./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety-ext3/getNumbers3.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_a35c3cc9-88f3-4ab9-b5e0-7ec3bb7c66d1/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_a35c3cc9-88f3-4ab9-b5e0-7ec3bb7c66d1/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a35c3cc9-88f3-4ab9-b5e0-7ec3bb7c66d1/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a35c3cc9-88f3-4ab9-b5e0-7ec3bb7c66d1/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-ext3/getNumbers3.c -s /tmp/vcloud-vcloud-master/worker/run_dir_a35c3cc9-88f3-4ab9-b5e0-7ec3bb7c66d1/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a35c3cc9-88f3-4ab9-b5e0-7ec3bb7c66d1/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 c8f17cf5334c3a5b079beafc57a2e2bffaea721f ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 23:36:25,530 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 23:36:25,532 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 23:36:25,585 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 23:36:25,586 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 23:36:25,587 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 23:36:25,589 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 23:36:25,591 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 23:36:25,593 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 23:36:25,594 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 23:36:25,596 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 23:36:25,597 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 23:36:25,598 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 23:36:25,599 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 23:36:25,600 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 23:36:25,601 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 23:36:25,602 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 23:36:25,603 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 23:36:25,606 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 23:36:25,608 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 23:36:25,610 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 23:36:25,611 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 23:36:25,613 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 23:36:25,616 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 23:36:25,620 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 23:36:25,627 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 23:36:25,627 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 23:36:25,628 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 23:36:25,629 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 23:36:25,630 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 23:36:25,631 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 23:36:25,633 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 23:36:25,634 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 23:36:25,635 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 23:36:25,637 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 23:36:25,638 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 23:36:25,639 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 23:36:25,640 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 23:36:25,641 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 23:36:25,642 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 23:36:25,643 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 23:36:25,644 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a35c3cc9-88f3-4ab9-b5e0-7ec3bb7c66d1/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2020-11-29 23:36:25,694 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 23:36:25,694 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 23:36:25,696 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 23:36:25,697 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 23:36:25,697 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 23:36:25,697 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 23:36:25,697 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 23:36:25,698 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 23:36:25,698 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 23:36:25,698 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 23:36:25,699 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 23:36:25,699 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-29 23:36:25,700 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-29 23:36:25,700 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-29 23:36:25,700 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 23:36:25,700 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-29 23:36:25,700 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 23:36:25,701 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 23:36:25,701 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 23:36:25,701 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 23:36:25,701 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 23:36:25,702 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 23:36:25,702 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 23:36:25,702 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 23:36:25,702 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 23:36:25,703 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 23:36:25,703 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 23:36:25,703 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 23:36:25,703 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_a35c3cc9-88f3-4ab9-b5e0-7ec3bb7c66d1/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_a35c3cc9-88f3-4ab9-b5e0-7ec3bb7c66d1/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c8f17cf5334c3a5b079beafc57a2e2bffaea721f [2020-11-29 23:36:25,973 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 23:36:26,010 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 23:36:26,012 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 23:36:26,013 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 23:36:26,014 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 23:36:26,014 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a35c3cc9-88f3-4ab9-b5e0-7ec3bb7c66d1/bin/uautomizer/../../sv-benchmarks/c/memsafety-ext3/getNumbers3.c [2020-11-29 23:36:26,096 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a35c3cc9-88f3-4ab9-b5e0-7ec3bb7c66d1/bin/uautomizer/data/3b69ebfcb/05c955dc64664818a52dce3ddc2bd8e4/FLAG73e79f2fb [2020-11-29 23:36:26,527 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 23:36:26,528 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a35c3cc9-88f3-4ab9-b5e0-7ec3bb7c66d1/sv-benchmarks/c/memsafety-ext3/getNumbers3.c [2020-11-29 23:36:26,533 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a35c3cc9-88f3-4ab9-b5e0-7ec3bb7c66d1/bin/uautomizer/data/3b69ebfcb/05c955dc64664818a52dce3ddc2bd8e4/FLAG73e79f2fb [2020-11-29 23:36:26,928 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a35c3cc9-88f3-4ab9-b5e0-7ec3bb7c66d1/bin/uautomizer/data/3b69ebfcb/05c955dc64664818a52dce3ddc2bd8e4 [2020-11-29 23:36:26,930 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 23:36:26,931 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-29 23:36:26,937 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 23:36:26,937 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 23:36:26,940 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 23:36:26,941 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:36:26" (1/1) ... [2020-11-29 23:36:26,943 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a533572 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:36:26, skipping insertion in model container [2020-11-29 23:36:26,944 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:36:26" (1/1) ... [2020-11-29 23:36:26,952 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 23:36:26,969 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 23:36:27,130 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:36:27,146 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 23:36:27,191 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:36:27,213 INFO L208 MainTranslator]: Completed translation [2020-11-29 23:36:27,214 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:36:27 WrapperNode [2020-11-29 23:36:27,215 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 23:36:27,216 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 23:36:27,217 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 23:36:27,217 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 23:36:27,228 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:36:27" (1/1) ... [2020-11-29 23:36:27,228 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:36:27" (1/1) ... [2020-11-29 23:36:27,237 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:36:27" (1/1) ... [2020-11-29 23:36:27,238 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:36:27" (1/1) ... [2020-11-29 23:36:27,250 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:36:27" (1/1) ... [2020-11-29 23:36:27,254 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:36:27" (1/1) ... [2020-11-29 23:36:27,257 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:36:27" (1/1) ... [2020-11-29 23:36:27,265 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 23:36:27,266 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 23:36:27,267 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 23:36:27,267 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 23:36:27,269 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:36:27" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a35c3cc9-88f3-4ab9-b5e0-7ec3bb7c66d1/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 [2020-11-29 23:36:27,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-29 23:36:27,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 23:36:27,344 INFO L138 BoogieDeclarations]: Found implementation of procedure getNumbers [2020-11-29 23:36:27,344 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-29 23:36:27,345 INFO L130 BoogieDeclarations]: Found specification of procedure getNumbers [2020-11-29 23:36:27,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-29 23:36:27,346 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-29 23:36:27,346 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-29 23:36:27,346 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 23:36:27,347 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 23:36:27,347 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-29 23:36:27,348 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 23:36:27,590 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 23:36:27,590 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-11-29 23:36:27,592 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:36:27 BoogieIcfgContainer [2020-11-29 23:36:27,592 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 23:36:27,604 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 23:36:27,604 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 23:36:27,611 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 23:36:27,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 11:36:26" (1/3) ... [2020-11-29 23:36:27,612 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c2d36a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 11:36:27, skipping insertion in model container [2020-11-29 23:36:27,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:36:27" (2/3) ... [2020-11-29 23:36:27,613 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c2d36a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 11:36:27, skipping insertion in model container [2020-11-29 23:36:27,621 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:36:27" (3/3) ... [2020-11-29 23:36:27,623 INFO L111 eAbstractionObserver]: Analyzing ICFG getNumbers3.c [2020-11-29 23:36:27,633 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 23:36:27,638 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-11-29 23:36:27,654 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-11-29 23:36:27,669 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 23:36:27,670 INFO L378 AbstractCegarLoop]: Hoare is false [2020-11-29 23:36:27,670 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 23:36:27,670 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 23:36:27,670 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 23:36:27,670 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 23:36:27,670 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 23:36:27,670 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 23:36:27,680 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2020-11-29 23:36:27,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-29 23:36:27,688 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:36:27,688 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:36:27,689 INFO L429 AbstractCegarLoop]: === Iteration 1 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2020-11-29 23:36:27,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:36:27,694 INFO L82 PathProgramCache]: Analyzing trace with hash -335730452, now seen corresponding path program 1 times [2020-11-29 23:36:27,703 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:36:27,704 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025685178] [2020-11-29 23:36:27,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:36:27,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:36:27,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-29 23:36:28,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:36:28,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:36:28,035 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025685178] [2020-11-29 23:36:28,036 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:36:28,036 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 23:36:28,037 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138400390] [2020-11-29 23:36:28,041 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 23:36:28,044 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:36:28,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 23:36:28,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 23:36:28,067 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 4 states. [2020-11-29 23:36:28,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:36:28,228 INFO L93 Difference]: Finished difference Result 33 states and 34 transitions. [2020-11-29 23:36:28,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 23:36:28,230 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-11-29 23:36:28,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:36:28,242 INFO L225 Difference]: With dead ends: 33 [2020-11-29 23:36:28,242 INFO L226 Difference]: Without dead ends: 28 [2020-11-29 23:36:28,244 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-29 23:36:28,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-11-29 23:36:28,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 18. [2020-11-29 23:36:28,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-11-29 23:36:28,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2020-11-29 23:36:28,280 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 9 [2020-11-29 23:36:28,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:36:28,282 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2020-11-29 23:36:28,282 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 23:36:28,282 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2020-11-29 23:36:28,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-29 23:36:28,283 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:36:28,283 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:36:28,284 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 23:36:28,284 INFO L429 AbstractCegarLoop]: === Iteration 2 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2020-11-29 23:36:28,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:36:28,286 INFO L82 PathProgramCache]: Analyzing trace with hash -335730451, now seen corresponding path program 1 times [2020-11-29 23:36:28,286 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:36:28,286 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784892929] [2020-11-29 23:36:28,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:36:28,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:36:28,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-29 23:36:28,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:36:28,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:36:28,472 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784892929] [2020-11-29 23:36:28,472 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:36:28,472 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 23:36:28,472 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783641115] [2020-11-29 23:36:28,474 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 23:36:28,475 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:36:28,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 23:36:28,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-29 23:36:28,476 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 5 states. [2020-11-29 23:36:28,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:36:28,629 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2020-11-29 23:36:28,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-29 23:36:28,629 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-11-29 23:36:28,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:36:28,630 INFO L225 Difference]: With dead ends: 21 [2020-11-29 23:36:28,630 INFO L226 Difference]: Without dead ends: 21 [2020-11-29 23:36:28,631 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-11-29 23:36:28,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-11-29 23:36:28,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2020-11-29 23:36:28,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-11-29 23:36:28,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2020-11-29 23:36:28,635 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 9 [2020-11-29 23:36:28,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:36:28,635 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2020-11-29 23:36:28,635 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 23:36:28,635 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2020-11-29 23:36:28,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-29 23:36:28,636 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:36:28,636 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:36:28,636 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 23:36:28,636 INFO L429 AbstractCegarLoop]: === Iteration 3 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2020-11-29 23:36:28,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:36:28,637 INFO L82 PathProgramCache]: Analyzing trace with hash 1232932722, now seen corresponding path program 1 times [2020-11-29 23:36:28,639 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:36:28,640 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411315689] [2020-11-29 23:36:28,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:36:28,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:36:28,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-29 23:36:28,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:36:28,813 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:36:28,813 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411315689] [2020-11-29 23:36:28,813 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1321954941] [2020-11-29 23:36:28,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a35c3cc9-88f3-4ab9-b5e0-7ec3bb7c66d1/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 [2020-11-29 23:36:28,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:36:28,862 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-29 23:36:28,867 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:36:28,915 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-11-29 23:36:28,915 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 23:36:28,921 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 23:36:28,922 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-29 23:36:28,922 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-11-29 23:36:28,953 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:36:28,954 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 23:36:28,954 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2020-11-29 23:36:28,954 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870157650] [2020-11-29 23:36:28,955 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-29 23:36:28,955 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:36:28,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-29 23:36:28,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-29 23:36:28,956 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand 7 states. [2020-11-29 23:36:29,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:36:29,132 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2020-11-29 23:36:29,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-29 23:36:29,132 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 12 [2020-11-29 23:36:29,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:36:29,133 INFO L225 Difference]: With dead ends: 24 [2020-11-29 23:36:29,133 INFO L226 Difference]: Without dead ends: 24 [2020-11-29 23:36:29,134 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-11-29 23:36:29,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2020-11-29 23:36:29,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 23. [2020-11-29 23:36:29,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-11-29 23:36:29,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 23 transitions. [2020-11-29 23:36:29,139 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 23 transitions. Word has length 12 [2020-11-29 23:36:29,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:36:29,139 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 23 transitions. [2020-11-29 23:36:29,140 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-29 23:36:29,140 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 23 transitions. [2020-11-29 23:36:29,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-29 23:36:29,140 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:36:29,141 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:36:29,341 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-11-29 23:36:29,341 INFO L429 AbstractCegarLoop]: === Iteration 4 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2020-11-29 23:36:29,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:36:29,342 INFO L82 PathProgramCache]: Analyzing trace with hash -261628211, now seen corresponding path program 2 times [2020-11-29 23:36:29,342 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:36:29,343 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229346851] [2020-11-29 23:36:29,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:36:29,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:36:29,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-29 23:36:29,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:36:29,520 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:36:29,521 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229346851] [2020-11-29 23:36:29,521 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1710963850] [2020-11-29 23:36:29,521 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a35c3cc9-88f3-4ab9-b5e0-7ec3bb7c66d1/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 [2020-11-29 23:36:29,560 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-29 23:36:29,560 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-29 23:36:29,561 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-29 23:36:29,562 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:36:29,572 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-11-29 23:36:29,573 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 23:36:29,578 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 23:36:29,579 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-29 23:36:29,579 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-11-29 23:36:29,699 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:36:29,699 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 23:36:29,700 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 10 [2020-11-29 23:36:29,700 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295744661] [2020-11-29 23:36:29,700 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-29 23:36:29,700 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:36:29,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-29 23:36:29,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2020-11-29 23:36:29,702 INFO L87 Difference]: Start difference. First operand 23 states and 23 transitions. Second operand 7 states. [2020-11-29 23:36:29,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:36:29,785 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2020-11-29 23:36:29,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-29 23:36:29,786 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2020-11-29 23:36:29,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:36:29,787 INFO L225 Difference]: With dead ends: 23 [2020-11-29 23:36:29,787 INFO L226 Difference]: Without dead ends: 23 [2020-11-29 23:36:29,787 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2020-11-29 23:36:29,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-11-29 23:36:29,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 21. [2020-11-29 23:36:29,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-11-29 23:36:29,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2020-11-29 23:36:29,791 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 15 [2020-11-29 23:36:29,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:36:29,791 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2020-11-29 23:36:29,791 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-29 23:36:29,791 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2020-11-29 23:36:29,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-29 23:36:29,792 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:36:29,792 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:36:30,005 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 23:36:30,006 INFO L429 AbstractCegarLoop]: === Iteration 5 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2020-11-29 23:36:30,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:36:30,006 INFO L82 PathProgramCache]: Analyzing trace with hash -1517605059, now seen corresponding path program 1 times [2020-11-29 23:36:30,006 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:36:30,006 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391587276] [2020-11-29 23:36:30,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:36:30,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:36:30,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-29 23:36:30,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:36:30,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-11-29 23:36:30,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:36:30,106 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-29 23:36:30,106 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391587276] [2020-11-29 23:36:30,106 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:36:30,107 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-29 23:36:30,107 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600717838] [2020-11-29 23:36:30,107 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-29 23:36:30,107 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:36:30,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-29 23:36:30,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-11-29 23:36:30,108 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand 8 states. [2020-11-29 23:36:30,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:36:30,209 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2020-11-29 23:36:30,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-29 23:36:30,210 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 19 [2020-11-29 23:36:30,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:36:30,210 INFO L225 Difference]: With dead ends: 20 [2020-11-29 23:36:30,211 INFO L226 Difference]: Without dead ends: 20 [2020-11-29 23:36:30,211 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2020-11-29 23:36:30,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-11-29 23:36:30,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2020-11-29 23:36:30,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-11-29 23:36:30,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2020-11-29 23:36:30,214 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 19 [2020-11-29 23:36:30,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:36:30,215 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2020-11-29 23:36:30,215 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-29 23:36:30,215 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2020-11-29 23:36:30,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-29 23:36:30,216 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:36:30,216 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:36:30,216 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-29 23:36:30,216 INFO L429 AbstractCegarLoop]: === Iteration 6 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2020-11-29 23:36:30,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:36:30,217 INFO L82 PathProgramCache]: Analyzing trace with hash -1517605058, now seen corresponding path program 1 times [2020-11-29 23:36:30,217 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:36:30,217 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276444370] [2020-11-29 23:36:30,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:36:30,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:36:30,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-29 23:36:30,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:36:30,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-11-29 23:36:30,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:36:30,313 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:36:30,313 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276444370] [2020-11-29 23:36:30,314 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1068949616] [2020-11-29 23:36:30,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a35c3cc9-88f3-4ab9-b5e0-7ec3bb7c66d1/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 [2020-11-29 23:36:30,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:36:30,349 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 23:36:30,351 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:36:30,368 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:36:30,368 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 23:36:30,369 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 7 [2020-11-29 23:36:30,369 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218872916] [2020-11-29 23:36:30,369 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-29 23:36:30,369 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:36:30,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-29 23:36:30,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-11-29 23:36:30,370 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand 7 states. [2020-11-29 23:36:30,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:36:30,457 INFO L93 Difference]: Finished difference Result 25 states and 25 transitions. [2020-11-29 23:36:30,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-29 23:36:30,457 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-11-29 23:36:30,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:36:30,458 INFO L225 Difference]: With dead ends: 25 [2020-11-29 23:36:30,458 INFO L226 Difference]: Without dead ends: 25 [2020-11-29 23:36:30,459 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-29 23:36:30,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2020-11-29 23:36:30,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 23. [2020-11-29 23:36:30,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-11-29 23:36:30,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 23 transitions. [2020-11-29 23:36:30,462 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 23 transitions. Word has length 19 [2020-11-29 23:36:30,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:36:30,462 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 23 transitions. [2020-11-29 23:36:30,462 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-29 23:36:30,462 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 23 transitions. [2020-11-29 23:36:30,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-29 23:36:30,463 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:36:30,463 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:36:30,664 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 23:36:30,664 INFO L429 AbstractCegarLoop]: === Iteration 7 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2020-11-29 23:36:30,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:36:30,669 INFO L82 PathProgramCache]: Analyzing trace with hash 1135899523, now seen corresponding path program 2 times [2020-11-29 23:36:30,670 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:36:30,670 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130143450] [2020-11-29 23:36:30,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:36:30,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:36:30,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-29 23:36:30,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:36:30,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-11-29 23:36:30,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:36:30,780 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:36:30,780 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130143450] [2020-11-29 23:36:30,780 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1684585564] [2020-11-29 23:36:30,781 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a35c3cc9-88f3-4ab9-b5e0-7ec3bb7c66d1/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 [2020-11-29 23:36:30,827 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-11-29 23:36:30,828 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-29 23:36:30,829 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 16 conjunts are in the unsatisfiable core [2020-11-29 23:36:30,832 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:36:30,840 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-11-29 23:36:30,841 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 23:36:30,851 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 23:36:30,852 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-29 23:36:30,852 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-11-29 23:36:30,944 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-11-29 23:36:30,944 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 23:36:30,944 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 12 [2020-11-29 23:36:30,944 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153341428] [2020-11-29 23:36:30,945 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-29 23:36:30,945 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:36:30,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 23:36:30,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-11-29 23:36:30,946 INFO L87 Difference]: Start difference. First operand 23 states and 23 transitions. Second operand 6 states. [2020-11-29 23:36:31,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:36:31,008 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2020-11-29 23:36:31,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 23:36:31,009 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2020-11-29 23:36:31,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:36:31,009 INFO L225 Difference]: With dead ends: 22 [2020-11-29 23:36:31,009 INFO L226 Difference]: Without dead ends: 0 [2020-11-29 23:36:31,009 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2020-11-29 23:36:31,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-29 23:36:31,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-29 23:36:31,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-29 23:36:31,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 23:36:31,010 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2020-11-29 23:36:31,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:36:31,010 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 23:36:31,010 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-29 23:36:31,010 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-29 23:36:31,010 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 23:36:31,211 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 23:36:31,214 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 11:36:31 BoogieIcfgContainer [2020-11-29 23:36:31,214 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 23:36:31,215 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 23:36:31,215 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 23:36:31,215 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 23:36:31,216 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:36:27" (3/4) ... [2020-11-29 23:36:31,218 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 23:36:31,224 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2020-11-29 23:36:31,225 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2020-11-29 23:36:31,225 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure getNumbers [2020-11-29 23:36:31,232 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2020-11-29 23:36:31,233 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-11-29 23:36:31,233 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 23:36:31,260 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_a35c3cc9-88f3-4ab9-b5e0-7ec3bb7c66d1/bin/uautomizer/witness.graphml [2020-11-29 23:36:31,260 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 23:36:31,262 INFO L168 Benchmark]: Toolchain (without parser) took 4329.68 ms. Allocated memory was 90.2 MB in the beginning and 155.2 MB in the end (delta: 65.0 MB). Free memory was 55.3 MB in the beginning and 91.5 MB in the end (delta: -36.2 MB). Peak memory consumption was 27.1 MB. Max. memory is 16.1 GB. [2020-11-29 23:36:31,262 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 90.2 MB. Free memory is still 71.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:36:31,263 INFO L168 Benchmark]: CACSL2BoogieTranslator took 279.23 ms. Allocated memory is still 90.2 MB. Free memory was 55.1 MB in the beginning and 68.5 MB in the end (delta: -13.4 MB). Peak memory consumption was 7.9 MB. Max. memory is 16.1 GB. [2020-11-29 23:36:31,263 INFO L168 Benchmark]: Boogie Preprocessor took 49.35 ms. Allocated memory is still 90.2 MB. Free memory was 68.5 MB in the beginning and 67.1 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:36:31,264 INFO L168 Benchmark]: RCFGBuilder took 325.45 ms. Allocated memory is still 90.2 MB. Free memory was 67.1 MB in the beginning and 55.4 MB in the end (delta: 11.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-29 23:36:31,265 INFO L168 Benchmark]: TraceAbstraction took 3610.63 ms. Allocated memory was 90.2 MB in the beginning and 155.2 MB in the end (delta: 65.0 MB). Free memory was 54.9 MB in the beginning and 93.6 MB in the end (delta: -38.7 MB). Peak memory consumption was 29.7 MB. Max. memory is 16.1 GB. [2020-11-29 23:36:31,265 INFO L168 Benchmark]: Witness Printer took 45.58 ms. Allocated memory is still 155.2 MB. Free memory was 93.6 MB in the beginning and 91.5 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:36:31,269 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 90.2 MB. Free memory is still 71.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 279.23 ms. Allocated memory is still 90.2 MB. Free memory was 55.1 MB in the beginning and 68.5 MB in the end (delta: -13.4 MB). Peak memory consumption was 7.9 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 49.35 ms. Allocated memory is still 90.2 MB. Free memory was 68.5 MB in the beginning and 67.1 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 325.45 ms. Allocated memory is still 90.2 MB. Free memory was 67.1 MB in the beginning and 55.4 MB in the end (delta: 11.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3610.63 ms. Allocated memory was 90.2 MB in the beginning and 155.2 MB in the end (delta: 65.0 MB). Free memory was 54.9 MB in the beginning and 93.6 MB in the end (delta: -38.7 MB). Peak memory consumption was 29.7 MB. Max. memory is 16.1 GB. * Witness Printer took 45.58 ms. Allocated memory is still 155.2 MB. Free memory was 93.6 MB in the beginning and 91.5 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 14]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 14]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 6]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 6]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 5 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 25 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.5s, OverallIterations: 7, TraceHistogramMax: 3, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 80 SDtfs, 101 SDslu, 112 SDs, 0 SdLazy, 266 SolverSat, 33 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 123 GetRequests, 66 SyntacticMatches, 5 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 16 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 173 NumberOfCodeBlocks, 164 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 162 ConstructedInterpolants, 0 QuantifiedInterpolants, 18860 SizeOfPredicates, 3 NumberOfNonLiveVariables, 270 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 11 InterpolantComputations, 5 PerfectInterpolantSequences, 24/57 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...