./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-lit/hhk2008.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a47b8b4-b883-4681-add2-56cf190f8f34/bin/uautomizer-AkOaLMaTGY/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a47b8b4-b883-4681-add2-56cf190f8f34/bin/uautomizer-AkOaLMaTGY/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a47b8b4-b883-4681-add2-56cf190f8f34/bin/uautomizer-AkOaLMaTGY/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a47b8b4-b883-4681-add2-56cf190f8f34/bin/uautomizer-AkOaLMaTGY/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-lit/hhk2008.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a47b8b4-b883-4681-add2-56cf190f8f34/bin/uautomizer-AkOaLMaTGY/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a47b8b4-b883-4681-add2-56cf190f8f34/bin/uautomizer-AkOaLMaTGY --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 71a7284f447428ecffa93ec68ad1c6e5855fc63e0841f7f396bb4f1c281c6b13 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 08:24:18,140 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 08:24:18,142 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 08:24:18,177 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 08:24:18,177 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 08:24:18,179 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 08:24:18,180 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 08:24:18,182 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 08:24:18,184 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 08:24:18,186 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 08:24:18,187 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 08:24:18,188 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 08:24:18,189 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 08:24:18,190 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 08:24:18,192 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 08:24:18,193 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 08:24:18,194 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 08:24:18,195 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 08:24:18,198 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 08:24:18,200 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 08:24:18,202 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 08:24:18,204 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 08:24:18,205 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 08:24:18,206 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 08:24:18,210 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 08:24:18,210 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 08:24:18,211 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 08:24:18,212 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 08:24:18,212 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 08:24:18,214 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 08:24:18,214 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 08:24:18,215 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 08:24:18,216 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 08:24:18,217 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 08:24:18,222 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 08:24:18,222 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 08:24:18,223 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 08:24:18,223 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 08:24:18,223 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 08:24:18,225 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 08:24:18,226 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 08:24:18,226 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a47b8b4-b883-4681-add2-56cf190f8f34/bin/uautomizer-AkOaLMaTGY/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-07 08:24:18,269 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 08:24:18,278 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 08:24:18,278 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 08:24:18,279 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 08:24:18,280 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 08:24:18,281 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 08:24:18,281 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 08:24:18,281 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-07 08:24:18,281 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-07 08:24:18,282 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-07 08:24:18,283 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-07 08:24:18,283 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-07 08:24:18,283 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-07 08:24:18,283 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 08:24:18,284 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 08:24:18,284 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-07 08:24:18,284 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 08:24:18,284 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 08:24:18,284 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 08:24:18,285 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-07 08:24:18,285 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-07 08:24:18,285 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-07 08:24:18,285 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 08:24:18,285 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 08:24:18,286 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-07 08:24:18,286 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 08:24:18,287 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-07 08:24:18,288 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 08:24:18,288 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 08:24:18,288 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 08:24:18,288 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 08:24:18,289 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 08:24:18,290 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-07 08:24:18,290 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_9a47b8b4-b883-4681-add2-56cf190f8f34/bin/uautomizer-AkOaLMaTGY/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a47b8b4-b883-4681-add2-56cf190f8f34/bin/uautomizer-AkOaLMaTGY Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 71a7284f447428ecffa93ec68ad1c6e5855fc63e0841f7f396bb4f1c281c6b13 [2021-11-07 08:24:18,650 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 08:24:18,681 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 08:24:18,684 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 08:24:18,685 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 08:24:18,686 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 08:24:18,687 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a47b8b4-b883-4681-add2-56cf190f8f34/bin/uautomizer-AkOaLMaTGY/../../sv-benchmarks/c/loop-lit/hhk2008.i [2021-11-07 08:24:18,762 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a47b8b4-b883-4681-add2-56cf190f8f34/bin/uautomizer-AkOaLMaTGY/data/e58c4d68b/78a2106998fb49cb97a36683e43cfc3d/FLAGfc7e9e62c [2021-11-07 08:24:19,231 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 08:24:19,233 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a47b8b4-b883-4681-add2-56cf190f8f34/sv-benchmarks/c/loop-lit/hhk2008.i [2021-11-07 08:24:19,247 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a47b8b4-b883-4681-add2-56cf190f8f34/bin/uautomizer-AkOaLMaTGY/data/e58c4d68b/78a2106998fb49cb97a36683e43cfc3d/FLAGfc7e9e62c [2021-11-07 08:24:19,589 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a47b8b4-b883-4681-add2-56cf190f8f34/bin/uautomizer-AkOaLMaTGY/data/e58c4d68b/78a2106998fb49cb97a36683e43cfc3d [2021-11-07 08:24:19,592 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 08:24:19,593 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 08:24:19,595 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 08:24:19,595 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 08:24:19,611 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 08:24:19,612 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:24:19" (1/1) ... [2021-11-07 08:24:19,613 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51b5f9c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:24:19, skipping insertion in model container [2021-11-07 08:24:19,613 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:24:19" (1/1) ... [2021-11-07 08:24:19,621 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 08:24:19,642 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 08:24:19,798 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_9a47b8b4-b883-4681-add2-56cf190f8f34/sv-benchmarks/c/loop-lit/hhk2008.i[895,908] [2021-11-07 08:24:19,805 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 08:24:19,814 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 08:24:19,824 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_9a47b8b4-b883-4681-add2-56cf190f8f34/sv-benchmarks/c/loop-lit/hhk2008.i[895,908] [2021-11-07 08:24:19,828 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 08:24:19,840 INFO L208 MainTranslator]: Completed translation [2021-11-07 08:24:19,840 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:24:19 WrapperNode [2021-11-07 08:24:19,840 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 08:24:19,841 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 08:24:19,841 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 08:24:19,841 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 08:24:19,847 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:24:19" (1/1) ... [2021-11-07 08:24:19,853 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:24:19" (1/1) ... [2021-11-07 08:24:19,870 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 08:24:19,871 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 08:24:19,871 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 08:24:19,871 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 08:24:19,879 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:24:19" (1/1) ... [2021-11-07 08:24:19,879 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:24:19" (1/1) ... [2021-11-07 08:24:19,880 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:24:19" (1/1) ... [2021-11-07 08:24:19,881 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:24:19" (1/1) ... [2021-11-07 08:24:19,884 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:24:19" (1/1) ... [2021-11-07 08:24:19,887 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:24:19" (1/1) ... [2021-11-07 08:24:19,888 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:24:19" (1/1) ... [2021-11-07 08:24:19,890 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 08:24:19,891 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 08:24:19,891 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 08:24:19,891 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 08:24:19,892 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:24:19" (1/1) ... [2021-11-07 08:24:19,899 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:24:19,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a47b8b4-b883-4681-add2-56cf190f8f34/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:24:19,931 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a47b8b4-b883-4681-add2-56cf190f8f34/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:24:19,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a47b8b4-b883-4681-add2-56cf190f8f34/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-07 08:24:19,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 08:24:19,979 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 08:24:19,980 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 08:24:19,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 08:24:20,157 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 08:24:20,158 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-11-07 08:24:20,159 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:24:20 BoogieIcfgContainer [2021-11-07 08:24:20,160 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 08:24:20,160 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-07 08:24:20,161 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-07 08:24:20,164 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-07 08:24:20,164 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-07 08:24:20,165 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.11 08:24:19" (1/3) ... [2021-11-07 08:24:20,166 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@665850f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.11 08:24:20, skipping insertion in model container [2021-11-07 08:24:20,166 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-07 08:24:20,167 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:24:19" (2/3) ... [2021-11-07 08:24:20,167 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@665850f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.11 08:24:20, skipping insertion in model container [2021-11-07 08:24:20,167 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-07 08:24:20,167 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:24:20" (3/3) ... [2021-11-07 08:24:20,169 INFO L389 chiAutomizerObserver]: Analyzing ICFG hhk2008.i [2021-11-07 08:24:20,216 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-07 08:24:20,216 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-07 08:24:20,216 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-07 08:24:20,216 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-07 08:24:20,216 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-07 08:24:20,216 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-07 08:24:20,217 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-07 08:24:20,217 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-07 08:24:20,230 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 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) [2021-11-07 08:24:20,248 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-11-07 08:24:20,248 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-07 08:24:20,248 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-07 08:24:20,253 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-11-07 08:24:20,254 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-11-07 08:24:20,254 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-07 08:24:20,254 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 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) [2021-11-07 08:24:20,255 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-11-07 08:24:20,256 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-07 08:24:20,256 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-07 08:24:20,256 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-11-07 08:24:20,256 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-11-07 08:24:20,263 INFO L791 eck$LassoCheckResult]: Stem: 6#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); 11#L-1true havoc main_#res;havoc main_#t~nondet3, main_#t~nondet4, main_~a~0, main_~b~0, main_~res~0, main_~cnt~0;main_~a~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~b~0 := main_#t~nondet4;havoc main_#t~nondet4;havoc main_~res~0;havoc main_~cnt~0; 9#L28true assume !!(main_~a~0 <= 1000000); 10#L29true assume !!(0 <= main_~b~0 && main_~b~0 <= 1000000);main_~res~0 := main_~a~0;main_~cnt~0 := main_~b~0; 3#L32-2true [2021-11-07 08:24:20,263 INFO L793 eck$LassoCheckResult]: Loop: 3#L32-2true assume !!(main_~cnt~0 > 0);main_~cnt~0 := main_~cnt~0 - 1;main_~res~0 := 1 + main_~res~0; 3#L32-2true [2021-11-07 08:24:20,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:24:20,269 INFO L85 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 1 times [2021-11-07 08:24:20,277 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:24:20,278 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129253646] [2021-11-07 08:24:20,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:24:20,279 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:24:20,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:24:20,394 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 08:24:20,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:24:20,427 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 08:24:20,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:24:20,430 INFO L85 PathProgramCache]: Analyzing trace with hash 52, now seen corresponding path program 1 times [2021-11-07 08:24:20,431 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:24:20,431 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082742904] [2021-11-07 08:24:20,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:24:20,431 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:24:20,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:24:20,453 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 08:24:20,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:24:20,461 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 08:24:20,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:24:20,466 INFO L85 PathProgramCache]: Analyzing trace with hash 28695853, now seen corresponding path program 1 times [2021-11-07 08:24:20,466 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:24:20,466 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693578059] [2021-11-07 08:24:20,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:24:20,467 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:24:20,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:24:20,496 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 08:24:20,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:24:20,532 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 08:24:20,648 INFO L210 LassoAnalysis]: Preferences: [2021-11-07 08:24:20,648 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-07 08:24:20,649 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-07 08:24:20,649 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-07 08:24:20,649 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-07 08:24:20,649 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:24:20,649 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-07 08:24:20,650 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-07 08:24:20,650 INFO L133 ssoRankerPreferences]: Filename of dumped script: hhk2008.i_Iteration1_Loop [2021-11-07 08:24:20,650 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-07 08:24:20,650 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-07 08:24:20,678 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:24:20,701 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:24:20,764 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-07 08:24:20,765 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-07 08:24:20,767 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:24:20,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a47b8b4-b883-4681-add2-56cf190f8f34/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:24:20,775 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a47b8b4-b883-4681-add2-56cf190f8f34/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:24:20,782 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-07 08:24:20,782 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 08:24:20,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a47b8b4-b883-4681-add2-56cf190f8f34/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-11-07 08:24:20,849 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a47b8b4-b883-4681-add2-56cf190f8f34/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-11-07 08:24:20,850 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:24:20,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a47b8b4-b883-4681-add2-56cf190f8f34/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:24:20,852 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a47b8b4-b883-4681-add2-56cf190f8f34/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:24:20,858 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-07 08:24:20,858 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 08:24:20,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a47b8b4-b883-4681-add2-56cf190f8f34/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-11-07 08:24:20,923 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-07 08:24:20,930 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a47b8b4-b883-4681-add2-56cf190f8f34/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-11-07 08:24:20,930 INFO L210 LassoAnalysis]: Preferences: [2021-11-07 08:24:20,930 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-07 08:24:20,930 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-07 08:24:20,930 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-07 08:24:20,931 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-07 08:24:20,931 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:24:20,931 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-07 08:24:20,931 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-07 08:24:20,931 INFO L133 ssoRankerPreferences]: Filename of dumped script: hhk2008.i_Iteration1_Loop [2021-11-07 08:24:20,931 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-07 08:24:20,931 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-07 08:24:20,933 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:24:20,944 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:24:20,988 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-07 08:24:20,993 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-07 08:24:20,999 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:24:21,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a47b8b4-b883-4681-add2-56cf190f8f34/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:24:21,002 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a47b8b4-b883-4681-add2-56cf190f8f34/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:24:21,008 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 [2021-11-07 08:24:21,017 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 08:24:21,018 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 08:24:21,018 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 08:24:21,018 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 08:24:21,019 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 08:24:21,023 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 08:24:21,026 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 08:24:21,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a47b8b4-b883-4681-add2-56cf190f8f34/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-11-07 08:24:21,046 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-07 08:24:21,053 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-07 08:24:21,053 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-11-07 08:24:21,055 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:24:21,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a47b8b4-b883-4681-add2-56cf190f8f34/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:24:21,063 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a47b8b4-b883-4681-add2-56cf190f8f34/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:24:21,086 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-07 08:24:21,086 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-07 08:24:21,087 INFO L513 LassoAnalysis]: Proved termination. [2021-11-07 08:24:21,088 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~cnt~0) = 1*ULTIMATE.start_main_~cnt~0 Supporting invariants [] [2021-11-07 08:24:21,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a47b8b4-b883-4681-add2-56cf190f8f34/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-11-07 08:24:21,112 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a47b8b4-b883-4681-add2-56cf190f8f34/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-11-07 08:24:21,114 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-07 08:24:21,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:24:21,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:24:21,150 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 08:24:21,151 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:24:21,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:24:21,174 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 08:24:21,174 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:24:21,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:24:21,196 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-11-07 08:24:21,197 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 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 2 states, 2 states have (on average 2.5) internal successors, (5), 2 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) [2021-11-07 08:24:21,273 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 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 2 states, 2 states have (on average 2.5) internal successors, (5), 2 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 30 states and 36 transitions. Complement of second has 5 states. [2021-11-07 08:24:21,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-11-07 08:24:21,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 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) [2021-11-07 08:24:21,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 25 transitions. [2021-11-07 08:24:21,286 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 4 letters. Loop has 1 letters. [2021-11-07 08:24:21,287 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 08:24:21,287 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 5 letters. Loop has 1 letters. [2021-11-07 08:24:21,287 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 08:24:21,287 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 4 letters. Loop has 2 letters. [2021-11-07 08:24:21,288 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 08:24:21,288 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 36 transitions. [2021-11-07 08:24:21,292 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-07 08:24:21,296 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 0 states and 0 transitions. [2021-11-07 08:24:21,297 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-11-07 08:24:21,297 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-11-07 08:24:21,298 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-11-07 08:24:21,298 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-07 08:24:21,298 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-07 08:24:21,298 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-07 08:24:21,298 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-07 08:24:21,299 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-07 08:24:21,299 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-11-07 08:24:21,299 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-07 08:24:21,299 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-11-07 08:24:21,319 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.11 08:24:21 BoogieIcfgContainer [2021-11-07 08:24:21,319 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-07 08:24:21,320 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 08:24:21,320 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 08:24:21,320 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 08:24:21,320 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:24:20" (3/4) ... [2021-11-07 08:24:21,323 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-07 08:24:21,323 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 08:24:21,325 INFO L168 Benchmark]: Toolchain (without parser) took 1730.47 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 56.1 MB in the beginning and 70.8 MB in the end (delta: -14.8 MB). Peak memory consumption was 6.5 MB. Max. memory is 16.1 GB. [2021-11-07 08:24:21,325 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 96.5 MB. Free memory is still 72.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 08:24:21,326 INFO L168 Benchmark]: CACSL2BoogieTranslator took 245.67 ms. Allocated memory is still 96.5 MB. Free memory was 55.9 MB in the beginning and 71.8 MB in the end (delta: -16.0 MB). Peak memory consumption was 6.1 MB. Max. memory is 16.1 GB. [2021-11-07 08:24:21,327 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.12 ms. Allocated memory is still 96.5 MB. Free memory was 71.8 MB in the beginning and 70.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 08:24:21,328 INFO L168 Benchmark]: Boogie Preprocessor took 19.30 ms. Allocated memory is still 96.5 MB. Free memory was 70.4 MB in the beginning and 69.5 MB in the end (delta: 839.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 08:24:21,328 INFO L168 Benchmark]: RCFGBuilder took 269.08 ms. Allocated memory is still 96.5 MB. Free memory was 69.3 MB in the beginning and 60.6 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-07 08:24:21,345 INFO L168 Benchmark]: BuchiAutomizer took 1158.56 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 60.5 MB in the beginning and 70.8 MB in the end (delta: -10.4 MB). Peak memory consumption was 12.7 MB. Max. memory is 16.1 GB. [2021-11-07 08:24:21,346 INFO L168 Benchmark]: Witness Printer took 3.64 ms. Allocated memory is still 117.4 MB. Free memory is still 70.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 08:24:21,350 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 96.5 MB. Free memory is still 72.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 245.67 ms. Allocated memory is still 96.5 MB. Free memory was 55.9 MB in the beginning and 71.8 MB in the end (delta: -16.0 MB). Peak memory consumption was 6.1 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 29.12 ms. Allocated memory is still 96.5 MB. Free memory was 71.8 MB in the beginning and 70.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 19.30 ms. Allocated memory is still 96.5 MB. Free memory was 70.4 MB in the beginning and 69.5 MB in the end (delta: 839.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 269.08 ms. Allocated memory is still 96.5 MB. Free memory was 69.3 MB in the beginning and 60.6 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 1158.56 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 60.5 MB in the beginning and 70.8 MB in the end (delta: -10.4 MB). Peak memory consumption was 12.7 MB. Max. memory is 16.1 GB. * Witness Printer took 3.64 ms. Allocated memory is still 117.4 MB. Free memory is still 70.8 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 cnt and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.1s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 14 SDtfs, 14 SDslu, 6 SDs, 0 SdLazy, 3 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax100 hnf100 lsp66 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 89ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-11-07 08:24:21,421 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a47b8b4-b883-4681-add2-56cf190f8f34/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-11-07 08:24:21,639 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a47b8b4-b883-4681-add2-56cf190f8f34/bin/uautomizer-AkOaLMaTGY/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