./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-new/count_by_1_variant.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f8e1c903 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c467eeff-17fc-4312-bcd9-a6db68dcb0d0/bin/uautomizer-IVEQpCNsaX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c467eeff-17fc-4312-bcd9-a6db68dcb0d0/bin/uautomizer-IVEQpCNsaX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c467eeff-17fc-4312-bcd9-a6db68dcb0d0/bin/uautomizer-IVEQpCNsaX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c467eeff-17fc-4312-bcd9-a6db68dcb0d0/bin/uautomizer-IVEQpCNsaX/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-new/count_by_1_variant.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c467eeff-17fc-4312-bcd9-a6db68dcb0d0/bin/uautomizer-IVEQpCNsaX/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c467eeff-17fc-4312-bcd9-a6db68dcb0d0/bin/uautomizer-IVEQpCNsaX --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 8873a5afb79ec0e8798e8f1423b386b30ed09073bcea97b4a19d8bc56ced7206 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-f8e1c90 [2021-11-09 10:42:00,183 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-09 10:42:00,186 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-09 10:42:00,230 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-09 10:42:00,231 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-09 10:42:00,232 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-09 10:42:00,234 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-09 10:42:00,236 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-09 10:42:00,238 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-09 10:42:00,239 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-09 10:42:00,241 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-09 10:42:00,242 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-09 10:42:00,243 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-09 10:42:00,244 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-09 10:42:00,246 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-09 10:42:00,248 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-09 10:42:00,249 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-09 10:42:00,250 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-09 10:42:00,253 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-09 10:42:00,256 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-09 10:42:00,258 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-09 10:42:00,260 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-09 10:42:00,262 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-09 10:42:00,263 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-09 10:42:00,267 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-09 10:42:00,268 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-09 10:42:00,273 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-09 10:42:00,275 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-09 10:42:00,275 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-09 10:42:00,277 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-09 10:42:00,283 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-09 10:42:00,284 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-09 10:42:00,285 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-09 10:42:00,286 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-09 10:42:00,287 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-09 10:42:00,287 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-09 10:42:00,288 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-09 10:42:00,288 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-09 10:42:00,288 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-09 10:42:00,289 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-09 10:42:00,289 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-09 10:42:00,291 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c467eeff-17fc-4312-bcd9-a6db68dcb0d0/bin/uautomizer-IVEQpCNsaX/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-09 10:42:00,345 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-09 10:42:00,345 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-09 10:42:00,345 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-09 10:42:00,346 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-09 10:42:00,346 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-09 10:42:00,347 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-09 10:42:00,347 INFO L138 SettingsManager]: * Use SBE=true [2021-11-09 10:42:00,347 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-09 10:42:00,347 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-09 10:42:00,347 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-09 10:42:00,347 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-09 10:42:00,347 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-09 10:42:00,348 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-09 10:42:00,348 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-09 10:42:00,348 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-09 10:42:00,348 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-09 10:42:00,348 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-09 10:42:00,349 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-09 10:42:00,349 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-09 10:42:00,349 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-09 10:42:00,349 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-09 10:42:00,349 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-09 10:42:00,349 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-09 10:42:00,349 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-09 10:42:00,350 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-09 10:42:00,350 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-09 10:42:00,350 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-09 10:42:00,350 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-09 10:42:00,350 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-09 10:42:00,351 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-09 10:42:00,351 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-09 10:42:00,351 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-09 10:42:00,352 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-09 10:42:00,352 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_c467eeff-17fc-4312-bcd9-a6db68dcb0d0/bin/uautomizer-IVEQpCNsaX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c467eeff-17fc-4312-bcd9-a6db68dcb0d0/bin/uautomizer-IVEQpCNsaX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8873a5afb79ec0e8798e8f1423b386b30ed09073bcea97b4a19d8bc56ced7206 [2021-11-09 10:42:00,626 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-09 10:42:00,662 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-09 10:42:00,665 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-09 10:42:00,666 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-09 10:42:00,667 INFO L275 PluginConnector]: CDTParser initialized [2021-11-09 10:42:00,668 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c467eeff-17fc-4312-bcd9-a6db68dcb0d0/bin/uautomizer-IVEQpCNsaX/../../sv-benchmarks/c/loop-new/count_by_1_variant.i [2021-11-09 10:42:00,744 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c467eeff-17fc-4312-bcd9-a6db68dcb0d0/bin/uautomizer-IVEQpCNsaX/data/4af8b4385/d3a52bdc435a4938a53a11c6ffdb612f/FLAGa4a770170 [2021-11-09 10:42:01,158 INFO L306 CDTParser]: Found 1 translation units. [2021-11-09 10:42:01,159 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c467eeff-17fc-4312-bcd9-a6db68dcb0d0/sv-benchmarks/c/loop-new/count_by_1_variant.i [2021-11-09 10:42:01,164 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c467eeff-17fc-4312-bcd9-a6db68dcb0d0/bin/uautomizer-IVEQpCNsaX/data/4af8b4385/d3a52bdc435a4938a53a11c6ffdb612f/FLAGa4a770170 [2021-11-09 10:42:01,572 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c467eeff-17fc-4312-bcd9-a6db68dcb0d0/bin/uautomizer-IVEQpCNsaX/data/4af8b4385/d3a52bdc435a4938a53a11c6ffdb612f [2021-11-09 10:42:01,588 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-09 10:42:01,590 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-09 10:42:01,599 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-09 10:42:01,600 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-09 10:42:01,603 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-09 10:42:01,604 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 10:42:01" (1/1) ... [2021-11-09 10:42:01,605 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1392114d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:42:01, skipping insertion in model container [2021-11-09 10:42:01,605 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 10:42:01" (1/1) ... [2021-11-09 10:42:01,611 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-09 10:42:01,637 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-09 10:42:01,864 WARN L228 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_c467eeff-17fc-4312-bcd9-a6db68dcb0d0/sv-benchmarks/c/loop-new/count_by_1_variant.i[891,904] [2021-11-09 10:42:01,871 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 10:42:01,879 INFO L203 MainTranslator]: Completed pre-run [2021-11-09 10:42:01,893 WARN L228 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_c467eeff-17fc-4312-bcd9-a6db68dcb0d0/sv-benchmarks/c/loop-new/count_by_1_variant.i[891,904] [2021-11-09 10:42:01,894 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 10:42:01,908 INFO L208 MainTranslator]: Completed translation [2021-11-09 10:42:01,909 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:42:01 WrapperNode [2021-11-09 10:42:01,909 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-09 10:42:01,910 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-09 10:42:01,910 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-09 10:42:01,910 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-09 10:42:01,918 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:42:01" (1/1) ... [2021-11-09 10:42:01,926 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:42:01" (1/1) ... [2021-11-09 10:42:01,953 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-09 10:42:01,955 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-09 10:42:01,955 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-09 10:42:01,955 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-09 10:42:01,963 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:42:01" (1/1) ... [2021-11-09 10:42:01,963 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:42:01" (1/1) ... [2021-11-09 10:42:01,965 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:42:01" (1/1) ... [2021-11-09 10:42:01,965 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:42:01" (1/1) ... [2021-11-09 10:42:01,971 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:42:01" (1/1) ... [2021-11-09 10:42:01,974 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:42:01" (1/1) ... [2021-11-09 10:42:01,975 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:42:01" (1/1) ... [2021-11-09 10:42:01,977 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-09 10:42:01,978 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-09 10:42:01,978 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-09 10:42:01,978 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-09 10:42:01,983 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:42:01" (1/1) ... [2021-11-09 10:42:01,990 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 10:42:02,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c467eeff-17fc-4312-bcd9-a6db68dcb0d0/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:42:02,021 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c467eeff-17fc-4312-bcd9-a6db68dcb0d0/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 10:42:02,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c467eeff-17fc-4312-bcd9-a6db68dcb0d0/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-09 10:42:02,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-09 10:42:02,078 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-09 10:42:02,078 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-09 10:42:02,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-09 10:42:02,229 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-09 10:42:02,229 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-11-09 10:42:02,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:42:02 BoogieIcfgContainer [2021-11-09 10:42:02,231 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-09 10:42:02,232 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-09 10:42:02,232 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-09 10:42:02,235 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-09 10:42:02,236 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-09 10:42:02,236 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 09.11 10:42:01" (1/3) ... [2021-11-09 10:42:02,243 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@748d7970 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.11 10:42:02, skipping insertion in model container [2021-11-09 10:42:02,244 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-09 10:42:02,244 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:42:01" (2/3) ... [2021-11-09 10:42:02,244 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@748d7970 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.11 10:42:02, skipping insertion in model container [2021-11-09 10:42:02,244 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-09 10:42:02,245 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:42:02" (3/3) ... [2021-11-09 10:42:02,246 INFO L389 chiAutomizerObserver]: Analyzing ICFG count_by_1_variant.i [2021-11-09 10:42:02,288 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-09 10:42:02,288 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-09 10:42:02,288 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-09 10:42:02,288 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-09 10:42:02,288 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-09 10:42:02,288 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-09 10:42:02,289 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-09 10:42:02,289 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-09 10:42:02,303 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:42:02,321 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-11-09 10:42:02,322 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 10:42:02,322 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 10:42:02,328 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-09 10:42:02,328 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-09 10:42:02,328 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-09 10:42:02,329 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:42:02,330 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-11-09 10:42:02,330 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 10:42:02,330 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 10:42:02,330 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-09 10:42:02,331 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-09 10:42:02,338 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(9); 9#L-1true havoc main_#res;havoc main_#t~post3, main_~i~0;havoc main_~i~0;main_~i~0 := 0; 7#L26-2true [2021-11-09 10:42:02,338 INFO L793 eck$LassoCheckResult]: Loop: 7#L26-2true assume !!(1000000 != main_~i~0);__VERIFIER_assert_#in~cond := (if main_~i~0 <= 1000000 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 4#L18true assume !(0 == __VERIFIER_assert_~cond); 6#L18-2true main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 7#L26-2true [2021-11-09 10:42:02,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:42:02,344 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-11-09 10:42:02,354 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:42:02,354 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880435102] [2021-11-09 10:42:02,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:42:02,356 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:42:02,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 10:42:02,455 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 10:42:02,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 10:42:02,499 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 10:42:02,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:42:02,502 INFO L85 PathProgramCache]: Analyzing trace with hash 39949, now seen corresponding path program 1 times [2021-11-09 10:42:02,502 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:42:02,503 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599387359] [2021-11-09 10:42:02,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:42:02,503 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:42:02,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 10:42:02,518 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 10:42:02,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 10:42:02,527 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 10:42:02,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:42:02,529 INFO L85 PathProgramCache]: Analyzing trace with hash 28698891, now seen corresponding path program 1 times [2021-11-09 10:42:02,545 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:42:02,545 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068810473] [2021-11-09 10:42:02,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:42:02,546 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:42:02,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 10:42:02,561 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 10:42:02,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 10:42:02,582 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 10:42:02,747 INFO L210 LassoAnalysis]: Preferences: [2021-11-09 10:42:02,747 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-09 10:42:02,748 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-09 10:42:02,748 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-09 10:42:02,748 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-09 10:42:02,748 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 10:42:02,748 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-09 10:42:02,748 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-09 10:42:02,749 INFO L133 ssoRankerPreferences]: Filename of dumped script: count_by_1_variant.i_Iteration1_Loop [2021-11-09 10:42:02,749 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-09 10:42:02,749 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-09 10:42:02,766 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 10:42:02,778 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 10:42:02,789 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 10:42:02,906 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-09 10:42:02,907 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-09 10:42:02,912 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 10:42:02,912 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c467eeff-17fc-4312-bcd9-a6db68dcb0d0/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:42:02,920 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c467eeff-17fc-4312-bcd9-a6db68dcb0d0/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 10:42:02,924 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-09 10:42:02,924 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-09 10:42:02,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c467eeff-17fc-4312-bcd9-a6db68dcb0d0/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-11-09 10:42:02,964 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-09 10:42:02,965 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start___VERIFIER_assert_~cond=1, ULTIMATE.start___VERIFIER_assert_#in~cond=1} Honda state: {ULTIMATE.start___VERIFIER_assert_~cond=1, ULTIMATE.start___VERIFIER_assert_#in~cond=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-09 10:42:03,000 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c467eeff-17fc-4312-bcd9-a6db68dcb0d0/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-11-09 10:42:03,001 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 10:42:03,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c467eeff-17fc-4312-bcd9-a6db68dcb0d0/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:42:03,003 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c467eeff-17fc-4312-bcd9-a6db68dcb0d0/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 10:42:03,009 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-09 10:42:03,009 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-09 10:42:03,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c467eeff-17fc-4312-bcd9-a6db68dcb0d0/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-11-09 10:42:03,078 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c467eeff-17fc-4312-bcd9-a6db68dcb0d0/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2021-11-09 10:42:03,078 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 10:42:03,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c467eeff-17fc-4312-bcd9-a6db68dcb0d0/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:42:03,080 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c467eeff-17fc-4312-bcd9-a6db68dcb0d0/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 10:42:03,086 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-09 10:42:03,087 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-09 10:42:03,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c467eeff-17fc-4312-bcd9-a6db68dcb0d0/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-11-09 10:42:03,161 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-09 10:42:03,167 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c467eeff-17fc-4312-bcd9-a6db68dcb0d0/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-11-09 10:42:03,167 INFO L210 LassoAnalysis]: Preferences: [2021-11-09 10:42:03,167 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-09 10:42:03,168 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-09 10:42:03,168 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-09 10:42:03,168 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-09 10:42:03,168 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 10:42:03,168 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-09 10:42:03,168 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-09 10:42:03,169 INFO L133 ssoRankerPreferences]: Filename of dumped script: count_by_1_variant.i_Iteration1_Loop [2021-11-09 10:42:03,169 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-09 10:42:03,169 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-09 10:42:03,171 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 10:42:03,184 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 10:42:03,195 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 10:42:03,266 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-09 10:42:03,272 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-09 10:42:03,273 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 10:42:03,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c467eeff-17fc-4312-bcd9-a6db68dcb0d0/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:42:03,274 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c467eeff-17fc-4312-bcd9-a6db68dcb0d0/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 10:42:03,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c467eeff-17fc-4312-bcd9-a6db68dcb0d0/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-11-09 10:42:03,276 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-09 10:42:03,284 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 10:42:03,284 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-09 10:42:03,285 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 10:42:03,285 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 10:42:03,285 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 10:42:03,288 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-09 10:42:03,288 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-09 10:42:03,303 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 10:42:03,340 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c467eeff-17fc-4312-bcd9-a6db68dcb0d0/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-11-09 10:42:03,340 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 10:42:03,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c467eeff-17fc-4312-bcd9-a6db68dcb0d0/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:42:03,341 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c467eeff-17fc-4312-bcd9-a6db68dcb0d0/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 10:42:03,351 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-09 10:42:03,360 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 10:42:03,360 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-09 10:42:03,361 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 10:42:03,361 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 10:42:03,361 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 10:42:03,362 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-09 10:42:03,363 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-09 10:42:03,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c467eeff-17fc-4312-bcd9-a6db68dcb0d0/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-11-09 10:42:03,366 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-09 10:42:03,381 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-09 10:42:03,381 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-11-09 10:42:03,382 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 10:42:03,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c467eeff-17fc-4312-bcd9-a6db68dcb0d0/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:42:03,383 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c467eeff-17fc-4312-bcd9-a6db68dcb0d0/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 10:42:03,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c467eeff-17fc-4312-bcd9-a6db68dcb0d0/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-11-09 10:42:03,385 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-09 10:42:03,385 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-09 10:42:03,385 INFO L513 LassoAnalysis]: Proved termination. [2021-11-09 10:42:03,386 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 1999999 Supporting invariants [] [2021-11-09 10:42:03,408 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c467eeff-17fc-4312-bcd9-a6db68dcb0d0/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-11-09 10:42:03,410 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-09 10:42:03,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:42:03,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:42:03,472 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-09 10:42:03,474 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 10:42:03,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:42:03,496 WARN L261 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-09 10:42:03,498 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 10:42:03,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:42:03,698 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 [2021-11-09 10:42:03,699 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 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 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:42:03,775 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 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 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 26 states and 34 transitions. Complement of second has 9 states. [2021-11-09 10:42:03,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2021-11-09 10:42:03,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:42:03,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 22 transitions. [2021-11-09 10:42:03,780 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 22 transitions. Stem has 2 letters. Loop has 3 letters. [2021-11-09 10:42:03,780 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-09 10:42:03,780 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 22 transitions. Stem has 5 letters. Loop has 3 letters. [2021-11-09 10:42:03,781 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-09 10:42:03,781 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 22 transitions. Stem has 2 letters. Loop has 6 letters. [2021-11-09 10:42:03,781 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-09 10:42:03,782 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 34 transitions. [2021-11-09 10:42:03,785 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-09 10:42:03,787 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 0 states and 0 transitions. [2021-11-09 10:42:03,789 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-11-09 10:42:03,789 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-11-09 10:42:03,789 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-11-09 10:42:03,789 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 10:42:03,790 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-09 10:42:03,790 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-09 10:42:03,790 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-09 10:42:03,790 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-09 10:42:03,790 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-11-09 10:42:03,790 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-09 10:42:03,790 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-11-09 10:42:03,796 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 09.11 10:42:03 BoogieIcfgContainer [2021-11-09 10:42:03,796 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-09 10:42:03,797 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-09 10:42:03,797 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-09 10:42:03,797 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-09 10:42:03,798 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:42:02" (3/4) ... [2021-11-09 10:42:03,801 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-09 10:42:03,801 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-09 10:42:03,803 INFO L168 Benchmark]: Toolchain (without parser) took 2211.82 ms. Allocated memory was 98.6 MB in the beginning and 125.8 MB in the end (delta: 27.3 MB). Free memory was 60.1 MB in the beginning and 66.7 MB in the end (delta: -6.6 MB). Peak memory consumption was 21.4 MB. Max. memory is 16.1 GB. [2021-11-09 10:42:03,803 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 98.6 MB. Free memory is still 76.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-09 10:42:03,804 INFO L168 Benchmark]: CACSL2BoogieTranslator took 309.81 ms. Allocated memory is still 98.6 MB. Free memory was 59.9 MB in the beginning and 69.3 MB in the end (delta: -9.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-09 10:42:03,805 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.92 ms. Allocated memory is still 98.6 MB. Free memory was 69.3 MB in the beginning and 68.1 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-09 10:42:03,805 INFO L168 Benchmark]: Boogie Preprocessor took 22.14 ms. Allocated memory is still 98.6 MB. Free memory was 68.1 MB in the beginning and 67.2 MB in the end (delta: 933.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-09 10:42:03,806 INFO L168 Benchmark]: RCFGBuilder took 253.09 ms. Allocated memory is still 98.6 MB. Free memory was 66.9 MB in the beginning and 58.6 MB in the end (delta: 8.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-09 10:42:03,807 INFO L168 Benchmark]: BuchiAutomizer took 1564.65 ms. Allocated memory was 98.6 MB in the beginning and 125.8 MB in the end (delta: 27.3 MB). Free memory was 58.6 MB in the beginning and 66.7 MB in the end (delta: -8.1 MB). Peak memory consumption was 21.8 MB. Max. memory is 16.1 GB. [2021-11-09 10:42:03,807 INFO L168 Benchmark]: Witness Printer took 3.96 ms. Allocated memory is still 125.8 MB. Free memory is still 66.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-09 10:42:03,811 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 98.6 MB. Free memory is still 76.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 309.81 ms. Allocated memory is still 98.6 MB. Free memory was 59.9 MB in the beginning and 69.3 MB in the end (delta: -9.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 43.92 ms. Allocated memory is still 98.6 MB. Free memory was 69.3 MB in the beginning and 68.1 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 22.14 ms. Allocated memory is still 98.6 MB. Free memory was 68.1 MB in the beginning and 67.2 MB in the end (delta: 933.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 253.09 ms. Allocated memory is still 98.6 MB. Free memory was 66.9 MB in the beginning and 58.6 MB in the end (delta: 8.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 1564.65 ms. Allocated memory was 98.6 MB in the beginning and 125.8 MB in the end (delta: 27.3 MB). Free memory was 58.6 MB in the beginning and 66.7 MB in the end (delta: -8.1 MB). Peak memory consumption was 21.8 MB. Max. memory is 16.1 GB. * Witness Printer took 3.96 ms. Allocated memory is still 125.8 MB. Free memory is still 66.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * i + 1999999 and consists of 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.5s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 5 SDtfs, 7 SDslu, 9 SDs, 0 SdLazy, 13 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital20 mio100 ax100 hnf100 lsp69 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq171 hnf95 smp69 dnf100 smp100 tf112 neg94 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 30ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-11-09 10:42:03,861 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c467eeff-17fc-4312-bcd9-a6db68dcb0d0/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-11-09 10:42:04,068 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c467eeff-17fc-4312-bcd9-a6db68dcb0d0/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE