./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/memsafety-ext3/getNumbers1-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) 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/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/memsafety-ext3/getNumbers1-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 60fa12f4a8e344f82de5faf31b8f2cbfbaaacd93 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 20:19:06,498 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 20:19:06,501 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 20:19:06,518 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 20:19:06,518 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 20:19:06,520 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 20:19:06,522 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 20:19:06,531 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 20:19:06,536 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 20:19:06,539 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 20:19:06,540 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 20:19:06,542 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 20:19:06,543 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 20:19:06,545 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 20:19:06,546 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 20:19:06,548 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 20:19:06,549 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 20:19:06,550 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 20:19:06,553 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 20:19:06,556 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 20:19:06,560 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 20:19:06,563 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 20:19:06,564 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 20:19:06,566 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 20:19:06,570 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 20:19:06,571 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 20:19:06,571 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 20:19:06,573 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 20:19:06,573 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 20:19:06,575 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 20:19:06,575 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 20:19:06,576 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 20:19:06,576 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 20:19:06,578 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 20:19:06,579 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 20:19:06,579 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 20:19:06,580 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 20:19:06,581 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 20:19:06,581 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 20:19:06,582 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 20:19:06,583 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 20:19:06,584 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-11-28 20:19:06,613 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 20:19:06,614 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 20:19:06,616 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 20:19:06,616 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 20:19:06,616 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 20:19:06,617 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 20:19:06,617 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 20:19:06,617 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 20:19:06,617 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 20:19:06,618 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 20:19:06,619 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 20:19:06,619 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-28 20:19:06,620 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-28 20:19:06,620 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-28 20:19:06,620 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 20:19:06,621 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-28 20:19:06,621 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 20:19:06,621 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 20:19:06,621 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 20:19:06,622 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 20:19:06,622 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 20:19:06,622 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 20:19:06,623 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 20:19:06,623 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 20:19:06,623 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 20:19:06,623 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 20:19:06,624 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 20:19:06,624 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 20:19:06,624 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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 60fa12f4a8e344f82de5faf31b8f2cbfbaaacd93 [2019-11-28 20:19:06,936 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 20:19:06,948 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 20:19:06,952 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 20:19:06,954 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 20:19:06,954 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 20:19:06,955 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/memsafety-ext3/getNumbers1-2.c [2019-11-28 20:19:07,023 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b265bfd00/c17c2917d4444001acdea96adde5f418/FLAGb2dcdba82 [2019-11-28 20:19:07,487 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 20:19:07,488 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/memsafety-ext3/getNumbers1-2.c [2019-11-28 20:19:07,494 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b265bfd00/c17c2917d4444001acdea96adde5f418/FLAGb2dcdba82 [2019-11-28 20:19:07,887 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b265bfd00/c17c2917d4444001acdea96adde5f418 [2019-11-28 20:19:07,890 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 20:19:07,892 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-28 20:19:07,895 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 20:19:07,895 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 20:19:07,899 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 20:19:07,900 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:19:07" (1/1) ... [2019-11-28 20:19:07,903 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@737469c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:19:07, skipping insertion in model container [2019-11-28 20:19:07,903 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:19:07" (1/1) ... [2019-11-28 20:19:07,911 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 20:19:07,927 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 20:19:08,125 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:19:08,141 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 20:19:08,158 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:19:08,233 INFO L208 MainTranslator]: Completed translation [2019-11-28 20:19:08,234 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:19:08 WrapperNode [2019-11-28 20:19:08,235 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 20:19:08,236 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 20:19:08,237 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 20:19:08,237 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 20:19:08,249 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:19:08" (1/1) ... [2019-11-28 20:19:08,249 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:19:08" (1/1) ... [2019-11-28 20:19:08,256 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:19:08" (1/1) ... [2019-11-28 20:19:08,257 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:19:08" (1/1) ... [2019-11-28 20:19:08,264 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:19:08" (1/1) ... [2019-11-28 20:19:08,268 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:19:08" (1/1) ... [2019-11-28 20:19:08,269 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:19:08" (1/1) ... [2019-11-28 20:19:08,271 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 20:19:08,272 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 20:19:08,272 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 20:19:08,272 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 20:19:08,273 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:19:08" (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 20:19:08,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-28 20:19:08,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 20:19:08,329 INFO L138 BoogieDeclarations]: Found implementation of procedure getNumbers [2019-11-28 20:19:08,330 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-28 20:19:08,330 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-28 20:19:08,330 INFO L130 BoogieDeclarations]: Found specification of procedure getNumbers [2019-11-28 20:19:08,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-28 20:19:08,330 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-28 20:19:08,330 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 20:19:08,331 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-28 20:19:08,331 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-28 20:19:08,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-28 20:19:08,331 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 20:19:08,331 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 20:19:08,626 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 20:19:08,626 INFO L287 CfgBuilder]: Removed 2 assume(true) statements. [2019-11-28 20:19:08,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:19:08 BoogieIcfgContainer [2019-11-28 20:19:08,628 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 20:19:08,629 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 20:19:08,629 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 20:19:08,632 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 20:19:08,632 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 08:19:07" (1/3) ... [2019-11-28 20:19:08,633 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ad6c45e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:19:08, skipping insertion in model container [2019-11-28 20:19:08,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:19:08" (2/3) ... [2019-11-28 20:19:08,634 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ad6c45e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:19:08, skipping insertion in model container [2019-11-28 20:19:08,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:19:08" (3/3) ... [2019-11-28 20:19:08,636 INFO L109 eAbstractionObserver]: Analyzing ICFG getNumbers1-2.c [2019-11-28 20:19:08,644 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 20:19:08,651 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2019-11-28 20:19:08,663 INFO L249 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2019-11-28 20:19:08,681 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 20:19:08,681 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-28 20:19:08,681 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 20:19:08,682 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 20:19:08,682 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 20:19:08,682 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 20:19:08,682 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 20:19:08,682 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 20:19:08,696 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2019-11-28 20:19:08,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-28 20:19:08,705 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:19:08,706 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:19:08,707 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2019-11-28 20:19:08,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:19:08,713 INFO L82 PathProgramCache]: Analyzing trace with hash 543879226, now seen corresponding path program 1 times [2019-11-28 20:19:08,722 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:19:08,723 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498096720] [2019-11-28 20:19:08,723 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:19:08,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:19:09,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:19:09,058 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 20:19:09,059 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498096720] [2019-11-28 20:19:09,061 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:19:09,061 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 20:19:09,062 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280334043] [2019-11-28 20:19:09,068 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 20:19:09,069 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:19:09,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 20:19:09,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 20:19:09,096 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 4 states. [2019-11-28 20:19:09,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:19:09,315 INFO L93 Difference]: Finished difference Result 42 states and 45 transitions. [2019-11-28 20:19:09,316 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 20:19:09,318 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-11-28 20:19:09,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:19:09,329 INFO L225 Difference]: With dead ends: 42 [2019-11-28 20:19:09,329 INFO L226 Difference]: Without dead ends: 34 [2019-11-28 20:19:09,333 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-28 20:19:09,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-11-28 20:19:09,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 21. [2019-11-28 20:19:09,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-11-28 20:19:09,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2019-11-28 20:19:09,369 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 9 [2019-11-28 20:19:09,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:19:09,370 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2019-11-28 20:19:09,370 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 20:19:09,370 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2019-11-28 20:19:09,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-28 20:19:09,371 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:19:09,371 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:19:09,372 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2019-11-28 20:19:09,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:19:09,372 INFO L82 PathProgramCache]: Analyzing trace with hash 543879227, now seen corresponding path program 1 times [2019-11-28 20:19:09,372 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:19:09,373 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256562404] [2019-11-28 20:19:09,373 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:19:09,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:19:09,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:19:09,520 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 20:19:09,524 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256562404] [2019-11-28 20:19:09,524 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:19:09,524 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 20:19:09,524 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980603019] [2019-11-28 20:19:09,526 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 20:19:09,526 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:19:09,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 20:19:09,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-28 20:19:09,527 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 5 states. [2019-11-28 20:19:09,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:19:09,670 INFO L93 Difference]: Finished difference Result 24 states and 25 transitions. [2019-11-28 20:19:09,670 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-28 20:19:09,671 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2019-11-28 20:19:09,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:19:09,672 INFO L225 Difference]: With dead ends: 24 [2019-11-28 20:19:09,672 INFO L226 Difference]: Without dead ends: 24 [2019-11-28 20:19:09,673 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-11-28 20:19:09,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-11-28 20:19:09,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 23. [2019-11-28 20:19:09,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-11-28 20:19:09,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2019-11-28 20:19:09,678 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 9 [2019-11-28 20:19:09,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:19:09,679 INFO L462 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2019-11-28 20:19:09,679 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 20:19:09,679 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2019-11-28 20:19:09,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-28 20:19:09,680 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:19:09,680 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:19:09,680 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2019-11-28 20:19:09,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:19:09,681 INFO L82 PathProgramCache]: Analyzing trace with hash 2089391026, now seen corresponding path program 1 times [2019-11-28 20:19:09,681 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:19:09,682 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76154788] [2019-11-28 20:19:09,682 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:19:09,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:19:09,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:19:09,845 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:19:09,845 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76154788] [2019-11-28 20:19:09,846 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [475134948] [2019-11-28 20:19:09,846 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-11-28 20:19:09,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:19:09,912 INFO L264 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-28 20:19:09,920 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:19:10,021 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 20:19:10,022 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 25 [2019-11-28 20:19:10,023 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 20:19:10,050 INFO L614 ElimStorePlain]: treesize reduction 10, result has 64.3 percent of original size [2019-11-28 20:19:10,054 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-28 20:19:10,054 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:13, output treesize:9 [2019-11-28 20:19:10,072 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:19:10,075 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-28 20:19:10,076 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2019-11-28 20:19:10,076 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405990208] [2019-11-28 20:19:10,076 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-28 20:19:10,077 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:19:10,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 20:19:10,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-28 20:19:10,078 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand 6 states. [2019-11-28 20:19:10,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:19:10,303 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2019-11-28 20:19:10,303 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-28 20:19:10,304 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12 [2019-11-28 20:19:10,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:19:10,304 INFO L225 Difference]: With dead ends: 27 [2019-11-28 20:19:10,305 INFO L226 Difference]: Without dead ends: 27 [2019-11-28 20:19:10,305 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2019-11-28 20:19:10,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-11-28 20:19:10,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 26. [2019-11-28 20:19:10,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-11-28 20:19:10,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2019-11-28 20:19:10,313 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 12 [2019-11-28 20:19:10,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:19:10,314 INFO L462 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2019-11-28 20:19:10,314 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-28 20:19:10,314 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2019-11-28 20:19:10,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-28 20:19:10,315 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:19:10,315 INFO L410 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:19:10,520 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 20:19:10,521 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2019-11-28 20:19:10,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:19:10,522 INFO L82 PathProgramCache]: Analyzing trace with hash -1912985381, now seen corresponding path program 2 times [2019-11-28 20:19:10,523 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:19:10,523 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448371046] [2019-11-28 20:19:10,524 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:19:10,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:19:10,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:19:10,735 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:19:10,735 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448371046] [2019-11-28 20:19:10,736 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [18768949] [2019-11-28 20:19:10,736 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 20:19:10,784 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-28 20:19:10,784 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-28 20:19:10,785 INFO L264 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-28 20:19:10,790 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:19:10,823 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 20:19:10,824 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 25 [2019-11-28 20:19:10,825 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 20:19:10,846 INFO L614 ElimStorePlain]: treesize reduction 10, result has 64.3 percent of original size [2019-11-28 20:19:10,848 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-28 20:19:10,848 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:13, output treesize:9 [2019-11-28 20:19:10,944 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:19:10,945 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-28 20:19:10,945 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 10 [2019-11-28 20:19:10,945 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625369168] [2019-11-28 20:19:10,946 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-28 20:19:10,946 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:19:10,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-28 20:19:10,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-11-28 20:19:10,947 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand 7 states. [2019-11-28 20:19:11,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:19:11,002 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2019-11-28 20:19:11,003 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-28 20:19:11,003 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2019-11-28 20:19:11,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:19:11,004 INFO L225 Difference]: With dead ends: 26 [2019-11-28 20:19:11,004 INFO L226 Difference]: Without dead ends: 26 [2019-11-28 20:19:11,005 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-11-28 20:19:11,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2019-11-28 20:19:11,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 24. [2019-11-28 20:19:11,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-11-28 20:19:11,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2019-11-28 20:19:11,010 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 15 [2019-11-28 20:19:11,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:19:11,010 INFO L462 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2019-11-28 20:19:11,010 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-28 20:19:11,010 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2019-11-28 20:19:11,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-28 20:19:11,011 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:19:11,011 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:19:11,223 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 20:19:11,224 INFO L410 AbstractCegarLoop]: === Iteration 5 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2019-11-28 20:19:11,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:19:11,224 INFO L82 PathProgramCache]: Analyzing trace with hash 2027302431, now seen corresponding path program 1 times [2019-11-28 20:19:11,225 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:19:11,225 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856541706] [2019-11-28 20:19:11,226 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:19:11,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:19:11,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:19:11,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:19:11,378 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-28 20:19:11,379 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856541706] [2019-11-28 20:19:11,379 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:19:11,379 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-28 20:19:11,379 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933048173] [2019-11-28 20:19:11,381 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-28 20:19:11,382 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:19:11,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-28 20:19:11,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-11-28 20:19:11,383 INFO L87 Difference]: Start difference. First operand 24 states and 25 transitions. Second operand 8 states. [2019-11-28 20:19:11,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:19:11,541 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2019-11-28 20:19:11,542 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-28 20:19:11,542 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 20 [2019-11-28 20:19:11,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:19:11,543 INFO L225 Difference]: With dead ends: 23 [2019-11-28 20:19:11,543 INFO L226 Difference]: Without dead ends: 23 [2019-11-28 20:19:11,543 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2019-11-28 20:19:11,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-11-28 20:19:11,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2019-11-28 20:19:11,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-11-28 20:19:11,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2019-11-28 20:19:11,551 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 20 [2019-11-28 20:19:11,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:19:11,552 INFO L462 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2019-11-28 20:19:11,552 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-28 20:19:11,552 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2019-11-28 20:19:11,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-28 20:19:11,553 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:19:11,553 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:19:11,554 INFO L410 AbstractCegarLoop]: === Iteration 6 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2019-11-28 20:19:11,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:19:11,554 INFO L82 PathProgramCache]: Analyzing trace with hash 2027302432, now seen corresponding path program 1 times [2019-11-28 20:19:11,555 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:19:11,555 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513435486] [2019-11-28 20:19:11,556 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:19:11,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:19:11,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:19:11,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:19:11,723 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:19:11,724 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513435486] [2019-11-28 20:19:11,724 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2137119346] [2019-11-28 20:19:11,724 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 20:19:11,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:19:11,781 INFO L264 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-28 20:19:11,783 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:19:11,788 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:19:11,789 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-28 20:19:11,789 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5] total 10 [2019-11-28 20:19:11,789 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180922459] [2019-11-28 20:19:11,790 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-28 20:19:11,790 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:19:11,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-28 20:19:11,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-11-28 20:19:11,791 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand 10 states. [2019-11-28 20:19:12,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:19:12,015 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2019-11-28 20:19:12,015 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-28 20:19:12,016 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 20 [2019-11-28 20:19:12,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:19:12,016 INFO L225 Difference]: With dead ends: 28 [2019-11-28 20:19:12,017 INFO L226 Difference]: Without dead ends: 28 [2019-11-28 20:19:12,018 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2019-11-28 20:19:12,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-11-28 20:19:12,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 26. [2019-11-28 20:19:12,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-11-28 20:19:12,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2019-11-28 20:19:12,025 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 20 [2019-11-28 20:19:12,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:19:12,025 INFO L462 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2019-11-28 20:19:12,026 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-28 20:19:12,026 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2019-11-28 20:19:12,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-28 20:19:12,027 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:19:12,027 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:19:12,228 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 20:19:12,228 INFO L410 AbstractCegarLoop]: === Iteration 7 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2019-11-28 20:19:12,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:19:12,229 INFO L82 PathProgramCache]: Analyzing trace with hash -1378383287, now seen corresponding path program 2 times [2019-11-28 20:19:12,229 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:19:12,229 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831724433] [2019-11-28 20:19:12,229 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:19:12,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:19:12,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:19:12,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:19:12,423 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:19:12,424 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831724433] [2019-11-28 20:19:12,424 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [862381497] [2019-11-28 20:19:12,425 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 20:19:12,494 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2019-11-28 20:19:12,494 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-28 20:19:12,495 INFO L264 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 18 conjunts are in the unsatisfiable core [2019-11-28 20:19:12,502 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:19:12,530 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 20:19:12,531 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 25 [2019-11-28 20:19:12,532 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 20:19:12,554 INFO L614 ElimStorePlain]: treesize reduction 10, result has 64.3 percent of original size [2019-11-28 20:19:12,555 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-28 20:19:12,556 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:13, output treesize:9 [2019-11-28 20:19:12,628 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-11-28 20:19:12,629 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-28 20:19:12,629 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 14 [2019-11-28 20:19:12,629 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30376404] [2019-11-28 20:19:12,630 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-28 20:19:12,630 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:19:12,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-28 20:19:12,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2019-11-28 20:19:12,631 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand 7 states. [2019-11-28 20:19:12,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:19:12,727 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2019-11-28 20:19:12,728 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-28 20:19:12,728 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2019-11-28 20:19:12,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:19:12,728 INFO L225 Difference]: With dead ends: 26 [2019-11-28 20:19:12,728 INFO L226 Difference]: Without dead ends: 0 [2019-11-28 20:19:12,729 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2019-11-28 20:19:12,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-28 20:19:12,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-28 20:19:12,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-28 20:19:12,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-28 20:19:12,730 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 23 [2019-11-28 20:19:12,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:19:12,730 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 20:19:12,730 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-28 20:19:12,730 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-28 20:19:12,730 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-28 20:19:12,931 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 20:19:12,937 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 08:19:12 BoogieIcfgContainer [2019-11-28 20:19:12,937 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 20:19:12,938 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 20:19:12,938 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 20:19:12,938 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 20:19:12,938 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:19:08" (3/4) ... [2019-11-28 20:19:12,944 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-28 20:19:12,950 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2019-11-28 20:19:12,951 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2019-11-28 20:19:12,951 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure getNumbers [2019-11-28 20:19:12,957 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2019-11-28 20:19:12,958 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2019-11-28 20:19:12,958 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-28 20:19:12,958 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-28 20:19:12,995 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 20:19:12,995 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 20:19:12,997 INFO L168 Benchmark]: Toolchain (without parser) took 5104.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 207.1 MB). Free memory was 961.7 MB in the beginning and 1.2 GB in the end (delta: -191.0 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2019-11-28 20:19:12,997 INFO L168 Benchmark]: CDTParser took 0.27 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 20:19:12,998 INFO L168 Benchmark]: CACSL2BoogieTranslator took 340.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -173.7 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. [2019-11-28 20:19:13,000 INFO L168 Benchmark]: Boogie Preprocessor took 35.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-28 20:19:13,001 INFO L168 Benchmark]: RCFGBuilder took 355.91 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: 20.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. [2019-11-28 20:19:13,001 INFO L168 Benchmark]: TraceAbstraction took 4308.37 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 68.2 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -44.2 MB). Peak memory consumption was 24.0 MB. Max. memory is 11.5 GB. [2019-11-28 20:19:13,002 INFO L168 Benchmark]: Witness Printer took 57.49 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 20:19:13,008 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 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 340.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -173.7 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 35.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 355.91 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: 20.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4308.37 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 68.2 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -44.2 MB). Peak memory consumption was 24.0 MB. Max. memory is 11.5 GB. * Witness Printer took 57.49 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 15]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 20]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 20]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 9]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 9]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 5 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 28 locations, 5 error locations. Result: SAFE, OverallTime: 4.2s, OverallIterations: 7, TraceHistogramMax: 3, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 96 SDtfs, 166 SDslu, 141 SDs, 0 SdLazy, 326 SolverSat, 40 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 135 GetRequests, 70 SyntacticMatches, 4 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 19 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 178 NumberOfCodeBlocks, 169 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 167 ConstructedInterpolants, 0 QuantifiedInterpolants, 21226 SizeOfPredicates, 6 NumberOfNonLiveVariables, 364 ConjunctsInSsa, 38 ConjunctsInUnsatCore, 11 InterpolantComputations, 5 PerfectInterpolantSequences, 24/57 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...