./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety-ext3/getNumbers2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_654b5de1-e805-4d7c-8502-53726d93f54e/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_654b5de1-e805-4d7c-8502-53726d93f54e/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_654b5de1-e805-4d7c-8502-53726d93f54e/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_654b5de1-e805-4d7c-8502-53726d93f54e/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-ext3/getNumbers2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_654b5de1-e805-4d7c-8502-53726d93f54e/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_654b5de1-e805-4d7c-8502-53726d93f54e/bin/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 e872a0dffbf376eb2d8b1e3516401a8dafe115a6 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref) --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 13:24:32,690 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 13:24:32,691 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 13:24:32,698 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 13:24:32,699 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 13:24:32,699 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 13:24:32,700 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 13:24:32,702 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 13:24:32,703 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 13:24:32,703 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 13:24:32,704 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 13:24:32,705 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 13:24:32,705 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 13:24:32,706 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 13:24:32,706 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 13:24:32,707 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 13:24:32,707 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 13:24:32,708 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 13:24:32,709 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 13:24:32,711 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 13:24:32,712 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 13:24:32,713 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 13:24:32,713 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 13:24:32,714 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 13:24:32,715 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 13:24:32,715 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 13:24:32,716 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 13:24:32,716 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 13:24:32,716 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 13:24:32,717 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 13:24:32,717 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 13:24:32,717 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 13:24:32,718 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 13:24:32,718 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 13:24:32,719 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 13:24:32,719 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 13:24:32,719 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 13:24:32,720 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 13:24:32,720 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 13:24:32,720 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 13:24:32,721 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 13:24:32,721 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_654b5de1-e805-4d7c-8502-53726d93f54e/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-12-07 13:24:32,730 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 13:24:32,730 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 13:24:32,731 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 13:24:32,731 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 13:24:32,731 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 13:24:32,731 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 13:24:32,731 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 13:24:32,731 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 13:24:32,731 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 13:24:32,731 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 13:24:32,732 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 13:24:32,732 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-12-07 13:24:32,732 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-12-07 13:24:32,732 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-12-07 13:24:32,732 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 13:24:32,732 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 13:24:32,732 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 13:24:32,732 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 13:24:32,732 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 13:24:32,733 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 13:24:32,733 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 13:24:32,733 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 13:24:32,733 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 13:24:32,733 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 13:24:32,733 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 13:24:32,733 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 13:24:32,733 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 13:24:32,733 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 13:24:32,734 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_654b5de1-e805-4d7c-8502-53726d93f54e/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G 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 -> e872a0dffbf376eb2d8b1e3516401a8dafe115a6 [2019-12-07 13:24:32,833 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 13:24:32,843 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 13:24:32,846 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 13:24:32,847 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 13:24:32,847 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 13:24:32,848 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_654b5de1-e805-4d7c-8502-53726d93f54e/bin/uautomizer/../../sv-benchmarks/c/memsafety-ext3/getNumbers2.c [2019-12-07 13:24:32,895 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_654b5de1-e805-4d7c-8502-53726d93f54e/bin/uautomizer/data/242c04e06/637d2d2428b04238b878d3cf65687e41/FLAG41c19358e [2019-12-07 13:24:33,253 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 13:24:33,253 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_654b5de1-e805-4d7c-8502-53726d93f54e/sv-benchmarks/c/memsafety-ext3/getNumbers2.c [2019-12-07 13:24:33,257 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_654b5de1-e805-4d7c-8502-53726d93f54e/bin/uautomizer/data/242c04e06/637d2d2428b04238b878d3cf65687e41/FLAG41c19358e [2019-12-07 13:24:33,663 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_654b5de1-e805-4d7c-8502-53726d93f54e/bin/uautomizer/data/242c04e06/637d2d2428b04238b878d3cf65687e41 [2019-12-07 13:24:33,665 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 13:24:33,667 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-07 13:24:33,668 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 13:24:33,668 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 13:24:33,671 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 13:24:33,671 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:24:33" (1/1) ... [2019-12-07 13:24:33,674 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65246281 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:24:33, skipping insertion in model container [2019-12-07 13:24:33,674 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:24:33" (1/1) ... [2019-12-07 13:24:33,681 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 13:24:33,692 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 13:24:33,793 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 13:24:33,802 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 13:24:33,845 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 13:24:33,855 INFO L208 MainTranslator]: Completed translation [2019-12-07 13:24:33,856 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:24:33 WrapperNode [2019-12-07 13:24:33,856 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 13:24:33,856 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 13:24:33,856 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 13:24:33,856 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 13:24:33,865 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:24:33" (1/1) ... [2019-12-07 13:24:33,865 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:24:33" (1/1) ... [2019-12-07 13:24:33,870 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:24:33" (1/1) ... [2019-12-07 13:24:33,870 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:24:33" (1/1) ... [2019-12-07 13:24:33,875 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:24:33" (1/1) ... [2019-12-07 13:24:33,878 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:24:33" (1/1) ... [2019-12-07 13:24:33,879 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:24:33" (1/1) ... [2019-12-07 13:24:33,880 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 13:24:33,880 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 13:24:33,880 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 13:24:33,880 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 13:24:33,881 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:24:33" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_654b5de1-e805-4d7c-8502-53726d93f54e/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 13:24:33,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-12-07 13:24:33,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 13:24:33,921 INFO L138 BoogieDeclarations]: Found implementation of procedure getNumbers [2019-12-07 13:24:33,921 INFO L138 BoogieDeclarations]: Found implementation of procedure getNumbers2 [2019-12-07 13:24:33,921 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-12-07 13:24:33,922 INFO L130 BoogieDeclarations]: Found specification of procedure getNumbers [2019-12-07 13:24:33,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 13:24:33,922 INFO L130 BoogieDeclarations]: Found specification of procedure getNumbers2 [2019-12-07 13:24:33,922 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 13:24:33,922 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 13:24:33,922 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 13:24:33,922 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-12-07 13:24:33,922 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-12-07 13:24:33,922 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 13:24:34,082 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 13:24:34,083 INFO L287 CfgBuilder]: Removed 2 assume(true) statements. [2019-12-07 13:24:34,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:24:34 BoogieIcfgContainer [2019-12-07 13:24:34,084 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 13:24:34,085 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 13:24:34,085 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 13:24:34,087 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 13:24:34,087 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 01:24:33" (1/3) ... [2019-12-07 13:24:34,088 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d9458de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:24:34, skipping insertion in model container [2019-12-07 13:24:34,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:24:33" (2/3) ... [2019-12-07 13:24:34,089 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d9458de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:24:34, skipping insertion in model container [2019-12-07 13:24:34,089 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:24:34" (3/3) ... [2019-12-07 13:24:34,090 INFO L109 eAbstractionObserver]: Analyzing ICFG getNumbers2.c [2019-12-07 13:24:34,097 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 13:24:34,101 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 9 error locations. [2019-12-07 13:24:34,108 INFO L249 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2019-12-07 13:24:34,121 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 13:24:34,121 INFO L374 AbstractCegarLoop]: Hoare is false [2019-12-07 13:24:34,121 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 13:24:34,121 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 13:24:34,121 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 13:24:34,121 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 13:24:34,122 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 13:24:34,122 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 13:24:34,132 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2019-12-07 13:24:34,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-07 13:24:34,138 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:24:34,138 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:24:34,139 INFO L410 AbstractCegarLoop]: === Iteration 1 === [getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2019-12-07 13:24:34,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:24:34,143 INFO L82 PathProgramCache]: Analyzing trace with hash -262167437, now seen corresponding path program 1 times [2019-12-07 13:24:34,148 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:24:34,148 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995089895] [2019-12-07 13:24:34,149 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:24:34,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:24:34,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:24:34,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:24:34,334 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995089895] [2019-12-07 13:24:34,335 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:24:34,335 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 13:24:34,336 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426718109] [2019-12-07 13:24:34,339 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 13:24:34,339 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 13:24:34,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 13:24:34,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-07 13:24:34,349 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 5 states. [2019-12-07 13:24:34,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:24:34,484 INFO L93 Difference]: Finished difference Result 43 states and 44 transitions. [2019-12-07 13:24:34,484 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 13:24:34,485 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2019-12-07 13:24:34,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:24:34,491 INFO L225 Difference]: With dead ends: 43 [2019-12-07 13:24:34,491 INFO L226 Difference]: Without dead ends: 40 [2019-12-07 13:24:34,492 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-07 13:24:34,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2019-12-07 13:24:34,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 38. [2019-12-07 13:24:34,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2019-12-07 13:24:34,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 40 transitions. [2019-12-07 13:24:34,517 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 40 transitions. Word has length 10 [2019-12-07 13:24:34,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:24:34,517 INFO L462 AbstractCegarLoop]: Abstraction has 38 states and 40 transitions. [2019-12-07 13:24:34,517 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 13:24:34,517 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 40 transitions. [2019-12-07 13:24:34,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-07 13:24:34,518 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:24:34,518 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:24:34,518 INFO L410 AbstractCegarLoop]: === Iteration 2 === [getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2019-12-07 13:24:34,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:24:34,518 INFO L82 PathProgramCache]: Analyzing trace with hash -262167438, now seen corresponding path program 1 times [2019-12-07 13:24:34,518 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:24:34,518 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25352784] [2019-12-07 13:24:34,518 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:24:34,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:24:34,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:24:34,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:24:34,562 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25352784] [2019-12-07 13:24:34,562 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:24:34,563 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 13:24:34,563 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042835088] [2019-12-07 13:24:34,564 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 13:24:34,564 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 13:24:34,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 13:24:34,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 13:24:34,564 INFO L87 Difference]: Start difference. First operand 38 states and 40 transitions. Second operand 4 states. [2019-12-07 13:24:34,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:24:34,630 INFO L93 Difference]: Finished difference Result 37 states and 38 transitions. [2019-12-07 13:24:34,630 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 13:24:34,630 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-12-07 13:24:34,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:24:34,631 INFO L225 Difference]: With dead ends: 37 [2019-12-07 13:24:34,631 INFO L226 Difference]: Without dead ends: 37 [2019-12-07 13:24:34,632 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-07 13:24:34,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2019-12-07 13:24:34,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2019-12-07 13:24:34,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2019-12-07 13:24:34,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 38 transitions. [2019-12-07 13:24:34,635 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 38 transitions. Word has length 10 [2019-12-07 13:24:34,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:24:34,636 INFO L462 AbstractCegarLoop]: Abstraction has 37 states and 38 transitions. [2019-12-07 13:24:34,636 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 13:24:34,636 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 38 transitions. [2019-12-07 13:24:34,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-07 13:24:34,636 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:24:34,636 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:24:34,636 INFO L410 AbstractCegarLoop]: === Iteration 3 === [getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2019-12-07 13:24:34,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:24:34,637 INFO L82 PathProgramCache]: Analyzing trace with hash -1979581628, now seen corresponding path program 1 times [2019-12-07 13:24:34,637 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:24:34,637 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008687582] [2019-12-07 13:24:34,637 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:24:34,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:24:34,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:24:34,715 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:24:34,715 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008687582] [2019-12-07 13:24:34,715 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:24:34,715 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 13:24:34,716 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578873773] [2019-12-07 13:24:34,716 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-07 13:24:34,716 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 13:24:34,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-07 13:24:34,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-12-07 13:24:34,716 INFO L87 Difference]: Start difference. First operand 37 states and 38 transitions. Second operand 7 states. [2019-12-07 13:24:34,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:24:34,807 INFO L93 Difference]: Finished difference Result 37 states and 38 transitions. [2019-12-07 13:24:34,807 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-07 13:24:34,808 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2019-12-07 13:24:34,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:24:34,808 INFO L225 Difference]: With dead ends: 37 [2019-12-07 13:24:34,808 INFO L226 Difference]: Without dead ends: 37 [2019-12-07 13:24:34,809 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-12-07 13:24:34,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2019-12-07 13:24:34,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 35. [2019-12-07 13:24:34,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-12-07 13:24:34,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 36 transitions. [2019-12-07 13:24:34,812 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 36 transitions. Word has length 13 [2019-12-07 13:24:34,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:24:34,812 INFO L462 AbstractCegarLoop]: Abstraction has 35 states and 36 transitions. [2019-12-07 13:24:34,812 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-07 13:24:34,812 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 36 transitions. [2019-12-07 13:24:34,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-07 13:24:34,813 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:24:34,813 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:24:34,813 INFO L410 AbstractCegarLoop]: === Iteration 4 === [getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2019-12-07 13:24:34,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:24:34,813 INFO L82 PathProgramCache]: Analyzing trace with hash -157413641, now seen corresponding path program 1 times [2019-12-07 13:24:34,813 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:24:34,813 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338495719] [2019-12-07 13:24:34,814 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:24:34,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:24:34,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:24:34,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:24:34,897 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:24:34,898 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338495719] [2019-12-07 13:24:34,898 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [938627265] [2019-12-07 13:24:34,898 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_654b5de1-e805-4d7c-8502-53726d93f54e/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 13:24:34,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:24:34,929 INFO L264 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 13:24:34,932 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:24:34,947 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:24:34,948 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 13:24:34,948 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4] total 9 [2019-12-07 13:24:34,948 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125727527] [2019-12-07 13:24:34,948 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-12-07 13:24:34,948 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 13:24:34,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-12-07 13:24:34,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-12-07 13:24:34,949 INFO L87 Difference]: Start difference. First operand 35 states and 36 transitions. Second operand 9 states. [2019-12-07 13:24:35,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:24:35,099 INFO L93 Difference]: Finished difference Result 44 states and 46 transitions. [2019-12-07 13:24:35,100 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-07 13:24:35,100 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 18 [2019-12-07 13:24:35,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:24:35,100 INFO L225 Difference]: With dead ends: 44 [2019-12-07 13:24:35,101 INFO L226 Difference]: Without dead ends: 44 [2019-12-07 13:24:35,101 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2019-12-07 13:24:35,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2019-12-07 13:24:35,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 40. [2019-12-07 13:24:35,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2019-12-07 13:24:35,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 43 transitions. [2019-12-07 13:24:35,105 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 43 transitions. Word has length 18 [2019-12-07 13:24:35,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:24:35,105 INFO L462 AbstractCegarLoop]: Abstraction has 40 states and 43 transitions. [2019-12-07 13:24:35,105 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-12-07 13:24:35,105 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 43 transitions. [2019-12-07 13:24:35,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-12-07 13:24:35,106 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:24:35,106 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:24:35,307 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 13:24:35,308 INFO L410 AbstractCegarLoop]: === Iteration 5 === [getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2019-12-07 13:24:35,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:24:35,309 INFO L82 PathProgramCache]: Analyzing trace with hash -680983352, now seen corresponding path program 2 times [2019-12-07 13:24:35,309 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:24:35,310 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390111866] [2019-12-07 13:24:35,310 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:24:35,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:24:35,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:24:35,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:24:35,552 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-07 13:24:35,552 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390111866] [2019-12-07 13:24:35,552 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:24:35,553 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-07 13:24:35,553 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169465060] [2019-12-07 13:24:35,554 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 13:24:35,554 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 13:24:35,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 13:24:35,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-12-07 13:24:35,555 INFO L87 Difference]: Start difference. First operand 40 states and 43 transitions. Second operand 8 states. [2019-12-07 13:24:35,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:24:35,668 INFO L93 Difference]: Finished difference Result 39 states and 42 transitions. [2019-12-07 13:24:35,669 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-07 13:24:35,669 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 21 [2019-12-07 13:24:35,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:24:35,670 INFO L225 Difference]: With dead ends: 39 [2019-12-07 13:24:35,670 INFO L226 Difference]: Without dead ends: 39 [2019-12-07 13:24:35,670 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2019-12-07 13:24:35,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-12-07 13:24:35,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 37. [2019-12-07 13:24:35,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2019-12-07 13:24:35,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 38 transitions. [2019-12-07 13:24:35,673 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 38 transitions. Word has length 21 [2019-12-07 13:24:35,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:24:35,673 INFO L462 AbstractCegarLoop]: Abstraction has 37 states and 38 transitions. [2019-12-07 13:24:35,673 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 13:24:35,674 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 38 transitions. [2019-12-07 13:24:35,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-12-07 13:24:35,674 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:24:35,674 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:24:35,674 INFO L410 AbstractCegarLoop]: === Iteration 6 === [getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2019-12-07 13:24:35,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:24:35,675 INFO L82 PathProgramCache]: Analyzing trace with hash -680983351, now seen corresponding path program 1 times [2019-12-07 13:24:35,675 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:24:35,675 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903692293] [2019-12-07 13:24:35,675 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:24:35,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:24:35,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:24:35,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:24:35,767 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:24:35,767 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903692293] [2019-12-07 13:24:35,767 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [640725184] [2019-12-07 13:24:35,767 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_654b5de1-e805-4d7c-8502-53726d93f54e/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 13:24:35,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:24:35,805 INFO L264 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 13:24:35,807 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:24:35,811 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:24:35,811 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 13:24:35,811 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5] total 10 [2019-12-07 13:24:35,811 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297350956] [2019-12-07 13:24:35,812 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-12-07 13:24:35,812 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 13:24:35,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-12-07 13:24:35,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-12-07 13:24:35,812 INFO L87 Difference]: Start difference. First operand 37 states and 38 transitions. Second operand 10 states. [2019-12-07 13:24:35,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:24:35,954 INFO L93 Difference]: Finished difference Result 42 states and 43 transitions. [2019-12-07 13:24:35,955 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-07 13:24:35,955 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 21 [2019-12-07 13:24:35,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:24:35,955 INFO L225 Difference]: With dead ends: 42 [2019-12-07 13:24:35,955 INFO L226 Difference]: Without dead ends: 42 [2019-12-07 13:24:35,956 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2019-12-07 13:24:35,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2019-12-07 13:24:35,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 40. [2019-12-07 13:24:35,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2019-12-07 13:24:35,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 41 transitions. [2019-12-07 13:24:35,958 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 41 transitions. Word has length 21 [2019-12-07 13:24:35,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:24:35,959 INFO L462 AbstractCegarLoop]: Abstraction has 40 states and 41 transitions. [2019-12-07 13:24:35,959 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-12-07 13:24:35,959 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 41 transitions. [2019-12-07 13:24:35,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-12-07 13:24:35,959 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:24:35,959 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:24:36,160 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 13:24:36,161 INFO L410 AbstractCegarLoop]: === Iteration 7 === [getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2019-12-07 13:24:36,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:24:36,162 INFO L82 PathProgramCache]: Analyzing trace with hash 974975320, now seen corresponding path program 2 times [2019-12-07 13:24:36,162 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:24:36,163 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813094924] [2019-12-07 13:24:36,163 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:24:36,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:24:36,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:24:36,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:24:36,247 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:24:36,247 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813094924] [2019-12-07 13:24:36,247 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [293632740] [2019-12-07 13:24:36,248 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_654b5de1-e805-4d7c-8502-53726d93f54e/bin/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 13:24:36,275 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2019-12-07 13:24:36,275 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 13:24:36,276 INFO L264 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 23 conjunts are in the unsatisfiable core [2019-12-07 13:24:36,277 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:24:36,303 INFO L377 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 [2019-12-07 13:24:36,304 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 13:24:36,308 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 13:24:36,309 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 13:24:36,309 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-12-07 13:24:36,357 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 13:24:36,357 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 28 [2019-12-07 13:24:36,358 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 13:24:36,371 INFO L614 ElimStorePlain]: treesize reduction 14, result has 54.8 percent of original size [2019-12-07 13:24:36,371 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-12-07 13:24:36,372 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:18, output treesize:17 [2019-12-07 13:24:36,402 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-12-07 13:24:36,402 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-12-07 13:24:36,402 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 13 [2019-12-07 13:24:36,402 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666797242] [2019-12-07 13:24:36,403 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-07 13:24:36,403 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 13:24:36,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-07 13:24:36,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2019-12-07 13:24:36,403 INFO L87 Difference]: Start difference. First operand 40 states and 41 transitions. Second operand 7 states. [2019-12-07 13:24:36,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:24:36,480 INFO L93 Difference]: Finished difference Result 40 states and 41 transitions. [2019-12-07 13:24:36,481 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 13:24:36,481 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 24 [2019-12-07 13:24:36,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:24:36,481 INFO L225 Difference]: With dead ends: 40 [2019-12-07 13:24:36,481 INFO L226 Difference]: Without dead ends: 40 [2019-12-07 13:24:36,482 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2019-12-07 13:24:36,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2019-12-07 13:24:36,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2019-12-07 13:24:36,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2019-12-07 13:24:36,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 41 transitions. [2019-12-07 13:24:36,484 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 41 transitions. Word has length 24 [2019-12-07 13:24:36,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:24:36,485 INFO L462 AbstractCegarLoop]: Abstraction has 40 states and 41 transitions. [2019-12-07 13:24:36,485 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-07 13:24:36,485 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 41 transitions. [2019-12-07 13:24:36,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-12-07 13:24:36,485 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:24:36,485 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:24:36,686 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 13:24:36,686 INFO L410 AbstractCegarLoop]: === Iteration 8 === [getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2019-12-07 13:24:36,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:24:36,686 INFO L82 PathProgramCache]: Analyzing trace with hash 159463802, now seen corresponding path program 1 times [2019-12-07 13:24:36,686 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:24:36,687 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259498657] [2019-12-07 13:24:36,687 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:24:36,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:24:36,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:24:36,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:24:36,721 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-12-07 13:24:36,721 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259498657] [2019-12-07 13:24:36,721 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:24:36,721 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 13:24:36,721 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520347634] [2019-12-07 13:24:36,721 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 13:24:36,722 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 13:24:36,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 13:24:36,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-07 13:24:36,722 INFO L87 Difference]: Start difference. First operand 40 states and 41 transitions. Second operand 5 states. [2019-12-07 13:24:36,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:24:36,767 INFO L93 Difference]: Finished difference Result 39 states and 40 transitions. [2019-12-07 13:24:36,767 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 13:24:36,767 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2019-12-07 13:24:36,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:24:36,768 INFO L225 Difference]: With dead ends: 39 [2019-12-07 13:24:36,768 INFO L226 Difference]: Without dead ends: 39 [2019-12-07 13:24:36,768 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-07 13:24:36,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-12-07 13:24:36,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2019-12-07 13:24:36,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-12-07 13:24:36,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 40 transitions. [2019-12-07 13:24:36,772 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 40 transitions. Word has length 25 [2019-12-07 13:24:36,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:24:36,772 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 40 transitions. [2019-12-07 13:24:36,772 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 13:24:36,772 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 40 transitions. [2019-12-07 13:24:36,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-12-07 13:24:36,773 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:24:36,773 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:24:36,773 INFO L410 AbstractCegarLoop]: === Iteration 9 === [getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2019-12-07 13:24:36,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:24:36,774 INFO L82 PathProgramCache]: Analyzing trace with hash 159463803, now seen corresponding path program 1 times [2019-12-07 13:24:36,774 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:24:36,774 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576534970] [2019-12-07 13:24:36,774 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:24:36,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:24:36,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:24:36,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:24:36,828 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:24:36,828 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576534970] [2019-12-07 13:24:36,829 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1166050408] [2019-12-07 13:24:36,829 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_654b5de1-e805-4d7c-8502-53726d93f54e/bin/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 13:24:36,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:24:36,853 INFO L264 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 13:24:36,854 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:24:36,857 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:24:36,858 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 13:24:36,858 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6] total 8 [2019-12-07 13:24:36,858 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392656123] [2019-12-07 13:24:36,858 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 13:24:36,858 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 13:24:36,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 13:24:36,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2019-12-07 13:24:36,859 INFO L87 Difference]: Start difference. First operand 39 states and 40 transitions. Second operand 8 states. [2019-12-07 13:24:36,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:24:36,924 INFO L93 Difference]: Finished difference Result 44 states and 45 transitions. [2019-12-07 13:24:36,924 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-07 13:24:36,924 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25 [2019-12-07 13:24:36,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:24:36,925 INFO L225 Difference]: With dead ends: 44 [2019-12-07 13:24:36,925 INFO L226 Difference]: Without dead ends: 44 [2019-12-07 13:24:36,925 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2019-12-07 13:24:36,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2019-12-07 13:24:36,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 42. [2019-12-07 13:24:36,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2019-12-07 13:24:36,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 43 transitions. [2019-12-07 13:24:36,928 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 43 transitions. Word has length 25 [2019-12-07 13:24:36,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:24:36,928 INFO L462 AbstractCegarLoop]: Abstraction has 42 states and 43 transitions. [2019-12-07 13:24:36,928 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 13:24:36,928 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 43 transitions. [2019-12-07 13:24:36,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-12-07 13:24:36,929 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:24:36,929 INFO L410 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:24:37,130 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 13:24:37,131 INFO L410 AbstractCegarLoop]: === Iteration 10 === [getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2019-12-07 13:24:37,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:24:37,132 INFO L82 PathProgramCache]: Analyzing trace with hash -532789622, now seen corresponding path program 2 times [2019-12-07 13:24:37,132 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:24:37,133 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783652412] [2019-12-07 13:24:37,133 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:24:37,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:24:37,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:24:37,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:24:37,327 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:24:37,328 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783652412] [2019-12-07 13:24:37,328 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [195228728] [2019-12-07 13:24:37,328 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_654b5de1-e805-4d7c-8502-53726d93f54e/bin/uautomizer/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 13:24:37,351 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2019-12-07 13:24:37,351 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 13:24:37,352 INFO L264 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 6 conjunts are in the unsatisfiable core [2019-12-07 13:24:37,353 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:24:37,357 INFO L377 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 [2019-12-07 13:24:37,358 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 13:24:37,361 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 13:24:37,362 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 13:24:37,362 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2019-12-07 13:24:37,381 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-12-07 13:24:37,381 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-12-07 13:24:37,381 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 11 [2019-12-07 13:24:37,381 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029949369] [2019-12-07 13:24:37,381 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 13:24:37,382 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 13:24:37,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 13:24:37,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2019-12-07 13:24:37,382 INFO L87 Difference]: Start difference. First operand 42 states and 43 transitions. Second operand 4 states. [2019-12-07 13:24:37,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:24:37,396 INFO L93 Difference]: Finished difference Result 41 states and 42 transitions. [2019-12-07 13:24:37,396 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 13:24:37,396 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 28 [2019-12-07 13:24:37,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:24:37,397 INFO L225 Difference]: With dead ends: 41 [2019-12-07 13:24:37,397 INFO L226 Difference]: Without dead ends: 41 [2019-12-07 13:24:37,397 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2019-12-07 13:24:37,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2019-12-07 13:24:37,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2019-12-07 13:24:37,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2019-12-07 13:24:37,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 42 transitions. [2019-12-07 13:24:37,400 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 42 transitions. Word has length 28 [2019-12-07 13:24:37,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:24:37,400 INFO L462 AbstractCegarLoop]: Abstraction has 41 states and 42 transitions. [2019-12-07 13:24:37,400 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 13:24:37,400 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 42 transitions. [2019-12-07 13:24:37,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2019-12-07 13:24:37,401 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:24:37,401 INFO L410 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:24:37,601 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 13:24:37,602 INFO L410 AbstractCegarLoop]: === Iteration 11 === [getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2019-12-07 13:24:37,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:24:37,603 INFO L82 PathProgramCache]: Analyzing trace with hash -1115740543, now seen corresponding path program 1 times [2019-12-07 13:24:37,603 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:24:37,604 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561440786] [2019-12-07 13:24:37,604 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:24:37,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:24:37,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:24:37,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:24:37,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:24:37,783 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-12-07 13:24:37,784 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561440786] [2019-12-07 13:24:37,784 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [585521734] [2019-12-07 13:24:37,784 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_654b5de1-e805-4d7c-8502-53726d93f54e/bin/uautomizer/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 13:24:37,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:24:37,812 INFO L264 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 6 conjunts are in the unsatisfiable core [2019-12-07 13:24:37,814 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:24:37,848 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-12-07 13:24:37,849 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 13:24:37,849 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2019-12-07 13:24:37,849 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888423131] [2019-12-07 13:24:37,849 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-12-07 13:24:37,849 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 13:24:37,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-12-07 13:24:37,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2019-12-07 13:24:37,850 INFO L87 Difference]: Start difference. First operand 41 states and 42 transitions. Second operand 12 states. [2019-12-07 13:24:37,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:24:37,930 INFO L93 Difference]: Finished difference Result 55 states and 56 transitions. [2019-12-07 13:24:37,930 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-12-07 13:24:37,930 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 36 [2019-12-07 13:24:37,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:24:37,931 INFO L225 Difference]: With dead ends: 55 [2019-12-07 13:24:37,931 INFO L226 Difference]: Without dead ends: 55 [2019-12-07 13:24:37,932 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2019-12-07 13:24:37,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2019-12-07 13:24:37,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 49. [2019-12-07 13:24:37,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2019-12-07 13:24:37,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 50 transitions. [2019-12-07 13:24:37,935 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 50 transitions. Word has length 36 [2019-12-07 13:24:37,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:24:37,936 INFO L462 AbstractCegarLoop]: Abstraction has 49 states and 50 transitions. [2019-12-07 13:24:37,936 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-12-07 13:24:37,936 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 50 transitions. [2019-12-07 13:24:37,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2019-12-07 13:24:37,937 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:24:37,937 INFO L410 BasicCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:24:38,137 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 13:24:38,139 INFO L410 AbstractCegarLoop]: === Iteration 12 === [getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2019-12-07 13:24:38,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:24:38,140 INFO L82 PathProgramCache]: Analyzing trace with hash 391670476, now seen corresponding path program 2 times [2019-12-07 13:24:38,140 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:24:38,141 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259555621] [2019-12-07 13:24:38,141 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:24:38,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:24:38,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:24:38,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:24:38,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:24:38,310 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:24:38,311 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259555621] [2019-12-07 13:24:38,311 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1315239607] [2019-12-07 13:24:38,311 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_654b5de1-e805-4d7c-8502-53726d93f54e/bin/uautomizer/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 13:24:38,342 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-12-07 13:24:38,343 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 13:24:38,343 INFO L264 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 13:24:38,345 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:24:38,349 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-12-07 13:24:38,350 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 13:24:38,350 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 8] total 14 [2019-12-07 13:24:38,350 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262041316] [2019-12-07 13:24:38,350 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-12-07 13:24:38,350 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 13:24:38,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-12-07 13:24:38,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2019-12-07 13:24:38,351 INFO L87 Difference]: Start difference. First operand 49 states and 50 transitions. Second operand 14 states. [2019-12-07 13:24:38,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:24:38,429 INFO L93 Difference]: Finished difference Result 54 states and 55 transitions. [2019-12-07 13:24:38,429 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-12-07 13:24:38,429 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 44 [2019-12-07 13:24:38,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:24:38,430 INFO L225 Difference]: With dead ends: 54 [2019-12-07 13:24:38,430 INFO L226 Difference]: Without dead ends: 54 [2019-12-07 13:24:38,430 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2019-12-07 13:24:38,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2019-12-07 13:24:38,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 52. [2019-12-07 13:24:38,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2019-12-07 13:24:38,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 53 transitions. [2019-12-07 13:24:38,433 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 53 transitions. Word has length 44 [2019-12-07 13:24:38,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:24:38,433 INFO L462 AbstractCegarLoop]: Abstraction has 52 states and 53 transitions. [2019-12-07 13:24:38,433 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-12-07 13:24:38,433 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 53 transitions. [2019-12-07 13:24:38,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-12-07 13:24:38,434 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:24:38,434 INFO L410 BasicCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:24:38,634 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 13:24:38,635 INFO L410 AbstractCegarLoop]: === Iteration 13 === [getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2019-12-07 13:24:38,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:24:38,636 INFO L82 PathProgramCache]: Analyzing trace with hash -1881551523, now seen corresponding path program 3 times [2019-12-07 13:24:38,636 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:24:38,637 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805294988] [2019-12-07 13:24:38,637 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:24:38,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:24:38,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:24:38,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:24:38,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:24:38,844 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:24:38,845 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805294988] [2019-12-07 13:24:38,845 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1231263] [2019-12-07 13:24:38,845 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_654b5de1-e805-4d7c-8502-53726d93f54e/bin/uautomizer/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 13:24:38,875 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2019-12-07 13:24:38,875 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 13:24:38,875 INFO L264 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 13:24:38,877 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:24:38,905 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2019-12-07 13:24:38,905 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 13:24:38,906 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 5] total 18 [2019-12-07 13:24:38,906 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646565910] [2019-12-07 13:24:38,906 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-12-07 13:24:38,906 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 13:24:38,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-12-07 13:24:38,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2019-12-07 13:24:38,907 INFO L87 Difference]: Start difference. First operand 52 states and 53 transitions. Second operand 18 states. [2019-12-07 13:24:39,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:24:39,004 INFO L93 Difference]: Finished difference Result 66 states and 67 transitions. [2019-12-07 13:24:39,004 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-12-07 13:24:39,004 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 47 [2019-12-07 13:24:39,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:24:39,004 INFO L225 Difference]: With dead ends: 66 [2019-12-07 13:24:39,005 INFO L226 Difference]: Without dead ends: 66 [2019-12-07 13:24:39,005 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342 [2019-12-07 13:24:39,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2019-12-07 13:24:39,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 60. [2019-12-07 13:24:39,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2019-12-07 13:24:39,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 61 transitions. [2019-12-07 13:24:39,008 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 61 transitions. Word has length 47 [2019-12-07 13:24:39,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:24:39,008 INFO L462 AbstractCegarLoop]: Abstraction has 60 states and 61 transitions. [2019-12-07 13:24:39,008 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-12-07 13:24:39,008 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 61 transitions. [2019-12-07 13:24:39,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2019-12-07 13:24:39,009 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:24:39,009 INFO L410 BasicCegarLoop]: trace histogram [7, 7, 7, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:24:39,209 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 13:24:39,210 INFO L410 AbstractCegarLoop]: === Iteration 14 === [getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2019-12-07 13:24:39,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:24:39,211 INFO L82 PathProgramCache]: Analyzing trace with hash -420814862, now seen corresponding path program 4 times [2019-12-07 13:24:39,211 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:24:39,212 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233622440] [2019-12-07 13:24:39,213 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:24:39,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:24:39,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:24:39,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:24:39,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:24:39,372 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 0 proven. 88 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:24:39,373 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233622440] [2019-12-07 13:24:39,373 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1102581932] [2019-12-07 13:24:39,373 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_654b5de1-e805-4d7c-8502-53726d93f54e/bin/uautomizer/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 13:24:39,402 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-12-07 13:24:39,402 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 13:24:39,403 INFO L264 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 9 conjunts are in the unsatisfiable core [2019-12-07 13:24:39,404 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:24:39,410 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-12-07 13:24:39,410 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 13:24:39,410 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 10] total 17 [2019-12-07 13:24:39,410 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686640501] [2019-12-07 13:24:39,411 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-12-07 13:24:39,411 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 13:24:39,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-12-07 13:24:39,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2019-12-07 13:24:39,411 INFO L87 Difference]: Start difference. First operand 60 states and 61 transitions. Second operand 17 states. [2019-12-07 13:24:39,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:24:39,509 INFO L93 Difference]: Finished difference Result 65 states and 66 transitions. [2019-12-07 13:24:39,509 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-12-07 13:24:39,509 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 55 [2019-12-07 13:24:39,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:24:39,510 INFO L225 Difference]: With dead ends: 65 [2019-12-07 13:24:39,510 INFO L226 Difference]: Without dead ends: 65 [2019-12-07 13:24:39,510 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306 [2019-12-07 13:24:39,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2019-12-07 13:24:39,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 63. [2019-12-07 13:24:39,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2019-12-07 13:24:39,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 64 transitions. [2019-12-07 13:24:39,513 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 64 transitions. Word has length 55 [2019-12-07 13:24:39,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:24:39,513 INFO L462 AbstractCegarLoop]: Abstraction has 63 states and 64 transitions. [2019-12-07 13:24:39,513 INFO L463 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-12-07 13:24:39,513 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 64 transitions. [2019-12-07 13:24:39,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-12-07 13:24:39,513 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:24:39,514 INFO L410 BasicCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:24:39,714 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 13:24:39,715 INFO L410 AbstractCegarLoop]: === Iteration 15 === [getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2019-12-07 13:24:39,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:24:39,716 INFO L82 PathProgramCache]: Analyzing trace with hash 548858049, now seen corresponding path program 5 times [2019-12-07 13:24:39,716 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:24:39,716 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170355277] [2019-12-07 13:24:39,716 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:24:39,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:24:39,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:24:39,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:24:39,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:24:39,890 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:24:39,890 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170355277] [2019-12-07 13:24:39,890 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2109643816] [2019-12-07 13:24:39,890 INFO L92 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_654b5de1-e805-4d7c-8502-53726d93f54e/bin/uautomizer/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 13:24:39,982 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2019-12-07 13:24:39,982 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 13:24:39,983 INFO L264 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 13:24:39,984 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:24:40,011 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2019-12-07 13:24:40,011 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 13:24:40,012 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 6] total 20 [2019-12-07 13:24:40,012 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188360530] [2019-12-07 13:24:40,012 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-12-07 13:24:40,012 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 13:24:40,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-12-07 13:24:40,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=289, Unknown=0, NotChecked=0, Total=380 [2019-12-07 13:24:40,013 INFO L87 Difference]: Start difference. First operand 63 states and 64 transitions. Second operand 20 states. [2019-12-07 13:24:40,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:24:40,142 INFO L93 Difference]: Finished difference Result 77 states and 78 transitions. [2019-12-07 13:24:40,142 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-12-07 13:24:40,142 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 58 [2019-12-07 13:24:40,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:24:40,143 INFO L225 Difference]: With dead ends: 77 [2019-12-07 13:24:40,143 INFO L226 Difference]: Without dead ends: 77 [2019-12-07 13:24:40,144 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=105, Invalid=315, Unknown=0, NotChecked=0, Total=420 [2019-12-07 13:24:40,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2019-12-07 13:24:40,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 71. [2019-12-07 13:24:40,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2019-12-07 13:24:40,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 72 transitions. [2019-12-07 13:24:40,147 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 72 transitions. Word has length 58 [2019-12-07 13:24:40,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:24:40,147 INFO L462 AbstractCegarLoop]: Abstraction has 71 states and 72 transitions. [2019-12-07 13:24:40,147 INFO L463 AbstractCegarLoop]: Interpolant automaton has 20 states. [2019-12-07 13:24:40,147 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 72 transitions. [2019-12-07 13:24:40,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2019-12-07 13:24:40,148 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:24:40,148 INFO L410 BasicCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:24:40,348 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 13:24:40,349 INFO L410 AbstractCegarLoop]: === Iteration 16 === [getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2019-12-07 13:24:40,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:24:40,349 INFO L82 PathProgramCache]: Analyzing trace with hash 897764172, now seen corresponding path program 6 times [2019-12-07 13:24:40,349 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:24:40,349 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759108576] [2019-12-07 13:24:40,349 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:24:40,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:24:40,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:24:40,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:24:40,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:24:40,540 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 151 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:24:40,540 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759108576] [2019-12-07 13:24:40,540 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [408637054] [2019-12-07 13:24:40,540 INFO L92 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_654b5de1-e805-4d7c-8502-53726d93f54e/bin/uautomizer/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 13:24:40,658 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2019-12-07 13:24:40,658 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 13:24:40,659 INFO L264 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 6 conjunts are in the unsatisfiable core [2019-12-07 13:24:40,660 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:24:40,679 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2019-12-07 13:24:40,679 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 13:24:40,679 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 7] total 21 [2019-12-07 13:24:40,679 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458138215] [2019-12-07 13:24:40,679 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2019-12-07 13:24:40,679 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 13:24:40,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2019-12-07 13:24:40,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=318, Unknown=0, NotChecked=0, Total=420 [2019-12-07 13:24:40,680 INFO L87 Difference]: Start difference. First operand 71 states and 72 transitions. Second operand 21 states. [2019-12-07 13:24:40,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:24:40,789 INFO L93 Difference]: Finished difference Result 83 states and 84 transitions. [2019-12-07 13:24:40,789 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-12-07 13:24:40,789 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 66 [2019-12-07 13:24:40,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:24:40,789 INFO L225 Difference]: With dead ends: 83 [2019-12-07 13:24:40,790 INFO L226 Difference]: Without dead ends: 83 [2019-12-07 13:24:40,790 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=117, Invalid=345, Unknown=0, NotChecked=0, Total=462 [2019-12-07 13:24:40,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2019-12-07 13:24:40,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 79. [2019-12-07 13:24:40,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2019-12-07 13:24:40,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 80 transitions. [2019-12-07 13:24:40,792 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 80 transitions. Word has length 66 [2019-12-07 13:24:40,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:24:40,793 INFO L462 AbstractCegarLoop]: Abstraction has 79 states and 80 transitions. [2019-12-07 13:24:40,793 INFO L463 AbstractCegarLoop]: Interpolant automaton has 21 states. [2019-12-07 13:24:40,793 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 80 transitions. [2019-12-07 13:24:40,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2019-12-07 13:24:40,793 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:24:40,793 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:24:40,994 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 13:24:40,994 INFO L410 AbstractCegarLoop]: === Iteration 17 === [getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2019-12-07 13:24:40,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:24:40,994 INFO L82 PathProgramCache]: Analyzing trace with hash -243103583, now seen corresponding path program 7 times [2019-12-07 13:24:40,994 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:24:40,994 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539059253] [2019-12-07 13:24:40,994 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:24:41,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:24:41,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:24:41,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:24:41,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:24:41,089 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-12-07 13:24:41,089 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539059253] [2019-12-07 13:24:41,089 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [841418146] [2019-12-07 13:24:41,089 INFO L92 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_654b5de1-e805-4d7c-8502-53726d93f54e/bin/uautomizer/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 13:24:41,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:24:41,131 INFO L264 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 13:24:41,133 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:24:41,141 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-12-07 13:24:41,142 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 13:24:41,142 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8] total 11 [2019-12-07 13:24:41,142 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123656346] [2019-12-07 13:24:41,142 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-12-07 13:24:41,142 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 13:24:41,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-12-07 13:24:41,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2019-12-07 13:24:41,143 INFO L87 Difference]: Start difference. First operand 79 states and 80 transitions. Second operand 11 states. [2019-12-07 13:24:41,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:24:41,213 INFO L93 Difference]: Finished difference Result 88 states and 89 transitions. [2019-12-07 13:24:41,213 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-07 13:24:41,213 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 74 [2019-12-07 13:24:41,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:24:41,213 INFO L225 Difference]: With dead ends: 88 [2019-12-07 13:24:41,213 INFO L226 Difference]: Without dead ends: 88 [2019-12-07 13:24:41,214 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2019-12-07 13:24:41,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2019-12-07 13:24:41,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 84. [2019-12-07 13:24:41,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2019-12-07 13:24:41,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 85 transitions. [2019-12-07 13:24:41,216 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 85 transitions. Word has length 74 [2019-12-07 13:24:41,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:24:41,216 INFO L462 AbstractCegarLoop]: Abstraction has 84 states and 85 transitions. [2019-12-07 13:24:41,216 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-12-07 13:24:41,216 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 85 transitions. [2019-12-07 13:24:41,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2019-12-07 13:24:41,217 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:24:41,217 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:24:41,417 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 13:24:41,418 INFO L410 AbstractCegarLoop]: === Iteration 18 === [getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2019-12-07 13:24:41,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:24:41,419 INFO L82 PathProgramCache]: Analyzing trace with hash 1204178333, now seen corresponding path program 8 times [2019-12-07 13:24:41,419 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:24:41,419 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82872594] [2019-12-07 13:24:41,420 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:24:41,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:24:41,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:24:41,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:24:41,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:24:41,685 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-12-07 13:24:41,685 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82872594] [2019-12-07 13:24:41,685 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1772137618] [2019-12-07 13:24:41,686 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_654b5de1-e805-4d7c-8502-53726d93f54e/bin/uautomizer/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 13:24:41,726 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-12-07 13:24:41,726 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 13:24:41,727 INFO L264 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 8 conjunts are in the unsatisfiable core [2019-12-07 13:24:41,729 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:24:41,736 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-12-07 13:24:41,736 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 13:24:41,737 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9] total 12 [2019-12-07 13:24:41,737 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190362661] [2019-12-07 13:24:41,737 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-12-07 13:24:41,737 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 13:24:41,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-12-07 13:24:41,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2019-12-07 13:24:41,737 INFO L87 Difference]: Start difference. First operand 84 states and 85 transitions. Second operand 12 states. [2019-12-07 13:24:41,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:24:41,824 INFO L93 Difference]: Finished difference Result 93 states and 94 transitions. [2019-12-07 13:24:41,825 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-12-07 13:24:41,825 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 79 [2019-12-07 13:24:41,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:24:41,826 INFO L225 Difference]: With dead ends: 93 [2019-12-07 13:24:41,826 INFO L226 Difference]: Without dead ends: 93 [2019-12-07 13:24:41,826 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2019-12-07 13:24:41,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2019-12-07 13:24:41,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 89. [2019-12-07 13:24:41,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2019-12-07 13:24:41,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 90 transitions. [2019-12-07 13:24:41,834 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 90 transitions. Word has length 79 [2019-12-07 13:24:41,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:24:41,835 INFO L462 AbstractCegarLoop]: Abstraction has 89 states and 90 transitions. [2019-12-07 13:24:41,835 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-12-07 13:24:41,835 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 90 transitions. [2019-12-07 13:24:41,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2019-12-07 13:24:41,836 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:24:41,836 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:24:42,036 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 13:24:42,036 INFO L410 AbstractCegarLoop]: === Iteration 19 === [getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2019-12-07 13:24:42,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:24:42,037 INFO L82 PathProgramCache]: Analyzing trace with hash -2025699807, now seen corresponding path program 9 times [2019-12-07 13:24:42,037 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:24:42,037 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752628145] [2019-12-07 13:24:42,037 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:24:42,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:24:42,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:24:42,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:24:42,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:24:42,158 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-12-07 13:24:42,158 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752628145] [2019-12-07 13:24:42,158 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [775922170] [2019-12-07 13:24:42,158 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_654b5de1-e805-4d7c-8502-53726d93f54e/bin/uautomizer/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 13:24:42,310 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2019-12-07 13:24:42,310 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 13:24:42,311 INFO L264 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 16 conjunts are in the unsatisfiable core [2019-12-07 13:24:42,313 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:24:42,334 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 28 proven. 112 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2019-12-07 13:24:42,334 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 13:24:42,334 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12] total 15 [2019-12-07 13:24:42,334 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142061717] [2019-12-07 13:24:42,334 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-12-07 13:24:42,335 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 13:24:42,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-12-07 13:24:42,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2019-12-07 13:24:42,335 INFO L87 Difference]: Start difference. First operand 89 states and 90 transitions. Second operand 15 states. [2019-12-07 13:24:42,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:24:42,437 INFO L93 Difference]: Finished difference Result 98 states and 99 transitions. [2019-12-07 13:24:42,437 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-12-07 13:24:42,437 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 84 [2019-12-07 13:24:42,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:24:42,438 INFO L225 Difference]: With dead ends: 98 [2019-12-07 13:24:42,438 INFO L226 Difference]: Without dead ends: 98 [2019-12-07 13:24:42,438 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2019-12-07 13:24:42,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2019-12-07 13:24:42,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 94. [2019-12-07 13:24:42,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2019-12-07 13:24:42,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 95 transitions. [2019-12-07 13:24:42,440 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 95 transitions. Word has length 84 [2019-12-07 13:24:42,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:24:42,440 INFO L462 AbstractCegarLoop]: Abstraction has 94 states and 95 transitions. [2019-12-07 13:24:42,440 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-12-07 13:24:42,440 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 95 transitions. [2019-12-07 13:24:42,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2019-12-07 13:24:42,441 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:24:42,441 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:24:42,641 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 13:24:42,642 INFO L410 AbstractCegarLoop]: === Iteration 20 === [getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2019-12-07 13:24:42,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:24:42,643 INFO L82 PathProgramCache]: Analyzing trace with hash -809435107, now seen corresponding path program 10 times [2019-12-07 13:24:42,643 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:24:42,643 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845429493] [2019-12-07 13:24:42,644 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:24:42,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:24:42,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:24:42,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:24:42,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:24:42,883 INFO L134 CoverageAnalysis]: Checked inductivity of 293 backedges. 0 proven. 148 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-12-07 13:24:42,883 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845429493] [2019-12-07 13:24:42,883 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1057418859] [2019-12-07 13:24:42,883 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_654b5de1-e805-4d7c-8502-53726d93f54e/bin/uautomizer/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 13:24:43,162 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-12-07 13:24:43,163 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 13:24:43,164 INFO L264 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 10 conjunts are in the unsatisfiable core [2019-12-07 13:24:43,165 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:24:43,174 INFO L134 CoverageAnalysis]: Checked inductivity of 293 backedges. 0 proven. 148 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-12-07 13:24:43,174 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 13:24:43,174 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11] total 14 [2019-12-07 13:24:43,174 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164695482] [2019-12-07 13:24:43,174 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-12-07 13:24:43,174 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 13:24:43,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-12-07 13:24:43,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2019-12-07 13:24:43,175 INFO L87 Difference]: Start difference. First operand 94 states and 95 transitions. Second operand 14 states. [2019-12-07 13:24:43,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:24:43,255 INFO L93 Difference]: Finished difference Result 103 states and 104 transitions. [2019-12-07 13:24:43,255 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-12-07 13:24:43,255 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 89 [2019-12-07 13:24:43,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:24:43,256 INFO L225 Difference]: With dead ends: 103 [2019-12-07 13:24:43,256 INFO L226 Difference]: Without dead ends: 103 [2019-12-07 13:24:43,256 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2019-12-07 13:24:43,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2019-12-07 13:24:43,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 99. [2019-12-07 13:24:43,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2019-12-07 13:24:43,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 100 transitions. [2019-12-07 13:24:43,258 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 100 transitions. Word has length 89 [2019-12-07 13:24:43,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:24:43,258 INFO L462 AbstractCegarLoop]: Abstraction has 99 states and 100 transitions. [2019-12-07 13:24:43,258 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-12-07 13:24:43,258 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 100 transitions. [2019-12-07 13:24:43,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2019-12-07 13:24:43,259 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:24:43,259 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:24:43,459 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 13:24:43,460 INFO L410 AbstractCegarLoop]: === Iteration 21 === [getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2019-12-07 13:24:43,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:24:43,461 INFO L82 PathProgramCache]: Analyzing trace with hash -2070731871, now seen corresponding path program 11 times [2019-12-07 13:24:43,461 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:24:43,461 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116504507] [2019-12-07 13:24:43,462 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:24:43,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:24:43,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:24:43,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:24:43,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:24:43,615 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 0 proven. 189 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-12-07 13:24:43,616 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116504507] [2019-12-07 13:24:43,616 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [923618243] [2019-12-07 13:24:43,616 INFO L92 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_654b5de1-e805-4d7c-8502-53726d93f54e/bin/uautomizer/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 13:24:44,747 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2019-12-07 13:24:44,747 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 13:24:44,749 INFO L264 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 11 conjunts are in the unsatisfiable core [2019-12-07 13:24:44,750 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:24:44,762 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 0 proven. 189 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-12-07 13:24:44,762 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 13:24:44,762 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 12] total 15 [2019-12-07 13:24:44,762 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626919675] [2019-12-07 13:24:44,763 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-12-07 13:24:44,763 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 13:24:44,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-12-07 13:24:44,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=135, Unknown=0, NotChecked=0, Total=210 [2019-12-07 13:24:44,763 INFO L87 Difference]: Start difference. First operand 99 states and 100 transitions. Second operand 15 states. [2019-12-07 13:24:44,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:24:44,858 INFO L93 Difference]: Finished difference Result 104 states and 105 transitions. [2019-12-07 13:24:44,858 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-12-07 13:24:44,859 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 94 [2019-12-07 13:24:44,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:24:44,859 INFO L225 Difference]: With dead ends: 104 [2019-12-07 13:24:44,859 INFO L226 Difference]: Without dead ends: 104 [2019-12-07 13:24:44,860 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=75, Invalid=135, Unknown=0, NotChecked=0, Total=210 [2019-12-07 13:24:44,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2019-12-07 13:24:44,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2019-12-07 13:24:44,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2019-12-07 13:24:44,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 105 transitions. [2019-12-07 13:24:44,862 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 105 transitions. Word has length 94 [2019-12-07 13:24:44,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:24:44,862 INFO L462 AbstractCegarLoop]: Abstraction has 104 states and 105 transitions. [2019-12-07 13:24:44,862 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-12-07 13:24:44,862 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 105 transitions. [2019-12-07 13:24:44,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2019-12-07 13:24:44,863 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:24:44,863 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:24:45,064 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 13:24:45,065 INFO L410 AbstractCegarLoop]: === Iteration 22 === [getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2019-12-07 13:24:45,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:24:45,066 INFO L82 PathProgramCache]: Analyzing trace with hash -1646357859, now seen corresponding path program 12 times [2019-12-07 13:24:45,066 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:24:45,066 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802894889] [2019-12-07 13:24:45,067 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:24:45,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:24:45,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:24:45,153 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 13:24:45,153 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 13:24:45,181 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 44 could not be translated for associated CType ARRAY#_10_~INT# [2019-12-07 13:24:45,182 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 43 could not be translated for associated CType ARRAY#_10_~INT# [2019-12-07 13:24:45,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 01:24:45 BoogieIcfgContainer [2019-12-07 13:24:45,212 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 13:24:45,212 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 13:24:45,212 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 13:24:45,212 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 13:24:45,213 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:24:34" (3/4) ... [2019-12-07 13:24:45,214 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 13:24:45,220 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 43 could not be translated for associated CType ARRAY#_10_~INT# [2019-12-07 13:24:45,220 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 44 could not be translated for associated CType ARRAY#_10_~INT# [2019-12-07 13:24:45,266 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_654b5de1-e805-4d7c-8502-53726d93f54e/bin/uautomizer/witness.graphml [2019-12-07 13:24:45,266 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 13:24:45,267 INFO L168 Benchmark]: Toolchain (without parser) took 11600.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 187.2 MB). Free memory was 939.4 MB in the beginning and 1.2 GB in the end (delta: -242.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 13:24:45,267 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 955.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 13:24:45,267 INFO L168 Benchmark]: CACSL2BoogieTranslator took 188.38 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.7 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -159.6 MB). Peak memory consumption was 23.6 MB. Max. memory is 11.5 GB. [2019-12-07 13:24:45,268 INFO L168 Benchmark]: Boogie Preprocessor took 23.96 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-12-07 13:24:45,268 INFO L168 Benchmark]: RCFGBuilder took 203.66 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 23.2 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-12-07 13:24:45,268 INFO L168 Benchmark]: TraceAbstraction took 11127.07 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 85.5 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -111.5 MB). Peak memory consumption was 341.3 MB. Max. memory is 11.5 GB. [2019-12-07 13:24:45,268 INFO L168 Benchmark]: Witness Printer took 53.90 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 11.5 GB. [2019-12-07 13:24:45,269 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 955.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 188.38 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.7 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -159.6 MB). Peak memory consumption was 23.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 23.96 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 203.66 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 23.2 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 11127.07 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 85.5 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -111.5 MB). Peak memory consumption was 341.3 MB. Max. memory is 11.5 GB. * Witness Printer took 53.90 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 44 could not be translated for associated CType ARRAY#_10_~INT# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 43 could not be translated for associated CType ARRAY#_10_~INT# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 43 could not be translated for associated CType ARRAY#_10_~INT# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 44 could not be translated for associated CType ARRAY#_10_~INT# * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 26]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L1] int array[10]; VAL [\old(array)=null, \old(array)=null, array={11:0}] [L25] CALL, EXPR getNumbers2() VAL [array={11:0}] [L13] CALL, EXPR getNumbers() VAL [array={11:0}] [L5] int i = 0; VAL [array={11:0}, i=0] [L5] COND TRUE i < 10 VAL [array={11:0}, i=0] [L6] array[i] = i VAL [array={11:0}, i=0] [L5] ++i VAL [array={11:0}, i=1] [L5] COND TRUE i < 10 VAL [array={11:0}, i=1] [L6] array[i] = i VAL [array={11:0}, i=1] [L5] ++i VAL [array={11:0}, i=2] [L5] COND TRUE i < 10 VAL [array={11:0}, i=2] [L6] array[i] = i VAL [array={11:0}, i=2] [L5] ++i VAL [array={11:0}, i=3] [L5] COND TRUE i < 10 VAL [array={11:0}, i=3] [L6] array[i] = i VAL [array={11:0}, i=3] [L5] ++i VAL [array={11:0}, i=4] [L5] COND TRUE i < 10 VAL [array={11:0}, i=4] [L6] array[i] = i VAL [array={11:0}, i=4] [L5] ++i VAL [array={11:0}, i=5] [L5] COND TRUE i < 10 VAL [array={11:0}, i=5] [L6] array[i] = i VAL [array={11:0}, i=5] [L5] ++i VAL [array={11:0}, i=6] [L5] COND TRUE i < 10 VAL [array={11:0}, i=6] [L6] array[i] = i VAL [array={11:0}, i=6] [L5] ++i VAL [array={11:0}, i=7] [L5] COND TRUE i < 10 VAL [array={11:0}, i=7] [L6] array[i] = i VAL [array={11:0}, i=7] [L5] ++i VAL [array={11:0}, i=8] [L5] COND TRUE i < 10 VAL [array={11:0}, i=8] [L6] array[i] = i VAL [array={11:0}, i=8] [L5] ++i VAL [array={11:0}, i=9] [L5] COND TRUE i < 10 VAL [array={11:0}, i=9] [L6] array[i] = i VAL [array={11:0}, i=9] [L5] ++i VAL [array={11:0}, i=10] [L5] COND FALSE !(i < 10) VAL [array={11:0}, i=10] [L9] return array; VAL [\result={11:0}, array={11:0}, i=10] [L13] RET, EXPR getNumbers() VAL [array={11:0}, getNumbers()={11:0}] [L13] int* numbers = getNumbers(); [L15] int numbers2[10]; [L17] int i = 0; VAL [array={11:0}, i=0, numbers={11:0}, numbers2={10:0}] [L17] COND TRUE i < 10 VAL [array={11:0}, i=0, numbers={11:0}, numbers2={10:0}] [L18] EXPR numbers[i] VAL [array={11:0}, i=0, numbers={11:0}, numbers2={10:0}, numbers[i]=0] [L18] numbers2[i] = numbers[i] VAL [array={11:0}, i=0, numbers={11:0}, numbers2={10:0}, numbers[i]=0] [L17] ++i VAL [array={11:0}, i=1, numbers={11:0}, numbers2={10:0}] [L17] COND TRUE i < 10 VAL [array={11:0}, i=1, numbers={11:0}, numbers2={10:0}] [L18] EXPR numbers[i] VAL [array={11:0}, i=1, numbers={11:0}, numbers2={10:0}, numbers[i]=1] [L18] numbers2[i] = numbers[i] VAL [array={11:0}, i=1, numbers={11:0}, numbers2={10:0}, numbers[i]=1] [L17] ++i VAL [array={11:0}, i=2, numbers={11:0}, numbers2={10:0}] [L17] COND TRUE i < 10 VAL [array={11:0}, i=2, numbers={11:0}, numbers2={10:0}] [L18] EXPR numbers[i] VAL [array={11:0}, i=2, numbers={11:0}, numbers2={10:0}, numbers[i]=2] [L18] numbers2[i] = numbers[i] VAL [array={11:0}, i=2, numbers={11:0}, numbers2={10:0}, numbers[i]=2] [L17] ++i VAL [array={11:0}, i=3, numbers={11:0}, numbers2={10:0}] [L17] COND TRUE i < 10 VAL [array={11:0}, i=3, numbers={11:0}, numbers2={10:0}] [L18] EXPR numbers[i] VAL [array={11:0}, i=3, numbers={11:0}, numbers2={10:0}, numbers[i]=3] [L18] numbers2[i] = numbers[i] VAL [array={11:0}, i=3, numbers={11:0}, numbers2={10:0}, numbers[i]=3] [L17] ++i VAL [array={11:0}, i=4, numbers={11:0}, numbers2={10:0}] [L17] COND TRUE i < 10 VAL [array={11:0}, i=4, numbers={11:0}, numbers2={10:0}] [L18] EXPR numbers[i] VAL [array={11:0}, i=4, numbers={11:0}, numbers2={10:0}, numbers[i]=4] [L18] numbers2[i] = numbers[i] VAL [array={11:0}, i=4, numbers={11:0}, numbers2={10:0}, numbers[i]=4] [L17] ++i VAL [array={11:0}, i=5, numbers={11:0}, numbers2={10:0}] [L17] COND TRUE i < 10 VAL [array={11:0}, i=5, numbers={11:0}, numbers2={10:0}] [L18] EXPR numbers[i] VAL [array={11:0}, i=5, numbers={11:0}, numbers2={10:0}, numbers[i]=5] [L18] numbers2[i] = numbers[i] VAL [array={11:0}, i=5, numbers={11:0}, numbers2={10:0}, numbers[i]=5] [L17] ++i VAL [array={11:0}, i=6, numbers={11:0}, numbers2={10:0}] [L17] COND TRUE i < 10 VAL [array={11:0}, i=6, numbers={11:0}, numbers2={10:0}] [L18] EXPR numbers[i] VAL [array={11:0}, i=6, numbers={11:0}, numbers2={10:0}, numbers[i]=6] [L18] numbers2[i] = numbers[i] VAL [array={11:0}, i=6, numbers={11:0}, numbers2={10:0}, numbers[i]=6] [L17] ++i VAL [array={11:0}, i=7, numbers={11:0}, numbers2={10:0}] [L17] COND TRUE i < 10 VAL [array={11:0}, i=7, numbers={11:0}, numbers2={10:0}] [L18] EXPR numbers[i] VAL [array={11:0}, i=7, numbers={11:0}, numbers2={10:0}, numbers[i]=7] [L18] numbers2[i] = numbers[i] VAL [array={11:0}, i=7, numbers={11:0}, numbers2={10:0}, numbers[i]=7] [L17] ++i VAL [array={11:0}, i=8, numbers={11:0}, numbers2={10:0}] [L17] COND TRUE i < 10 VAL [array={11:0}, i=8, numbers={11:0}, numbers2={10:0}] [L18] EXPR numbers[i] VAL [array={11:0}, i=8, numbers={11:0}, numbers2={10:0}, numbers[i]=8] [L18] numbers2[i] = numbers[i] VAL [array={11:0}, i=8, numbers={11:0}, numbers2={10:0}, numbers[i]=8] [L17] ++i VAL [array={11:0}, i=9, numbers={11:0}, numbers2={10:0}] [L17] COND TRUE i < 10 VAL [array={11:0}, i=9, numbers={11:0}, numbers2={10:0}] [L18] EXPR numbers[i] VAL [array={11:0}, i=9, numbers={11:0}, numbers2={10:0}, numbers[i]=9] [L18] numbers2[i] = numbers[i] VAL [array={11:0}, i=9, numbers={11:0}, numbers2={10:0}, numbers[i]=9] [L17] ++i VAL [array={11:0}, i=10, numbers={11:0}, numbers2={10:0}] [L17] COND FALSE !(i < 10) VAL [array={11:0}, i=10, numbers={11:0}, numbers2={10:0}] [L21] return numbers2; [L21] return numbers2; VAL [\result={10:0}, array={11:0}, i=10, numbers={11:0}] [L25] RET, EXPR getNumbers2() VAL [array={11:0}, getNumbers2()={10:0}] [L25] int *numbers = getNumbers2(); [L26] numbers[0] = 100 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 39 locations, 9 error locations. Result: UNSAFE, OverallTime: 11.0s, OverallIterations: 22, TraceHistogramMax: 10, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 503 SDtfs, 565 SDslu, 2872 SDs, 0 SdLazy, 2334 SolverSat, 144 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1143 GetRequests, 905 SyntacticMatches, 1 SemanticMatches, 237 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 483 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=104occurred in iteration=21, 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, 21 MinimizatonAttempts, 56 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 2.1s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 1862 NumberOfCodeBlocks, 1815 NumberOfCodeBlocksAsserted, 76 NumberOfCheckSat, 1726 ConstructedInterpolants, 0 QuantifiedInterpolants, 245869 SizeOfPredicates, 22 NumberOfNonLiveVariables, 2960 ConjunctsInSsa, 130 ConjunctsInUnsatCore, 37 InterpolantComputations, 7 PerfectInterpolantSequences, 1811/3687 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...