./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loops/sum01_bug02.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb81862-6e0d-4f84-97d8-acd47890aec7/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb81862-6e0d-4f84-97d8-acd47890aec7/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb81862-6e0d-4f84-97d8-acd47890aec7/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb81862-6e0d-4f84-97d8-acd47890aec7/bin/uautomizer-DrprNOufMa/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loops/sum01_bug02.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb81862-6e0d-4f84-97d8-acd47890aec7/bin/uautomizer-DrprNOufMa/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb81862-6e0d-4f84-97d8-acd47890aec7/bin/uautomizer-DrprNOufMa --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 3ebd5f9cdc53e2fed65e094e0a8b688f7bb2226007ad46e7ae7df20c2e5d5f11 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 23:09:01,305 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 23:09:01,307 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 23:09:01,329 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 23:09:01,329 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 23:09:01,330 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 23:09:01,331 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 23:09:01,333 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 23:09:01,335 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 23:09:01,335 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 23:09:01,336 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 23:09:01,337 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 23:09:01,338 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 23:09:01,339 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 23:09:01,340 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 23:09:01,341 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 23:09:01,342 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 23:09:01,343 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 23:09:01,344 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 23:09:01,346 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 23:09:01,348 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 23:09:01,349 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 23:09:01,350 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 23:09:01,351 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 23:09:01,353 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 23:09:01,354 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 23:09:01,354 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 23:09:01,355 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 23:09:01,355 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 23:09:01,356 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 23:09:01,356 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 23:09:01,357 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 23:09:01,358 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 23:09:01,358 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 23:09:01,359 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 23:09:01,360 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 23:09:01,360 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 23:09:01,360 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 23:09:01,360 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 23:09:01,361 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 23:09:01,362 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 23:09:01,362 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb81862-6e0d-4f84-97d8-acd47890aec7/bin/uautomizer-DrprNOufMa/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-06 23:09:01,382 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 23:09:01,382 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 23:09:01,382 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 23:09:01,382 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 23:09:01,383 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 23:09:01,383 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 23:09:01,383 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 23:09:01,383 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-06 23:09:01,384 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-06 23:09:01,384 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-06 23:09:01,384 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-06 23:09:01,384 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-06 23:09:01,384 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-06 23:09:01,384 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 23:09:01,384 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 23:09:01,384 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-06 23:09:01,385 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 23:09:01,385 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 23:09:01,385 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 23:09:01,385 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-06 23:09:01,385 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-06 23:09:01,385 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-06 23:09:01,385 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 23:09:01,385 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 23:09:01,386 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-06 23:09:01,386 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 23:09:01,386 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-06 23:09:01,386 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 23:09:01,386 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 23:09:01,386 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 23:09:01,386 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 23:09:01,386 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 23:09:01,387 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-06 23:09:01,387 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_0cb81862-6e0d-4f84-97d8-acd47890aec7/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb81862-6e0d-4f84-97d8-acd47890aec7/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3ebd5f9cdc53e2fed65e094e0a8b688f7bb2226007ad46e7ae7df20c2e5d5f11 [2021-12-06 23:09:01,592 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 23:09:01,607 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 23:09:01,608 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 23:09:01,609 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 23:09:01,610 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 23:09:01,611 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb81862-6e0d-4f84-97d8-acd47890aec7/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/loops/sum01_bug02.i [2021-12-06 23:09:01,654 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb81862-6e0d-4f84-97d8-acd47890aec7/bin/uautomizer-DrprNOufMa/data/5772ce3a1/bf89b2a63d4543adb18ac075378762f5/FLAG79ee71f6a [2021-12-06 23:09:01,999 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 23:09:01,999 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb81862-6e0d-4f84-97d8-acd47890aec7/sv-benchmarks/c/loops/sum01_bug02.i [2021-12-06 23:09:02,004 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb81862-6e0d-4f84-97d8-acd47890aec7/bin/uautomizer-DrprNOufMa/data/5772ce3a1/bf89b2a63d4543adb18ac075378762f5/FLAG79ee71f6a [2021-12-06 23:09:02,014 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb81862-6e0d-4f84-97d8-acd47890aec7/bin/uautomizer-DrprNOufMa/data/5772ce3a1/bf89b2a63d4543adb18ac075378762f5 [2021-12-06 23:09:02,016 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 23:09:02,017 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 23:09:02,018 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 23:09:02,018 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 23:09:02,021 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 23:09:02,021 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 11:09:02" (1/1) ... [2021-12-06 23:09:02,022 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@683d23db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:09:02, skipping insertion in model container [2021-12-06 23:09:02,022 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 11:09:02" (1/1) ... [2021-12-06 23:09:02,028 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 23:09:02,038 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 23:09:02,133 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_0cb81862-6e0d-4f84-97d8-acd47890aec7/sv-benchmarks/c/loops/sum01_bug02.i[812,825] [2021-12-06 23:09:02,139 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 23:09:02,145 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 23:09:02,154 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_0cb81862-6e0d-4f84-97d8-acd47890aec7/sv-benchmarks/c/loops/sum01_bug02.i[812,825] [2021-12-06 23:09:02,156 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 23:09:02,166 INFO L208 MainTranslator]: Completed translation [2021-12-06 23:09:02,166 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:09:02 WrapperNode [2021-12-06 23:09:02,167 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 23:09:02,168 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 23:09:02,168 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 23:09:02,168 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 23:09:02,173 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:09:02" (1/1) ... [2021-12-06 23:09:02,184 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:09:02" (1/1) ... [2021-12-06 23:09:02,207 INFO L137 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 34 [2021-12-06 23:09:02,207 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 23:09:02,208 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 23:09:02,208 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 23:09:02,208 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 23:09:02,215 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:09:02" (1/1) ... [2021-12-06 23:09:02,216 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:09:02" (1/1) ... [2021-12-06 23:09:02,217 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:09:02" (1/1) ... [2021-12-06 23:09:02,217 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:09:02" (1/1) ... [2021-12-06 23:09:02,219 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:09:02" (1/1) ... [2021-12-06 23:09:02,223 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:09:02" (1/1) ... [2021-12-06 23:09:02,223 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:09:02" (1/1) ... [2021-12-06 23:09:02,225 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 23:09:02,226 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 23:09:02,226 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 23:09:02,226 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 23:09:02,227 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:09:02" (1/1) ... [2021-12-06 23:09:02,234 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 23:09:02,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb81862-6e0d-4f84-97d8-acd47890aec7/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 23:09:02,253 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb81862-6e0d-4f84-97d8-acd47890aec7/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 23:09:02,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb81862-6e0d-4f84-97d8-acd47890aec7/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-12-06 23:09:02,283 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 23:09:02,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 23:09:02,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 23:09:02,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 23:09:02,329 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 23:09:02,330 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 23:09:02,394 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 23:09:02,398 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 23:09:02,398 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-06 23:09:02,400 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 11:09:02 BoogieIcfgContainer [2021-12-06 23:09:02,400 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 23:09:02,400 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-06 23:09:02,401 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-06 23:09:02,404 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-06 23:09:02,404 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 23:09:02,405 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.12 11:09:02" (1/3) ... [2021-12-06 23:09:02,406 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1a40a180 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.12 11:09:02, skipping insertion in model container [2021-12-06 23:09:02,406 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 23:09:02,406 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:09:02" (2/3) ... [2021-12-06 23:09:02,406 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1a40a180 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.12 11:09:02, skipping insertion in model container [2021-12-06 23:09:02,406 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 23:09:02,407 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 11:09:02" (3/3) ... [2021-12-06 23:09:02,408 INFO L388 chiAutomizerObserver]: Analyzing ICFG sum01_bug02.i [2021-12-06 23:09:02,444 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-06 23:09:02,444 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-06 23:09:02,444 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-06 23:09:02,444 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-06 23:09:02,444 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-06 23:09:02,444 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-06 23:09:02,444 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-06 23:09:02,444 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-06 23:09:02,455 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 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) [2021-12-06 23:09:02,471 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-06 23:09:02,472 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 23:09:02,472 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 23:09:02,476 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-06 23:09:02,476 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-12-06 23:09:02,476 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-06 23:09:02,476 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 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) [2021-12-06 23:09:02,477 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-06 23:09:02,477 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 23:09:02,477 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 23:09:02,478 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-06 23:09:02,478 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-12-06 23:09:02,483 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(14, 2); 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~post3#1, main_#t~post2#1, main_~i~0#1, main_~j~0#1, main_~n~0#1, main_~sn~0#1;havoc main_~i~0#1;main_~j~0#1 := 10;main_~n~0#1 := (if main_#t~nondet1#1 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet1#1 % 4294967296 % 4294967296 else main_#t~nondet1#1 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet1#1;main_~sn~0#1 := 0;main_~i~0#1 := 1; 13#L24-3true [2021-12-06 23:09:02,483 INFO L793 eck$LassoCheckResult]: Loop: 13#L24-3true assume !!(main_~i~0#1 <= main_~n~0#1); 7#L25true assume main_~i~0#1 < main_~j~0#1;main_~sn~0#1 := 2 + main_~sn~0#1; 11#L25-2true main_#t~post3#1 := main_~j~0#1;main_~j~0#1 := main_#t~post3#1 - 1;havoc main_#t~post3#1; 6#L24-2true main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 13#L24-3true [2021-12-06 23:09:02,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:09:02,488 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-12-06 23:09:02,497 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:09:02,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234909584] [2021-12-06 23:09:02,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:09:02,499 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:09:02,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 23:09:02,575 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 23:09:02,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 23:09:02,604 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 23:09:02,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:09:02,607 INFO L85 PathProgramCache]: Analyzing trace with hash 1234470, now seen corresponding path program 1 times [2021-12-06 23:09:02,607 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:09:02,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594160065] [2021-12-06 23:09:02,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:09:02,608 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:09:02,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 23:09:02,616 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 23:09:02,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 23:09:02,623 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 23:09:02,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:09:02,625 INFO L85 PathProgramCache]: Analyzing trace with hash 889661672, now seen corresponding path program 1 times [2021-12-06 23:09:02,625 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:09:02,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651162422] [2021-12-06 23:09:02,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:09:02,626 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:09:02,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 23:09:02,646 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 23:09:02,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 23:09:02,663 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 23:09:02,728 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 23:09:02,728 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 23:09:02,728 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 23:09:02,728 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 23:09:02,729 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-06 23:09:02,729 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 23:09:02,729 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 23:09:02,729 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 23:09:02,729 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum01_bug02.i_Iteration1_Loop [2021-12-06 23:09:02,729 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 23:09:02,729 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 23:09:02,741 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 23:09:02,746 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 23:09:02,750 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 23:09:02,759 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 23:09:02,805 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 23:09:02,805 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-06 23:09:02,807 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 23:09:02,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb81862-6e0d-4f84-97d8-acd47890aec7/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 23:09:02,808 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb81862-6e0d-4f84-97d8-acd47890aec7/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 23:09:02,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb81862-6e0d-4f84-97d8-acd47890aec7/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-12-06 23:09:02,809 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 23:09:02,809 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 23:09:02,821 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 23:09:02,821 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post2#1=0} Honda state: {ULTIMATE.start_main_#t~post2#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-06 23:09:02,853 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb81862-6e0d-4f84-97d8-acd47890aec7/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-12-06 23:09:02,853 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 23:09:02,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb81862-6e0d-4f84-97d8-acd47890aec7/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 23:09:02,854 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb81862-6e0d-4f84-97d8-acd47890aec7/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 23:09:02,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb81862-6e0d-4f84-97d8-acd47890aec7/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-12-06 23:09:02,862 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 23:09:02,862 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 23:09:02,890 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb81862-6e0d-4f84-97d8-acd47890aec7/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2021-12-06 23:09:02,891 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 23:09:02,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb81862-6e0d-4f84-97d8-acd47890aec7/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 23:09:02,892 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb81862-6e0d-4f84-97d8-acd47890aec7/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 23:09:02,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb81862-6e0d-4f84-97d8-acd47890aec7/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-12-06 23:09:02,893 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-06 23:09:02,893 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 23:09:02,921 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 23:09:02,921 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~sn~0#1=0} Honda state: {ULTIMATE.start_main_~sn~0#1=0} Generalized eigenvectors: [{ULTIMATE.start_main_~sn~0#1=4}, {ULTIMATE.start_main_~sn~0#1=0}, {ULTIMATE.start_main_~sn~0#1=-2}] Lambdas: [1, 6, 1] Nus: [0, 0] [2021-12-06 23:09:02,940 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb81862-6e0d-4f84-97d8-acd47890aec7/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2021-12-06 23:09:02,941 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 23:09:02,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb81862-6e0d-4f84-97d8-acd47890aec7/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 23:09:02,942 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb81862-6e0d-4f84-97d8-acd47890aec7/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 23:09:02,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb81862-6e0d-4f84-97d8-acd47890aec7/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-12-06 23:09:02,944 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 23:09:02,944 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 23:09:02,987 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb81862-6e0d-4f84-97d8-acd47890aec7/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2021-12-06 23:09:02,987 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 23:09:02,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb81862-6e0d-4f84-97d8-acd47890aec7/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 23:09:02,988 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb81862-6e0d-4f84-97d8-acd47890aec7/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 23:09:02,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb81862-6e0d-4f84-97d8-acd47890aec7/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-12-06 23:09:02,989 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-06 23:09:02,989 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 23:09:03,086 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-06 23:09:03,089 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb81862-6e0d-4f84-97d8-acd47890aec7/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2021-12-06 23:09:03,089 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 23:09:03,089 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 23:09:03,089 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 23:09:03,089 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 23:09:03,089 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-06 23:09:03,089 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 23:09:03,089 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 23:09:03,090 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 23:09:03,090 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum01_bug02.i_Iteration1_Loop [2021-12-06 23:09:03,090 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 23:09:03,090 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 23:09:03,091 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 23:09:03,099 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 23:09:03,102 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 23:09:03,110 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 23:09:03,141 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 23:09:03,144 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-06 23:09:03,145 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 23:09:03,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb81862-6e0d-4f84-97d8-acd47890aec7/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 23:09:03,146 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb81862-6e0d-4f84-97d8-acd47890aec7/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 23:09:03,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb81862-6e0d-4f84-97d8-acd47890aec7/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-12-06 23:09:03,147 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 [2021-12-06 23:09:03,156 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 23:09:03,157 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 23:09:03,157 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 23:09:03,157 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 23:09:03,157 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 23:09:03,159 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 23:09:03,159 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 23:09:03,160 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 23:09:03,191 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb81862-6e0d-4f84-97d8-acd47890aec7/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2021-12-06 23:09:03,192 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 23:09:03,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb81862-6e0d-4f84-97d8-acd47890aec7/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 23:09:03,192 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb81862-6e0d-4f84-97d8-acd47890aec7/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 23:09:03,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb81862-6e0d-4f84-97d8-acd47890aec7/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-12-06 23:09:03,193 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 [2021-12-06 23:09:03,201 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 23:09:03,201 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 23:09:03,201 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 23:09:03,201 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 23:09:03,201 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 23:09:03,202 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 23:09:03,202 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 23:09:03,203 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 23:09:03,223 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb81862-6e0d-4f84-97d8-acd47890aec7/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2021-12-06 23:09:03,223 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 23:09:03,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb81862-6e0d-4f84-97d8-acd47890aec7/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 23:09:03,224 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb81862-6e0d-4f84-97d8-acd47890aec7/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 23:09:03,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb81862-6e0d-4f84-97d8-acd47890aec7/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-12-06 23:09:03,225 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 [2021-12-06 23:09:03,232 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 23:09:03,232 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 23:09:03,232 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 23:09:03,233 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 23:09:03,233 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 23:09:03,234 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 23:09:03,235 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 23:09:03,237 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-06 23:09:03,241 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-12-06 23:09:03,241 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-12-06 23:09:03,242 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 23:09:03,242 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb81862-6e0d-4f84-97d8-acd47890aec7/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 23:09:03,250 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb81862-6e0d-4f84-97d8-acd47890aec7/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 23:09:03,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb81862-6e0d-4f84-97d8-acd47890aec7/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-12-06 23:09:03,252 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-06 23:09:03,252 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-06 23:09:03,252 INFO L513 LassoAnalysis]: Proved termination. [2021-12-06 23:09:03,252 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1, ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~j~0#1 - 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2021-12-06 23:09:03,271 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb81862-6e0d-4f84-97d8-acd47890aec7/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2021-12-06 23:09:03,273 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-06 23:09:03,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:09:03,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:09:03,297 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 23:09:03,298 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:09:03,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:09:03,308 WARN L261 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-06 23:09:03,309 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:09:03,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:09:03,374 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-12-06 23:09:03,375 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 13 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 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 5 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 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) [2021-12-06 23:09:03,412 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 13 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 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 5 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 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 38 states and 48 transitions. Complement of second has 7 states. [2021-12-06 23:09:03,413 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 [2021-12-06 23:09:03,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 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) [2021-12-06 23:09:03,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 28 transitions. [2021-12-06 23:09:03,419 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 2 letters. Loop has 4 letters. [2021-12-06 23:09:03,419 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 23:09:03,419 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 6 letters. Loop has 4 letters. [2021-12-06 23:09:03,420 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 23:09:03,420 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 2 letters. Loop has 8 letters. [2021-12-06 23:09:03,420 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 23:09:03,421 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38 states and 48 transitions. [2021-12-06 23:09:03,424 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-06 23:09:03,426 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38 states to 15 states and 18 transitions. [2021-12-06 23:09:03,427 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2021-12-06 23:09:03,427 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2021-12-06 23:09:03,427 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 18 transitions. [2021-12-06 23:09:03,428 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-06 23:09:03,428 INFO L681 BuchiCegarLoop]: Abstraction has 15 states and 18 transitions. [2021-12-06 23:09:03,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 18 transitions. [2021-12-06 23:09:03,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 13. [2021-12-06 23:09:03,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 12 states have internal predecessors, (16), 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) [2021-12-06 23:09:03,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 16 transitions. [2021-12-06 23:09:03,445 INFO L704 BuchiCegarLoop]: Abstraction has 13 states and 16 transitions. [2021-12-06 23:09:03,445 INFO L587 BuchiCegarLoop]: Abstraction has 13 states and 16 transitions. [2021-12-06 23:09:03,445 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-06 23:09:03,445 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 16 transitions. [2021-12-06 23:09:03,446 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-06 23:09:03,446 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 23:09:03,446 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 23:09:03,446 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-12-06 23:09:03,446 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-12-06 23:09:03,446 INFO L791 eck$LassoCheckResult]: Stem: 101#ULTIMATE.startENTRY 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(14, 2); 102#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~post3#1, main_#t~post2#1, main_~i~0#1, main_~j~0#1, main_~n~0#1, main_~sn~0#1;havoc main_~i~0#1;main_~j~0#1 := 10;main_~n~0#1 := (if main_#t~nondet1#1 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet1#1 % 4294967296 % 4294967296 else main_#t~nondet1#1 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet1#1;main_~sn~0#1 := 0;main_~i~0#1 := 1; 109#L24-3 assume !!(main_~i~0#1 <= main_~n~0#1); 106#L25 [2021-12-06 23:09:03,447 INFO L793 eck$LassoCheckResult]: Loop: 106#L25 assume !(main_~i~0#1 < main_~j~0#1); 97#L25-2 main_#t~post3#1 := main_~j~0#1;main_~j~0#1 := main_#t~post3#1 - 1;havoc main_#t~post3#1; 98#L24-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 103#L24-3 assume !!(main_~i~0#1 <= main_~n~0#1); 106#L25 [2021-12-06 23:09:03,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:09:03,447 INFO L85 PathProgramCache]: Analyzing trace with hash 29863, now seen corresponding path program 1 times [2021-12-06 23:09:03,447 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:09:03,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603226350] [2021-12-06 23:09:03,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:09:03,448 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:09:03,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 23:09:03,459 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 23:09:03,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 23:09:03,470 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 23:09:03,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:09:03,471 INFO L85 PathProgramCache]: Analyzing trace with hash 1387322, now seen corresponding path program 1 times [2021-12-06 23:09:03,471 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:09:03,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208872599] [2021-12-06 23:09:03,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:09:03,471 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:09:03,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 23:09:03,474 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 23:09:03,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 23:09:03,478 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 23:09:03,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:09:03,479 INFO L85 PathProgramCache]: Analyzing trace with hash 1809767648, now seen corresponding path program 1 times [2021-12-06 23:09:03,479 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:09:03,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474185580] [2021-12-06 23:09:03,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:09:03,479 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:09:03,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:09:03,516 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:09:03,516 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:09:03,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474185580] [2021-12-06 23:09:03,516 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474185580] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:09:03,516 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:09:03,517 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 23:09:03,517 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670167821] [2021-12-06 23:09:03,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:09:03,536 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 23:09:03,536 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 23:09:03,536 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 23:09:03,536 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 23:09:03,536 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-06 23:09:03,536 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 23:09:03,537 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 23:09:03,537 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 23:09:03,537 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum01_bug02.i_Iteration2_Loop [2021-12-06 23:09:03,537 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 23:09:03,537 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 23:09:03,538 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 23:09:03,539 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 23:09:03,545 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 23:09:03,566 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 23:09:03,566 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-06 23:09:03,566 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 23:09:03,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb81862-6e0d-4f84-97d8-acd47890aec7/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 23:09:03,567 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb81862-6e0d-4f84-97d8-acd47890aec7/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 23:09:03,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb81862-6e0d-4f84-97d8-acd47890aec7/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-12-06 23:09:03,568 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 23:09:03,568 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 23:09:03,577 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 23:09:03,577 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post3#1=0} Honda state: {ULTIMATE.start_main_#t~post3#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-06 23:09:03,598 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb81862-6e0d-4f84-97d8-acd47890aec7/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2021-12-06 23:09:03,598 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 23:09:03,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb81862-6e0d-4f84-97d8-acd47890aec7/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 23:09:03,599 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb81862-6e0d-4f84-97d8-acd47890aec7/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 23:09:03,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb81862-6e0d-4f84-97d8-acd47890aec7/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-12-06 23:09:03,619 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 23:09:03,619 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 23:09:03,646 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb81862-6e0d-4f84-97d8-acd47890aec7/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2021-12-06 23:09:03,646 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 23:09:03,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb81862-6e0d-4f84-97d8-acd47890aec7/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 23:09:03,647 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb81862-6e0d-4f84-97d8-acd47890aec7/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 23:09:03,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb81862-6e0d-4f84-97d8-acd47890aec7/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-12-06 23:09:03,648 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-06 23:09:03,648 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 23:09:03,981 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-06 23:09:03,983 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb81862-6e0d-4f84-97d8-acd47890aec7/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2021-12-06 23:09:03,983 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 23:09:03,983 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 23:09:03,983 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 23:09:03,983 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 23:09:03,983 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-06 23:09:03,983 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 23:09:03,984 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 23:09:03,984 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 23:09:03,984 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum01_bug02.i_Iteration2_Loop [2021-12-06 23:09:03,984 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 23:09:03,984 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 23:09:03,985 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 23:09:03,986 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 23:09:03,987 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 23:09:04,006 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 23:09:04,006 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-06 23:09:04,006 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 23:09:04,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb81862-6e0d-4f84-97d8-acd47890aec7/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 23:09:04,007 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb81862-6e0d-4f84-97d8-acd47890aec7/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 23:09:04,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb81862-6e0d-4f84-97d8-acd47890aec7/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-12-06 23:09:04,008 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 [2021-12-06 23:09:04,016 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 23:09:04,017 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 23:09:04,017 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 23:09:04,017 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 23:09:04,017 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 23:09:04,017 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 23:09:04,017 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 23:09:04,018 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 23:09:04,046 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb81862-6e0d-4f84-97d8-acd47890aec7/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2021-12-06 23:09:04,047 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 23:09:04,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb81862-6e0d-4f84-97d8-acd47890aec7/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 23:09:04,047 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb81862-6e0d-4f84-97d8-acd47890aec7/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 23:09:04,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb81862-6e0d-4f84-97d8-acd47890aec7/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-12-06 23:09:04,048 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 [2021-12-06 23:09:04,057 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 23:09:04,057 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 23:09:04,057 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 23:09:04,057 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 23:09:04,057 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 23:09:04,058 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 23:09:04,058 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 23:09:04,059 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 23:09:04,077 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb81862-6e0d-4f84-97d8-acd47890aec7/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2021-12-06 23:09:04,077 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 23:09:04,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb81862-6e0d-4f84-97d8-acd47890aec7/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 23:09:04,078 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb81862-6e0d-4f84-97d8-acd47890aec7/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 23:09:04,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb81862-6e0d-4f84-97d8-acd47890aec7/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-12-06 23:09:04,079 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 [2021-12-06 23:09:04,086 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 23:09:04,086 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 23:09:04,086 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 23:09:04,086 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 23:09:04,087 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 23:09:04,087 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 23:09:04,088 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 23:09:04,090 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-06 23:09:04,093 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-12-06 23:09:04,093 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-12-06 23:09:04,093 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 23:09:04,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb81862-6e0d-4f84-97d8-acd47890aec7/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 23:09:04,099 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb81862-6e0d-4f84-97d8-acd47890aec7/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 23:09:04,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb81862-6e0d-4f84-97d8-acd47890aec7/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-12-06 23:09:04,100 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-06 23:09:04,100 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-06 23:09:04,100 INFO L513 LassoAnalysis]: Proved termination. [2021-12-06 23:09:04,101 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1, ULTIMATE.start_main_~n~0#1) = -1*ULTIMATE.start_main_~i~0#1 + 1*ULTIMATE.start_main_~n~0#1 Supporting invariants [] [2021-12-06 23:09:04,116 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb81862-6e0d-4f84-97d8-acd47890aec7/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2021-12-06 23:09:04,120 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb81862-6e0d-4f84-97d8-acd47890aec7/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2021-12-06 23:09:04,120 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-06 23:09:04,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:09:04,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:09:04,133 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 23:09:04,133 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:09:04,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:09:04,140 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 23:09:04,140 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:09:04,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:09:04,156 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 [2021-12-06 23:09:04,157 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 16 transitions. cyclomatic complexity: 5 Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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) [2021-12-06 23:09:04,172 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 16 transitions. cyclomatic complexity: 5. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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 23 states and 29 transitions. Complement of second has 6 states. [2021-12-06 23:09:04,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-12-06 23:09:04,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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) [2021-12-06 23:09:04,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2021-12-06 23:09:04,174 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 3 letters. Loop has 4 letters. [2021-12-06 23:09:04,174 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 23:09:04,174 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 7 letters. Loop has 4 letters. [2021-12-06 23:09:04,174 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 23:09:04,174 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 3 letters. Loop has 8 letters. [2021-12-06 23:09:04,175 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 23:09:04,175 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 29 transitions. [2021-12-06 23:09:04,176 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-06 23:09:04,176 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 0 states and 0 transitions. [2021-12-06 23:09:04,176 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-12-06 23:09:04,176 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-12-06 23:09:04,176 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-12-06 23:09:04,176 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 23:09:04,177 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 23:09:04,177 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 23:09:04,177 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:09:04,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 23:09:04,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 23:09:04,180 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2021-12-06 23:09:04,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:09:04,182 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2021-12-06 23:09:04,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-06 23:09:04,182 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2021-12-06 23:09:04,182 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-06 23:09:04,182 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2021-12-06 23:09:04,182 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-12-06 23:09:04,183 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-12-06 23:09:04,183 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-12-06 23:09:04,183 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 23:09:04,183 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 23:09:04,183 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 23:09:04,183 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 23:09:04,183 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-06 23:09:04,183 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-12-06 23:09:04,183 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-06 23:09:04,183 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-12-06 23:09:04,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.12 11:09:04 BoogieIcfgContainer [2021-12-06 23:09:04,188 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-06 23:09:04,189 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 23:09:04,189 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 23:09:04,189 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 23:09:04,189 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 11:09:02" (3/4) ... [2021-12-06 23:09:04,191 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-06 23:09:04,191 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 23:09:04,192 INFO L158 Benchmark]: Toolchain (without parser) took 2174.62ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 61.6MB in the beginning and 86.9MB in the end (delta: -25.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 23:09:04,192 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 98.6MB. Free memory was 77.7MB in the beginning and 77.6MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 23:09:04,193 INFO L158 Benchmark]: CACSL2BoogieTranslator took 148.79ms. Allocated memory is still 98.6MB. Free memory was 61.4MB in the beginning and 51.6MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-06 23:09:04,193 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.58ms. Allocated memory is still 98.6MB. Free memory was 51.6MB in the beginning and 77.2MB in the end (delta: -25.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-06 23:09:04,194 INFO L158 Benchmark]: Boogie Preprocessor took 17.27ms. Allocated memory is still 98.6MB. Free memory was 77.2MB in the beginning and 76.4MB in the end (delta: 720.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 23:09:04,194 INFO L158 Benchmark]: RCFGBuilder took 174.18ms. Allocated memory is still 98.6MB. Free memory was 76.0MB in the beginning and 67.7MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-06 23:09:04,195 INFO L158 Benchmark]: BuchiAutomizer took 1787.87ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 67.3MB in the beginning and 86.9MB in the end (delta: -19.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 23:09:04,195 INFO L158 Benchmark]: Witness Printer took 2.39ms. Allocated memory is still 119.5MB. Free memory is still 86.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 23:09:04,198 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 98.6MB. Free memory was 77.7MB in the beginning and 77.6MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 148.79ms. Allocated memory is still 98.6MB. Free memory was 61.4MB in the beginning and 51.6MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.58ms. Allocated memory is still 98.6MB. Free memory was 51.6MB in the beginning and 77.2MB in the end (delta: -25.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.27ms. Allocated memory is still 98.6MB. Free memory was 77.2MB in the beginning and 76.4MB in the end (delta: 720.1kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 174.18ms. Allocated memory is still 98.6MB. Free memory was 76.0MB in the beginning and 67.7MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1787.87ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 67.3MB in the beginning and 86.9MB in the end (delta: -19.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Witness Printer took 2.39ms. Allocated memory is still 119.5MB. Free memory is still 86.9MB. 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 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * i + j and consists of 5 locations. One deterministic module has affine ranking function -1 * i + n and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.7s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 13 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 18 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16 mSDsluCounter, 26 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 14 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 26 IncrementalHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 12 mSDtfsCounter, 26 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital20 mio100 ax100 hnf100 lsp89 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq166 hnf93 smp100 dnf100 smp100 tf107 neg100 sie103 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 15ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.6s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-12-06 23:09:04,225 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb81862-6e0d-4f84-97d8-acd47890aec7/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2021-12-06 23:09:04,458 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb81862-6e0d-4f84-97d8-acd47890aec7/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE