./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted/NestedRecursion_1c.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version f470102c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/termination-crafted/NestedRecursion_1c.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 1b5ce1e17bce3e34a2c882b1080bdbc1a62cb801 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-11-28 20:22:35,350 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 20:22:35,353 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 20:22:35,371 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 20:22:35,372 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 20:22:35,374 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 20:22:35,376 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 20:22:35,386 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 20:22:35,392 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 20:22:35,397 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 20:22:35,399 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 20:22:35,401 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 20:22:35,402 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 20:22:35,405 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 20:22:35,407 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 20:22:35,409 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 20:22:35,409 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 20:22:35,410 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 20:22:35,412 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 20:22:35,414 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 20:22:35,416 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 20:22:35,417 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 20:22:35,418 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 20:22:35,419 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 20:22:35,422 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 20:22:35,422 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 20:22:35,422 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 20:22:35,423 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 20:22:35,424 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 20:22:35,425 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 20:22:35,425 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 20:22:35,426 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 20:22:35,427 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 20:22:35,428 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 20:22:35,429 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 20:22:35,429 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 20:22:35,430 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 20:22:35,430 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 20:22:35,431 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 20:22:35,432 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 20:22:35,432 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 20:22:35,433 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-11-28 20:22:35,448 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 20:22:35,449 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 20:22:35,450 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 20:22:35,450 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 20:22:35,450 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 20:22:35,451 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 20:22:35,451 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 20:22:35,451 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 20:22:35,452 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 20:22:35,452 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 20:22:35,452 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 20:22:35,452 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 20:22:35,453 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-28 20:22:35,453 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 20:22:35,453 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 20:22:35,454 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 20:22:35,454 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 20:22:35,454 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 20:22:35,454 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 20:22:35,455 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 20:22:35,455 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 20:22:35,455 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 20:22:35,456 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 20:22:35,456 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 20:22:35,456 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 20:22:35,456 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 20:22:35,457 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 20:22:35,457 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 20:22:35,457 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> 1b5ce1e17bce3e34a2c882b1080bdbc1a62cb801 [2019-11-28 20:22:35,759 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 20:22:35,780 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 20:22:35,783 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 20:22:35,784 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 20:22:35,785 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 20:22:35,787 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/NestedRecursion_1c.c [2019-11-28 20:22:35,855 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3504b9b1f/1ee6e381150f4ddbbe205bfbce69e535/FLAG6f91c390c [2019-11-28 20:22:36,331 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 20:22:36,334 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/NestedRecursion_1c.c [2019-11-28 20:22:36,342 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3504b9b1f/1ee6e381150f4ddbbe205bfbce69e535/FLAG6f91c390c [2019-11-28 20:22:36,707 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3504b9b1f/1ee6e381150f4ddbbe205bfbce69e535 [2019-11-28 20:22:36,711 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 20:22:36,712 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 20:22:36,713 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 20:22:36,713 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 20:22:36,717 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 20:22:36,718 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:22:36" (1/1) ... [2019-11-28 20:22:36,721 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ed6449a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:22:36, skipping insertion in model container [2019-11-28 20:22:36,721 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:22:36" (1/1) ... [2019-11-28 20:22:36,728 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 20:22:36,742 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 20:22:36,919 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:22:36,923 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 20:22:36,938 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:22:36,951 INFO L208 MainTranslator]: Completed translation [2019-11-28 20:22:36,951 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:22:36 WrapperNode [2019-11-28 20:22:36,951 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 20:22:36,952 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 20:22:36,952 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 20:22:36,952 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 20:22:36,961 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:22:36" (1/1) ... [2019-11-28 20:22:36,965 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:22:36" (1/1) ... [2019-11-28 20:22:37,037 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 20:22:37,038 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 20:22:37,038 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 20:22:37,038 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 20:22:37,048 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:22:36" (1/1) ... [2019-11-28 20:22:37,048 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:22:36" (1/1) ... [2019-11-28 20:22:37,049 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:22:36" (1/1) ... [2019-11-28 20:22:37,049 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:22:36" (1/1) ... [2019-11-28 20:22:37,052 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:22:36" (1/1) ... [2019-11-28 20:22:37,054 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:22:36" (1/1) ... [2019-11-28 20:22:37,055 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:22:36" (1/1) ... [2019-11-28 20:22:37,056 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 20:22:37,057 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 20:22:37,057 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 20:22:37,057 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 20:22:37,058 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:22:36" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-11-28 20:22:37,120 INFO L130 BoogieDeclarations]: Found specification of procedure rec1 [2019-11-28 20:22:37,120 INFO L138 BoogieDeclarations]: Found implementation of procedure rec1 [2019-11-28 20:22:37,120 INFO L130 BoogieDeclarations]: Found specification of procedure rec2 [2019-11-28 20:22:37,120 INFO L138 BoogieDeclarations]: Found implementation of procedure rec2 [2019-11-28 20:22:37,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 20:22:37,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 20:22:37,372 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 20:22:37,373 INFO L287 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-28 20:22:37,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:22:37 BoogieIcfgContainer [2019-11-28 20:22:37,378 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 20:22:37,379 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 20:22:37,379 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 20:22:37,383 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 20:22:37,383 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 08:22:36" (1/3) ... [2019-11-28 20:22:37,386 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33cbc1c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:22:37, skipping insertion in model container [2019-11-28 20:22:37,386 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:22:36" (2/3) ... [2019-11-28 20:22:37,388 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33cbc1c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:22:37, skipping insertion in model container [2019-11-28 20:22:37,388 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:22:37" (3/3) ... [2019-11-28 20:22:37,390 INFO L109 eAbstractionObserver]: Analyzing ICFG NestedRecursion_1c.c [2019-11-28 20:22:37,420 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 20:22:37,427 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 10 error locations. [2019-11-28 20:22:37,440 INFO L249 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2019-11-28 20:22:37,471 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 20:22:37,471 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 20:22:37,471 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 20:22:37,472 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 20:22:37,472 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 20:22:37,472 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 20:22:37,472 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 20:22:37,472 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 20:22:37,492 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2019-11-28 20:22:37,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-28 20:22:37,497 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:22:37,497 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-28 20:22:37,498 INFO L410 AbstractCegarLoop]: === Iteration 1 === [rec1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, rec1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, rec1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, rec1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, rec1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, rec1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, rec2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, rec2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, rec2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, rec2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-28 20:22:37,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:22:37,503 INFO L82 PathProgramCache]: Analyzing trace with hash 70122184, now seen corresponding path program 1 times [2019-11-28 20:22:37,511 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:22:37,511 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55231682] [2019-11-28 20:22:37,512 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:22:37,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:22:37,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:22:37,703 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55231682] [2019-11-28 20:22:37,705 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:22:37,705 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 20:22:37,708 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095988985] [2019-11-28 20:22:37,716 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 20:22:37,718 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:22:37,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 20:22:37,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 20:22:37,739 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 5 states. [2019-11-28 20:22:37,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:22:37,875 INFO L93 Difference]: Finished difference Result 44 states and 49 transitions. [2019-11-28 20:22:37,875 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 20:22:37,877 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 5 [2019-11-28 20:22:37,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:22:37,888 INFO L225 Difference]: With dead ends: 44 [2019-11-28 20:22:37,889 INFO L226 Difference]: Without dead ends: 39 [2019-11-28 20:22:37,899 INFO L630 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 [2019-11-28 20:22:37,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-11-28 20:22:37,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2019-11-28 20:22:37,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-11-28 20:22:37,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 44 transitions. [2019-11-28 20:22:37,970 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 44 transitions. Word has length 5 [2019-11-28 20:22:37,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:22:37,971 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 44 transitions. [2019-11-28 20:22:37,972 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 20:22:37,973 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 44 transitions. [2019-11-28 20:22:37,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-28 20:22:37,974 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:22:37,974 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-11-28 20:22:37,975 INFO L410 AbstractCegarLoop]: === Iteration 2 === [rec1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, rec1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, rec1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, rec1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, rec1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, rec1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, rec2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, rec2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, rec2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, rec2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-28 20:22:37,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:22:37,976 INFO L82 PathProgramCache]: Analyzing trace with hash -2121179530, now seen corresponding path program 1 times [2019-11-28 20:22:37,976 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:22:37,977 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726473702] [2019-11-28 20:22:37,977 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:22:37,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:22:38,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:22:38,006 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726473702] [2019-11-28 20:22:38,006 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:22:38,007 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 20:22:38,007 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299498756] [2019-11-28 20:22:38,011 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 20:22:38,011 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:22:38,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 20:22:38,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 20:22:38,012 INFO L87 Difference]: Start difference. First operand 39 states and 44 transitions. Second operand 3 states. [2019-11-28 20:22:38,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:22:38,032 INFO L93 Difference]: Finished difference Result 41 states and 46 transitions. [2019-11-28 20:22:38,032 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 20:22:38,033 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2019-11-28 20:22:38,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:22:38,036 INFO L225 Difference]: With dead ends: 41 [2019-11-28 20:22:38,036 INFO L226 Difference]: Without dead ends: 40 [2019-11-28 20:22:38,037 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 [2019-11-28 20:22:38,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2019-11-28 20:22:38,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 38. [2019-11-28 20:22:38,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2019-11-28 20:22:38,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 43 transitions. [2019-11-28 20:22:38,057 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 43 transitions. Word has length 6 [2019-11-28 20:22:38,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:22:38,058 INFO L462 AbstractCegarLoop]: Abstraction has 38 states and 43 transitions. [2019-11-28 20:22:38,058 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 20:22:38,058 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 43 transitions. [2019-11-28 20:22:38,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-28 20:22:38,061 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:22:38,061 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:22:38,062 INFO L410 AbstractCegarLoop]: === Iteration 3 === [rec1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, rec1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, rec1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, rec1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, rec1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, rec1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, rec2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, rec2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, rec2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, rec2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-28 20:22:38,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:22:38,062 INFO L82 PathProgramCache]: Analyzing trace with hash -509849608, now seen corresponding path program 1 times [2019-11-28 20:22:38,063 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:22:38,063 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301927436] [2019-11-28 20:22:38,063 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:22:38,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:22:38,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:22:38,140 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-28 20:22:38,141 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301927436] [2019-11-28 20:22:38,142 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:22:38,142 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-28 20:22:38,142 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126876893] [2019-11-28 20:22:38,143 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-28 20:22:38,143 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:22:38,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 20:22:38,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-28 20:22:38,144 INFO L87 Difference]: Start difference. First operand 38 states and 43 transitions. Second operand 6 states. [2019-11-28 20:22:38,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:22:38,214 INFO L93 Difference]: Finished difference Result 84 states and 98 transitions. [2019-11-28 20:22:38,214 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-28 20:22:38,215 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2019-11-28 20:22:38,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:22:38,216 INFO L225 Difference]: With dead ends: 84 [2019-11-28 20:22:38,216 INFO L226 Difference]: Without dead ends: 53 [2019-11-28 20:22:38,219 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-11-28 20:22:38,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2019-11-28 20:22:38,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 46. [2019-11-28 20:22:38,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2019-11-28 20:22:38,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 51 transitions. [2019-11-28 20:22:38,235 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 51 transitions. Word has length 16 [2019-11-28 20:22:38,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:22:38,235 INFO L462 AbstractCegarLoop]: Abstraction has 46 states and 51 transitions. [2019-11-28 20:22:38,235 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-28 20:22:38,238 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 51 transitions. [2019-11-28 20:22:38,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-28 20:22:38,240 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:22:38,241 INFO L410 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:22:38,241 INFO L410 AbstractCegarLoop]: === Iteration 4 === [rec1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, rec1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, rec1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, rec1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, rec1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, rec1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, rec2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, rec2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, rec2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, rec2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-28 20:22:38,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:22:38,242 INFO L82 PathProgramCache]: Analyzing trace with hash -786790687, now seen corresponding path program 1 times [2019-11-28 20:22:38,242 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:22:38,243 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842930550] [2019-11-28 20:22:38,243 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:22:38,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:22:38,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:22:38,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:22:38,329 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-11-28 20:22:38,330 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842930550] [2019-11-28 20:22:38,330 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:22:38,331 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 20:22:38,331 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246075912] [2019-11-28 20:22:38,332 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 20:22:38,332 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:22:38,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 20:22:38,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 20:22:38,333 INFO L87 Difference]: Start difference. First operand 46 states and 51 transitions. Second operand 3 states. [2019-11-28 20:22:38,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:22:38,348 INFO L93 Difference]: Finished difference Result 46 states and 51 transitions. [2019-11-28 20:22:38,348 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 20:22:38,349 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2019-11-28 20:22:38,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:22:38,350 INFO L225 Difference]: With dead ends: 46 [2019-11-28 20:22:38,351 INFO L226 Difference]: Without dead ends: 45 [2019-11-28 20:22:38,351 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 20:22:38,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2019-11-28 20:22:38,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2019-11-28 20:22:38,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2019-11-28 20:22:38,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 50 transitions. [2019-11-28 20:22:38,362 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 50 transitions. Word has length 24 [2019-11-28 20:22:38,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:22:38,362 INFO L462 AbstractCegarLoop]: Abstraction has 45 states and 50 transitions. [2019-11-28 20:22:38,362 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 20:22:38,363 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 50 transitions. [2019-11-28 20:22:38,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-28 20:22:38,364 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:22:38,364 INFO L410 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:22:38,364 INFO L410 AbstractCegarLoop]: === Iteration 5 === [rec1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, rec1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, rec1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, rec1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, rec1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, rec1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, rec2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, rec2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, rec2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, rec2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-28 20:22:38,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:22:38,365 INFO L82 PathProgramCache]: Analyzing trace with hash 1379292549, now seen corresponding path program 1 times [2019-11-28 20:22:38,365 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:22:38,366 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171425292] [2019-11-28 20:22:38,366 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:22:38,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:22:38,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:22:38,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:22:38,432 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-11-28 20:22:38,434 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171425292] [2019-11-28 20:22:38,434 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:22:38,434 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 20:22:38,435 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366564200] [2019-11-28 20:22:38,435 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 20:22:38,435 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:22:38,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 20:22:38,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 20:22:38,438 INFO L87 Difference]: Start difference. First operand 45 states and 50 transitions. Second operand 4 states. [2019-11-28 20:22:38,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:22:38,475 INFO L93 Difference]: Finished difference Result 51 states and 59 transitions. [2019-11-28 20:22:38,476 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 20:22:38,476 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2019-11-28 20:22:38,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:22:38,477 INFO L225 Difference]: With dead ends: 51 [2019-11-28 20:22:38,477 INFO L226 Difference]: Without dead ends: 50 [2019-11-28 20:22:38,478 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 20:22:38,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2019-11-28 20:22:38,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2019-11-28 20:22:38,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2019-11-28 20:22:38,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 58 transitions. [2019-11-28 20:22:38,487 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 58 transitions. Word has length 25 [2019-11-28 20:22:38,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:22:38,488 INFO L462 AbstractCegarLoop]: Abstraction has 50 states and 58 transitions. [2019-11-28 20:22:38,488 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 20:22:38,488 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 58 transitions. [2019-11-28 20:22:38,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-11-28 20:22:38,489 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:22:38,489 INFO L410 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:22:38,490 INFO L410 AbstractCegarLoop]: === Iteration 6 === [rec1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, rec1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, rec1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, rec1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, rec1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, rec1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, rec2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, rec2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, rec2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, rec2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-28 20:22:38,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:22:38,490 INFO L82 PathProgramCache]: Analyzing trace with hash -1009751068, now seen corresponding path program 1 times [2019-11-28 20:22:38,490 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:22:38,491 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958480918] [2019-11-28 20:22:38,491 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:22:38,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:22:38,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:22:38,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:22:38,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:22:38,640 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-11-28 20:22:38,641 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958480918] [2019-11-28 20:22:38,641 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:22:38,641 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-28 20:22:38,642 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428511641] [2019-11-28 20:22:38,642 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-28 20:22:38,642 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:22:38,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-28 20:22:38,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-11-28 20:22:38,643 INFO L87 Difference]: Start difference. First operand 50 states and 58 transitions. Second operand 8 states. [2019-11-28 20:22:38,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:22:38,744 INFO L93 Difference]: Finished difference Result 64 states and 74 transitions. [2019-11-28 20:22:38,745 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-28 20:22:38,745 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 37 [2019-11-28 20:22:38,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:22:38,746 INFO L225 Difference]: With dead ends: 64 [2019-11-28 20:22:38,746 INFO L226 Difference]: Without dead ends: 0 [2019-11-28 20:22:38,748 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2019-11-28 20:22:38,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-28 20:22:38,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-28 20:22:38,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-28 20:22:38,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-28 20:22:38,749 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 37 [2019-11-28 20:22:38,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:22:38,749 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 20:22:38,749 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-28 20:22:38,750 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-28 20:22:38,750 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-28 20:22:38,752 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-28 20:22:38,879 INFO L246 CegarLoopResult]: For program point rec1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2019-11-28 20:22:38,879 INFO L246 CegarLoopResult]: For program point rec1FINAL(lines 11 15) no Hoare annotation was computed. [2019-11-28 20:22:38,880 INFO L246 CegarLoopResult]: For program point rec1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2019-11-28 20:22:38,880 INFO L246 CegarLoopResult]: For program point rec1EXIT(lines 11 15) no Hoare annotation was computed. [2019-11-28 20:22:38,880 INFO L246 CegarLoopResult]: For program point L14(line 14) no Hoare annotation was computed. [2019-11-28 20:22:38,880 INFO L249 CegarLoopResult]: At program point rec1ENTRY(lines 11 15) the Hoare annotation is: true [2019-11-28 20:22:38,880 INFO L246 CegarLoopResult]: For program point L14-1(line 14) no Hoare annotation was computed. [2019-11-28 20:22:38,881 INFO L246 CegarLoopResult]: For program point L12(lines 12 13) no Hoare annotation was computed. [2019-11-28 20:22:38,881 INFO L242 CegarLoopResult]: At program point L14-2(line 14) the Hoare annotation is: (not (<= |rec1_#in~i| 0)) [2019-11-28 20:22:38,881 INFO L246 CegarLoopResult]: For program point L14-3(line 14) no Hoare annotation was computed. [2019-11-28 20:22:38,881 INFO L246 CegarLoopResult]: For program point L14-4(line 14) no Hoare annotation was computed. [2019-11-28 20:22:38,881 INFO L246 CegarLoopResult]: For program point rec1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2019-11-28 20:22:38,882 INFO L246 CegarLoopResult]: For program point L14-5(line 14) no Hoare annotation was computed. [2019-11-28 20:22:38,882 INFO L242 CegarLoopResult]: At program point L14-6(line 14) the Hoare annotation is: (not (<= |rec1_#in~i| 0)) [2019-11-28 20:22:38,882 INFO L246 CegarLoopResult]: For program point rec1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2019-11-28 20:22:38,882 INFO L246 CegarLoopResult]: For program point rec1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2019-11-28 20:22:38,882 INFO L246 CegarLoopResult]: For program point L14-7(line 14) no Hoare annotation was computed. [2019-11-28 20:22:38,882 INFO L246 CegarLoopResult]: For program point rec1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2019-11-28 20:22:38,883 INFO L242 CegarLoopResult]: At program point L14-8(line 14) the Hoare annotation is: (not (<= |rec1_#in~i| 0)) [2019-11-28 20:22:38,883 INFO L246 CegarLoopResult]: For program point L14-9(line 14) no Hoare annotation was computed. [2019-11-28 20:22:38,883 INFO L246 CegarLoopResult]: For program point L14-10(line 14) no Hoare annotation was computed. [2019-11-28 20:22:38,883 INFO L246 CegarLoopResult]: For program point L14-11(line 14) no Hoare annotation was computed. [2019-11-28 20:22:38,883 INFO L246 CegarLoopResult]: For program point rec2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2019-11-28 20:22:38,883 INFO L246 CegarLoopResult]: For program point rec2FINAL(lines 17 21) no Hoare annotation was computed. [2019-11-28 20:22:38,883 INFO L246 CegarLoopResult]: For program point rec2EXIT(lines 17 21) no Hoare annotation was computed. [2019-11-28 20:22:38,884 INFO L246 CegarLoopResult]: For program point L20(line 20) no Hoare annotation was computed. [2019-11-28 20:22:38,884 INFO L246 CegarLoopResult]: For program point L20-1(line 20) no Hoare annotation was computed. [2019-11-28 20:22:38,884 INFO L246 CegarLoopResult]: For program point L18(lines 18 19) no Hoare annotation was computed. [2019-11-28 20:22:38,884 INFO L242 CegarLoopResult]: At program point L20-2(line 20) the Hoare annotation is: (or (and (<= rec2_~j 2147483647) (<= 1 rec2_~j)) (not (<= |rec2_#in~j| 2147483647))) [2019-11-28 20:22:38,884 INFO L246 CegarLoopResult]: For program point L20-3(line 20) no Hoare annotation was computed. [2019-11-28 20:22:38,885 INFO L242 CegarLoopResult]: At program point L20-4(line 20) the Hoare annotation is: (or (and (<= rec2_~j 2147483647) (<= 1 rec2_~j) (<= |rec2_#t~ret3| 0)) (not (<= |rec2_#in~j| 2147483647))) [2019-11-28 20:22:38,885 INFO L246 CegarLoopResult]: For program point L20-5(line 20) no Hoare annotation was computed. [2019-11-28 20:22:38,885 INFO L246 CegarLoopResult]: For program point L20-6(line 20) no Hoare annotation was computed. [2019-11-28 20:22:38,885 INFO L246 CegarLoopResult]: For program point L20-7(line 20) no Hoare annotation was computed. [2019-11-28 20:22:38,885 INFO L249 CegarLoopResult]: At program point rec2ENTRY(lines 17 21) the Hoare annotation is: true [2019-11-28 20:22:38,885 INFO L246 CegarLoopResult]: For program point rec2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2019-11-28 20:22:38,885 INFO L246 CegarLoopResult]: For program point rec2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2019-11-28 20:22:38,886 INFO L246 CegarLoopResult]: For program point rec2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2019-11-28 20:22:38,886 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-28 20:22:38,886 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-28 20:22:38,886 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-28 20:22:38,886 INFO L242 CegarLoopResult]: At program point L25(line 25) the Hoare annotation is: (<= ULTIMATE.start_main_~x~0 2147483647) [2019-11-28 20:22:38,886 INFO L246 CegarLoopResult]: For program point L25-1(line 25) no Hoare annotation was computed. [2019-11-28 20:22:38,887 INFO L246 CegarLoopResult]: For program point L23(lines 23 26) no Hoare annotation was computed. [2019-11-28 20:22:38,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 08:22:38 BoogieIcfgContainer [2019-11-28 20:22:38,898 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 20:22:38,898 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 20:22:38,899 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 20:22:38,899 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 20:22:38,900 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:22:37" (3/4) ... [2019-11-28 20:22:38,912 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-28 20:22:38,920 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure rec1 [2019-11-28 20:22:38,921 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure rec2 [2019-11-28 20:22:38,932 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-28 20:22:38,932 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-28 20:22:38,985 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 20:22:38,985 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 20:22:38,988 INFO L168 Benchmark]: Toolchain (without parser) took 2274.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 959.0 MB in the beginning and 1.0 GB in the end (delta: -54.3 MB). Peak memory consumption was 92.5 MB. Max. memory is 11.5 GB. [2019-11-28 20:22:38,989 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 20:22:38,989 INFO L168 Benchmark]: CACSL2BoogieTranslator took 238.32 ms. Allocated memory is still 1.0 GB. Free memory was 959.0 MB in the beginning and 948.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-28 20:22:38,990 INFO L168 Benchmark]: Boogie Procedure Inliner took 85.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 948.3 MB in the beginning and 1.1 GB in the end (delta: -195.2 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2019-11-28 20:22:38,991 INFO L168 Benchmark]: Boogie Preprocessor took 18.38 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. [2019-11-28 20:22:38,991 INFO L168 Benchmark]: RCFGBuilder took 321.24 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: 31.6 MB). Peak memory consumption was 31.6 MB. Max. memory is 11.5 GB. [2019-11-28 20:22:38,992 INFO L168 Benchmark]: TraceAbstraction took 1518.81 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 98.7 MB). Peak memory consumption was 98.7 MB. Max. memory is 11.5 GB. [2019-11-28 20:22:38,992 INFO L168 Benchmark]: Witness Printer took 86.92 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 20:22:38,996 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 238.32 ms. Allocated memory is still 1.0 GB. Free memory was 959.0 MB in the beginning and 948.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 85.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 948.3 MB in the beginning and 1.1 GB in the end (delta: -195.2 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 18.38 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 321.24 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: 31.6 MB). Peak memory consumption was 31.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1518.81 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 98.7 MB). Peak memory consumption was 98.7 MB. Max. memory is 11.5 GB. * Witness Printer took 86.92 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 10 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 44 locations, 10 error locations. Result: SAFE, OverallTime: 1.2s, OverallIterations: 6, TraceHistogramMax: 4, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 221 SDtfs, 54 SDslu, 493 SDs, 0 SdLazy, 125 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 43 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=50occurred in iteration=5, 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, 6 MinimizatonAttempts, 9 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 47 PreInvPairs, 51 NumberOfFragments, 44 HoareAnnotationTreeSize, 47 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 42 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 113 NumberOfCodeBlocks, 113 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 107 ConstructedInterpolants, 0 QuantifiedInterpolants, 4583 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 47/47 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...