./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety-ext3/getNumbers3_true-valid-memsafety.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_1f0bd238-2e1c-4f9a-9c4c-67c0b652a6f3/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_1f0bd238-2e1c-4f9a-9c4c-67c0b652a6f3/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_1f0bd238-2e1c-4f9a-9c4c-67c0b652a6f3/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_1f0bd238-2e1c-4f9a-9c4c-67c0b652a6f3/bin-2019/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-ext3/getNumbers3_true-valid-memsafety.c -s /tmp/vcloud-vcloud-master/worker/working_dir_1f0bd238-2e1c-4f9a-9c4c-67c0b652a6f3/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_1f0bd238-2e1c-4f9a-9c4c-67c0b652a6f3/bin-2019/uautomizer --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 0.1.23-aa41828 [2018-11-22 23:17:16,659 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-22 23:17:16,660 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-22 23:17:16,667 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-22 23:17:16,667 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-22 23:17:16,668 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-22 23:17:16,669 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-22 23:17:16,670 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-22 23:17:16,671 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-22 23:17:16,672 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-22 23:17:16,672 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-22 23:17:16,673 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-22 23:17:16,673 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-22 23:17:16,674 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-22 23:17:16,675 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-22 23:17:16,675 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-22 23:17:16,676 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-22 23:17:16,677 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-22 23:17:16,679 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-22 23:17:16,680 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-22 23:17:16,680 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-22 23:17:16,681 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-22 23:17:16,683 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-22 23:17:16,683 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-22 23:17:16,683 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-22 23:17:16,684 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-22 23:17:16,685 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-22 23:17:16,685 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-22 23:17:16,686 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-22 23:17:16,687 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-22 23:17:16,687 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-22 23:17:16,687 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-22 23:17:16,687 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-22 23:17:16,687 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-22 23:17:16,688 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-22 23:17:16,689 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-22 23:17:16,689 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_1f0bd238-2e1c-4f9a-9c4c-67c0b652a6f3/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2018-11-22 23:17:16,699 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-22 23:17:16,700 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-22 23:17:16,700 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-22 23:17:16,700 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-22 23:17:16,701 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-22 23:17:16,701 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-22 23:17:16,701 INFO L133 SettingsManager]: * Use SBE=true [2018-11-22 23:17:16,701 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-22 23:17:16,701 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-22 23:17:16,702 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-22 23:17:16,702 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-22 23:17:16,702 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-22 23:17:16,702 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-22 23:17:16,702 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-11-22 23:17:16,702 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-11-22 23:17:16,702 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-11-22 23:17:16,702 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-22 23:17:16,703 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-22 23:17:16,703 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-22 23:17:16,703 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-22 23:17:16,703 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-22 23:17:16,703 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-22 23:17:16,703 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-22 23:17:16,703 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-22 23:17:16,704 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-22 23:17:16,704 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-22 23:17:16,704 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-22 23:17:16,704 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-22 23:17:16,704 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_1f0bd238-2e1c-4f9a-9c4c-67c0b652a6f3/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G 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 [2018-11-22 23:17:16,728 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-22 23:17:16,737 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-22 23:17:16,740 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-22 23:17:16,741 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-22 23:17:16,741 INFO L276 PluginConnector]: CDTParser initialized [2018-11-22 23:17:16,741 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_1f0bd238-2e1c-4f9a-9c4c-67c0b652a6f3/bin-2019/uautomizer/../../sv-benchmarks/c/memsafety-ext3/getNumbers3_true-valid-memsafety.c [2018-11-22 23:17:16,789 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1f0bd238-2e1c-4f9a-9c4c-67c0b652a6f3/bin-2019/uautomizer/data/64d02b4cf/8f0711dae6b8485583fe7cea79dd5751/FLAG7d7c76f06 [2018-11-22 23:17:17,118 INFO L307 CDTParser]: Found 1 translation units. [2018-11-22 23:17:17,119 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_1f0bd238-2e1c-4f9a-9c4c-67c0b652a6f3/sv-benchmarks/c/memsafety-ext3/getNumbers3_true-valid-memsafety.c [2018-11-22 23:17:17,122 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1f0bd238-2e1c-4f9a-9c4c-67c0b652a6f3/bin-2019/uautomizer/data/64d02b4cf/8f0711dae6b8485583fe7cea79dd5751/FLAG7d7c76f06 [2018-11-22 23:17:17,553 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_1f0bd238-2e1c-4f9a-9c4c-67c0b652a6f3/bin-2019/uautomizer/data/64d02b4cf/8f0711dae6b8485583fe7cea79dd5751 [2018-11-22 23:17:17,556 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-22 23:17:17,557 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-22 23:17:17,557 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-22 23:17:17,557 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-22 23:17:17,560 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-22 23:17:17,560 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:17:17" (1/1) ... [2018-11-22 23:17:17,562 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fb74b4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:17:17, skipping insertion in model container [2018-11-22 23:17:17,562 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:17:17" (1/1) ... [2018-11-22 23:17:17,570 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-22 23:17:17,584 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-22 23:17:17,720 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-22 23:17:17,730 INFO L191 MainTranslator]: Completed pre-run [2018-11-22 23:17:17,742 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-22 23:17:17,755 INFO L195 MainTranslator]: Completed translation [2018-11-22 23:17:17,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:17:17 WrapperNode [2018-11-22 23:17:17,756 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-22 23:17:17,756 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-22 23:17:17,756 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-22 23:17:17,756 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-22 23:17:17,767 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:17:17" (1/1) ... [2018-11-22 23:17:17,767 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:17:17" (1/1) ... [2018-11-22 23:17:17,774 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:17:17" (1/1) ... [2018-11-22 23:17:17,774 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:17:17" (1/1) ... [2018-11-22 23:17:17,779 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:17:17" (1/1) ... [2018-11-22 23:17:17,783 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:17:17" (1/1) ... [2018-11-22 23:17:17,784 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:17:17" (1/1) ... [2018-11-22 23:17:17,785 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-22 23:17:17,786 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-22 23:17:17,786 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-22 23:17:17,786 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-22 23:17:17,787 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:17:17" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1f0bd238-2e1c-4f9a-9c4c-67c0b652a6f3/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-22 23:17:17,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-22 23:17:17,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-22 23:17:17,870 INFO L138 BoogieDeclarations]: Found implementation of procedure getNumbers [2018-11-22 23:17:17,870 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-22 23:17:17,870 INFO L130 BoogieDeclarations]: Found specification of procedure getNumbers [2018-11-22 23:17:17,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-22 23:17:17,870 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-22 23:17:17,871 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-22 23:17:17,871 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-22 23:17:17,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-11-22 23:17:17,871 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-22 23:17:17,871 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-22 23:17:17,871 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-22 23:17:17,997 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-22 23:17:17,997 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-11-22 23:17:17,998 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:17:17 BoogieIcfgContainer [2018-11-22 23:17:17,998 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-22 23:17:17,998 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-22 23:17:17,998 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-22 23:17:18,000 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-22 23:17:18,000 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 11:17:17" (1/3) ... [2018-11-22 23:17:18,001 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5361978e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 11:17:18, skipping insertion in model container [2018-11-22 23:17:18,001 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:17:17" (2/3) ... [2018-11-22 23:17:18,002 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5361978e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 11:17:18, skipping insertion in model container [2018-11-22 23:17:18,002 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:17:17" (3/3) ... [2018-11-22 23:17:18,003 INFO L112 eAbstractionObserver]: Analyzing ICFG getNumbers3_true-valid-memsafety.c [2018-11-22 23:17:18,011 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-22 23:17:18,016 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2018-11-22 23:17:18,025 INFO L257 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2018-11-22 23:17:18,041 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-22 23:17:18,041 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-22 23:17:18,041 INFO L383 AbstractCegarLoop]: Hoare is false [2018-11-22 23:17:18,041 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-22 23:17:18,042 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-22 23:17:18,042 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-22 23:17:18,042 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-22 23:17:18,042 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-22 23:17:18,042 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-22 23:17:18,052 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2018-11-22 23:17:18,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-22 23:17:18,058 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 23:17:18,059 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 23:17:18,061 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-11-22 23:17:18,067 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:17:18,068 INFO L82 PathProgramCache]: Analyzing trace with hash -335730452, now seen corresponding path program 1 times [2018-11-22 23:17:18,070 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 23:17:18,070 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 23:17:18,111 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:17:18,111 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:17:18,111 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:17:18,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:17:18,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:17:18,203 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 23:17:18,204 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-22 23:17:18,206 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-22 23:17:18,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-22 23:17:18,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-22 23:17:18,218 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 3 states. [2018-11-22 23:17:18,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 23:17:18,248 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2018-11-22 23:17:18,249 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-22 23:17:18,250 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-11-22 23:17:18,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 23:17:18,257 INFO L225 Difference]: With dead ends: 23 [2018-11-22 23:17:18,257 INFO L226 Difference]: Without dead ends: 18 [2018-11-22 23:17:18,258 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-22 23:17:18,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-11-22 23:17:18,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-11-22 23:17:18,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-11-22 23:17:18,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2018-11-22 23:17:18,284 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 9 [2018-11-22 23:17:18,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 23:17:18,284 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2018-11-22 23:17:18,285 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-22 23:17:18,285 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2018-11-22 23:17:18,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-22 23:17:18,285 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 23:17:18,286 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 23:17:18,286 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-11-22 23:17:18,286 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:17:18,286 INFO L82 PathProgramCache]: Analyzing trace with hash -335730451, now seen corresponding path program 1 times [2018-11-22 23:17:18,287 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 23:17:18,287 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 23:17:18,288 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:17:18,288 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:17:18,288 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:17:18,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:17:18,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:17:18,437 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 23:17:18,437 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-22 23:17:18,438 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-22 23:17:18,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-22 23:17:18,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-22 23:17:18,439 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 5 states. [2018-11-22 23:17:18,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 23:17:18,498 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2018-11-22 23:17:18,498 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-22 23:17:18,498 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2018-11-22 23:17:18,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 23:17:18,499 INFO L225 Difference]: With dead ends: 21 [2018-11-22 23:17:18,499 INFO L226 Difference]: Without dead ends: 21 [2018-11-22 23:17:18,500 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-22 23:17:18,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2018-11-22 23:17:18,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2018-11-22 23:17:18,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-11-22 23:17:18,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2018-11-22 23:17:18,503 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 9 [2018-11-22 23:17:18,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 23:17:18,503 INFO L480 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2018-11-22 23:17:18,504 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-22 23:17:18,504 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2018-11-22 23:17:18,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-22 23:17:18,504 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 23:17:18,504 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 23:17:18,504 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-11-22 23:17:18,505 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:17:18,505 INFO L82 PathProgramCache]: Analyzing trace with hash 1232932722, now seen corresponding path program 1 times [2018-11-22 23:17:18,505 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 23:17:18,505 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 23:17:18,506 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:17:18,506 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:17:18,506 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:17:18,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:17:18,657 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:17:18,657 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-22 23:17:18,657 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1f0bd238-2e1c-4f9a-9c4c-67c0b652a6f3/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-22 23:17:18,668 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:17:18,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:17:18,695 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:17:18,731 INFO L478 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 [2018-11-22 23:17:18,733 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-22 23:17:18,737 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:17:18,737 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-22 23:17:18,790 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:17:18,807 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-22 23:17:18,807 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 8 [2018-11-22 23:17:18,808 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-22 23:17:18,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-22 23:17:18,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-22 23:17:18,808 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand 9 states. [2018-11-22 23:17:18,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 23:17:18,885 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2018-11-22 23:17:18,885 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-22 23:17:18,885 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 12 [2018-11-22 23:17:18,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 23:17:18,886 INFO L225 Difference]: With dead ends: 24 [2018-11-22 23:17:18,886 INFO L226 Difference]: Without dead ends: 24 [2018-11-22 23:17:18,887 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2018-11-22 23:17:18,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2018-11-22 23:17:18,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2018-11-22 23:17:18,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-11-22 23:17:18,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2018-11-22 23:17:18,889 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 12 [2018-11-22 23:17:18,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 23:17:18,889 INFO L480 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2018-11-22 23:17:18,889 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-22 23:17:18,889 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2018-11-22 23:17:18,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-22 23:17:18,891 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 23:17:18,891 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 23:17:18,891 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-11-22 23:17:18,891 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:17:18,891 INFO L82 PathProgramCache]: Analyzing trace with hash 1135899522, now seen corresponding path program 1 times [2018-11-22 23:17:18,891 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 23:17:18,892 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 23:17:18,892 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:17:18,892 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:17:18,892 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:17:18,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:17:18,950 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-11-22 23:17:18,950 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 23:17:18,950 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-22 23:17:18,950 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-22 23:17:18,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-22 23:17:18,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-22 23:17:18,951 INFO L87 Difference]: Start difference. First operand 24 states and 24 transitions. Second operand 6 states. [2018-11-22 23:17:18,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 23:17:18,992 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2018-11-22 23:17:18,992 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-22 23:17:18,992 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2018-11-22 23:17:18,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 23:17:18,993 INFO L225 Difference]: With dead ends: 23 [2018-11-22 23:17:18,993 INFO L226 Difference]: Without dead ends: 23 [2018-11-22 23:17:18,993 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-11-22 23:17:18,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-11-22 23:17:18,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2018-11-22 23:17:18,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-11-22 23:17:18,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 23 transitions. [2018-11-22 23:17:18,997 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 23 transitions. Word has length 22 [2018-11-22 23:17:18,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 23:17:18,997 INFO L480 AbstractCegarLoop]: Abstraction has 23 states and 23 transitions. [2018-11-22 23:17:18,998 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-22 23:17:18,998 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 23 transitions. [2018-11-22 23:17:18,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-22 23:17:18,998 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 23:17:18,998 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 23:17:18,999 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-11-22 23:17:18,999 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:17:18,999 INFO L82 PathProgramCache]: Analyzing trace with hash 1135899523, now seen corresponding path program 1 times [2018-11-22 23:17:18,999 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 23:17:18,999 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 23:17:19,000 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:17:19,000 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:17:19,000 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:17:19,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:17:19,053 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:17:19,053 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-22 23:17:19,054 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1f0bd238-2e1c-4f9a-9c4c-67c0b652a6f3/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-22 23:17:19,066 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:17:19,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:17:19,086 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:17:19,102 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:17:19,120 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-22 23:17:19,120 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2018-11-22 23:17:19,120 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-22 23:17:19,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-22 23:17:19,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2018-11-22 23:17:19,121 INFO L87 Difference]: Start difference. First operand 23 states and 23 transitions. Second operand 7 states. [2018-11-22 23:17:19,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 23:17:19,147 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2018-11-22 23:17:19,148 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-22 23:17:19,148 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 22 [2018-11-22 23:17:19,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 23:17:19,148 INFO L225 Difference]: With dead ends: 28 [2018-11-22 23:17:19,149 INFO L226 Difference]: Without dead ends: 28 [2018-11-22 23:17:19,149 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2018-11-22 23:17:19,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2018-11-22 23:17:19,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 26. [2018-11-22 23:17:19,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-11-22 23:17:19,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 26 transitions. [2018-11-22 23:17:19,153 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 26 transitions. Word has length 22 [2018-11-22 23:17:19,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 23:17:19,153 INFO L480 AbstractCegarLoop]: Abstraction has 26 states and 26 transitions. [2018-11-22 23:17:19,153 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-22 23:17:19,153 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 26 transitions. [2018-11-22 23:17:19,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-22 23:17:19,154 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 23:17:19,154 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 23:17:19,154 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr0REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION]=== [2018-11-22 23:17:19,155 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:17:19,155 INFO L82 PathProgramCache]: Analyzing trace with hash -1477178082, now seen corresponding path program 2 times [2018-11-22 23:17:19,155 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 23:17:19,155 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 23:17:19,156 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:17:19,156 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:17:19,156 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:17:19,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:17:19,211 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:17:19,211 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-22 23:17:19,211 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1f0bd238-2e1c-4f9a-9c4c-67c0b652a6f3/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-22 23:17:19,218 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-22 23:17:19,234 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2018-11-22 23:17:19,234 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-22 23:17:19,237 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:17:19,250 INFO L478 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 [2018-11-22 23:17:19,251 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-22 23:17:19,258 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:17:19,258 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-22 23:17:19,311 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2018-11-22 23:17:19,338 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-22 23:17:19,338 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 11 [2018-11-22 23:17:19,338 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-22 23:17:19,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-22 23:17:19,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2018-11-22 23:17:19,339 INFO L87 Difference]: Start difference. First operand 26 states and 26 transitions. Second operand 11 states. [2018-11-22 23:17:19,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 23:17:19,480 INFO L93 Difference]: Finished difference Result 30 states and 30 transitions. [2018-11-22 23:17:19,480 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-22 23:17:19,480 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2018-11-22 23:17:19,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 23:17:19,480 INFO L225 Difference]: With dead ends: 30 [2018-11-22 23:17:19,480 INFO L226 Difference]: Without dead ends: 0 [2018-11-22 23:17:19,481 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2018-11-22 23:17:19,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-22 23:17:19,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-22 23:17:19,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-22 23:17:19,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-22 23:17:19,482 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2018-11-22 23:17:19,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 23:17:19,482 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-22 23:17:19,482 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-22 23:17:19,482 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-22 23:17:19,482 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-22 23:17:19,486 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 11:17:19 BoogieIcfgContainer [2018-11-22 23:17:19,486 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-22 23:17:19,486 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-22 23:17:19,486 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-22 23:17:19,487 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-22 23:17:19,487 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:17:17" (3/4) ... [2018-11-22 23:17:19,490 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-22 23:17:19,495 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-22 23:17:19,495 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-22 23:17:19,495 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure getNumbers [2018-11-22 23:17:19,498 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2018-11-22 23:17:19,499 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-22 23:17:19,499 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-22 23:17:19,499 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-22 23:17:19,527 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_1f0bd238-2e1c-4f9a-9c4c-67c0b652a6f3/bin-2019/uautomizer/witness.graphml [2018-11-22 23:17:19,527 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-22 23:17:19,528 INFO L168 Benchmark]: Toolchain (without parser) took 1971.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 952.7 MB in the beginning and 948.4 MB in the end (delta: 4.2 MB). Peak memory consumption was 152.6 MB. Max. memory is 11.5 GB. [2018-11-22 23:17:19,528 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-22 23:17:19,529 INFO L168 Benchmark]: CACSL2BoogieTranslator took 198.91 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 941.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-22 23:17:19,529 INFO L168 Benchmark]: Boogie Preprocessor took 29.45 ms. Allocated memory is still 1.0 GB. Free memory was 941.9 MB in the beginning and 939.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-22 23:17:19,529 INFO L168 Benchmark]: RCFGBuilder took 211.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -187.3 MB). Peak memory consumption was 14.2 MB. Max. memory is 11.5 GB. [2018-11-22 23:17:19,530 INFO L168 Benchmark]: TraceAbstraction took 1487.86 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 951.7 MB in the end (delta: 174.8 MB). Peak memory consumption was 174.8 MB. Max. memory is 11.5 GB. [2018-11-22 23:17:19,530 INFO L168 Benchmark]: Witness Printer took 40.61 ms. Allocated memory is still 1.2 GB. Free memory was 951.7 MB in the beginning and 948.4 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. [2018-11-22 23:17:19,532 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 198.91 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 941.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 29.45 ms. Allocated memory is still 1.0 GB. Free memory was 941.9 MB in the beginning and 939.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 211.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -187.3 MB). Peak memory consumption was 14.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1487.86 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 951.7 MB in the end (delta: 174.8 MB). Peak memory consumption was 174.8 MB. Max. memory is 11.5 GB. * Witness Printer took 40.61 ms. Allocated memory is still 1.2 GB. Free memory was 951.7 MB in the beginning and 948.4 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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: 12]: all allocated memory was freed For all program executions holds that all allocated memory was freed 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. SAFE Result, 1.4s OverallTime, 6 OverallIterations, 4 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 76 SDtfs, 92 SDslu, 121 SDs, 0 SdLazy, 186 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 96 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 3 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 158 NumberOfCodeBlocks, 146 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 149 ConstructedInterpolants, 0 QuantifiedInterpolants, 13393 SizeOfPredicates, 3 NumberOfNonLiveVariables, 256 ConjunctsInSsa, 29 ConjunctsInUnsatCore, 9 InterpolantComputations, 4 PerfectInterpolantSequences, 35/84 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...