./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loops/sum01_bug02_sum01_bug02_base.case.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_46adcb7a-10f0-4485-912a-4772a2cb53f6/bin/uautomizer-IVEQpCNsaX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46adcb7a-10f0-4485-912a-4772a2cb53f6/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_46adcb7a-10f0-4485-912a-4772a2cb53f6/bin/uautomizer-IVEQpCNsaX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46adcb7a-10f0-4485-912a-4772a2cb53f6/bin/uautomizer-IVEQpCNsaX/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loops/sum01_bug02_sum01_bug02_base.case.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46adcb7a-10f0-4485-912a-4772a2cb53f6/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_46adcb7a-10f0-4485-912a-4772a2cb53f6/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 4f7670ede459996daea4f0d5b6d4f8f7722cb2c07f35d54c8d0ca4957e40998d --- Real Ultimate output --- This is Ultimate 0.2.1-dev-f8e1c90 [2021-11-09 09:45:12,908 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-09 09:45:12,911 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-09 09:45:12,975 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-09 09:45:12,975 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-09 09:45:12,977 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-09 09:45:12,980 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-09 09:45:12,983 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-09 09:45:12,986 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-09 09:45:12,987 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-09 09:45:12,989 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-09 09:45:12,993 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-09 09:45:12,994 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-09 09:45:13,001 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-09 09:45:13,003 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-09 09:45:13,007 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-09 09:45:13,013 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-09 09:45:13,016 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-09 09:45:13,019 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-09 09:45:13,025 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-09 09:45:13,030 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-09 09:45:13,031 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-09 09:45:13,036 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-09 09:45:13,037 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-09 09:45:13,050 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-09 09:45:13,052 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-09 09:45:13,053 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-09 09:45:13,055 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-09 09:45:13,056 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-09 09:45:13,059 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-09 09:45:13,060 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-09 09:45:13,061 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-09 09:45:13,064 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-09 09:45:13,066 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-09 09:45:13,068 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-09 09:45:13,068 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-09 09:45:13,070 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-09 09:45:13,070 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-09 09:45:13,070 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-09 09:45:13,072 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-09 09:45:13,073 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-09 09:45:13,074 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46adcb7a-10f0-4485-912a-4772a2cb53f6/bin/uautomizer-IVEQpCNsaX/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-09 09:45:13,130 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-09 09:45:13,137 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-09 09:45:13,138 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-09 09:45:13,139 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-09 09:45:13,141 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-09 09:45:13,141 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-09 09:45:13,141 INFO L138 SettingsManager]: * Use SBE=true [2021-11-09 09:45:13,142 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-09 09:45:13,142 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-09 09:45:13,142 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-09 09:45:13,144 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-09 09:45:13,144 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-09 09:45:13,144 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-09 09:45:13,145 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-09 09:45:13,145 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-09 09:45:13,145 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-09 09:45:13,145 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-09 09:45:13,146 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-09 09:45:13,146 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-09 09:45:13,146 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-09 09:45:13,147 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-09 09:45:13,147 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-09 09:45:13,147 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-09 09:45:13,147 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-09 09:45:13,148 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-09 09:45:13,148 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-09 09:45:13,150 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-09 09:45:13,150 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-09 09:45:13,151 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-09 09:45:13,151 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-09 09:45:13,151 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-09 09:45:13,152 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-09 09:45:13,153 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-09 09:45:13,154 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_46adcb7a-10f0-4485-912a-4772a2cb53f6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46adcb7a-10f0-4485-912a-4772a2cb53f6/bin/uautomizer-IVEQpCNsaX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f7670ede459996daea4f0d5b6d4f8f7722cb2c07f35d54c8d0ca4957e40998d [2021-11-09 09:45:13,564 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-09 09:45:13,613 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-09 09:45:13,617 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-09 09:45:13,619 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-09 09:45:13,621 INFO L275 PluginConnector]: CDTParser initialized [2021-11-09 09:45:13,623 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46adcb7a-10f0-4485-912a-4772a2cb53f6/bin/uautomizer-IVEQpCNsaX/../../sv-benchmarks/c/loops/sum01_bug02_sum01_bug02_base.case.i [2021-11-09 09:45:13,748 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46adcb7a-10f0-4485-912a-4772a2cb53f6/bin/uautomizer-IVEQpCNsaX/data/cfec77343/4e9c0ac867734a8ca202f00bc4b2fc82/FLAG74e688835 [2021-11-09 09:45:14,417 INFO L306 CDTParser]: Found 1 translation units. [2021-11-09 09:45:14,419 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46adcb7a-10f0-4485-912a-4772a2cb53f6/sv-benchmarks/c/loops/sum01_bug02_sum01_bug02_base.case.i [2021-11-09 09:45:14,433 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46adcb7a-10f0-4485-912a-4772a2cb53f6/bin/uautomizer-IVEQpCNsaX/data/cfec77343/4e9c0ac867734a8ca202f00bc4b2fc82/FLAG74e688835 [2021-11-09 09:45:14,751 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46adcb7a-10f0-4485-912a-4772a2cb53f6/bin/uautomizer-IVEQpCNsaX/data/cfec77343/4e9c0ac867734a8ca202f00bc4b2fc82 [2021-11-09 09:45:14,755 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-09 09:45:14,757 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-09 09:45:14,760 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-09 09:45:14,760 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-09 09:45:14,765 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-09 09:45:14,766 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 09:45:14" (1/1) ... [2021-11-09 09:45:14,768 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31f9af91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:45:14, skipping insertion in model container [2021-11-09 09:45:14,768 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 09:45:14" (1/1) ... [2021-11-09 09:45:14,778 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-09 09:45:14,800 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-09 09:45:15,005 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_46adcb7a-10f0-4485-912a-4772a2cb53f6/sv-benchmarks/c/loops/sum01_bug02_sum01_bug02_base.case.i[834,847] [2021-11-09 09:45:15,035 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 09:45:15,056 INFO L203 MainTranslator]: Completed pre-run [2021-11-09 09:45:15,074 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_46adcb7a-10f0-4485-912a-4772a2cb53f6/sv-benchmarks/c/loops/sum01_bug02_sum01_bug02_base.case.i[834,847] [2021-11-09 09:45:15,078 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 09:45:15,094 INFO L208 MainTranslator]: Completed translation [2021-11-09 09:45:15,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:45:15 WrapperNode [2021-11-09 09:45:15,095 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-09 09:45:15,097 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-09 09:45:15,097 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-09 09:45:15,097 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-09 09:45:15,107 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:45:15" (1/1) ... [2021-11-09 09:45:15,115 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:45:15" (1/1) ... [2021-11-09 09:45:15,139 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-09 09:45:15,140 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-09 09:45:15,140 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-09 09:45:15,140 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-09 09:45:15,152 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:45:15" (1/1) ... [2021-11-09 09:45:15,152 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:45:15" (1/1) ... [2021-11-09 09:45:15,153 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:45:15" (1/1) ... [2021-11-09 09:45:15,154 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:45:15" (1/1) ... [2021-11-09 09:45:15,158 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:45:15" (1/1) ... [2021-11-09 09:45:15,171 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:45:15" (1/1) ... [2021-11-09 09:45:15,172 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:45:15" (1/1) ... [2021-11-09 09:45:15,175 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-09 09:45:15,176 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-09 09:45:15,176 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-09 09:45:15,176 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-09 09:45:15,184 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:45:15" (1/1) ... [2021-11-09 09:45:15,195 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:45:15,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46adcb7a-10f0-4485-912a-4772a2cb53f6/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:45:15,233 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46adcb7a-10f0-4485-912a-4772a2cb53f6/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:45:15,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46adcb7a-10f0-4485-912a-4772a2cb53f6/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-09 09:45:15,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-09 09:45:15,294 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-09 09:45:15,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-09 09:45:15,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-09 09:45:15,645 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-09 09:45:15,645 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-11-09 09:45:15,648 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 09:45:15 BoogieIcfgContainer [2021-11-09 09:45:15,648 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-09 09:45:15,649 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-09 09:45:15,650 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-09 09:45:15,666 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-09 09:45:15,667 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-09 09:45:15,667 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 09.11 09:45:14" (1/3) ... [2021-11-09 09:45:15,670 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@fdb1a8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.11 09:45:15, skipping insertion in model container [2021-11-09 09:45:15,670 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-09 09:45:15,670 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:45:15" (2/3) ... [2021-11-09 09:45:15,671 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@fdb1a8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.11 09:45:15, skipping insertion in model container [2021-11-09 09:45:15,671 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-09 09:45:15,671 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 09:45:15" (3/3) ... [2021-11-09 09:45:15,673 INFO L389 chiAutomizerObserver]: Analyzing ICFG sum01_bug02_sum01_bug02_base.case.i [2021-11-09 09:45:15,791 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-09 09:45:15,807 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-09 09:45:15,808 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-09 09:45:15,808 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-09 09:45:15,808 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-09 09:45:15,808 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-09 09:45:15,808 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-09 09:45:15,809 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-09 09:45:15,841 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 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 09:45:15,863 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-09 09:45:15,863 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 09:45:15,863 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 09:45:15,871 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-09 09:45:15,871 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-09 09:45:15,872 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-09 09:45:15,872 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 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 09:45:15,874 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-09 09:45:15,875 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 09:45:15,875 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 09:45:15,876 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-09 09:45:15,876 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-09 09:45:15,884 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(36); 9#L-1true havoc main_#res;havoc main_#t~nondet3, main_#t~post4, main_~i~0, main_~n~0, main_~sn~0;havoc main_~i~0;main_~n~0 := (if main_#t~nondet3 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet3 % 4294967296 % 4294967296 else main_#t~nondet3 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet3;main_~sn~0 := 0;main_~i~0 := 1; 10#L24-3true [2021-11-09 09:45:15,885 INFO L793 eck$LassoCheckResult]: Loop: 10#L24-3true assume !!(main_~i~0 <= main_~n~0);main_~sn~0 := 2 + main_~sn~0; 8#L26true assume 4 == main_~i~0;main_~sn~0 := -10; 6#L24-2true main_#t~post4 := main_~i~0;main_~i~0 := 1 + main_#t~post4;havoc main_#t~post4; 10#L24-3true [2021-11-09 09:45:15,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:45:15,893 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-11-09 09:45:15,904 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:45:15,904 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347091083] [2021-11-09 09:45:15,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:45:15,906 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:45:16,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:45:16,075 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 09:45:16,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:45:16,151 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 09:45:16,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:45:16,169 INFO L85 PathProgramCache]: Analyzing trace with hash 39821, now seen corresponding path program 1 times [2021-11-09 09:45:16,169 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:45:16,170 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132746560] [2021-11-09 09:45:16,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:45:16,171 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:45:16,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:45:16,187 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 09:45:16,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:45:16,205 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 09:45:16,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:45:16,212 INFO L85 PathProgramCache]: Analyzing trace with hash 28698763, now seen corresponding path program 1 times [2021-11-09 09:45:16,212 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:45:16,213 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373059865] [2021-11-09 09:45:16,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:45:16,214 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:45:16,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:45:16,402 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 09:45:16,402 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:45:16,404 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373059865] [2021-11-09 09:45:16,405 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373059865] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:45:16,405 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:45:16,406 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 09:45:16,406 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975977632] [2021-11-09 09:45:16,515 INFO L210 LassoAnalysis]: Preferences: [2021-11-09 09:45:16,516 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-09 09:45:16,516 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-09 09:45:16,517 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-09 09:45:16,517 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-09 09:45:16,518 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:45:16,518 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-09 09:45:16,518 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-09 09:45:16,519 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum01_bug02_sum01_bug02_base.case.i_Iteration1_Loop [2021-11-09 09:45:16,519 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-09 09:45:16,519 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-09 09:45:16,541 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 09:45:16,551 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 09:45:16,568 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 09:45:16,634 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-09 09:45:16,635 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-09 09:45:16,638 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:45:16,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46adcb7a-10f0-4485-912a-4772a2cb53f6/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:45:16,640 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46adcb7a-10f0-4485-912a-4772a2cb53f6/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:45:16,645 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-09 09:45:16,646 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-09 09:45:16,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46adcb7a-10f0-4485-912a-4772a2cb53f6/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-11-09 09:45:16,678 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-09 09:45:16,678 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~sn~0=-10} Honda state: {ULTIMATE.start_main_~sn~0=-10} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-09 09:45:16,709 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46adcb7a-10f0-4485-912a-4772a2cb53f6/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2021-11-09 09:45:16,709 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:45:16,710 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46adcb7a-10f0-4485-912a-4772a2cb53f6/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:45:16,715 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46adcb7a-10f0-4485-912a-4772a2cb53f6/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:45:16,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46adcb7a-10f0-4485-912a-4772a2cb53f6/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-11-09 09:45:16,720 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-09 09:45:16,720 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-09 09:45:16,791 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46adcb7a-10f0-4485-912a-4772a2cb53f6/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-11-09 09:45:16,792 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:45:16,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46adcb7a-10f0-4485-912a-4772a2cb53f6/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:45:16,793 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46adcb7a-10f0-4485-912a-4772a2cb53f6/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:45:16,801 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-09 09:45:16,801 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-09 09:45:16,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46adcb7a-10f0-4485-912a-4772a2cb53f6/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-11-09 09:45:16,835 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-09 09:45:16,882 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46adcb7a-10f0-4485-912a-4772a2cb53f6/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-11-09 09:45:16,882 INFO L210 LassoAnalysis]: Preferences: [2021-11-09 09:45:16,883 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-09 09:45:16,883 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-09 09:45:16,883 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-09 09:45:16,883 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-09 09:45:16,883 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:45:16,883 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-09 09:45:16,884 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-09 09:45:16,884 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum01_bug02_sum01_bug02_base.case.i_Iteration1_Loop [2021-11-09 09:45:16,884 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-09 09:45:16,884 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-09 09:45:16,886 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 09:45:16,891 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 09:45:16,905 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 09:45:16,975 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-09 09:45:16,981 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-09 09:45:16,983 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:45:16,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46adcb7a-10f0-4485-912a-4772a2cb53f6/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:45:16,984 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46adcb7a-10f0-4485-912a-4772a2cb53f6/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:45:16,993 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 09:45:17,004 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 09:45:17,005 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-09 09:45:17,005 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 09:45:17,006 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 09:45:17,006 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 09:45:17,009 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-09 09:45:17,009 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-09 09:45:17,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46adcb7a-10f0-4485-912a-4772a2cb53f6/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-11-09 09:45:17,028 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 09:45:17,054 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46adcb7a-10f0-4485-912a-4772a2cb53f6/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-11-09 09:45:17,055 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:45:17,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46adcb7a-10f0-4485-912a-4772a2cb53f6/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:45:17,057 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46adcb7a-10f0-4485-912a-4772a2cb53f6/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:45:17,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46adcb7a-10f0-4485-912a-4772a2cb53f6/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-11-09 09:45:17,059 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 09:45:17,068 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 09:45:17,069 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-09 09:45:17,069 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 09:45:17,069 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 09:45:17,069 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 09:45:17,072 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-09 09:45:17,072 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-09 09:45:17,095 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-09 09:45:17,105 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-09 09:45:17,105 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-11-09 09:45:17,107 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:45:17,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46adcb7a-10f0-4485-912a-4772a2cb53f6/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:45:17,112 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46adcb7a-10f0-4485-912a-4772a2cb53f6/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:45:17,119 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-09 09:45:17,119 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-09 09:45:17,119 INFO L513 LassoAnalysis]: Proved termination. [2021-11-09 09:45:17,120 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 9 Supporting invariants [] [2021-11-09 09:45:17,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46adcb7a-10f0-4485-912a-4772a2cb53f6/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-11-09 09:45:17,154 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46adcb7a-10f0-4485-912a-4772a2cb53f6/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-11-09 09:45:17,157 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-09 09:45:17,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:45:17,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:45:17,243 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-09 09:45:17,244 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:45:17,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:45:17,276 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-09 09:45:17,277 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:45:17,308 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46adcb7a-10f0-4485-912a-4772a2cb53f6/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-11-09 09:45:17,352 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 09:45:17,380 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-11-09 09:45:17,382 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 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 09:45:17,466 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 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 32 states and 44 transitions. Complement of second has 7 states. [2021-11-09 09:45:17,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-11-09 09:45:17,470 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 09:45:17,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 24 transitions. [2021-11-09 09:45:17,474 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 2 letters. Loop has 3 letters. [2021-11-09 09:45:17,476 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-09 09:45:17,477 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 5 letters. Loop has 3 letters. [2021-11-09 09:45:17,477 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-09 09:45:17,478 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 2 letters. Loop has 6 letters. [2021-11-09 09:45:17,478 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-09 09:45:17,479 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 44 transitions. [2021-11-09 09:45:17,490 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-09 09:45:17,496 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 12 states and 15 transitions. [2021-11-09 09:45:17,503 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-11-09 09:45:17,503 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-11-09 09:45:17,504 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 15 transitions. [2021-11-09 09:45:17,504 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-09 09:45:17,504 INFO L681 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2021-11-09 09:45:17,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 15 transitions. [2021-11-09 09:45:17,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2021-11-09 09:45:17,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 10 states have internal predecessors, (14), 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 09:45:17,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2021-11-09 09:45:17,532 INFO L704 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2021-11-09 09:45:17,532 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:45:17,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 09:45:17,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 09:45:17,538 INFO L87 Difference]: Start difference. First operand 11 states and 14 transitions. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:45:17,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:45:17,555 INFO L93 Difference]: Finished difference Result 15 states and 18 transitions. [2021-11-09 09:45:17,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 09:45:17,556 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 18 transitions. [2021-11-09 09:45:17,558 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-09 09:45:17,559 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 15 states and 18 transitions. [2021-11-09 09:45:17,559 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2021-11-09 09:45:17,559 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2021-11-09 09:45:17,560 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 18 transitions. [2021-11-09 09:45:17,560 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-09 09:45:17,560 INFO L681 BuchiCegarLoop]: Abstraction has 15 states and 18 transitions. [2021-11-09 09:45:17,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 18 transitions. [2021-11-09 09:45:17,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 12. [2021-11-09 09:45:17,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.25) internal successors, (15), 11 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:45:17,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 15 transitions. [2021-11-09 09:45:17,564 INFO L704 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2021-11-09 09:45:17,565 INFO L587 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2021-11-09 09:45:17,565 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-09 09:45:17,565 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 15 transitions. [2021-11-09 09:45:17,566 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-09 09:45:17,567 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 09:45:17,567 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 09:45:17,568 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-11-09 09:45:17,568 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-09 09:45:17,568 INFO L791 eck$LassoCheckResult]: Stem: 112#ULTIMATE.startENTRY #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(36); 113#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~post4, main_~i~0, main_~n~0, main_~sn~0;havoc main_~i~0;main_~n~0 := (if main_#t~nondet3 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet3 % 4294967296 % 4294967296 else main_#t~nondet3 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet3;main_~sn~0 := 0;main_~i~0 := 1; 121#L24-3 assume !!(main_~i~0 <= main_~n~0);main_~sn~0 := 2 + main_~sn~0; 118#L26 [2021-11-09 09:45:17,569 INFO L793 eck$LassoCheckResult]: Loop: 118#L26 assume !(4 == main_~i~0); 114#L24-2 main_#t~post4 := main_~i~0;main_~i~0 := 1 + main_#t~post4;havoc main_#t~post4; 115#L24-3 assume !!(main_~i~0 <= main_~n~0);main_~sn~0 := 2 + main_~sn~0; 118#L26 [2021-11-09 09:45:17,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:45:17,570 INFO L85 PathProgramCache]: Analyzing trace with hash 29863, now seen corresponding path program 1 times [2021-11-09 09:45:17,571 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:45:17,571 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660200401] [2021-11-09 09:45:17,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:45:17,572 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:45:17,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:45:17,603 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 09:45:17,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:45:17,627 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 09:45:17,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:45:17,628 INFO L85 PathProgramCache]: Analyzing trace with hash 44743, now seen corresponding path program 1 times [2021-11-09 09:45:17,629 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:45:17,629 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362652226] [2021-11-09 09:45:17,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:45:17,630 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:45:17,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:45:17,635 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 09:45:17,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:45:17,641 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 09:45:17,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:45:17,643 INFO L85 PathProgramCache]: Analyzing trace with hash 889663585, now seen corresponding path program 1 times [2021-11-09 09:45:17,643 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:45:17,643 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850492490] [2021-11-09 09:45:17,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:45:17,644 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:45:17,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:45:17,665 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 09:45:17,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:45:17,710 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 09:45:17,759 INFO L210 LassoAnalysis]: Preferences: [2021-11-09 09:45:17,760 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-09 09:45:17,760 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-09 09:45:17,760 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-09 09:45:17,760 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-09 09:45:17,761 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:45:17,761 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-09 09:45:17,761 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-09 09:45:17,761 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum01_bug02_sum01_bug02_base.case.i_Iteration2_Loop [2021-11-09 09:45:17,762 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-09 09:45:17,762 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-09 09:45:17,766 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 09:45:17,772 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 09:45:17,775 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 09:45:17,852 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-09 09:45:17,853 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-09 09:45:17,853 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:45:17,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46adcb7a-10f0-4485-912a-4772a2cb53f6/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:45:17,864 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46adcb7a-10f0-4485-912a-4772a2cb53f6/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:45:17,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46adcb7a-10f0-4485-912a-4772a2cb53f6/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-11-09 09:45:17,867 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-09 09:45:17,867 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-09 09:45:17,915 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46adcb7a-10f0-4485-912a-4772a2cb53f6/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2021-11-09 09:45:17,915 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:45:17,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46adcb7a-10f0-4485-912a-4772a2cb53f6/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:45:17,917 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46adcb7a-10f0-4485-912a-4772a2cb53f6/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:45:17,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46adcb7a-10f0-4485-912a-4772a2cb53f6/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-11-09 09:45:17,922 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-09 09:45:17,922 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-09 09:45:17,952 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-09 09:45:17,953 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~sn~0=0} Honda state: {ULTIMATE.start_main_~sn~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~sn~0=-1}, {ULTIMATE.start_main_~sn~0=3}, {ULTIMATE.start_main_~sn~0=0}] Lambdas: [4, 1, 0] Nus: [1, 1] [2021-11-09 09:45:18,008 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46adcb7a-10f0-4485-912a-4772a2cb53f6/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2021-11-09 09:45:18,008 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:45:18,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46adcb7a-10f0-4485-912a-4772a2cb53f6/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:45:18,011 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46adcb7a-10f0-4485-912a-4772a2cb53f6/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:45:18,018 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-09 09:45:18,018 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-09 09:45:18,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46adcb7a-10f0-4485-912a-4772a2cb53f6/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-11-09 09:45:18,042 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-09 09:45:18,042 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post4=0} Honda state: {ULTIMATE.start_main_#t~post4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-09 09:45:18,088 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46adcb7a-10f0-4485-912a-4772a2cb53f6/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-11-09 09:45:18,089 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:45:18,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46adcb7a-10f0-4485-912a-4772a2cb53f6/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:45:18,090 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46adcb7a-10f0-4485-912a-4772a2cb53f6/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:45:18,101 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-09 09:45:18,102 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-09 09:45:18,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46adcb7a-10f0-4485-912a-4772a2cb53f6/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-11-09 09:45:18,197 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46adcb7a-10f0-4485-912a-4772a2cb53f6/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-11-09 09:45:18,197 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:45:18,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46adcb7a-10f0-4485-912a-4772a2cb53f6/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:45:18,199 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46adcb7a-10f0-4485-912a-4772a2cb53f6/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:45:18,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46adcb7a-10f0-4485-912a-4772a2cb53f6/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-11-09 09:45:18,201 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-09 09:45:18,201 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-09 09:45:18,379 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-09 09:45:18,385 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46adcb7a-10f0-4485-912a-4772a2cb53f6/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-11-09 09:45:18,385 INFO L210 LassoAnalysis]: Preferences: [2021-11-09 09:45:18,386 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-09 09:45:18,386 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-09 09:45:18,386 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-09 09:45:18,386 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-09 09:45:18,386 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:45:18,386 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-09 09:45:18,386 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-09 09:45:18,386 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum01_bug02_sum01_bug02_base.case.i_Iteration2_Loop [2021-11-09 09:45:18,386 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-09 09:45:18,386 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-09 09:45:18,388 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 09:45:18,396 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 09:45:18,400 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 09:45:18,479 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-09 09:45:18,479 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-09 09:45:18,480 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:45:18,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46adcb7a-10f0-4485-912a-4772a2cb53f6/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:45:18,488 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46adcb7a-10f0-4485-912a-4772a2cb53f6/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:45:18,495 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 09:45:18,507 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 09:45:18,507 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-09 09:45:18,507 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 09:45:18,508 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 09:45:18,508 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 09:45:18,509 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-09 09:45:18,509 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-09 09:45:18,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46adcb7a-10f0-4485-912a-4772a2cb53f6/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-11-09 09:45:18,523 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 09:45:18,548 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46adcb7a-10f0-4485-912a-4772a2cb53f6/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-11-09 09:45:18,549 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:45:18,549 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46adcb7a-10f0-4485-912a-4772a2cb53f6/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:45:18,550 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46adcb7a-10f0-4485-912a-4772a2cb53f6/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:45:18,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46adcb7a-10f0-4485-912a-4772a2cb53f6/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-11-09 09:45:18,554 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 09:45:18,564 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 09:45:18,564 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-09 09:45:18,564 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 09:45:18,564 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 09:45:18,564 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 09:45:18,566 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-09 09:45:18,566 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-09 09:45:18,567 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 09:45:18,596 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46adcb7a-10f0-4485-912a-4772a2cb53f6/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2021-11-09 09:45:18,597 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:45:18,597 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46adcb7a-10f0-4485-912a-4772a2cb53f6/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:45:18,598 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46adcb7a-10f0-4485-912a-4772a2cb53f6/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:45:18,602 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 09:45:18,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46adcb7a-10f0-4485-912a-4772a2cb53f6/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-11-09 09:45:18,612 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 09:45:18,612 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-09 09:45:18,613 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 09:45:18,613 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-11-09 09:45:18,613 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 09:45:18,616 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-11-09 09:45:18,617 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-09 09:45:18,644 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-09 09:45:18,661 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-11-09 09:45:18,661 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-11-09 09:45:18,662 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:45:18,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46adcb7a-10f0-4485-912a-4772a2cb53f6/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:45:18,668 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46adcb7a-10f0-4485-912a-4772a2cb53f6/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:45:18,696 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-09 09:45:18,696 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-09 09:45:18,696 INFO L513 LassoAnalysis]: Proved termination. [2021-11-09 09:45:18,696 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~n~0 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2021-11-09 09:45:18,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46adcb7a-10f0-4485-912a-4772a2cb53f6/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-11-09 09:45:18,796 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46adcb7a-10f0-4485-912a-4772a2cb53f6/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-11-09 09:45:18,797 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-09 09:45:18,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:45:18,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:45:18,844 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-09 09:45:18,845 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:45:18,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:45:18,862 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-09 09:45:18,863 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:45:18,900 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 09:45:18,901 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-11-09 09:45:18,901 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 15 transitions. cyclomatic complexity: 5 Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:45:18,927 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 15 transitions. cyclomatic complexity: 5. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 19 states and 24 transitions. Complement of second has 6 states. [2021-11-09 09:45:18,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-11-09 09:45:18,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:45:18,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7 transitions. [2021-11-09 09:45:18,929 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 3 letters. Loop has 3 letters. [2021-11-09 09:45:18,929 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-09 09:45:18,929 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 6 letters. Loop has 3 letters. [2021-11-09 09:45:18,930 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-09 09:45:18,930 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 3 letters. Loop has 6 letters. [2021-11-09 09:45:18,930 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-09 09:45:18,930 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 24 transitions. [2021-11-09 09:45:18,932 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-09 09:45:18,932 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 0 states and 0 transitions. [2021-11-09 09:45:18,932 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-11-09 09:45:18,933 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-11-09 09:45:18,933 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-11-09 09:45:18,933 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 09:45:18,933 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-09 09:45:18,933 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-09 09:45:18,933 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-09 09:45:18,934 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-11-09 09:45:18,934 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-11-09 09:45:18,934 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-09 09:45:18,934 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-11-09 09:45:18,941 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 09.11 09:45:18 BoogieIcfgContainer [2021-11-09 09:45:18,942 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-09 09:45:18,942 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-09 09:45:18,943 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-09 09:45:18,943 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-09 09:45:18,944 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 09:45:15" (3/4) ... [2021-11-09 09:45:18,952 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-09 09:45:18,952 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-09 09:45:18,955 INFO L168 Benchmark]: Toolchain (without parser) took 4196.04 ms. Allocated memory was 111.1 MB in the beginning and 138.4 MB in the end (delta: 27.3 MB). Free memory was 70.6 MB in the beginning and 71.1 MB in the end (delta: -524.9 kB). Peak memory consumption was 26.0 MB. Max. memory is 16.1 GB. [2021-11-09 09:45:18,956 INFO L168 Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 111.1 MB. Free memory is still 86.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-09 09:45:18,957 INFO L168 Benchmark]: CACSL2BoogieTranslator took 335.95 ms. Allocated memory is still 111.1 MB. Free memory was 70.4 MB in the beginning and 86.6 MB in the end (delta: -16.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-09 09:45:18,958 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.37 ms. Allocated memory is still 111.1 MB. Free memory was 86.6 MB in the beginning and 85.4 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-09 09:45:18,960 INFO L168 Benchmark]: Boogie Preprocessor took 35.27 ms. Allocated memory is still 111.1 MB. Free memory was 85.4 MB in the beginning and 84.3 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-09 09:45:18,964 INFO L168 Benchmark]: RCFGBuilder took 472.28 ms. Allocated memory is still 111.1 MB. Free memory was 84.3 MB in the beginning and 75.1 MB in the end (delta: 9.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-09 09:45:18,966 INFO L168 Benchmark]: BuchiAutomizer took 3292.50 ms. Allocated memory was 111.1 MB in the beginning and 138.4 MB in the end (delta: 27.3 MB). Free memory was 75.1 MB in the beginning and 71.9 MB in the end (delta: 3.2 MB). Peak memory consumption was 32.1 MB. Max. memory is 16.1 GB. [2021-11-09 09:45:18,970 INFO L168 Benchmark]: Witness Printer took 9.99 ms. Allocated memory is still 138.4 MB. Free memory was 71.9 MB in the beginning and 71.1 MB in the end (delta: 761.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-09 09:45:18,980 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37 ms. Allocated memory is still 111.1 MB. Free memory is still 86.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 335.95 ms. Allocated memory is still 111.1 MB. Free memory was 70.4 MB in the beginning and 86.6 MB in the end (delta: -16.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 42.37 ms. Allocated memory is still 111.1 MB. Free memory was 86.6 MB in the beginning and 85.4 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 35.27 ms. Allocated memory is still 111.1 MB. Free memory was 85.4 MB in the beginning and 84.3 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 472.28 ms. Allocated memory is still 111.1 MB. Free memory was 84.3 MB in the beginning and 75.1 MB in the end (delta: 9.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 3292.50 ms. Allocated memory was 111.1 MB in the beginning and 138.4 MB in the end (delta: 27.3 MB). Free memory was 75.1 MB in the beginning and 71.9 MB in the end (delta: 3.2 MB). Peak memory consumption was 32.1 MB. Max. memory is 16.1 GB. * Witness Printer took 9.99 ms. Allocated memory is still 138.4 MB. Free memory was 71.9 MB in the beginning and 71.1 MB in the end (delta: 761.8 kB). 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 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * i + 9 and consists of 5 locations. One deterministic module has affine ranking function n + -1 * i and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.1s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 2.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 12 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 13 SDtfs, 14 SDslu, 11 SDs, 0 SdLazy, 30 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax100 hnf100 lsp72 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq174 hnf93 smp100 dnf132 smp100 tf107 neg97 sie105 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 99ms VariablesStem: 0 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 0 MotzkinApplications: 4 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.5s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-11-09 09:45:19,028 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46adcb7a-10f0-4485-912a-4772a2cb53f6/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-11-09 09:45:19,238 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46adcb7a-10f0-4485-912a-4772a2cb53f6/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