] [2019-11-16 00:29:41,979 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-16 00:29:41,979 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-16 00:29:41,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-16 00:29:41,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-11-16 00:29:41,980 INFO L87 Difference]: Start difference. First operand 46 states and 54 transitions. Second operand 7 states. [2019-11-16 00:29:42,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:29:42,166 INFO L93 Difference]: Finished difference Result 98 states and 127 transitions. [2019-11-16 00:29:42,167 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-16 00:29:42,167 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2019-11-16 00:29:42,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:29:42,169 INFO L225 Difference]: With dead ends: 98 [2019-11-16 00:29:42,169 INFO L226 Difference]: Without dead ends: 97 [2019-11-16 00:29:42,170 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2019-11-16 00:29:42,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2019-11-16 00:29:42,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 88. [2019-11-16 00:29:42,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2019-11-16 00:29:42,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 108 transitions. [2019-11-16 00:29:42,188 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 108 transitions. Word has length 19 [2019-11-16 00:29:42,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:29:42,189 INFO L462 AbstractCegarLoop]: Abstraction has 88 states and 108 transitions. [2019-11-16 00:29:42,189 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-16 00:29:42,189 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 108 transitions. [2019-11-16 00:29:42,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-11-16 00:29:42,191 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:29:42,191 INFO L380 BasicCegarLoop]: trace histogram [7, 5, 5, 4, 4, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2019-11-16 00:29:42,192 INFO L410 AbstractCegarLoop]: === Iteration 8 === [mc91Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-16 00:29:42,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:29:42,192 INFO L82 PathProgramCache]: Analyzing trace with hash 1310326519, now seen corresponding path program 1 times [2019-11-16 00:29:42,192 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:29:42,192 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281286273] [2019-11-16 00:29:42,192 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:29:42,193 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:29:42,193 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:29:42,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:29:42,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:29:42,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:29:42,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:29:42,314 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2019-11-16 00:29:42,314 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281286273] [2019-11-16 00:29:42,315 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:29:42,315 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-16 00:29:42,315 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100388925] [2019-11-16 00:29:42,316 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-16 00:29:42,316 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-16 00:29:42,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-16 00:29:42,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-11-16 00:29:42,316 INFO L87 Difference]: Start difference. First operand 88 states and 108 transitions. Second operand 8 states. [2019-11-16 00:29:42,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:29:42,550 INFO L93 Difference]: Finished difference Result 92 states and 120 transitions. [2019-11-16 00:29:42,550 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-11-16 00:29:42,551 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 45 [2019-11-16 00:29:42,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:29:42,552 INFO L225 Difference]: With dead ends: 92 [2019-11-16 00:29:42,552 INFO L226 Difference]: Without dead ends: 0 [2019-11-16 00:29:42,558 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2019-11-16 00:29:42,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-16 00:29:42,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-16 00:29:42,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-16 00:29:42,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-16 00:29:42,562 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 45 [2019-11-16 00:29:42,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:29:42,562 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-16 00:29:42,562 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-16 00:29:42,563 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-16 00:29:42,563 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-16 00:29:42,569 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-16 00:29:42,890 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 24 [2019-11-16 00:29:43,045 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 27 [2019-11-16 00:29:43,049 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-16 00:29:43,050 INFO L439 ceAbstractionStarter]: At program point L16(line 16) the Hoare annotation is: (and (<= ULTIMATE.start_main_~x~0 2147483647) (<= 0 (+ ULTIMATE.start_main_~x~0 2147483648))) [2019-11-16 00:29:43,050 INFO L443 ceAbstractionStarter]: For program point L16-1(line 16) no Hoare annotation was computed. [2019-11-16 00:29:43,050 INFO L443 ceAbstractionStarter]: For program point L14(lines 14 17) no Hoare annotation was computed. [2019-11-16 00:29:43,050 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-16 00:29:43,050 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-16 00:29:43,050 INFO L443 ceAbstractionStarter]: For program point mc91FINAL(lines 8 12) no Hoare annotation was computed. [2019-11-16 00:29:43,050 INFO L443 ceAbstractionStarter]: For program point mc91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 10) no Hoare annotation was computed. [2019-11-16 00:29:43,051 INFO L443 ceAbstractionStarter]: For program point mc91Err1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 10) no Hoare annotation was computed. [2019-11-16 00:29:43,051 INFO L443 ceAbstractionStarter]: For program point mc91Err3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 11) no Hoare annotation was computed. [2019-11-16 00:29:43,051 INFO L443 ceAbstractionStarter]: For program point mc91Err2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 11) no Hoare annotation was computed. [2019-11-16 00:29:43,051 INFO L443 ceAbstractionStarter]: For program point L11(line 11) no Hoare annotation was computed. [2019-11-16 00:29:43,051 INFO L443 ceAbstractionStarter]: For program point L10(lines 10 11) no Hoare annotation was computed. [2019-11-16 00:29:43,051 INFO L443 ceAbstractionStarter]: For program point L11-1(line 11) no Hoare annotation was computed. [2019-11-16 00:29:43,051 INFO L443 ceAbstractionStarter]: For program point L10-1(line 10) no Hoare annotation was computed. [2019-11-16 00:29:43,052 INFO L439 ceAbstractionStarter]: At program point L11-2(line 11) the Hoare annotation is: (let ((.cse0 (= mc91_~n |mc91_#in~n|))) (and (or (not (<= |mc91_#in~n| 2147483648)) (not (<= 91 |mc91_#in~n|)) (and (<= mc91_~n 2147483647) .cse0)) (or (and (<= mc91_~n 100) .cse0) (not (<= |mc91_#in~n| 2147483647)) (not (<= 0 (+ |mc91_#in~n| 2147483648)))))) [2019-11-16 00:29:43,052 INFO L443 ceAbstractionStarter]: For program point L10-2(line 10) no Hoare annotation was computed. [2019-11-16 00:29:43,052 INFO L443 ceAbstractionStarter]: For program point L11-3(line 11) no Hoare annotation was computed. [2019-11-16 00:29:43,052 INFO L439 ceAbstractionStarter]: At program point L11-4(line 11) the Hoare annotation is: (let ((.cse0 (= mc91_~n |mc91_#in~n|))) (and (or (not (<= |mc91_#in~n| 2147483647)) (not (<= 0 (+ |mc91_#in~n| 2147483648))) (and (<= 91 |mc91_#t~ret0|) (and (<= |mc91_#t~ret0| 2147483648) .cse0))) (or (not (<= |mc91_#in~n| 2147483648)) (not (<= 91 |mc91_#in~n|)) (and (<= mc91_~n 100) .cse0)))) [2019-11-16 00:29:43,052 INFO L446 ceAbstractionStarter]: At program point mc91ENTRY(lines 8 12) the Hoare annotation is: true [2019-11-16 00:29:43,053 INFO L443 ceAbstractionStarter]: For program point L11-5(line 11) no Hoare annotation was computed. [2019-11-16 00:29:43,053 INFO L443 ceAbstractionStarter]: For program point mc91EXIT(lines 8 12) no Hoare annotation was computed. [2019-11-16 00:29:43,056 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:29:43 BoogieIcfgContainer [2019-11-16 00:29:43,057 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-16 00:29:43,057 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-16 00:29:43,058 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-16 00:29:43,058 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-16 00:29:43,059 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:29:39" (3/4) ... [2019-11-16 00:29:43,063 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-16 00:29:43,080 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure mc91 [2019-11-16 00:29:43,084 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-16 00:29:43,086 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-16 00:29:43,157 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_1af1b7e6-fa38-48dd-95d7-e9f4200f38fd/bin/uautomizer/witness.graphml [2019-11-16 00:29:43,157 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-16 00:29:43,159 INFO L168 Benchmark]: Toolchain (without parser) took 4002.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.1 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -150.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-16 00:29:43,159 INFO L168 Benchmark]: CDTParser took 1.09 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-16 00:29:43,160 INFO L168 Benchmark]: CACSL2BoogieTranslator took 303.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.1 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -169.9 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-11-16 00:29:43,160 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.51 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. [2019-11-16 00:29:43,164 INFO L168 Benchmark]: Boogie Preprocessor took 16.85 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. [2019-11-16 00:29:43,170 INFO L168 Benchmark]: RCFGBuilder took 321.76 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. [2019-11-16 00:29:43,170 INFO L168 Benchmark]: TraceAbstraction took 3224.72 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: -636.3 kB). Peak memory consumption was 245.2 MB. Max. memory is 11.5 GB. [2019-11-16 00:29:43,171 INFO L168 Benchmark]: Witness Printer took 100.13 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: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. [2019-11-16 00:29:43,173 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.09 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 303.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.1 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -169.9 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 31.51 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 16.85 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 321.76 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 3224.72 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: -636.3 kB). Peak memory consumption was 245.2 MB. Max. memory is 11.5 GB. * Witness Printer took 100.13 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: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 11]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 10]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 10]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 11]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 22 locations, 4 error locations. Result: SAFE, OverallTime: 3.1s, OverallIterations: 8, TraceHistogramMax: 7, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, HoareTripleCheckerStatistics: 125 SDtfs, 213 SDslu, 226 SDs, 0 SdLazy, 403 SolverSat, 103 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 93 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=88occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 51 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 58 PreInvPairs, 58 NumberOfFragments, 84 HoareAnnotationTreeSize, 58 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 4 FomulaSimplificationsInter, 309 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 132 NumberOfCodeBlocks, 132 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 123 ConstructedInterpolants, 0 QuantifiedInterpolants, 5895 SizeOfPredicates, 4 NumberOfNonLiveVariables, 39 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 9 InterpolantComputations, 7 PerfectInterpolantSequences, 94/102 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...