./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-acceleration/array_2-1-simple.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4453055e-7cac-47bf-aeea-502d63236943/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4453055e-7cac-47bf-aeea-502d63236943/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4453055e-7cac-47bf-aeea-502d63236943/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4453055e-7cac-47bf-aeea-502d63236943/bin/uautomizer-DQz5hQGWxF/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-acceleration/array_2-1-simple.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4453055e-7cac-47bf-aeea-502d63236943/bin/uautomizer-DQz5hQGWxF/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4453055e-7cac-47bf-aeea-502d63236943/bin/uautomizer-DQz5hQGWxF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ef2ac183abfa5be888591001d2f7376a659c701d3e7fb64cad1cba56a829d8b3 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 05:46:58,486 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 05:46:58,488 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 05:46:58,522 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 05:46:58,523 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 05:46:58,524 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 05:46:58,526 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 05:46:58,528 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 05:46:58,530 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 05:46:58,532 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 05:46:58,533 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 05:46:58,534 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 05:46:58,535 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 05:46:58,536 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 05:46:58,538 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 05:46:58,539 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 05:46:58,540 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 05:46:58,541 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 05:46:58,543 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 05:46:58,546 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 05:46:58,551 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 05:46:58,553 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 05:46:58,554 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 05:46:58,555 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 05:46:58,559 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 05:46:58,560 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 05:46:58,560 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 05:46:58,561 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 05:46:58,562 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 05:46:58,567 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 05:46:58,568 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 05:46:58,569 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 05:46:58,571 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 05:46:58,572 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 05:46:58,574 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 05:46:58,574 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 05:46:58,575 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 05:46:58,575 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 05:46:58,575 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 05:46:58,576 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 05:46:58,577 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 05:46:58,578 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4453055e-7cac-47bf-aeea-502d63236943/bin/uautomizer-DQz5hQGWxF/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-20 05:46:58,606 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 05:46:58,606 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 05:46:58,606 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 05:46:58,607 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 05:46:58,608 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 05:46:58,608 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 05:46:58,608 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 05:46:58,609 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-20 05:46:58,609 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-20 05:46:58,609 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-20 05:46:58,609 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-20 05:46:58,609 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-20 05:46:58,610 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-20 05:46:58,610 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 05:46:58,610 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 05:46:58,610 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-20 05:46:58,611 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 05:46:58,611 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 05:46:58,611 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 05:46:58,611 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-20 05:46:58,612 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-20 05:46:58,612 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-20 05:46:58,612 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 05:46:58,612 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 05:46:58,613 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-20 05:46:58,613 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 05:46:58,613 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-20 05:46:58,613 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 05:46:58,614 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 05:46:58,614 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 05:46:58,614 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 05:46:58,614 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 05:46:58,615 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-20 05:46:58,616 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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_worker_vcloud-master_on_vcloud-master/run_dir_4453055e-7cac-47bf-aeea-502d63236943/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4453055e-7cac-47bf-aeea-502d63236943/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ef2ac183abfa5be888591001d2f7376a659c701d3e7fb64cad1cba56a829d8b3 [2021-11-20 05:46:58,887 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 05:46:58,911 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 05:46:58,914 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 05:46:58,915 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 05:46:58,916 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 05:46:58,918 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4453055e-7cac-47bf-aeea-502d63236943/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/loop-acceleration/array_2-1-simple.i [2021-11-20 05:46:58,994 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4453055e-7cac-47bf-aeea-502d63236943/bin/uautomizer-DQz5hQGWxF/data/0fe7edd5d/eeef72b201264dacaf4e98e9fb528597/FLAG56f182823 [2021-11-20 05:46:59,490 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 05:46:59,491 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4453055e-7cac-47bf-aeea-502d63236943/sv-benchmarks/c/loop-acceleration/array_2-1-simple.i [2021-11-20 05:46:59,496 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4453055e-7cac-47bf-aeea-502d63236943/bin/uautomizer-DQz5hQGWxF/data/0fe7edd5d/eeef72b201264dacaf4e98e9fb528597/FLAG56f182823 [2021-11-20 05:46:59,868 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4453055e-7cac-47bf-aeea-502d63236943/bin/uautomizer-DQz5hQGWxF/data/0fe7edd5d/eeef72b201264dacaf4e98e9fb528597 [2021-11-20 05:46:59,872 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 05:46:59,874 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 05:46:59,876 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 05:46:59,876 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 05:46:59,881 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 05:46:59,881 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:46:59" (1/1) ... [2021-11-20 05:46:59,883 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d4e7981 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:46:59, skipping insertion in model container [2021-11-20 05:46:59,883 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:46:59" (1/1) ... [2021-11-20 05:46:59,903 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 05:46:59,920 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 05:47:00,138 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4453055e-7cac-47bf-aeea-502d63236943/sv-benchmarks/c/loop-acceleration/array_2-1-simple.i[809,822] [2021-11-20 05:47:00,157 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 05:47:00,165 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 05:47:00,178 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4453055e-7cac-47bf-aeea-502d63236943/sv-benchmarks/c/loop-acceleration/array_2-1-simple.i[809,822] [2021-11-20 05:47:00,185 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 05:47:00,202 INFO L208 MainTranslator]: Completed translation [2021-11-20 05:47:00,203 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:47:00 WrapperNode [2021-11-20 05:47:00,203 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 05:47:00,204 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 05:47:00,204 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 05:47:00,205 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 05:47:00,213 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:47:00" (1/1) ... [2021-11-20 05:47:00,221 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:47:00" (1/1) ... [2021-11-20 05:47:00,239 INFO L137 Inliner]: procedures = 16, calls = 17, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 44 [2021-11-20 05:47:00,240 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 05:47:00,241 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 05:47:00,241 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 05:47:00,241 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 05:47:00,251 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:47:00" (1/1) ... [2021-11-20 05:47:00,251 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:47:00" (1/1) ... [2021-11-20 05:47:00,254 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:47:00" (1/1) ... [2021-11-20 05:47:00,254 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:47:00" (1/1) ... [2021-11-20 05:47:00,261 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:47:00" (1/1) ... [2021-11-20 05:47:00,265 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:47:00" (1/1) ... [2021-11-20 05:47:00,266 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:47:00" (1/1) ... [2021-11-20 05:47:00,268 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 05:47:00,273 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 05:47:00,274 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 05:47:00,274 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 05:47:00,275 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:47:00" (1/1) ... [2021-11-20 05:47:00,285 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:47:00,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4453055e-7cac-47bf-aeea-502d63236943/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:47:00,325 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4453055e-7cac-47bf-aeea-502d63236943/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:47:00,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4453055e-7cac-47bf-aeea-502d63236943/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-20 05:47:00,381 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 05:47:00,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 05:47:00,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-20 05:47:00,382 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 05:47:00,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 05:47:00,383 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 05:47:00,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 05:47:00,383 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 05:47:00,384 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 05:47:00,487 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 05:47:00,490 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 05:47:00,673 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 05:47:00,692 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 05:47:00,693 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-20 05:47:00,695 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:47:00 BoogieIcfgContainer [2021-11-20 05:47:00,695 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 05:47:00,696 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-20 05:47:00,697 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-20 05:47:00,713 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-20 05:47:00,714 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 05:47:00,715 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 05:46:59" (1/3) ... [2021-11-20 05:47:00,716 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2ff09cf0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 05:47:00, skipping insertion in model container [2021-11-20 05:47:00,717 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 05:47:00,717 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:47:00" (2/3) ... [2021-11-20 05:47:00,717 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2ff09cf0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 05:47:00, skipping insertion in model container [2021-11-20 05:47:00,718 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 05:47:00,718 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:47:00" (3/3) ... [2021-11-20 05:47:00,719 INFO L388 chiAutomizerObserver]: Analyzing ICFG array_2-1-simple.i [2021-11-20 05:47:00,777 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-20 05:47:00,778 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-20 05:47:00,778 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-20 05:47:00,778 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-20 05:47:00,778 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-20 05:47:00,779 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-20 05:47:00,779 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-20 05:47:00,779 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-20 05:47:00,794 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:47:00,814 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-11-20 05:47:00,815 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 05:47:00,815 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 05:47:00,822 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-20 05:47:00,822 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-20 05:47:00,823 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-20 05:47:00,823 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:47:00,825 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-11-20 05:47:00,826 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 05:47:00,826 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 05:47:00,826 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-20 05:47:00,827 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-20 05:47:00,835 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(12, 2); 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~mem2#1, main_#t~post1#1, main_#t~mem3#1, main_#t~mem4#1, main_~#A~0#1.base, main_~#A~0#1.offset, main_~#B~0#1.base, main_~#B~0#1.offset, main_~i~0#1, main_~tmp~0#1;call main_~#A~0#1.base, main_~#A~0#1.offset := #Ultimate.allocOnStack(8192);#memory_int := ~initToZeroAtPointerBaseAddress~int(#memory_int, main_~#A~0#1.base);call write~unchecked~int(0, main_~#A~0#1.base, main_~#A~0#1.offset, 4);call main_~#B~0#1.base, main_~#B~0#1.offset := #Ultimate.allocOnStack(8192);#memory_int := ~initToZeroAtPointerBaseAddress~int(#memory_int, main_~#B~0#1.base);call write~unchecked~int(0, main_~#B~0#1.base, main_~#B~0#1.offset, 4);havoc main_~i~0#1;havoc main_~tmp~0#1;main_~i~0#1 := 0; 8#L24-3true [2021-11-20 05:47:00,836 INFO L793 eck$LassoCheckResult]: Loop: 8#L24-3true assume !!(main_~i~0#1 < 2048);call main_#t~mem2#1 := read~int(main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4);main_~tmp~0#1 := main_#t~mem2#1;havoc main_#t~mem2#1;call write~int(main_~tmp~0#1, main_~#B~0#1.base, main_~#B~0#1.offset + 4 * main_~i~0#1, 4); 5#L24-2true main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 8#L24-3true [2021-11-20 05:47:00,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:47:00,842 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-11-20 05:47:00,853 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:47:00,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856843838] [2021-11-20 05:47:00,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:47:00,857 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:47:00,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:47:00,976 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 05:47:00,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:47:01,019 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 05:47:01,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:47:01,023 INFO L85 PathProgramCache]: Analyzing trace with hash 1283, now seen corresponding path program 1 times [2021-11-20 05:47:01,023 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:47:01,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734363266] [2021-11-20 05:47:01,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:47:01,025 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:47:01,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:47:01,040 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 05:47:01,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:47:01,057 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 05:47:01,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:47:01,060 INFO L85 PathProgramCache]: Analyzing trace with hash 925765, now seen corresponding path program 1 times [2021-11-20 05:47:01,060 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:47:01,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27213141] [2021-11-20 05:47:01,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:47:01,061 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:47:01,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:47:01,130 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 05:47:01,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:47:01,211 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 05:47:01,884 INFO L210 LassoAnalysis]: Preferences: [2021-11-20 05:47:01,885 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-20 05:47:01,885 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-20 05:47:01,886 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-20 05:47:01,886 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-20 05:47:01,886 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:47:01,886 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-20 05:47:01,887 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-20 05:47:01,887 INFO L133 ssoRankerPreferences]: Filename of dumped script: array_2-1-simple.i_Iteration1_Lasso [2021-11-20 05:47:01,887 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-20 05:47:01,887 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-20 05:47:01,913 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 05:47:02,254 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 05:47:02,257 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 05:47:02,261 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 05:47:02,265 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 05:47:02,269 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 05:47:02,273 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 05:47:02,277 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 05:47:02,628 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-20 05:47:02,637 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-20 05:47:02,639 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:47:02,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4453055e-7cac-47bf-aeea-502d63236943/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:47:02,642 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4453055e-7cac-47bf-aeea-502d63236943/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:47:02,649 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 05:47:02,661 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:47:02,662 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:47:02,662 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:47:02,662 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:47:02,672 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 05:47:02,672 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 05:47:02,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4453055e-7cac-47bf-aeea-502d63236943/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-11-20 05:47:02,694 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 05:47:02,743 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4453055e-7cac-47bf-aeea-502d63236943/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-11-20 05:47:02,743 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:47:02,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4453055e-7cac-47bf-aeea-502d63236943/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:47:02,746 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4453055e-7cac-47bf-aeea-502d63236943/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:47:02,760 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 05:47:02,771 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:47:02,771 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:47:02,771 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:47:02,771 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:47:02,777 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 05:47:02,777 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 05:47:02,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4453055e-7cac-47bf-aeea-502d63236943/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-11-20 05:47:02,798 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 05:47:02,823 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4453055e-7cac-47bf-aeea-502d63236943/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2021-11-20 05:47:02,823 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:47:02,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4453055e-7cac-47bf-aeea-502d63236943/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:47:02,825 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4453055e-7cac-47bf-aeea-502d63236943/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:47:02,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4453055e-7cac-47bf-aeea-502d63236943/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-11-20 05:47:02,828 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 05:47:02,837 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:47:02,837 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:47:02,837 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:47:02,837 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:47:02,842 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 05:47:02,842 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 05:47:02,870 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 05:47:02,915 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4453055e-7cac-47bf-aeea-502d63236943/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-11-20 05:47:02,916 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:47:02,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4453055e-7cac-47bf-aeea-502d63236943/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:47:02,917 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4453055e-7cac-47bf-aeea-502d63236943/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:47:02,928 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 05:47:02,939 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:47:02,940 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:47:02,940 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:47:02,940 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:47:02,951 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 05:47:02,951 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 05:47:02,954 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4453055e-7cac-47bf-aeea-502d63236943/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-11-20 05:47:02,974 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-20 05:47:03,039 INFO L443 ModelExtractionUtils]: Simplification made 17 calls to the SMT solver. [2021-11-20 05:47:03,040 INFO L444 ModelExtractionUtils]: 0 out of 19 variables were initially zero. Simplification set additionally 16 variables to zero. [2021-11-20 05:47:03,042 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:47:03,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4453055e-7cac-47bf-aeea-502d63236943/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:47:03,049 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4453055e-7cac-47bf-aeea-502d63236943/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:47:03,067 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-20 05:47:03,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4453055e-7cac-47bf-aeea-502d63236943/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-11-20 05:47:03,100 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-11-20 05:47:03,100 INFO L513 LassoAnalysis]: Proved termination. [2021-11-20 05:47:03,101 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_~#B~0#1.base)_1, ULTIMATE.start_main_~i~0#1) = 4095*v_rep(select #length ULTIMATE.start_main_~#B~0#1.base)_1 - 8*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2021-11-20 05:47:03,147 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4453055e-7cac-47bf-aeea-502d63236943/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-11-20 05:47:03,227 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2021-11-20 05:47:03,250 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4453055e-7cac-47bf-aeea-502d63236943/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2021-11-20 05:47:03,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:47:03,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:03,294 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 05:47:03,295 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:47:03,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:47:03,325 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-20 05:47:03,326 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:47:03,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:47:03,433 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-11-20 05:47:03,434 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:47:03,488 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 24 states and 30 transitions. Complement of second has 8 states. [2021-11-20 05:47:03,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-11-20 05:47:03,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:47:03,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 17 transitions. [2021-11-20 05:47:03,497 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 2 letters. Loop has 2 letters. [2021-11-20 05:47:03,498 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 05:47:03,498 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 4 letters. Loop has 2 letters. [2021-11-20 05:47:03,498 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 05:47:03,498 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 2 letters. Loop has 4 letters. [2021-11-20 05:47:03,499 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 05:47:03,500 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 30 transitions. [2021-11-20 05:47:03,503 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-20 05:47:03,506 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 0 states and 0 transitions. [2021-11-20 05:47:03,507 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-11-20 05:47:03,507 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-11-20 05:47:03,508 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-11-20 05:47:03,508 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:47:03,508 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-20 05:47:03,509 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-20 05:47:03,509 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-20 05:47:03,509 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-20 05:47:03,509 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-11-20 05:47:03,509 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-20 05:47:03,510 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-11-20 05:47:03,518 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 05:47:03 BoogieIcfgContainer [2021-11-20 05:47:03,518 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-20 05:47:03,519 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 05:47:03,519 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 05:47:03,519 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 05:47:03,520 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:47:00" (3/4) ... [2021-11-20 05:47:03,523 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-20 05:47:03,524 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 05:47:03,525 INFO L158 Benchmark]: Toolchain (without parser) took 3650.85ms. Allocated memory was 125.8MB in the beginning and 169.9MB in the end (delta: 44.0MB). Free memory was 96.6MB in the beginning and 130.9MB in the end (delta: -34.3MB). Peak memory consumption was 10.2MB. Max. memory is 16.1GB. [2021-11-20 05:47:03,526 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 125.8MB. Free memory is still 79.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 05:47:03,527 INFO L158 Benchmark]: CACSL2BoogieTranslator took 327.58ms. Allocated memory is still 125.8MB. Free memory was 96.6MB in the beginning and 99.5MB in the end (delta: -2.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-20 05:47:03,528 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.90ms. Allocated memory is still 125.8MB. Free memory was 99.5MB in the beginning and 98.2MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 05:47:03,528 INFO L158 Benchmark]: Boogie Preprocessor took 27.76ms. Allocated memory is still 125.8MB. Free memory was 98.2MB in the beginning and 97.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 05:47:03,529 INFO L158 Benchmark]: RCFGBuilder took 421.85ms. Allocated memory is still 125.8MB. Free memory was 96.8MB in the beginning and 87.4MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-20 05:47:03,531 INFO L158 Benchmark]: BuchiAutomizer took 2821.77ms. Allocated memory was 125.8MB in the beginning and 169.9MB in the end (delta: 44.0MB). Free memory was 87.2MB in the beginning and 132.0MB in the end (delta: -44.7MB). Peak memory consumption was 1.4MB. Max. memory is 16.1GB. [2021-11-20 05:47:03,532 INFO L158 Benchmark]: Witness Printer took 5.08ms. Allocated memory is still 169.9MB. Free memory was 132.0MB in the beginning and 130.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 05:47:03,544 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 125.8MB. Free memory is still 79.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 327.58ms. Allocated memory is still 125.8MB. Free memory was 96.6MB in the beginning and 99.5MB in the end (delta: -2.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.90ms. Allocated memory is still 125.8MB. Free memory was 99.5MB in the beginning and 98.2MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 27.76ms. Allocated memory is still 125.8MB. Free memory was 98.2MB in the beginning and 97.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 421.85ms. Allocated memory is still 125.8MB. Free memory was 96.8MB in the beginning and 87.4MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 2821.77ms. Allocated memory was 125.8MB in the beginning and 169.9MB in the end (delta: 44.0MB). Free memory was 87.2MB in the beginning and 132.0MB in the end (delta: -44.7MB). Peak memory consumption was 1.4MB. Max. memory is 16.1GB. * Witness Printer took 5.08ms. Allocated memory is still 169.9MB. Free memory was 132.0MB in the beginning and 130.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -8 * i + 4095 * unknown-#length-unknown[B] and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.7s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 2.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 12 IncrementalHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 4 mSDtfsCounter, 12 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital191 mio100 ax100 hnf100 lsp96 ukn66 mio100 lsp41 div100 bol100 ite100 ukn100 eq158 hnf91 smp100 dnf100 smp100 tf100 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 56ms VariablesStem: 2 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-11-20 05:47:03,626 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4453055e-7cac-47bf-aeea-502d63236943/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE