./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-invgen/seq-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-invgen/seq-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro --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 6c770a3141edeab927df0da4e8c2152e1fb2e87b0c43a352500a7e3d3cff4533 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 18:34:15,110 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 18:34:15,112 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 18:34:15,136 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 18:34:15,137 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 18:34:15,138 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 18:34:15,140 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 18:34:15,142 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 18:34:15,145 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 18:34:15,146 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 18:34:15,147 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 18:34:15,149 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 18:34:15,150 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 18:34:15,151 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 18:34:15,153 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 18:34:15,155 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 18:34:15,156 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 18:34:15,157 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 18:34:15,159 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 18:34:15,162 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 18:34:15,164 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 18:34:15,173 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 18:34:15,175 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 18:34:15,179 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 18:34:15,187 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 18:34:15,190 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 18:34:15,190 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 18:34:15,192 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 18:34:15,192 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 18:34:15,195 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 18:34:15,196 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 18:34:15,197 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 18:34:15,199 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 18:34:15,201 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 18:34:15,203 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 18:34:15,204 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 18:34:15,206 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 18:34:15,206 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 18:34:15,206 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 18:34:15,207 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 18:34:15,208 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 18:34:15,209 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-11-18 18:34:15,265 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 18:34:15,266 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 18:34:15,267 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 18:34:15,267 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 18:34:15,269 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 18:34:15,269 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 18:34:15,269 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 18:34:15,270 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-18 18:34:15,270 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-18 18:34:15,270 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-18 18:34:15,272 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-18 18:34:15,272 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-18 18:34:15,272 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-18 18:34:15,273 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 18:34:15,273 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 18:34:15,273 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 18:34:15,273 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 18:34:15,274 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 18:34:15,274 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 18:34:15,274 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-18 18:34:15,274 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-18 18:34:15,275 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-18 18:34:15,275 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 18:34:15,277 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 18:34:15,278 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-18 18:34:15,278 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 18:34:15,278 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-18 18:34:15,279 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 18:34:15,279 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 18:34:15,279 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 18:34:15,279 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 18:34:15,281 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-18 18:34:15,281 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_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6c770a3141edeab927df0da4e8c2152e1fb2e87b0c43a352500a7e3d3cff4533 [2022-11-18 18:34:15,648 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 18:34:15,680 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 18:34:15,684 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 18:34:15,685 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 18:34:15,687 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 18:34:15,688 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/loop-invgen/seq-3.i [2022-11-18 18:34:15,780 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/data/35dd8d73e/3311e1a411864a008d2298b1540acec4/FLAG47ee06342 [2022-11-18 18:34:16,324 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 18:34:16,325 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/sv-benchmarks/c/loop-invgen/seq-3.i [2022-11-18 18:34:16,332 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/data/35dd8d73e/3311e1a411864a008d2298b1540acec4/FLAG47ee06342 [2022-11-18 18:34:16,677 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/data/35dd8d73e/3311e1a411864a008d2298b1540acec4 [2022-11-18 18:34:16,680 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 18:34:16,682 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 18:34:16,688 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 18:34:16,688 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 18:34:16,693 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 18:34:16,694 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:34:16" (1/1) ... [2022-11-18 18:34:16,695 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32002fb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:34:16, skipping insertion in model container [2022-11-18 18:34:16,696 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:34:16" (1/1) ... [2022-11-18 18:34:16,705 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 18:34:16,723 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 18:34:16,943 WARN L234 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_34571edf-8391-4c6f-a373-cad6d4cd4c70/sv-benchmarks/c/loop-invgen/seq-3.i[893,906] [2022-11-18 18:34:16,955 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:34:16,968 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 18:34:16,984 WARN L234 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_34571edf-8391-4c6f-a373-cad6d4cd4c70/sv-benchmarks/c/loop-invgen/seq-3.i[893,906] [2022-11-18 18:34:16,990 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:34:17,008 INFO L208 MainTranslator]: Completed translation [2022-11-18 18:34:17,009 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:34:17 WrapperNode [2022-11-18 18:34:17,009 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 18:34:17,011 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 18:34:17,011 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 18:34:17,011 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 18:34:17,022 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:34:17" (1/1) ... [2022-11-18 18:34:17,039 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:34:17" (1/1) ... [2022-11-18 18:34:17,076 INFO L138 Inliner]: procedures = 16, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 62 [2022-11-18 18:34:17,076 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 18:34:17,077 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 18:34:17,078 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 18:34:17,078 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 18:34:17,089 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:34:17" (1/1) ... [2022-11-18 18:34:17,090 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:34:17" (1/1) ... [2022-11-18 18:34:17,107 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:34:17" (1/1) ... [2022-11-18 18:34:17,107 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:34:17" (1/1) ... [2022-11-18 18:34:17,110 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:34:17" (1/1) ... [2022-11-18 18:34:17,118 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:34:17" (1/1) ... [2022-11-18 18:34:17,122 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:34:17" (1/1) ... [2022-11-18 18:34:17,131 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:34:17" (1/1) ... [2022-11-18 18:34:17,133 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 18:34:17,134 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 18:34:17,134 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 18:34:17,134 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 18:34:17,135 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:34:17" (1/1) ... [2022-11-18 18:34:17,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:34:17,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:34:17,187 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 18:34:17,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-18 18:34:17,247 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 18:34:17,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 18:34:17,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 18:34:17,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 18:34:17,329 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 18:34:17,333 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 18:34:17,499 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 18:34:17,507 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 18:34:17,507 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-18 18:34:17,509 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:34:17 BoogieIcfgContainer [2022-11-18 18:34:17,510 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 18:34:17,511 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-18 18:34:17,511 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-18 18:34:17,519 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-18 18:34:17,520 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 18:34:17,520 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 06:34:16" (1/3) ... [2022-11-18 18:34:17,521 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3f192ac2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 06:34:17, skipping insertion in model container [2022-11-18 18:34:17,521 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 18:34:17,521 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:34:17" (2/3) ... [2022-11-18 18:34:17,522 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3f192ac2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 06:34:17, skipping insertion in model container [2022-11-18 18:34:17,522 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 18:34:17,522 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:34:17" (3/3) ... [2022-11-18 18:34:17,524 INFO L332 chiAutomizerObserver]: Analyzing ICFG seq-3.i [2022-11-18 18:34:17,590 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-18 18:34:17,590 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-18 18:34:17,590 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-18 18:34:17,590 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-18 18:34:17,590 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-18 18:34:17,590 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-18 18:34:17,591 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-18 18:34:17,591 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-18 18:34:17,596 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 14 states have internal predecessors, (23), 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) [2022-11-18 18:34:17,620 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2022-11-18 18:34:17,620 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 18:34:17,620 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 18:34:17,627 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-11-18 18:34:17,627 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-11-18 18:34:17,627 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-18 18:34:17,628 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 14 states have internal predecessors, (23), 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) [2022-11-18 18:34:17,629 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2022-11-18 18:34:17,630 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 18:34:17,630 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 18:34:17,630 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-11-18 18:34:17,630 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-11-18 18:34:17,640 INFO L748 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~nondet2#1, main_#t~post3#1, main_#t~post4#1, main_#t~post5#1, main_#t~post6#1, main_#t~post7#1, main_#t~post8#1, main_~n0~0#1, main_~n1~0#1, main_~i0~0#1, main_~k~0#1, main_~i1~0#1, main_~j1~0#1;havoc main_~n0~0#1;havoc main_~n1~0#1;main_~i0~0#1 := 0;main_~k~0#1 := 0;main_~n0~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~n1~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 5#L30true assume !!(-1000000 <= main_~n0~0#1 && main_~n0~0#1 < 1000000); 6#L31true assume !!(-1000000 <= main_~n1~0#1 && main_~n1~0#1 < 1000000); 8#L32-2true [2022-11-18 18:34:17,641 INFO L750 eck$LassoCheckResult]: Loop: 8#L32-2true assume !!(main_~i0~0#1 < main_~n0~0#1);main_#t~post3#1 := main_~i0~0#1;main_~i0~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1;main_#t~post4#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 8#L32-2true [2022-11-18 18:34:17,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:34:17,648 INFO L85 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 1 times [2022-11-18 18:34:17,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:34:17,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172264814] [2022-11-18 18:34:17,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:34:17,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:34:17,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:34:17,770 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 18:34:17,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:34:17,805 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 18:34:17,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:34:17,809 INFO L85 PathProgramCache]: Analyzing trace with hash 52, now seen corresponding path program 1 times [2022-11-18 18:34:17,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:34:17,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032727055] [2022-11-18 18:34:17,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:34:17,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:34:17,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:34:17,824 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 18:34:17,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:34:17,831 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 18:34:17,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:34:17,834 INFO L85 PathProgramCache]: Analyzing trace with hash 28695853, now seen corresponding path program 1 times [2022-11-18 18:34:17,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:34:17,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391522441] [2022-11-18 18:34:17,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:34:17,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:34:17,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:34:17,853 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 18:34:17,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:34:17,868 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 18:34:17,947 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 18:34:17,948 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 18:34:17,948 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 18:34:17,948 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 18:34:17,949 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-18 18:34:17,949 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:34:17,949 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 18:34:17,949 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 18:34:17,949 INFO L133 ssoRankerPreferences]: Filename of dumped script: seq-3.i_Iteration1_Loop [2022-11-18 18:34:17,950 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 18:34:17,950 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 18:34:17,972 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 18:34:18,011 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 18:34:18,015 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 18:34:18,020 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 18:34:18,119 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 18:34:18,120 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-18 18:34:18,123 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:34:18,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:34:18,155 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 18:34:18,219 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 18:34:18,219 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 18:34:18,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-18 18:34:18,287 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-18 18:34:18,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:34:18,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:34:18,291 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 18:34:18,303 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-18 18:34:18,303 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 18:34:18,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-18 18:34:18,558 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-18 18:34:18,563 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-18 18:34:18,564 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 18:34:18,564 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 18:34:18,564 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 18:34:18,564 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 18:34:18,564 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-18 18:34:18,565 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:34:18,565 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 18:34:18,565 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 18:34:18,565 INFO L133 ssoRankerPreferences]: Filename of dumped script: seq-3.i_Iteration1_Loop [2022-11-18 18:34:18,565 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 18:34:18,565 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 18:34:18,567 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 18:34:18,590 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 18:34:18,602 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 18:34:18,605 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 18:34:18,674 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 18:34:18,682 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-18 18:34:18,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:34:18,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:34:18,691 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 18:34:18,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-18 18:34:18,697 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 [2022-11-18 18:34:18,713 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 18:34:18,714 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 18:34:18,715 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 18:34:18,715 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 18:34:18,715 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 18:34:18,719 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 18:34:18,720 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 18:34:18,735 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-18 18:34:18,748 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2022-11-18 18:34:18,748 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-18 18:34:18,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:34:18,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:34:18,758 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 18:34:18,762 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-18 18:34:18,763 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-18 18:34:18,763 INFO L513 LassoAnalysis]: Proved termination. [2022-11-18 18:34:18,764 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n0~0#1, ULTIMATE.start_main_~i0~0#1) = 1*ULTIMATE.start_main_~n0~0#1 - 1*ULTIMATE.start_main_~i0~0#1 Supporting invariants [] [2022-11-18 18:34:18,775 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-18 18:34:18,776 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-18 18:34:18,780 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-18 18:34:18,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:34:18,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:18,850 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 18:34:18,853 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:34:18,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:18,886 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 18:34:18,888 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:34:18,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:34:18,960 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2022-11-18 18:34:18,963 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 15 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 14 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:34:19,073 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 15 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 14 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 39 states and 55 transitions. Complement of second has 5 states. [2022-11-18 18:34:19,097 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-18 18:34:19,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-11-18 18:34:19,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:34:19,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 39 transitions. [2022-11-18 18:34:19,122 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 39 transitions. Stem has 4 letters. Loop has 1 letters. [2022-11-18 18:34:19,123 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 18:34:19,124 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 39 transitions. Stem has 5 letters. Loop has 1 letters. [2022-11-18 18:34:19,124 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 18:34:19,125 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 39 transitions. Stem has 4 letters. Loop has 2 letters. [2022-11-18 18:34:19,125 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 18:34:19,126 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 39 states and 55 transitions. [2022-11-18 18:34:19,157 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2022-11-18 18:34:19,162 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 39 states to 12 states and 15 transitions. [2022-11-18 18:34:19,164 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2022-11-18 18:34:19,164 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2022-11-18 18:34:19,165 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 15 transitions. [2022-11-18 18:34:19,166 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:34:19,166 INFO L218 hiAutomatonCegarLoop]: Abstraction has 12 states and 15 transitions. [2022-11-18 18:34:19,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 15 transitions. [2022-11-18 18:34:19,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2022-11-18 18:34:19,197 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) [2022-11-18 18:34:19,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 15 transitions. [2022-11-18 18:34:19,200 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12 states and 15 transitions. [2022-11-18 18:34:19,200 INFO L428 stractBuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2022-11-18 18:34:19,201 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-18 18:34:19,202 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 15 transitions. [2022-11-18 18:34:19,204 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2022-11-18 18:34:19,204 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 18:34:19,204 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 18:34:19,205 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2022-11-18 18:34:19,205 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-11-18 18:34:19,205 INFO L748 eck$LassoCheckResult]: Stem: 98#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 99#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~nondet2#1, main_#t~post3#1, main_#t~post4#1, main_#t~post5#1, main_#t~post6#1, main_#t~post7#1, main_#t~post8#1, main_~n0~0#1, main_~n1~0#1, main_~i0~0#1, main_~k~0#1, main_~i1~0#1, main_~j1~0#1;havoc main_~n0~0#1;havoc main_~n1~0#1;main_~i0~0#1 := 0;main_~k~0#1 := 0;main_~n0~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~n1~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 100#L30 assume !!(-1000000 <= main_~n0~0#1 && main_~n0~0#1 < 1000000); 101#L31 assume !!(-1000000 <= main_~n1~0#1 && main_~n1~0#1 < 1000000); 91#L32-2 assume !(main_~i0~0#1 < main_~n0~0#1); 92#L32-3 main_~i1~0#1 := 0; 94#L37-2 [2022-11-18 18:34:19,206 INFO L750 eck$LassoCheckResult]: Loop: 94#L37-2 assume !!(main_~i1~0#1 < main_~n1~0#1);main_#t~post5#1 := main_~i1~0#1;main_~i1~0#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1;main_#t~post6#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 94#L37-2 [2022-11-18 18:34:19,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:34:19,212 INFO L85 PathProgramCache]: Analyzing trace with hash 889571406, now seen corresponding path program 1 times [2022-11-18 18:34:19,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:34:19,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765989211] [2022-11-18 18:34:19,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:34:19,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:34:19,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:34:19,237 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 18:34:19,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:34:19,266 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 18:34:19,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:34:19,267 INFO L85 PathProgramCache]: Analyzing trace with hash 65, now seen corresponding path program 1 times [2022-11-18 18:34:19,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:34:19,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585050803] [2022-11-18 18:34:19,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:34:19,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:34:19,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:34:19,277 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 18:34:19,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:34:19,282 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 18:34:19,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:34:19,283 INFO L85 PathProgramCache]: Analyzing trace with hash 1806909844, now seen corresponding path program 1 times [2022-11-18 18:34:19,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:34:19,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803008100] [2022-11-18 18:34:19,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:34:19,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:34:19,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:34:19,296 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 18:34:19,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:34:19,314 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 18:34:19,373 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 18:34:19,373 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 18:34:19,373 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 18:34:19,374 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 18:34:19,374 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-18 18:34:19,374 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:34:19,374 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 18:34:19,374 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 18:34:19,375 INFO L133 ssoRankerPreferences]: Filename of dumped script: seq-3.i_Iteration2_Loop [2022-11-18 18:34:19,375 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 18:34:19,375 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 18:34:19,377 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 18:34:19,382 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 18:34:19,393 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 18:34:19,398 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 18:34:19,457 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 18:34:19,457 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-18 18:34:19,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:34:19,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:34:19,459 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 18:34:19,469 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 18:34:19,469 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 18:34:19,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-18 18:34:19,499 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-18 18:34:19,499 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post6#1=0} Honda state: {ULTIMATE.start_main_#t~post6#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-18 18:34:19,508 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-11-18 18:34:19,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:34:19,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:34:19,511 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 18:34:19,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-18 18:34:19,520 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 18:34:19,521 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 18:34:19,552 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-11-18 18:34:19,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:34:19,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:34:19,555 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 18:34:19,560 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-18 18:34:19,560 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 18:34:19,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-18 18:34:19,604 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-18 18:34:19,604 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~k~0#1=0} Honda state: {ULTIMATE.start_main_~k~0#1=0} Generalized eigenvectors: [{ULTIMATE.start_main_~k~0#1=-2}, {ULTIMATE.start_main_~k~0#1=6}, {ULTIMATE.start_main_~k~0#1=-3}] Lambdas: [4, 1, 1] Nus: [1, 0] [2022-11-18 18:34:19,614 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-11-18 18:34:19,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:34:19,615 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:34:19,617 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 18:34:19,624 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 18:34:19,624 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 18:34:19,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-18 18:34:19,650 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-18 18:34:19,650 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post5#1=0} Honda state: {ULTIMATE.start_main_#t~post5#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-18 18:34:19,661 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-11-18 18:34:19,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:34:19,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:34:19,663 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 18:34:19,677 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 18:34:19,677 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 18:34:19,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-11-18 18:34:19,720 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-11-18 18:34:19,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:34:19,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:34:19,722 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 18:34:19,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-11-18 18:34:19,727 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-18 18:34:19,727 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 18:34:19,909 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-18 18:34:19,912 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-11-18 18:34:19,912 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 18:34:19,913 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 18:34:19,913 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 18:34:19,913 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 18:34:19,913 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-18 18:34:19,914 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:34:19,914 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 18:34:19,914 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 18:34:19,914 INFO L133 ssoRankerPreferences]: Filename of dumped script: seq-3.i_Iteration2_Loop [2022-11-18 18:34:19,914 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 18:34:19,914 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 18:34:19,916 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 18:34:19,920 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 18:34:19,925 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 18:34:19,928 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 18:34:19,979 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 18:34:19,979 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-18 18:34:19,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:34:19,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:34:19,981 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 18:34:20,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-11-18 18:34:20,003 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 [2022-11-18 18:34:20,018 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 18:34:20,019 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 18:34:20,019 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 18:34:20,019 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 18:34:20,019 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 18:34:20,020 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 18:34:20,021 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 18:34:20,030 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 18:34:20,044 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-11-18 18:34:20,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:34:20,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:34:20,046 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 18:34:20,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-11-18 18:34:20,050 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 [2022-11-18 18:34:20,062 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 18:34:20,062 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 18:34:20,062 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 18:34:20,062 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 18:34:20,063 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 18:34:20,064 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 18:34:20,064 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 18:34:20,103 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 18:34:20,113 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-11-18 18:34:20,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:34:20,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:34:20,115 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 18:34:20,129 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 [2022-11-18 18:34:20,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-11-18 18:34:20,145 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 18:34:20,145 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 18:34:20,146 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 18:34:20,146 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 18:34:20,146 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 18:34:20,149 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 18:34:20,149 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 18:34:20,159 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 18:34:20,169 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-11-18 18:34:20,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:34:20,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:34:20,172 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 18:34:20,179 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 [2022-11-18 18:34:20,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-11-18 18:34:20,195 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 18:34:20,195 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 18:34:20,195 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 18:34:20,195 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 18:34:20,195 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 18:34:20,197 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 18:34:20,197 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 18:34:20,208 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-18 18:34:20,218 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2022-11-18 18:34:20,218 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-18 18:34:20,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:34:20,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:34:20,220 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 18:34:20,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-11-18 18:34:20,230 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-18 18:34:20,230 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-18 18:34:20,230 INFO L513 LassoAnalysis]: Proved termination. [2022-11-18 18:34:20,231 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i1~0#1, ULTIMATE.start_main_~n1~0#1) = -1*ULTIMATE.start_main_~i1~0#1 + 1*ULTIMATE.start_main_~n1~0#1 Supporting invariants [] [2022-11-18 18:34:20,241 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-11-18 18:34:20,245 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-18 18:34:20,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:34:20,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:20,288 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 18:34:20,289 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:34:20,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:20,314 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 18:34:20,315 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:34:20,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:34:20,317 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2022-11-18 18:34:20,318 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 15 transitions. cyclomatic complexity: 6 Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:34:20,352 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 15 transitions. cyclomatic complexity: 6. Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 17 states and 23 transitions. Complement of second has 4 states. [2022-11-18 18:34:20,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-11-18 18:34:20,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:34:20,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 13 transitions. [2022-11-18 18:34:20,357 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 6 letters. Loop has 1 letters. [2022-11-18 18:34:20,357 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 18:34:20,357 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 7 letters. Loop has 1 letters. [2022-11-18 18:34:20,357 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 18:34:20,358 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 6 letters. Loop has 2 letters. [2022-11-18 18:34:20,358 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 18:34:20,358 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 23 transitions. [2022-11-18 18:34:20,359 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-18 18:34:20,359 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 13 states and 17 transitions. [2022-11-18 18:34:20,360 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2022-11-18 18:34:20,360 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2022-11-18 18:34:20,360 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 17 transitions. [2022-11-18 18:34:20,360 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:34:20,360 INFO L218 hiAutomatonCegarLoop]: Abstraction has 13 states and 17 transitions. [2022-11-18 18:34:20,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 17 transitions. [2022-11-18 18:34:20,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2022-11-18 18:34:20,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 12 states have internal predecessors, (17), 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) [2022-11-18 18:34:20,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 17 transitions. [2022-11-18 18:34:20,367 INFO L240 hiAutomatonCegarLoop]: Abstraction has 13 states and 17 transitions. [2022-11-18 18:34:20,367 INFO L428 stractBuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2022-11-18 18:34:20,367 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-18 18:34:20,367 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 17 transitions. [2022-11-18 18:34:20,369 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-18 18:34:20,369 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 18:34:20,369 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 18:34:20,370 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:34:20,370 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-18 18:34:20,372 INFO L748 eck$LassoCheckResult]: Stem: 167#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 168#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~nondet2#1, main_#t~post3#1, main_#t~post4#1, main_#t~post5#1, main_#t~post6#1, main_#t~post7#1, main_#t~post8#1, main_~n0~0#1, main_~n1~0#1, main_~i0~0#1, main_~k~0#1, main_~i1~0#1, main_~j1~0#1;havoc main_~n0~0#1;havoc main_~n1~0#1;main_~i0~0#1 := 0;main_~k~0#1 := 0;main_~n0~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~n1~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 169#L30 assume !!(-1000000 <= main_~n0~0#1 && main_~n0~0#1 < 1000000); 170#L31 assume !!(-1000000 <= main_~n1~0#1 && main_~n1~0#1 < 1000000); 159#L32-2 assume !(main_~i0~0#1 < main_~n0~0#1); 160#L32-3 main_~i1~0#1 := 0; 162#L37-2 assume !(main_~i1~0#1 < main_~n1~0#1); 163#L37-3 main_~j1~0#1 := 0; 171#L42-2 [2022-11-18 18:34:20,373 INFO L750 eck$LassoCheckResult]: Loop: 171#L42-2 assume !!(main_~j1~0#1 < main_~n0~0#1 + main_~n1~0#1);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~k~0#1 > 0 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 165#L18 assume !(0 == __VERIFIER_assert_~cond#1); 166#L18-2 assume { :end_inline___VERIFIER_assert } true;main_#t~post7#1 := main_~j1~0#1;main_~j1~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1;main_#t~post8#1 := main_~k~0#1;main_~k~0#1 := main_#t~post8#1 - 1;havoc main_#t~post8#1; 171#L42-2 [2022-11-18 18:34:20,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:34:20,373 INFO L85 PathProgramCache]: Analyzing trace with hash 179630292, now seen corresponding path program 1 times [2022-11-18 18:34:20,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:34:20,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060647362] [2022-11-18 18:34:20,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:34:20,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:34:20,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:34:20,394 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 18:34:20,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:34:20,422 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 18:34:20,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:34:20,423 INFO L85 PathProgramCache]: Analyzing trace with hash 76689, now seen corresponding path program 1 times [2022-11-18 18:34:20,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:34:20,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558472177] [2022-11-18 18:34:20,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:34:20,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:34:20,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:34:20,438 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 18:34:20,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:34:20,444 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 18:34:20,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:34:20,445 INFO L85 PathProgramCache]: Analyzing trace with hash -163174946, now seen corresponding path program 1 times [2022-11-18 18:34:20,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:34:20,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728665161] [2022-11-18 18:34:20,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:34:20,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:34:20,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:20,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:34:20,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:34:20,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728665161] [2022-11-18 18:34:20,653 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728665161] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:34:20,653 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:34:20,653 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 18:34:20,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224161964] [2022-11-18 18:34:20,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:34:20,772 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2022-11-18 18:34:20,779 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 18:34:20,780 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 18:34:20,780 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 18:34:20,780 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 18:34:20,781 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-18 18:34:20,782 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:34:20,782 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 18:34:20,782 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 18:34:20,782 INFO L133 ssoRankerPreferences]: Filename of dumped script: seq-3.i_Iteration3_Loop [2022-11-18 18:34:20,783 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 18:34:20,783 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 18:34:20,785 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 18:34:20,801 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 18:34:20,804 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 18:34:20,809 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 18:34:20,818 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 18:34:20,902 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 18:34:20,902 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-18 18:34:20,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:34:20,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:34:20,904 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 18:34:20,922 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 18:34:20,922 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 18:34:20,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-11-18 18:34:20,950 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-18 18:34:20,951 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start___VERIFIER_assert_~cond#1=1, ULTIMATE.start___VERIFIER_assert_#in~cond#1=1} Honda state: {ULTIMATE.start___VERIFIER_assert_~cond#1=1, ULTIMATE.start___VERIFIER_assert_#in~cond#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-18 18:34:20,956 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-11-18 18:34:20,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:34:20,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:34:20,958 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 18:34:20,970 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 18:34:20,970 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 18:34:20,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-11-18 18:34:20,996 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-18 18:34:20,997 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post7#1=0} Honda state: {ULTIMATE.start_main_#t~post7#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-18 18:34:21,006 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-11-18 18:34:21,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:34:21,007 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:34:21,009 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 18:34:21,020 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 18:34:21,020 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 18:34:21,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-11-18 18:34:21,050 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-18 18:34:21,050 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post8#1=0} Honda state: {ULTIMATE.start_main_#t~post8#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-18 18:34:21,055 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2022-11-18 18:34:21,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:34:21,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:34:21,057 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 18:34:21,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-11-18 18:34:21,064 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 18:34:21,064 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 18:34:21,087 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2022-11-18 18:34:21,088 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:34:21,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:34:21,089 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 18:34:21,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-11-18 18:34:21,098 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-18 18:34:21,098 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 18:34:24,808 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-18 18:34:24,813 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2022-11-18 18:34:24,813 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 18:34:24,813 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 18:34:24,813 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 18:34:24,813 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 18:34:24,813 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-18 18:34:24,814 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:34:24,814 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 18:34:24,814 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 18:34:24,814 INFO L133 ssoRankerPreferences]: Filename of dumped script: seq-3.i_Iteration3_Loop [2022-11-18 18:34:24,814 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 18:34:24,814 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 18:34:24,816 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 18:34:24,843 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 18:34:24,846 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 18:34:24,850 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 18:34:24,859 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 18:34:24,967 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 18:34:24,967 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-18 18:34:24,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:34:24,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:34:24,972 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 18:34:24,980 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 [2022-11-18 18:34:24,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-11-18 18:34:24,996 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 18:34:24,997 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 18:34:24,997 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 18:34:24,997 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 18:34:24,997 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 18:34:25,000 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 18:34:25,001 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 18:34:25,027 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 18:34:25,036 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2022-11-18 18:34:25,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:34:25,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:34:25,038 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 18:34:25,044 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 [2022-11-18 18:34:25,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-11-18 18:34:25,059 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 18:34:25,060 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 18:34:25,060 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 18:34:25,060 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 18:34:25,060 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 18:34:25,061 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 18:34:25,061 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 18:34:25,070 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 18:34:25,075 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2022-11-18 18:34:25,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:34:25,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:34:25,077 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 18:34:25,082 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 [2022-11-18 18:34:25,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-11-18 18:34:25,097 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 18:34:25,098 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 18:34:25,098 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 18:34:25,098 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 18:34:25,098 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 18:34:25,100 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 18:34:25,100 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 18:34:25,109 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 18:34:25,114 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2022-11-18 18:34:25,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:34:25,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:34:25,116 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 18:34:25,124 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 [2022-11-18 18:34:25,139 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 18:34:25,140 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 18:34:25,140 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 18:34:25,140 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 18:34:25,140 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 18:34:25,142 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 18:34:25,142 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 18:34:25,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2022-11-18 18:34:25,155 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-18 18:34:25,163 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-18 18:34:25,164 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-18 18:34:25,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:34:25,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:34:25,165 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 18:34:25,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2022-11-18 18:34:25,168 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-18 18:34:25,169 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-18 18:34:25,169 INFO L513 LassoAnalysis]: Proved termination. [2022-11-18 18:34:25,169 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j1~0#1, ULTIMATE.start_main_~n1~0#1, ULTIMATE.start_main_~n0~0#1) = -1*ULTIMATE.start_main_~j1~0#1 + 1*ULTIMATE.start_main_~n1~0#1 + 1*ULTIMATE.start_main_~n0~0#1 Supporting invariants [] [2022-11-18 18:34:25,175 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2022-11-18 18:34:25,177 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-18 18:34:25,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:34:25,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:25,220 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 18:34:25,225 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:34:25,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:25,258 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 18:34:25,259 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:34:25,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:34:25,302 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-11-18 18:34:25,303 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 17 transitions. cyclomatic complexity: 7 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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) [2022-11-18 18:34:25,324 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 17 transitions. cyclomatic complexity: 7. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 16 states and 21 transitions. Complement of second has 4 states. [2022-11-18 18:34:25,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-11-18 18:34:25,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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) [2022-11-18 18:34:25,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 13 transitions. [2022-11-18 18:34:25,327 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 8 letters. Loop has 3 letters. [2022-11-18 18:34:25,328 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 18:34:25,328 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 11 letters. Loop has 3 letters. [2022-11-18 18:34:25,328 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 18:34:25,328 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 8 letters. Loop has 6 letters. [2022-11-18 18:34:25,328 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 18:34:25,329 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 21 transitions. [2022-11-18 18:34:25,332 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-18 18:34:25,333 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 0 states and 0 transitions. [2022-11-18 18:34:25,333 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-18 18:34:25,333 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-18 18:34:25,333 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-18 18:34:25,333 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:34:25,334 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 18:34:25,334 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 18:34:25,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:34:25,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 18:34:25,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-18 18:34:25,342 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 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) [2022-11-18 18:34:25,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:34:25,345 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-11-18 18:34:25,346 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2022-11-18 18:34:25,346 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-18 18:34:25,346 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2022-11-18 18:34:25,346 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-18 18:34:25,347 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-18 18:34:25,347 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-18 18:34:25,347 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:34:25,347 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 18:34:25,347 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 18:34:25,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 18:34:25,348 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 18:34:25,348 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-11-18 18:34:25,349 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-11-18 18:34:25,349 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-18 18:34:25,349 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-11-18 18:34:25,358 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 06:34:25 BoogieIcfgContainer [2022-11-18 18:34:25,358 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-18 18:34:25,359 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 18:34:25,359 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 18:34:25,359 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 18:34:25,360 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:34:17" (3/4) ... [2022-11-18 18:34:25,364 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-18 18:34:25,364 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 18:34:25,366 INFO L158 Benchmark]: Toolchain (without parser) took 8683.14ms. Allocated memory was 113.2MB in the beginning and 144.7MB in the end (delta: 31.5MB). Free memory was 79.3MB in the beginning and 89.3MB in the end (delta: -10.0MB). Peak memory consumption was 20.7MB. Max. memory is 16.1GB. [2022-11-18 18:34:25,369 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 113.2MB. Free memory was 84.1MB in the beginning and 84.1MB in the end (delta: 25.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 18:34:25,375 INFO L158 Benchmark]: CACSL2BoogieTranslator took 322.08ms. Allocated memory is still 113.2MB. Free memory was 79.0MB in the beginning and 89.4MB in the end (delta: -10.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-18 18:34:25,376 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.83ms. Allocated memory is still 113.2MB. Free memory was 89.4MB in the beginning and 87.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 18:34:25,377 INFO L158 Benchmark]: Boogie Preprocessor took 55.49ms. Allocated memory is still 113.2MB. Free memory was 87.8MB in the beginning and 86.8MB in the end (delta: 971.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 18:34:25,377 INFO L158 Benchmark]: RCFGBuilder took 376.01ms. Allocated memory is still 113.2MB. Free memory was 86.8MB in the beginning and 76.3MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-18 18:34:25,377 INFO L158 Benchmark]: BuchiAutomizer took 7847.25ms. Allocated memory was 113.2MB in the beginning and 144.7MB in the end (delta: 31.5MB). Free memory was 76.3MB in the beginning and 90.2MB in the end (delta: -13.9MB). Peak memory consumption was 19.3MB. Max. memory is 16.1GB. [2022-11-18 18:34:25,378 INFO L158 Benchmark]: Witness Printer took 5.57ms. Allocated memory is still 144.7MB. Free memory was 90.2MB in the beginning and 89.3MB in the end (delta: 888.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 18:34:25,380 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 113.2MB. Free memory was 84.1MB in the beginning and 84.1MB in the end (delta: 25.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 322.08ms. Allocated memory is still 113.2MB. Free memory was 79.0MB in the beginning and 89.4MB in the end (delta: -10.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.83ms. Allocated memory is still 113.2MB. Free memory was 89.4MB in the beginning and 87.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.49ms. Allocated memory is still 113.2MB. Free memory was 87.8MB in the beginning and 86.8MB in the end (delta: 971.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 376.01ms. Allocated memory is still 113.2MB. Free memory was 86.8MB in the beginning and 76.3MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 7847.25ms. Allocated memory was 113.2MB in the beginning and 144.7MB in the end (delta: 31.5MB). Free memory was 76.3MB in the beginning and 90.2MB in the end (delta: -13.9MB). Peak memory consumption was 19.3MB. Max. memory is 16.1GB. * Witness Printer took 5.57ms. Allocated memory is still 144.7MB. Free memory was 90.2MB in the beginning and 89.3MB in the end (delta: 888.0kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (1 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function n0 + -1 * i0 and consists of 4 locations. One deterministic module has affine ranking function n1 + -1 * i1 and consists of 3 locations. One deterministic module has affine ranking function -1 * j1 + n0 + n1 and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 7 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 7.7s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 7.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 3. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 45 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 42 mSDsluCounter, 51 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 15 IncrementalHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 38 mSDtfsCounter, 15 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax100 hnf100 lsp59 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq156 hnf93 smp100 dnf100 smp100 tf112 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 79ms VariablesStem: 0 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 4.7s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-11-18 18:34:25,395 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2022-11-18 18:34:25,607 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34571edf-8391-4c6f-a373-cad6d4cd4c70/bin/uautomizer-TMbwUNV5ro/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