./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-new/gauss_sum.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0324ae18-455b-4a72-abf9-e26276901232/bin/uautomizer-w2VwFs6gM0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0324ae18-455b-4a72-abf9-e26276901232/bin/uautomizer-w2VwFs6gM0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0324ae18-455b-4a72-abf9-e26276901232/bin/uautomizer-w2VwFs6gM0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0324ae18-455b-4a72-abf9-e26276901232/bin/uautomizer-w2VwFs6gM0/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-new/gauss_sum.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0324ae18-455b-4a72-abf9-e26276901232/bin/uautomizer-w2VwFs6gM0/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0324ae18-455b-4a72-abf9-e26276901232/bin/uautomizer-w2VwFs6gM0 --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 ac0c39e955880a6b0806ad5f8add28438e78eb47defb435342badf7c95feaa91 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 14:45:35,322 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 14:45:35,325 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 14:45:35,380 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 14:45:35,381 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 14:45:35,386 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 14:45:35,388 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 14:45:35,392 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 14:45:35,394 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 14:45:35,400 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 14:45:35,401 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 14:45:35,403 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 14:45:35,404 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 14:45:35,406 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 14:45:35,408 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 14:45:35,427 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 14:45:35,429 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 14:45:35,430 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 14:45:35,432 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 14:45:35,440 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 14:45:35,442 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 14:45:35,443 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 14:45:35,446 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 14:45:35,447 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 14:45:35,456 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 14:45:35,456 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 14:45:35,457 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 14:45:35,458 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 14:45:35,459 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 14:45:35,460 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 14:45:35,461 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 14:45:35,462 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 14:45:35,472 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 14:45:35,473 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 14:45:35,474 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 14:45:35,475 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 14:45:35,475 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 14:45:35,476 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 14:45:35,476 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 14:45:35,477 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 14:45:35,477 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 14:45:35,478 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0324ae18-455b-4a72-abf9-e26276901232/bin/uautomizer-w2VwFs6gM0/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-22 14:45:35,526 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 14:45:35,526 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 14:45:35,527 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 14:45:35,527 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 14:45:35,528 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 14:45:35,528 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 14:45:35,529 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 14:45:35,529 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-22 14:45:35,529 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-22 14:45:35,529 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-22 14:45:35,530 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-22 14:45:35,531 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-22 14:45:35,531 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-22 14:45:35,531 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 14:45:35,531 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-22 14:45:35,532 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-22 14:45:35,532 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 14:45:35,532 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-22 14:45:35,532 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 14:45:35,532 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-22 14:45:35,533 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-22 14:45:35,533 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-22 14:45:35,533 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-22 14:45:35,533 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 14:45:35,533 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-22 14:45:35,534 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 14:45:35,534 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-22 14:45:35,534 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 14:45:35,534 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 14:45:35,535 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 14:45:35,535 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-22 14:45:35,535 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 14:45:35,536 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-22 14:45:35,536 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_0324ae18-455b-4a72-abf9-e26276901232/bin/uautomizer-w2VwFs6gM0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0324ae18-455b-4a72-abf9-e26276901232/bin/uautomizer-w2VwFs6gM0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ac0c39e955880a6b0806ad5f8add28438e78eb47defb435342badf7c95feaa91 [2021-11-22 14:45:35,826 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 14:45:35,846 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 14:45:35,848 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 14:45:35,850 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 14:45:35,850 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 14:45:35,852 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0324ae18-455b-4a72-abf9-e26276901232/bin/uautomizer-w2VwFs6gM0/../../sv-benchmarks/c/loop-new/gauss_sum.i [2021-11-22 14:45:35,914 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0324ae18-455b-4a72-abf9-e26276901232/bin/uautomizer-w2VwFs6gM0/data/6fc8591ca/f3c2da495a0243c3bf052aa0f404bd2a/FLAGff76605f5 [2021-11-22 14:45:36,375 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 14:45:36,376 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0324ae18-455b-4a72-abf9-e26276901232/sv-benchmarks/c/loop-new/gauss_sum.i [2021-11-22 14:45:36,388 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0324ae18-455b-4a72-abf9-e26276901232/bin/uautomizer-w2VwFs6gM0/data/6fc8591ca/f3c2da495a0243c3bf052aa0f404bd2a/FLAGff76605f5 [2021-11-22 14:45:36,750 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0324ae18-455b-4a72-abf9-e26276901232/bin/uautomizer-w2VwFs6gM0/data/6fc8591ca/f3c2da495a0243c3bf052aa0f404bd2a [2021-11-22 14:45:36,754 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 14:45:36,756 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 14:45:36,761 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 14:45:36,761 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 14:45:36,764 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 14:45:36,765 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:45:36" (1/1) ... [2021-11-22 14:45:36,767 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@314c87f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:45:36, skipping insertion in model container [2021-11-22 14:45:36,767 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:45:36" (1/1) ... [2021-11-22 14:45:36,774 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 14:45:36,789 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 14:45:36,978 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_0324ae18-455b-4a72-abf9-e26276901232/sv-benchmarks/c/loop-new/gauss_sum.i[891,904] [2021-11-22 14:45:36,989 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 14:45:37,002 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 14:45:37,014 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_0324ae18-455b-4a72-abf9-e26276901232/sv-benchmarks/c/loop-new/gauss_sum.i[891,904] [2021-11-22 14:45:37,016 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 14:45:37,032 INFO L208 MainTranslator]: Completed translation [2021-11-22 14:45:37,033 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:45:37 WrapperNode [2021-11-22 14:45:37,033 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 14:45:37,035 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 14:45:37,035 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 14:45:37,035 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 14:45:37,042 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:45:37" (1/1) ... [2021-11-22 14:45:37,047 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:45:37" (1/1) ... [2021-11-22 14:45:37,064 INFO L137 Inliner]: procedures = 16, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 36 [2021-11-22 14:45:37,064 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 14:45:37,065 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 14:45:37,065 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 14:45:37,065 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 14:45:37,073 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:45:37" (1/1) ... [2021-11-22 14:45:37,073 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:45:37" (1/1) ... [2021-11-22 14:45:37,074 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:45:37" (1/1) ... [2021-11-22 14:45:37,075 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:45:37" (1/1) ... [2021-11-22 14:45:37,077 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:45:37" (1/1) ... [2021-11-22 14:45:37,080 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:45:37" (1/1) ... [2021-11-22 14:45:37,081 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:45:37" (1/1) ... [2021-11-22 14:45:37,083 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 14:45:37,084 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 14:45:37,084 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 14:45:37,084 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 14:45:37,085 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:45:37" (1/1) ... [2021-11-22 14:45:37,092 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 14:45:37,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0324ae18-455b-4a72-abf9-e26276901232/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 14:45:37,116 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0324ae18-455b-4a72-abf9-e26276901232/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-22 14:45:37,143 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0324ae18-455b-4a72-abf9-e26276901232/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-22 14:45:37,164 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 14:45:37,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 14:45:37,164 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 14:45:37,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 14:45:37,216 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 14:45:37,218 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 14:45:37,362 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 14:45:37,367 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 14:45:37,383 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-22 14:45:37,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:45:37 BoogieIcfgContainer [2021-11-22 14:45:37,385 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 14:45:37,386 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-22 14:45:37,386 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-22 14:45:37,389 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-22 14:45:37,390 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-22 14:45:37,390 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.11 02:45:36" (1/3) ... [2021-11-22 14:45:37,392 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@65aa67ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.11 02:45:37, skipping insertion in model container [2021-11-22 14:45:37,392 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-22 14:45:37,392 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:45:37" (2/3) ... [2021-11-22 14:45:37,392 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@65aa67ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.11 02:45:37, skipping insertion in model container [2021-11-22 14:45:37,393 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-22 14:45:37,393 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:45:37" (3/3) ... [2021-11-22 14:45:37,394 INFO L388 chiAutomizerObserver]: Analyzing ICFG gauss_sum.i [2021-11-22 14:45:37,455 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-22 14:45:37,455 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-22 14:45:37,455 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-22 14:45:37,455 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-22 14:45:37,455 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-22 14:45:37,456 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-22 14:45:37,456 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-22 14:45:37,456 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-22 14:45:37,472 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 states have internal predecessors, (15), 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) [2021-11-22 14:45:37,492 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-11-22 14:45:37,492 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-22 14:45:37,492 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-22 14:45:37,498 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-11-22 14:45:37,498 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-22 14:45:37,498 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-22 14:45:37,498 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 states have internal predecessors, (15), 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) [2021-11-22 14:45:37,501 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-11-22 14:45:37,501 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-22 14:45:37,501 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-22 14:45:37,502 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-11-22 14:45:37,502 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-22 14:45:37,509 INFO L791 eck$LassoCheckResult]: Stem: 5#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(9, 2); 11#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~post2#1, main_~n~0#1, main_~sum~0#1, main_~i~0#1;havoc main_~n~0#1;havoc main_~sum~0#1;havoc main_~i~0#1;main_~n~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 8#L27true assume !!(1 <= main_~n~0#1 && main_~n~0#1 <= 1000);main_~sum~0#1 := 0;main_~i~0#1 := 1; 6#L29-3true [2021-11-22 14:45:37,509 INFO L793 eck$LassoCheckResult]: Loop: 6#L29-3true assume !!(main_~i~0#1 <= main_~n~0#1);main_~sum~0#1 := main_~sum~0#1 + main_~i~0#1; 14#L29-2true main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 6#L29-3true [2021-11-22 14:45:37,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:45:37,517 INFO L85 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2021-11-22 14:45:37,530 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:45:37,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159975016] [2021-11-22 14:45:37,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:45:37,532 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:45:37,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 14:45:37,659 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-22 14:45:37,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 14:45:37,697 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-22 14:45:37,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:45:37,699 INFO L85 PathProgramCache]: Analyzing trace with hash 1443, now seen corresponding path program 1 times [2021-11-22 14:45:37,700 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:45:37,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676800197] [2021-11-22 14:45:37,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:45:37,702 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:45:37,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 14:45:37,716 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-22 14:45:37,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 14:45:37,734 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-22 14:45:37,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:45:37,736 INFO L85 PathProgramCache]: Analyzing trace with hash 28695942, now seen corresponding path program 1 times [2021-11-22 14:45:37,736 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:45:37,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211274589] [2021-11-22 14:45:37,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:45:37,737 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:45:37,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 14:45:37,755 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-22 14:45:37,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 14:45:37,786 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-22 14:45:37,897 INFO L210 LassoAnalysis]: Preferences: [2021-11-22 14:45:37,897 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-22 14:45:37,898 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-22 14:45:37,898 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-22 14:45:37,898 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-22 14:45:37,898 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 14:45:37,898 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-22 14:45:37,899 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-22 14:45:37,899 INFO L133 ssoRankerPreferences]: Filename of dumped script: gauss_sum.i_Iteration1_Loop [2021-11-22 14:45:37,899 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-22 14:45:37,899 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-22 14:45:37,914 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-22 14:45:37,928 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-22 14:45:37,971 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-22 14:45:37,971 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-22 14:45:37,973 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 14:45:37,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0324ae18-455b-4a72-abf9-e26276901232/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 14:45:37,975 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0324ae18-455b-4a72-abf9-e26276901232/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-22 14:45:38,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0324ae18-455b-4a72-abf9-e26276901232/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-11-22 14:45:38,004 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-22 14:45:38,004 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-22 14:45:38,067 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0324ae18-455b-4a72-abf9-e26276901232/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-11-22 14:45:38,067 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 14:45:38,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0324ae18-455b-4a72-abf9-e26276901232/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 14:45:38,069 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0324ae18-455b-4a72-abf9-e26276901232/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-22 14:45:38,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0324ae18-455b-4a72-abf9-e26276901232/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-11-22 14:45:38,075 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-22 14:45:38,075 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-22 14:45:38,272 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-22 14:45:38,278 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0324ae18-455b-4a72-abf9-e26276901232/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-11-22 14:45:38,279 INFO L210 LassoAnalysis]: Preferences: [2021-11-22 14:45:38,279 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-22 14:45:38,279 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-22 14:45:38,279 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-22 14:45:38,279 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-22 14:45:38,279 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 14:45:38,280 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-22 14:45:38,280 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-22 14:45:38,280 INFO L133 ssoRankerPreferences]: Filename of dumped script: gauss_sum.i_Iteration1_Loop [2021-11-22 14:45:38,280 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-22 14:45:38,280 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-22 14:45:38,282 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-22 14:45:38,306 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-22 14:45:38,346 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-22 14:45:38,350 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-22 14:45:38,351 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 14:45:38,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0324ae18-455b-4a72-abf9-e26276901232/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 14:45:38,355 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0324ae18-455b-4a72-abf9-e26276901232/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-22 14:45:38,363 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 [2021-11-22 14:45:38,373 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-22 14:45:38,374 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-22 14:45:38,374 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-22 14:45:38,374 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-22 14:45:38,374 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-22 14:45:38,379 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-22 14:45:38,382 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-22 14:45:38,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0324ae18-455b-4a72-abf9-e26276901232/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-11-22 14:45:38,395 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-22 14:45:38,403 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-22 14:45:38,403 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-11-22 14:45:38,405 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 14:45:38,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0324ae18-455b-4a72-abf9-e26276901232/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 14:45:38,407 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0324ae18-455b-4a72-abf9-e26276901232/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-22 14:45:38,412 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-22 14:45:38,412 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-22 14:45:38,413 INFO L513 LassoAnalysis]: Proved termination. [2021-11-22 14:45:38,413 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0#1, ULTIMATE.start_main_~i~0#1) = 2*ULTIMATE.start_main_~n~0#1 - 2*ULTIMATE.start_main_~i~0#1 + 1 Supporting invariants [] [2021-11-22 14:45:38,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0324ae18-455b-4a72-abf9-e26276901232/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-11-22 14:45:38,450 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0324ae18-455b-4a72-abf9-e26276901232/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-11-22 14:45:38,454 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-22 14:45:38,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:45:38,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:45:38,504 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-22 14:45:38,506 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 14:45:38,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:45:38,529 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-22 14:45:38,530 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 14:45:38,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:45:38,595 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 [2021-11-22 14:45:38,597 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 states have internal predecessors, (15), 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 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) [2021-11-22 14:45:38,637 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 states have internal predecessors, (15), 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 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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 31 states and 37 transitions. Complement of second has 7 states. [2021-11-22 14:45:38,638 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 [2021-11-22 14:45:38,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) [2021-11-22 14:45:38,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 24 transitions. [2021-11-22 14:45:38,645 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 3 letters. Loop has 2 letters. [2021-11-22 14:45:38,646 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-22 14:45:38,646 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 5 letters. Loop has 2 letters. [2021-11-22 14:45:38,647 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-22 14:45:38,647 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 3 letters. Loop has 4 letters. [2021-11-22 14:45:38,647 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-22 14:45:38,648 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 37 transitions. [2021-11-22 14:45:38,651 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-22 14:45:38,653 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 0 states and 0 transitions. [2021-11-22 14:45:38,654 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-11-22 14:45:38,655 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-11-22 14:45:38,655 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-11-22 14:45:38,655 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-22 14:45:38,655 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-22 14:45:38,656 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-22 14:45:38,656 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-22 14:45:38,656 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-22 14:45:38,656 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-11-22 14:45:38,656 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-22 14:45:38,657 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-11-22 14:45:38,667 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.11 02:45:38 BoogieIcfgContainer [2021-11-22 14:45:38,667 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-22 14:45:38,668 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-22 14:45:38,669 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-22 14:45:38,669 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-22 14:45:38,670 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:45:37" (3/4) ... [2021-11-22 14:45:38,674 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-22 14:45:38,674 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-22 14:45:38,676 INFO L158 Benchmark]: Toolchain (without parser) took 1918.16ms. Allocated memory was 92.3MB in the beginning and 125.8MB in the end (delta: 33.6MB). Free memory was 62.7MB in the beginning and 74.4MB in the end (delta: -11.7MB). Peak memory consumption was 23.3MB. Max. memory is 16.1GB. [2021-11-22 14:45:38,676 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 92.3MB. Free memory is still 61.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 14:45:38,679 INFO L158 Benchmark]: CACSL2BoogieTranslator took 273.01ms. Allocated memory is still 92.3MB. Free memory was 62.4MB in the beginning and 52.6MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-22 14:45:38,680 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.70ms. Allocated memory is still 92.3MB. Free memory was 52.6MB in the beginning and 51.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 14:45:38,681 INFO L158 Benchmark]: Boogie Preprocessor took 18.14ms. Allocated memory is still 92.3MB. Free memory was 51.1MB in the beginning and 50.2MB in the end (delta: 924.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 14:45:38,685 INFO L158 Benchmark]: RCFGBuilder took 301.42ms. Allocated memory is still 92.3MB. Free memory was 50.2MB in the beginning and 41.6MB in the end (delta: 8.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-22 14:45:38,686 INFO L158 Benchmark]: BuchiAutomizer took 1281.39ms. Allocated memory was 92.3MB in the beginning and 125.8MB in the end (delta: 33.6MB). Free memory was 41.5MB in the beginning and 75.4MB in the end (delta: -33.9MB). Peak memory consumption was 2.3MB. Max. memory is 16.1GB. [2021-11-22 14:45:38,687 INFO L158 Benchmark]: Witness Printer took 5.57ms. Allocated memory is still 125.8MB. Free memory was 75.4MB in the beginning and 74.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 14:45:38,695 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 92.3MB. Free memory is still 61.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 273.01ms. Allocated memory is still 92.3MB. Free memory was 62.4MB in the beginning and 52.6MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.70ms. Allocated memory is still 92.3MB. Free memory was 52.6MB in the beginning and 51.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.14ms. Allocated memory is still 92.3MB. Free memory was 51.1MB in the beginning and 50.2MB in the end (delta: 924.3kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 301.42ms. Allocated memory is still 92.3MB. Free memory was 50.2MB in the beginning and 41.6MB in the end (delta: 8.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1281.39ms. Allocated memory was 92.3MB in the beginning and 125.8MB in the end (delta: 33.6MB). Free memory was 41.5MB in the beginning and 75.4MB in the end (delta: -33.9MB). Peak memory consumption was 2.3MB. Max. memory is 16.1GB. * Witness Printer took 5.57ms. Allocated memory is still 125.8MB. Free memory was 75.4MB in the beginning and 74.4MB in the end (delta: 1.0MB). There was no memory consumed. 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 -2 * i + 2 * n + 1 and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.2s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. 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, 13 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12 mSDsluCounter, 21 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9 IncrementalHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 11 mSDtfsCounter, 9 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq179 hnf92 smp100 dnf100 smp100 tf108 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 61ms VariablesStem: 0 VariablesLoop: 5 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-11-22 14:45:38,735 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0324ae18-455b-4a72-abf9-e26276901232/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-11-22 14:45:38,945 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0324ae18-455b-4a72-abf9-e26276901232/bin/uautomizer-w2VwFs6gM0/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