./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/memsafety-ext3/getNumbers3.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -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/getNumbers3.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 c8f17cf5334c3a5b079beafc57a2e2bffaea721f ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 06:16:53,495 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 06:16:53,497 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 06:16:53,537 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 06:16:53,538 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 06:16:53,551 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 06:16:53,554 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 06:16:53,556 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 06:16:53,559 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 06:16:53,560 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 06:16:53,562 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 06:16:53,565 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 06:16:53,565 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 06:16:53,569 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 06:16:53,579 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 06:16:53,580 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 06:16:53,582 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 06:16:53,585 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 06:16:53,586 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 06:16:53,590 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 06:16:53,595 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 06:16:53,597 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 06:16:53,598 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 06:16:53,600 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 06:16:53,605 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 06:16:53,606 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 06:16:53,606 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 06:16:53,608 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 06:16:53,609 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 06:16:53,610 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 06:16:53,610 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 06:16:53,611 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 06:16:53,611 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 06:16:53,612 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 06:16:53,614 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 06:16:53,614 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 06:16:53,615 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 06:16:53,615 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 06:16:53,615 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 06:16:53,618 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 06:16:53,619 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 06:16:53,620 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2020-10-20 06:16:53,659 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 06:16:53,659 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 06:16:53,660 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 06:16:53,661 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 06:16:53,661 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 06:16:53,661 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 06:16:53,662 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 06:16:53,662 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 06:16:53,662 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 06:16:53,662 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 06:16:53,662 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 06:16:53,663 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-20 06:16:53,663 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-20 06:16:53,663 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-10-20 06:16:53,663 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 06:16:53,664 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-20 06:16:53,664 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 06:16:53,664 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 06:16:53,665 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 06:16:53,665 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 06:16:53,665 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 06:16:53,665 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 06:16:53,666 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 06:16:53,666 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 06:16:53,666 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 06:16:53,666 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 06:16:53,667 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 06:16:53,667 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 06:16:53,667 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 -> c8f17cf5334c3a5b079beafc57a2e2bffaea721f [2020-10-20 06:16:53,863 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 06:16:53,876 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 06:16:53,879 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 06:16:53,881 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 06:16:53,881 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 06:16:53,882 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/memsafety-ext3/getNumbers3.c [2020-10-20 06:16:53,951 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2f426f90/a70b53d8906449c08e4ea050b7d67204/FLAG88836824e [2020-10-20 06:16:54,453 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 06:16:54,454 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/memsafety-ext3/getNumbers3.c [2020-10-20 06:16:54,460 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2f426f90/a70b53d8906449c08e4ea050b7d67204/FLAG88836824e [2020-10-20 06:16:54,873 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2f426f90/a70b53d8906449c08e4ea050b7d67204 [2020-10-20 06:16:54,877 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 06:16:54,884 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-20 06:16:54,885 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 06:16:54,885 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 06:16:54,889 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 06:16:54,890 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:16:54" (1/1) ... [2020-10-20 06:16:54,894 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d667dea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:16:54, skipping insertion in model container [2020-10-20 06:16:54,895 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:16:54" (1/1) ... [2020-10-20 06:16:54,903 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 06:16:54,919 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 06:16:55,227 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:16:55,246 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 06:16:55,265 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:16:55,285 INFO L208 MainTranslator]: Completed translation [2020-10-20 06:16:55,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:16:55 WrapperNode [2020-10-20 06:16:55,286 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 06:16:55,287 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 06:16:55,287 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 06:16:55,287 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 06:16:55,301 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:16:55" (1/1) ... [2020-10-20 06:16:55,302 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:16:55" (1/1) ... [2020-10-20 06:16:55,312 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:16:55" (1/1) ... [2020-10-20 06:16:55,314 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:16:55" (1/1) ... [2020-10-20 06:16:55,325 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:16:55" (1/1) ... [2020-10-20 06:16:55,333 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:16:55" (1/1) ... [2020-10-20 06:16:55,340 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:16:55" (1/1) ... [2020-10-20 06:16:55,342 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 06:16:55,343 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 06:16:55,344 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 06:16:55,344 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 06:16:55,345 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:16:55" (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 [2020-10-20 06:16:55,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-20 06:16:55,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 06:16:55,398 INFO L138 BoogieDeclarations]: Found implementation of procedure getNumbers [2020-10-20 06:16:55,398 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-20 06:16:55,398 INFO L130 BoogieDeclarations]: Found specification of procedure getNumbers [2020-10-20 06:16:55,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-20 06:16:55,399 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-20 06:16:55,399 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-20 06:16:55,399 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 06:16:55,399 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 06:16:55,399 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-20 06:16:55,400 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 06:16:55,634 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 06:16:55,634 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-20 06:16:55,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:16:55 BoogieIcfgContainer [2020-10-20 06:16:55,636 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 06:16:55,637 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 06:16:55,638 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 06:16:55,641 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 06:16:55,641 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 06:16:54" (1/3) ... [2020-10-20 06:16:55,642 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20dd2748 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 06:16:55, skipping insertion in model container [2020-10-20 06:16:55,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:16:55" (2/3) ... [2020-10-20 06:16:55,643 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20dd2748 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 06:16:55, skipping insertion in model container [2020-10-20 06:16:55,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:16:55" (3/3) ... [2020-10-20 06:16:55,646 INFO L111 eAbstractionObserver]: Analyzing ICFG getNumbers3.c [2020-10-20 06:16:55,661 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 06:16:55,669 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-20 06:16:55,695 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-20 06:16:55,730 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 06:16:55,730 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-20 06:16:55,730 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 06:16:55,731 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 06:16:55,731 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 06:16:55,731 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 06:16:55,732 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 06:16:55,732 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 06:16:55,749 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2020-10-20 06:16:55,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-20 06:16:55,764 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:16:55,765 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:16:55,765 INFO L429 AbstractCegarLoop]: === Iteration 1 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2020-10-20 06:16:55,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:16:55,771 INFO L82 PathProgramCache]: Analyzing trace with hash -335730452, now seen corresponding path program 1 times [2020-10-20 06:16:55,779 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:16:55,780 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153127052] [2020-10-20 06:16:55,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:16:55,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:16:55,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:16:56,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:16:56,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:16:56,021 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153127052] [2020-10-20 06:16:56,022 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:16:56,022 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 06:16:56,023 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797490370] [2020-10-20 06:16:56,028 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 06:16:56,029 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:16:56,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 06:16:56,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 06:16:56,043 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 4 states. [2020-10-20 06:16:56,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:16:56,185 INFO L93 Difference]: Finished difference Result 33 states and 34 transitions. [2020-10-20 06:16:56,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 06:16:56,188 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-20 06:16:56,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:16:56,197 INFO L225 Difference]: With dead ends: 33 [2020-10-20 06:16:56,198 INFO L226 Difference]: Without dead ends: 28 [2020-10-20 06:16:56,200 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-20 06:16:56,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-10-20 06:16:56,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 18. [2020-10-20 06:16:56,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-10-20 06:16:56,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2020-10-20 06:16:56,235 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 9 [2020-10-20 06:16:56,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:16:56,235 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2020-10-20 06:16:56,236 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 06:16:56,236 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2020-10-20 06:16:56,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-20 06:16:56,237 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:16:56,237 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:16:56,237 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 06:16:56,238 INFO L429 AbstractCegarLoop]: === Iteration 2 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2020-10-20 06:16:56,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:16:56,238 INFO L82 PathProgramCache]: Analyzing trace with hash -335730451, now seen corresponding path program 1 times [2020-10-20 06:16:56,239 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:16:56,239 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166624250] [2020-10-20 06:16:56,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:16:56,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:16:56,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:16:56,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:16:56,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:16:56,370 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166624250] [2020-10-20 06:16:56,370 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:16:56,371 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 06:16:56,371 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152476831] [2020-10-20 06:16:56,373 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 06:16:56,373 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:16:56,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 06:16:56,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-20 06:16:56,374 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 5 states. [2020-10-20 06:16:56,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:16:56,501 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2020-10-20 06:16:56,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 06:16:56,502 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-10-20 06:16:56,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:16:56,503 INFO L225 Difference]: With dead ends: 21 [2020-10-20 06:16:56,503 INFO L226 Difference]: Without dead ends: 21 [2020-10-20 06:16:56,504 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-20 06:16:56,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-10-20 06:16:56,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2020-10-20 06:16:56,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-10-20 06:16:56,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2020-10-20 06:16:56,509 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 9 [2020-10-20 06:16:56,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:16:56,510 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2020-10-20 06:16:56,510 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 06:16:56,510 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2020-10-20 06:16:56,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-20 06:16:56,511 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:16:56,511 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:16:56,512 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 06:16:56,512 INFO L429 AbstractCegarLoop]: === Iteration 3 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2020-10-20 06:16:56,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:16:56,513 INFO L82 PathProgramCache]: Analyzing trace with hash 1232932722, now seen corresponding path program 1 times [2020-10-20 06:16:56,513 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:16:56,514 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167409802] [2020-10-20 06:16:56,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:16:56,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:16:56,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:16:56,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:16:56,650 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:16:56,650 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167409802] [2020-10-20 06:16:56,651 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1516331781] [2020-10-20 06:16:56,651 INFO L95 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 [2020-10-20 06:16:56,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:16:56,706 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-20 06:16:56,712 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:16:56,779 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-10-20 06:16:56,780 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 06:16:56,787 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 06:16:56,788 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-20 06:16:56,788 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-10-20 06:16:56,830 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:16:56,830 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 06:16:56,830 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2020-10-20 06:16:56,831 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428497297] [2020-10-20 06:16:56,831 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-20 06:16:56,832 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:16:56,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-20 06:16:56,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-20 06:16:56,833 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand 7 states. [2020-10-20 06:16:56,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:16:56,978 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2020-10-20 06:16:56,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-20 06:16:56,979 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 12 [2020-10-20 06:16:56,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:16:56,980 INFO L225 Difference]: With dead ends: 24 [2020-10-20 06:16:56,980 INFO L226 Difference]: Without dead ends: 24 [2020-10-20 06:16:56,981 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-20 06:16:56,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2020-10-20 06:16:56,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 23. [2020-10-20 06:16:56,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-10-20 06:16:56,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 23 transitions. [2020-10-20 06:16:56,986 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 23 transitions. Word has length 12 [2020-10-20 06:16:56,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:16:56,986 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 23 transitions. [2020-10-20 06:16:56,986 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-20 06:16:56,986 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 23 transitions. [2020-10-20 06:16:56,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-20 06:16:56,987 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:16:56,988 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:16:57,197 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-10-20 06:16:57,199 INFO L429 AbstractCegarLoop]: === Iteration 4 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2020-10-20 06:16:57,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:16:57,200 INFO L82 PathProgramCache]: Analyzing trace with hash -261628211, now seen corresponding path program 2 times [2020-10-20 06:16:57,200 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:16:57,201 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405202759] [2020-10-20 06:16:57,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:16:57,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:16:57,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:16:57,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:16:57,350 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:16:57,351 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405202759] [2020-10-20 06:16:57,351 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1972791391] [2020-10-20 06:16:57,351 INFO L93 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 [2020-10-20 06:16:57,398 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-20 06:16:57,398 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-20 06:16:57,400 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-20 06:16:57,402 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:16:57,409 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-10-20 06:16:57,409 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 06:16:57,416 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 06:16:57,417 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-20 06:16:57,417 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-10-20 06:16:57,548 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:16:57,548 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-20 06:16:57,548 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 10 [2020-10-20 06:16:57,549 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576430996] [2020-10-20 06:16:57,549 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-20 06:16:57,549 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:16:57,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-20 06:16:57,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2020-10-20 06:16:57,551 INFO L87 Difference]: Start difference. First operand 23 states and 23 transitions. Second operand 7 states. [2020-10-20 06:16:57,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:16:57,612 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2020-10-20 06:16:57,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 06:16:57,613 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2020-10-20 06:16:57,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:16:57,614 INFO L225 Difference]: With dead ends: 23 [2020-10-20 06:16:57,614 INFO L226 Difference]: Without dead ends: 23 [2020-10-20 06:16:57,615 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2020-10-20 06:16:57,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-10-20 06:16:57,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 21. [2020-10-20 06:16:57,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-10-20 06:16:57,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2020-10-20 06:16:57,620 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 15 [2020-10-20 06:16:57,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:16:57,620 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2020-10-20 06:16:57,620 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-20 06:16:57,621 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2020-10-20 06:16:57,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-20 06:16:57,622 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:16:57,622 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:16:57,834 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 06:16:57,835 INFO L429 AbstractCegarLoop]: === Iteration 5 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2020-10-20 06:16:57,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:16:57,835 INFO L82 PathProgramCache]: Analyzing trace with hash -1517605059, now seen corresponding path program 1 times [2020-10-20 06:16:57,835 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:16:57,836 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046960578] [2020-10-20 06:16:57,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:16:57,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:16:57,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:16:57,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:16:57,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-20 06:16:57,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:16:57,945 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-20 06:16:57,945 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046960578] [2020-10-20 06:16:57,946 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:16:57,946 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-20 06:16:57,946 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756545824] [2020-10-20 06:16:57,946 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-20 06:16:57,947 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:16:57,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-20 06:16:57,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-20 06:16:57,947 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand 8 states. [2020-10-20 06:16:58,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:16:58,050 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2020-10-20 06:16:58,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-20 06:16:58,051 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 19 [2020-10-20 06:16:58,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:16:58,052 INFO L225 Difference]: With dead ends: 20 [2020-10-20 06:16:58,052 INFO L226 Difference]: Without dead ends: 20 [2020-10-20 06:16:58,052 INFO L677 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 [2020-10-20 06:16:58,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-10-20 06:16:58,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2020-10-20 06:16:58,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-10-20 06:16:58,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2020-10-20 06:16:58,063 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 19 [2020-10-20 06:16:58,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:16:58,063 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2020-10-20 06:16:58,064 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-20 06:16:58,064 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2020-10-20 06:16:58,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-20 06:16:58,065 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:16:58,065 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:16:58,065 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-20 06:16:58,066 INFO L429 AbstractCegarLoop]: === Iteration 6 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2020-10-20 06:16:58,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:16:58,066 INFO L82 PathProgramCache]: Analyzing trace with hash -1517605058, now seen corresponding path program 1 times [2020-10-20 06:16:58,066 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:16:58,067 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842930097] [2020-10-20 06:16:58,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:16:58,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:16:58,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:16:58,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:16:58,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-20 06:16:58,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:16:58,143 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:16:58,144 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842930097] [2020-10-20 06:16:58,144 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [615750034] [2020-10-20 06:16:58,144 INFO L95 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 [2020-10-20 06:16:58,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:16:58,186 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 06:16:58,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:16:58,204 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:16:58,204 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 06:16:58,204 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 7 [2020-10-20 06:16:58,204 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642052049] [2020-10-20 06:16:58,205 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-20 06:16:58,205 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:16:58,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-20 06:16:58,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-20 06:16:58,206 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand 7 states. [2020-10-20 06:16:58,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:16:58,275 INFO L93 Difference]: Finished difference Result 25 states and 25 transitions. [2020-10-20 06:16:58,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 06:16:58,276 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-10-20 06:16:58,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:16:58,277 INFO L225 Difference]: With dead ends: 25 [2020-10-20 06:16:58,277 INFO L226 Difference]: Without dead ends: 25 [2020-10-20 06:16:58,278 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-20 06:16:58,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2020-10-20 06:16:58,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 23. [2020-10-20 06:16:58,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-10-20 06:16:58,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 23 transitions. [2020-10-20 06:16:58,282 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 23 transitions. Word has length 19 [2020-10-20 06:16:58,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:16:58,282 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 23 transitions. [2020-10-20 06:16:58,283 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-20 06:16:58,283 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 23 transitions. [2020-10-20 06:16:58,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-20 06:16:58,284 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:16:58,284 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:16:58,493 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 06:16:58,494 INFO L429 AbstractCegarLoop]: === Iteration 7 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2020-10-20 06:16:58,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:16:58,494 INFO L82 PathProgramCache]: Analyzing trace with hash 1135899523, now seen corresponding path program 2 times [2020-10-20 06:16:58,494 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:16:58,495 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069502343] [2020-10-20 06:16:58,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:16:58,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:16:58,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:16:58,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:16:58,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-20 06:16:58,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:16:58,577 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:16:58,578 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069502343] [2020-10-20 06:16:58,578 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1646870879] [2020-10-20 06:16:58,578 INFO L93 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 [2020-10-20 06:16:58,618 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-10-20 06:16:58,619 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-20 06:16:58,620 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 16 conjunts are in the unsatisfiable core [2020-10-20 06:16:58,622 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:16:58,628 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-10-20 06:16:58,628 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 06:16:58,633 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 06:16:58,634 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-20 06:16:58,634 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-10-20 06:16:58,712 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-20 06:16:58,712 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-20 06:16:58,713 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 12 [2020-10-20 06:16:58,713 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845733159] [2020-10-20 06:16:58,713 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 06:16:58,713 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:16:58,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 06:16:58,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-10-20 06:16:58,715 INFO L87 Difference]: Start difference. First operand 23 states and 23 transitions. Second operand 6 states. [2020-10-20 06:16:58,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:16:58,769 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2020-10-20 06:16:58,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 06:16:58,769 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2020-10-20 06:16:58,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:16:58,770 INFO L225 Difference]: With dead ends: 22 [2020-10-20 06:16:58,770 INFO L226 Difference]: Without dead ends: 0 [2020-10-20 06:16:58,771 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2020-10-20 06:16:58,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-20 06:16:58,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-20 06:16:58,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-20 06:16:58,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-20 06:16:58,772 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2020-10-20 06:16:58,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:16:58,772 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 06:16:58,772 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 06:16:58,772 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-20 06:16:58,773 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-20 06:16:58,978 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 06:16:58,985 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 06:16:58 BoogieIcfgContainer [2020-10-20 06:16:58,985 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 06:16:58,986 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 06:16:58,986 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 06:16:58,986 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 06:16:58,987 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:16:55" (3/4) ... [2020-10-20 06:16:58,990 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-20 06:16:58,998 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2020-10-20 06:16:58,999 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2020-10-20 06:16:58,999 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure getNumbers [2020-10-20 06:16:59,003 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2020-10-20 06:16:59,004 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-10-20 06:16:59,004 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 06:16:59,064 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 06:16:59,064 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 06:16:59,066 INFO L168 Benchmark]: Toolchain (without parser) took 4187.39 ms. Allocated memory was 35.7 MB in the beginning and 57.1 MB in the end (delta: 21.5 MB). Free memory was 14.4 MB in the beginning and 19.2 MB in the end (delta: -4.8 MB). Peak memory consumption was 16.7 MB. Max. memory is 14.3 GB. [2020-10-20 06:16:59,068 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 34.1 MB. Free memory was 9.0 MB in the beginning and 8.9 MB in the end (delta: 41.9 kB). Peak memory consumption was 41.9 kB. Max. memory is 14.3 GB. [2020-10-20 06:16:59,073 INFO L168 Benchmark]: CACSL2BoogieTranslator took 401.68 ms. Allocated memory was 35.7 MB in the beginning and 44.0 MB in the end (delta: 8.4 MB). Free memory was 13.5 MB in the beginning and 25.3 MB in the end (delta: -11.8 MB). Peak memory consumption was 10.4 MB. Max. memory is 14.3 GB. [2020-10-20 06:16:59,074 INFO L168 Benchmark]: Boogie Preprocessor took 55.44 ms. Allocated memory is still 44.0 MB. Free memory was 25.3 MB in the beginning and 23.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.3 GB. [2020-10-20 06:16:59,080 INFO L168 Benchmark]: RCFGBuilder took 293.04 ms. Allocated memory was 44.0 MB in the beginning and 46.1 MB in the end (delta: 2.1 MB). Free memory was 23.4 MB in the beginning and 22.7 MB in the end (delta: 675.3 kB). Peak memory consumption was 12.6 MB. Max. memory is 14.3 GB. [2020-10-20 06:16:59,081 INFO L168 Benchmark]: TraceAbstraction took 3347.47 ms. Allocated memory was 46.1 MB in the beginning and 57.1 MB in the end (delta: 11.0 MB). Free memory was 22.3 MB in the beginning and 22.0 MB in the end (delta: 307.0 kB). Peak memory consumption was 11.3 MB. Max. memory is 14.3 GB. [2020-10-20 06:16:59,083 INFO L168 Benchmark]: Witness Printer took 78.86 ms. Allocated memory is still 57.1 MB. Free memory was 22.0 MB in the beginning and 19.2 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 14.3 GB. [2020-10-20 06:16:59,087 INFO L339 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 34.1 MB. Free memory was 9.0 MB in the beginning and 8.9 MB in the end (delta: 41.9 kB). Peak memory consumption was 41.9 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 401.68 ms. Allocated memory was 35.7 MB in the beginning and 44.0 MB in the end (delta: 8.4 MB). Free memory was 13.5 MB in the beginning and 25.3 MB in the end (delta: -11.8 MB). Peak memory consumption was 10.4 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 55.44 ms. Allocated memory is still 44.0 MB. Free memory was 25.3 MB in the beginning and 23.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.3 GB. * RCFGBuilder took 293.04 ms. Allocated memory was 44.0 MB in the beginning and 46.1 MB in the end (delta: 2.1 MB). Free memory was 23.4 MB in the beginning and 22.7 MB in the end (delta: 675.3 kB). Peak memory consumption was 12.6 MB. Max. memory is 14.3 GB. * TraceAbstraction took 3347.47 ms. Allocated memory was 46.1 MB in the beginning and 57.1 MB in the end (delta: 11.0 MB). Free memory was 22.3 MB in the beginning and 22.0 MB in the end (delta: 307.0 kB). Peak memory consumption was 11.3 MB. Max. memory is 14.3 GB. * Witness Printer took 78.86 ms. Allocated memory is still 57.1 MB. Free memory was 22.0 MB in the beginning and 19.2 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 14]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 14]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 6]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 6]: 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, 25 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.2s, OverallIterations: 7, TraceHistogramMax: 3, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 80 SDtfs, 101 SDslu, 112 SDs, 0 SdLazy, 266 SolverSat, 33 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 123 GetRequests, 66 SyntacticMatches, 5 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred 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, 16 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 173 NumberOfCodeBlocks, 164 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 162 ConstructedInterpolants, 0 QuantifiedInterpolants, 18860 SizeOfPredicates, 3 NumberOfNonLiveVariables, 270 ConjunctsInSsa, 36 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, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...