./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/MinusUserDefined.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/MinusUserDefined.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 096bafbba8d51323312e8aef69baa45c66c17c65b2ec8717873d6ff292690721 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 16:57:51,263 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 16:57:51,264 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 16:57:51,294 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 16:57:51,294 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 16:57:51,296 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 16:57:51,297 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 16:57:51,299 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 16:57:51,301 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 16:57:51,302 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 16:57:51,303 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 16:57:51,304 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 16:57:51,305 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 16:57:51,306 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 16:57:51,308 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 16:57:51,309 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 16:57:51,310 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 16:57:51,311 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 16:57:51,313 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 16:57:51,315 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 16:57:51,317 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 16:57:51,318 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 16:57:51,320 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 16:57:51,321 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 16:57:51,324 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 16:57:51,325 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 16:57:51,325 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 16:57:51,326 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 16:57:51,327 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 16:57:51,328 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 16:57:51,328 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 16:57:51,329 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 16:57:51,329 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 16:57:51,330 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 16:57:51,331 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 16:57:51,331 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 16:57:51,332 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 16:57:51,332 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 16:57:51,332 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 16:57:51,333 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 16:57:51,333 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 16:57:51,334 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-12-06 16:57:51,358 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 16:57:51,359 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 16:57:51,359 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 16:57:51,359 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 16:57:51,360 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 16:57:51,360 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 16:57:51,360 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 16:57:51,360 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-06 16:57:51,360 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-06 16:57:51,361 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-06 16:57:51,361 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-06 16:57:51,361 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-06 16:57:51,361 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-06 16:57:51,361 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 16:57:51,361 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-06 16:57:51,362 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 16:57:51,362 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 16:57:51,362 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-06 16:57:51,362 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-06 16:57:51,362 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-06 16:57:51,362 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 16:57:51,362 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-06 16:57:51,362 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 16:57:51,362 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-06 16:57:51,363 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 16:57:51,363 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 16:57:51,363 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 16:57:51,363 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 16:57:51,363 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 16:57:51,364 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-06 16:57:51,364 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_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 096bafbba8d51323312e8aef69baa45c66c17c65b2ec8717873d6ff292690721 [2021-12-06 16:57:51,548 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 16:57:51,566 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 16:57:51,567 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 16:57:51,568 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 16:57:51,569 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 16:57:51,569 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/termination-restricted-15/MinusUserDefined.c [2021-12-06 16:57:51,611 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/data/069ac88ce/6fc2f9cd76b14353905881bc0aa1bec7/FLAGf169bcae1 [2021-12-06 16:57:51,981 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 16:57:51,981 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/sv-benchmarks/c/termination-restricted-15/MinusUserDefined.c [2021-12-06 16:57:51,986 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/data/069ac88ce/6fc2f9cd76b14353905881bc0aa1bec7/FLAGf169bcae1 [2021-12-06 16:57:51,996 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/data/069ac88ce/6fc2f9cd76b14353905881bc0aa1bec7 [2021-12-06 16:57:51,998 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 16:57:51,999 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 16:57:52,001 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 16:57:52,001 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 16:57:52,003 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 16:57:52,004 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:57:51" (1/1) ... [2021-12-06 16:57:52,005 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42b254ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:57:52, skipping insertion in model container [2021-12-06 16:57:52,005 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:57:51" (1/1) ... [2021-12-06 16:57:52,011 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 16:57:52,020 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 16:57:52,128 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 16:57:52,131 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 16:57:52,141 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 16:57:52,150 INFO L208 MainTranslator]: Completed translation [2021-12-06 16:57:52,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:57:52 WrapperNode [2021-12-06 16:57:52,150 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 16:57:52,151 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 16:57:52,151 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 16:57:52,151 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 16:57:52,159 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:57:52" (1/1) ... [2021-12-06 16:57:52,163 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:57:52" (1/1) ... [2021-12-06 16:57:52,179 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 30 [2021-12-06 16:57:52,179 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 16:57:52,180 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 16:57:52,180 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 16:57:52,180 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 16:57:52,187 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:57:52" (1/1) ... [2021-12-06 16:57:52,187 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:57:52" (1/1) ... [2021-12-06 16:57:52,187 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:57:52" (1/1) ... [2021-12-06 16:57:52,188 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:57:52" (1/1) ... [2021-12-06 16:57:52,189 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:57:52" (1/1) ... [2021-12-06 16:57:52,192 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:57:52" (1/1) ... [2021-12-06 16:57:52,192 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:57:52" (1/1) ... [2021-12-06 16:57:52,193 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 16:57:52,194 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 16:57:52,194 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 16:57:52,194 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 16:57:52,195 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:57:52" (1/1) ... [2021-12-06 16:57:52,202 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 16:57:52,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 16:57:52,224 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 16:57:52,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-12-06 16:57:52,255 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 16:57:52,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 16:57:52,300 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 16:57:52,301 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 16:57:52,347 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 16:57:52,351 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 16:57:52,352 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-12-06 16:57:52,353 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:57:52 BoogieIcfgContainer [2021-12-06 16:57:52,353 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 16:57:52,354 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-06 16:57:52,354 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-06 16:57:52,356 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-06 16:57:52,357 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 16:57:52,357 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.12 04:57:51" (1/3) ... [2021-12-06 16:57:52,358 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7f2987d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.12 04:57:52, skipping insertion in model container [2021-12-06 16:57:52,358 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 16:57:52,358 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:57:52" (2/3) ... [2021-12-06 16:57:52,358 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7f2987d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.12 04:57:52, skipping insertion in model container [2021-12-06 16:57:52,358 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 16:57:52,358 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:57:52" (3/3) ... [2021-12-06 16:57:52,359 INFO L388 chiAutomizerObserver]: Analyzing ICFG MinusUserDefined.c [2021-12-06 16:57:52,391 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-06 16:57:52,391 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-06 16:57:52,391 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-06 16:57:52,392 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-06 16:57:52,392 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-06 16:57:52,392 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-06 16:57:52,392 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-06 16:57:52,392 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-06 16:57:52,401 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 16:57:52,414 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 3 [2021-12-06 16:57:52,414 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 16:57:52,414 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 16:57:52,418 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-06 16:57:52,418 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-12-06 16:57:52,418 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-06 16:57:52,418 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 16:57:52,419 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 3 [2021-12-06 16:57:52,419 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 16:57:52,419 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 16:57:52,419 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-06 16:57:52,420 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-12-06 16:57:52,424 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 10#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1, main_~res~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~res~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~res~0#1 := 0; 8#L13-2true [2021-12-06 16:57:52,424 INFO L793 eck$LassoCheckResult]: Loop: 8#L13-2true assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0);main_~x~0#1 := main_~x~0#1 - 1;main_~y~0#1 := main_~y~0#1 - 1; 8#L13-2true [2021-12-06 16:57:52,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 16:57:52,429 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-12-06 16:57:52,435 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 16:57:52,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172051361] [2021-12-06 16:57:52,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 16:57:52,437 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 16:57:52,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 16:57:52,491 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 16:57:52,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 16:57:52,504 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 16:57:52,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 16:57:52,507 INFO L85 PathProgramCache]: Analyzing trace with hash 42, now seen corresponding path program 1 times [2021-12-06 16:57:52,507 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 16:57:52,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581875661] [2021-12-06 16:57:52,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 16:57:52,508 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 16:57:52,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 16:57:52,515 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 16:57:52,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 16:57:52,519 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 16:57:52,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 16:57:52,521 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2021-12-06 16:57:52,521 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 16:57:52,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237386318] [2021-12-06 16:57:52,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 16:57:52,521 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 16:57:52,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 16:57:52,527 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 16:57:52,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 16:57:52,531 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 16:57:52,601 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 16:57:52,601 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 16:57:52,602 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 16:57:52,602 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 16:57:52,602 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-06 16:57:52,602 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 16:57:52,602 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 16:57:52,602 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 16:57:52,603 INFO L133 ssoRankerPreferences]: Filename of dumped script: MinusUserDefined.c_Iteration1_Loop [2021-12-06 16:57:52,603 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 16:57:52,603 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 16:57:52,622 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 16:57:52,630 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 16:57:52,634 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 16:57:52,641 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 16:57:52,710 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 16:57:52,711 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-06 16:57:52,713 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 16:57:52,713 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 16:57:52,715 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 16:57:52,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-12-06 16:57:52,717 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 16:57:52,717 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 16:57:52,736 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 16:57:52,736 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-06 16:57:52,756 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-12-06 16:57:52,757 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 16:57:52,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 16:57:52,758 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 16:57:52,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-12-06 16:57:52,759 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 16:57:52,759 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 16:57:52,773 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 16:57:52,774 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-06 16:57:52,793 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2021-12-06 16:57:52,793 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 16:57:52,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 16:57:52,794 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 16:57:52,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-12-06 16:57:52,795 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 16:57:52,795 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 16:57:52,823 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2021-12-06 16:57:52,823 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 16:57:52,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 16:57:52,824 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 16:57:52,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-12-06 16:57:52,826 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-06 16:57:52,826 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 16:57:52,864 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-06 16:57:52,867 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2021-12-06 16:57:52,867 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 16:57:52,867 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 16:57:52,868 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 16:57:52,868 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 16:57:52,868 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-06 16:57:52,868 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 16:57:52,868 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 16:57:52,868 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 16:57:52,868 INFO L133 ssoRankerPreferences]: Filename of dumped script: MinusUserDefined.c_Iteration1_Loop [2021-12-06 16:57:52,868 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 16:57:52,868 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 16:57:52,870 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 16:57:52,874 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 16:57:52,877 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 16:57:52,882 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 16:57:52,919 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 16:57:52,922 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-06 16:57:52,923 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 16:57:52,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 16:57:52,924 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 16:57:52,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-12-06 16:57:52,926 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 16:57:52,934 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 16:57:52,934 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 16:57:52,934 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 16:57:52,934 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 16:57:52,938 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 16:57:52,938 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 16:57:52,942 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 16:57:52,962 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2021-12-06 16:57:52,962 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 16:57:52,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 16:57:52,963 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 16:57:52,964 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-12-06 16:57:52,965 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 16:57:52,972 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 16:57:52,973 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 16:57:52,973 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 16:57:52,973 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 16:57:52,976 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 16:57:52,976 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 16:57:52,980 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 16:57:53,000 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2021-12-06 16:57:53,000 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 16:57:53,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 16:57:53,001 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 16:57:53,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-12-06 16:57:53,002 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 16:57:53,010 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 16:57:53,010 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 16:57:53,010 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 16:57:53,010 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 16:57:53,011 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 16:57:53,012 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 16:57:53,012 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 16:57:53,014 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-06 16:57:53,018 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-12-06 16:57:53,019 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-12-06 16:57:53,020 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 16:57:53,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 16:57:53,024 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 16:57:53,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-12-06 16:57:53,026 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-06 16:57:53,026 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-06 16:57:53,026 INFO L513 LassoAnalysis]: Proved termination. [2021-12-06 16:57:53,026 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2021-12-06 16:57:53,045 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2021-12-06 16:57:53,047 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-06 16:57:53,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 16:57:53,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:53,067 INFO L263 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 16:57:53,068 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 16:57:53,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:53,077 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 16:57:53,077 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 16:57:53,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 16:57:53,102 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-12-06 16:57:53,103 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 16:57:53,146 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 24 states and 40 transitions. Complement of second has 5 states. [2021-12-06 16:57:53,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-12-06 16:57:53,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 16:57:53,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 26 transitions. [2021-12-06 16:57:53,155 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 2 letters. Loop has 1 letters. [2021-12-06 16:57:53,156 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 16:57:53,156 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 3 letters. Loop has 1 letters. [2021-12-06 16:57:53,157 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 16:57:53,157 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 2 letters. Loop has 2 letters. [2021-12-06 16:57:53,157 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 16:57:53,158 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 40 transitions. [2021-12-06 16:57:53,158 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2021-12-06 16:57:53,161 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-06 16:57:53,164 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 10 states and 17 transitions. [2021-12-06 16:57:53,165 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2021-12-06 16:57:53,165 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2021-12-06 16:57:53,165 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 17 transitions. [2021-12-06 16:57:53,165 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-06 16:57:53,165 INFO L681 BuchiCegarLoop]: Abstraction has 10 states and 17 transitions. [2021-12-06 16:57:53,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 17 transitions. [2021-12-06 16:57:53,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2021-12-06 16:57:53,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 8 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 16:57:53,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 16 transitions. [2021-12-06 16:57:53,188 INFO L704 BuchiCegarLoop]: Abstraction has 9 states and 16 transitions. [2021-12-06 16:57:53,188 INFO L587 BuchiCegarLoop]: Abstraction has 9 states and 16 transitions. [2021-12-06 16:57:53,188 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-06 16:57:53,189 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 16 transitions. [2021-12-06 16:57:53,189 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-06 16:57:53,189 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 16:57:53,189 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 16:57:53,189 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-12-06 16:57:53,190 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-06 16:57:53,190 INFO L791 eck$LassoCheckResult]: Stem: 69#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 70#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1, main_~res~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~res~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~res~0#1 := 0; 71#L13-2 assume !(main_~x~0#1 > 0 && main_~y~0#1 > 0); 65#L21-3 [2021-12-06 16:57:53,190 INFO L793 eck$LassoCheckResult]: Loop: 65#L21-3 assume !!(main_~x~0#1 > 0);main_~y~0#1 := 1 + main_~y~0#1;main_~res~0#1 := 1 + main_~res~0#1; 66#L21-2 assume !(main_~x~0#1 > 0 && main_~y~0#1 > 0); 65#L21-3 [2021-12-06 16:57:53,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 16:57:53,190 INFO L85 PathProgramCache]: Analyzing trace with hash 29862, now seen corresponding path program 1 times [2021-12-06 16:57:53,191 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 16:57:53,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238464265] [2021-12-06 16:57:53,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 16:57:53,191 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 16:57:53,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 16:57:53,196 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 16:57:53,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 16:57:53,200 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 16:57:53,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 16:57:53,201 INFO L85 PathProgramCache]: Analyzing trace with hash 1672, now seen corresponding path program 1 times [2021-12-06 16:57:53,201 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 16:57:53,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036772969] [2021-12-06 16:57:53,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 16:57:53,201 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 16:57:53,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 16:57:53,209 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 16:57:53,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 16:57:53,213 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 16:57:53,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 16:57:53,214 INFO L85 PathProgramCache]: Analyzing trace with hash 28698093, now seen corresponding path program 1 times [2021-12-06 16:57:53,214 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 16:57:53,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63472000] [2021-12-06 16:57:53,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 16:57:53,215 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 16:57:53,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 16:57:53,221 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 16:57:53,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 16:57:53,225 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 16:57:53,251 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 16:57:53,251 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 16:57:53,251 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 16:57:53,251 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 16:57:53,251 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-06 16:57:53,252 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 16:57:53,252 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 16:57:53,252 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 16:57:53,252 INFO L133 ssoRankerPreferences]: Filename of dumped script: MinusUserDefined.c_Iteration2_Loop [2021-12-06 16:57:53,252 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 16:57:53,252 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 16:57:53,253 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 16:57:53,255 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 16:57:53,257 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 16:57:53,260 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 16:57:53,264 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 16:57:53,295 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 16:57:53,295 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-06 16:57:53,295 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 16:57:53,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 16:57:53,296 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 16:57:53,297 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-12-06 16:57:53,298 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 16:57:53,298 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 16:57:53,312 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 16:57:53,312 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-06 16:57:53,333 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2021-12-06 16:57:53,334 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 16:57:53,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 16:57:53,334 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 16:57:53,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-12-06 16:57:53,336 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 16:57:53,336 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 16:57:53,349 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 16:57:53,350 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=1} Honda state: {ULTIMATE.start_main_~x~0#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-06 16:57:53,369 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-12-06 16:57:53,369 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 16:57:53,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 16:57:53,370 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 16:57:53,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-12-06 16:57:53,371 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 16:57:53,371 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 16:57:53,398 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2021-12-06 16:57:53,398 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 16:57:53,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 16:57:53,399 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 16:57:53,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-12-06 16:57:53,400 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-06 16:57:53,400 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 16:57:53,429 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 16:57:53,429 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~res~0#1=0} Honda state: {ULTIMATE.start_main_~res~0#1=0} Generalized eigenvectors: [{ULTIMATE.start_main_~res~0#1=-6}, {ULTIMATE.start_main_~res~0#1=7}, {ULTIMATE.start_main_~res~0#1=0}] Lambdas: [1, 1, 13] Nus: [0, 0] [2021-12-06 16:57:53,460 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2021-12-06 16:57:53,460 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 16:57:53,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 16:57:53,461 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 16:57:53,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-12-06 16:57:53,463 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 16:57:53,463 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 16:57:53,491 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-12-06 16:57:53,491 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 16:57:53,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 16:57:53,492 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 16:57:53,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-12-06 16:57:53,493 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-06 16:57:53,494 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 16:57:53,567 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-06 16:57:53,569 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2021-12-06 16:57:53,570 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 16:57:53,570 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 16:57:53,570 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 16:57:53,570 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 16:57:53,570 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-06 16:57:53,570 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 16:57:53,570 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 16:57:53,570 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 16:57:53,570 INFO L133 ssoRankerPreferences]: Filename of dumped script: MinusUserDefined.c_Iteration2_Loop [2021-12-06 16:57:53,570 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 16:57:53,570 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 16:57:53,571 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 16:57:53,573 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 16:57:53,575 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 16:57:53,577 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 16:57:53,579 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 16:57:53,606 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 16:57:53,606 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-06 16:57:53,607 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 16:57:53,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 16:57:53,607 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 16:57:53,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-12-06 16:57:53,609 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 16:57:53,616 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 16:57:53,616 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 16:57:53,616 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 16:57:53,616 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 16:57:53,616 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 16:57:53,617 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 16:57:53,617 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 16:57:53,618 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 16:57:53,637 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2021-12-06 16:57:53,637 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 16:57:53,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 16:57:53,638 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 16:57:53,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-12-06 16:57:53,639 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 16:57:53,647 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 16:57:53,647 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 16:57:53,647 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 16:57:53,647 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 16:57:53,647 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 16:57:53,648 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 16:57:53,648 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 16:57:53,650 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 16:57:53,668 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2021-12-06 16:57:53,668 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 16:57:53,668 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 16:57:53,669 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 16:57:53,670 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-12-06 16:57:53,670 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 16:57:53,678 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 16:57:53,678 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 16:57:53,678 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 16:57:53,678 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 16:57:53,680 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 16:57:53,680 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 16:57:53,683 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 16:57:53,702 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2021-12-06 16:57:53,702 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 16:57:53,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 16:57:53,703 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 16:57:53,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-12-06 16:57:53,704 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 16:57:53,711 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 16:57:53,712 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 16:57:53,712 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 16:57:53,712 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 16:57:53,712 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 16:57:53,713 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 16:57:53,713 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 16:57:53,714 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-06 16:57:53,717 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-12-06 16:57:53,718 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-12-06 16:57:53,718 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 16:57:53,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 16:57:53,719 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 16:57:53,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-12-06 16:57:53,753 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-06 16:57:53,753 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-06 16:57:53,754 INFO L513 LassoAnalysis]: Proved termination. [2021-12-06 16:57:53,754 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = -1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2021-12-06 16:57:53,803 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2021-12-06 16:57:53,803 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-06 16:57:53,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 16:57:53,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:53,816 INFO L263 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 16:57:53,816 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 16:57:53,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:53,822 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-06 16:57:53,823 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 16:57:53,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 16:57:53,851 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-12-06 16:57:53,852 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 16 transitions. cyclomatic complexity: 10 Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 16:57:53,866 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 16 transitions. cyclomatic complexity: 10. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 23 states and 35 transitions. Complement of second has 7 states. [2021-12-06 16:57:53,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-12-06 16:57:53,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 16:57:53,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2021-12-06 16:57:53,867 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 3 letters. Loop has 2 letters. [2021-12-06 16:57:53,868 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 16:57:53,868 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 5 letters. Loop has 2 letters. [2021-12-06 16:57:53,868 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 16:57:53,868 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 3 letters. Loop has 4 letters. [2021-12-06 16:57:53,868 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 16:57:53,868 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 35 transitions. [2021-12-06 16:57:53,869 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-06 16:57:53,870 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 16 states and 24 transitions. [2021-12-06 16:57:53,870 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2021-12-06 16:57:53,870 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2021-12-06 16:57:53,870 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 24 transitions. [2021-12-06 16:57:53,870 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-06 16:57:53,870 INFO L681 BuchiCegarLoop]: Abstraction has 16 states and 24 transitions. [2021-12-06 16:57:53,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 24 transitions. [2021-12-06 16:57:53,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-12-06 16:57:53,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.5) internal successors, (24), 15 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 16:57:53,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 24 transitions. [2021-12-06 16:57:53,872 INFO L704 BuchiCegarLoop]: Abstraction has 16 states and 24 transitions. [2021-12-06 16:57:53,872 INFO L587 BuchiCegarLoop]: Abstraction has 16 states and 24 transitions. [2021-12-06 16:57:53,872 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-06 16:57:53,872 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 24 transitions. [2021-12-06 16:57:53,872 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-06 16:57:53,873 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 16:57:53,873 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 16:57:53,873 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1] [2021-12-06 16:57:53,873 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-06 16:57:53,873 INFO L791 eck$LassoCheckResult]: Stem: 140#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 141#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1, main_~res~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~res~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~res~0#1 := 0; 142#L13-2 assume !(main_~x~0#1 > 0 && main_~y~0#1 > 0); 143#L21-3 assume !!(main_~x~0#1 > 0);main_~y~0#1 := 1 + main_~y~0#1;main_~res~0#1 := 1 + main_~res~0#1; 151#L21-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0);main_~x~0#1 := main_~x~0#1 - 1;main_~y~0#1 := main_~y~0#1 - 1; 148#L21-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0);main_~x~0#1 := main_~x~0#1 - 1;main_~y~0#1 := main_~y~0#1 - 1; 146#L21-2 assume !(main_~x~0#1 > 0 && main_~y~0#1 > 0); 136#L21-3 [2021-12-06 16:57:53,873 INFO L793 eck$LassoCheckResult]: Loop: 136#L21-3 assume !!(main_~x~0#1 > 0);main_~y~0#1 := 1 + main_~y~0#1;main_~res~0#1 := 1 + main_~res~0#1; 137#L21-2 assume !(main_~x~0#1 > 0 && main_~y~0#1 > 0); 136#L21-3 [2021-12-06 16:57:53,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 16:57:53,874 INFO L85 PathProgramCache]: Analyzing trace with hash 1809066509, now seen corresponding path program 1 times [2021-12-06 16:57:53,874 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 16:57:53,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570266972] [2021-12-06 16:57:53,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 16:57:53,874 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 16:57:53,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:53,915 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 16:57:53,915 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 16:57:53,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570266972] [2021-12-06 16:57:53,915 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570266972] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 16:57:53,916 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 16:57:53,916 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 16:57:53,916 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072310269] [2021-12-06 16:57:53,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 16:57:53,918 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-06 16:57:53,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 16:57:53,918 INFO L85 PathProgramCache]: Analyzing trace with hash 1672, now seen corresponding path program 2 times [2021-12-06 16:57:53,919 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 16:57:53,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859593987] [2021-12-06 16:57:53,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 16:57:53,919 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 16:57:53,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 16:57:53,922 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 16:57:53,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 16:57:53,926 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 16:57:53,950 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 16:57:53,950 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 16:57:53,950 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 16:57:53,950 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 16:57:53,951 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-06 16:57:53,951 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 16:57:53,951 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 16:57:53,951 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 16:57:53,951 INFO L133 ssoRankerPreferences]: Filename of dumped script: MinusUserDefined.c_Iteration3_Loop [2021-12-06 16:57:53,951 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 16:57:53,951 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 16:57:53,952 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 16:57:53,954 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 16:57:53,958 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 16:57:53,960 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 16:57:53,961 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 16:57:53,991 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 16:57:53,991 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-06 16:57:53,991 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 16:57:53,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 16:57:53,992 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 16:57:53,992 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-12-06 16:57:53,993 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 16:57:53,993 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 16:57:54,010 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 16:57:54,010 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=1} Honda state: {ULTIMATE.start_main_~x~0#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-06 16:57:54,030 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-12-06 16:57:54,030 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 16:57:54,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 16:57:54,031 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 16:57:54,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-12-06 16:57:54,032 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 16:57:54,032 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 16:57:54,060 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-12-06 16:57:54,060 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 16:57:54,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 16:57:54,061 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 16:57:54,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-12-06 16:57:54,062 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-06 16:57:54,062 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 16:57:54,133 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-06 16:57:54,135 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2021-12-06 16:57:54,135 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 16:57:54,136 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 16:57:54,136 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 16:57:54,136 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 16:57:54,136 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-06 16:57:54,136 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 16:57:54,136 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 16:57:54,136 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 16:57:54,136 INFO L133 ssoRankerPreferences]: Filename of dumped script: MinusUserDefined.c_Iteration3_Loop [2021-12-06 16:57:54,136 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 16:57:54,136 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 16:57:54,137 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 16:57:54,139 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 16:57:54,142 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 16:57:54,144 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 16:57:54,145 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 16:57:54,168 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 16:57:54,168 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-06 16:57:54,168 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 16:57:54,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 16:57:54,169 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 16:57:54,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-12-06 16:57:54,170 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 16:57:54,179 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 16:57:54,179 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 16:57:54,179 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 16:57:54,179 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 16:57:54,179 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 16:57:54,180 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 16:57:54,180 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 16:57:54,181 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 16:57:54,208 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-12-06 16:57:54,209 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 16:57:54,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 16:57:54,209 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 16:57:54,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-12-06 16:57:54,210 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 16:57:54,218 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 16:57:54,218 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 16:57:54,218 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 16:57:54,218 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 16:57:54,218 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 16:57:54,219 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 16:57:54,219 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 16:57:54,221 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-06 16:57:54,223 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-12-06 16:57:54,223 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-12-06 16:57:54,223 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 16:57:54,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 16:57:54,224 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 16:57:54,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-12-06 16:57:54,225 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-06 16:57:54,225 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-06 16:57:54,225 INFO L513 LassoAnalysis]: Proved termination. [2021-12-06 16:57:54,225 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = -1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2021-12-06 16:57:54,243 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2021-12-06 16:57:54,244 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-06 16:57:54,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 16:57:54,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:54,254 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 16:57:54,254 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 16:57:54,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 16:57:54,265 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-06 16:57:54,265 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 16:57:54,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 16:57:54,278 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-12-06 16:57:54,278 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 24 transitions. cyclomatic complexity: 13 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 16:57:54,293 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 24 transitions. cyclomatic complexity: 13. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 44 states and 66 transitions. Complement of second has 7 states. [2021-12-06 16:57:54,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-12-06 16:57:54,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 16:57:54,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2021-12-06 16:57:54,294 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 7 letters. Loop has 2 letters. [2021-12-06 16:57:54,294 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 16:57:54,294 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 9 letters. Loop has 2 letters. [2021-12-06 16:57:54,294 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 16:57:54,294 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 7 letters. Loop has 4 letters. [2021-12-06 16:57:54,295 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 16:57:54,295 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 44 states and 66 transitions. [2021-12-06 16:57:54,296 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-06 16:57:54,297 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 44 states to 31 states and 46 transitions. [2021-12-06 16:57:54,297 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2021-12-06 16:57:54,297 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2021-12-06 16:57:54,297 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 46 transitions. [2021-12-06 16:57:54,297 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-06 16:57:54,297 INFO L681 BuchiCegarLoop]: Abstraction has 31 states and 46 transitions. [2021-12-06 16:57:54,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 46 transitions. [2021-12-06 16:57:54,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 20. [2021-12-06 16:57:54,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 20 states have (on average 1.55) internal successors, (31), 19 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 16:57:54,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 31 transitions. [2021-12-06 16:57:54,299 INFO L704 BuchiCegarLoop]: Abstraction has 20 states and 31 transitions. [2021-12-06 16:57:54,300 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 16:57:54,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 16:57:54,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 16:57:54,302 INFO L87 Difference]: Start difference. First operand 20 states and 31 transitions. Second operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 16:57:54,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 16:57:54,323 INFO L93 Difference]: Finished difference Result 14 states and 19 transitions. [2021-12-06 16:57:54,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 16:57:54,324 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 19 transitions. [2021-12-06 16:57:54,325 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-06 16:57:54,325 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 0 states and 0 transitions. [2021-12-06 16:57:54,325 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-12-06 16:57:54,325 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-12-06 16:57:54,325 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-12-06 16:57:54,325 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 16:57:54,325 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 16:57:54,325 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 16:57:54,325 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 16:57:54,325 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-12-06 16:57:54,325 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-12-06 16:57:54,325 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-06 16:57:54,325 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-12-06 16:57:54,331 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.12 04:57:54 BoogieIcfgContainer [2021-12-06 16:57:54,331 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-06 16:57:54,331 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 16:57:54,331 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 16:57:54,331 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 16:57:54,331 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:57:52" (3/4) ... [2021-12-06 16:57:54,334 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-06 16:57:54,334 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 16:57:54,334 INFO L158 Benchmark]: Toolchain (without parser) took 2334.80ms. Allocated memory was 132.1MB in the beginning and 169.9MB in the end (delta: 37.7MB). Free memory was 91.3MB in the beginning and 84.8MB in the end (delta: 6.5MB). Peak memory consumption was 44.7MB. Max. memory is 16.1GB. [2021-12-06 16:57:54,335 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 132.1MB. Free memory is still 107.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 16:57:54,335 INFO L158 Benchmark]: CACSL2BoogieTranslator took 149.74ms. Allocated memory is still 132.1MB. Free memory was 91.1MB in the beginning and 105.4MB in the end (delta: -14.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-06 16:57:54,335 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.26ms. Allocated memory is still 132.1MB. Free memory was 105.4MB in the beginning and 103.8MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 16:57:54,336 INFO L158 Benchmark]: Boogie Preprocessor took 13.51ms. Allocated memory is still 132.1MB. Free memory was 103.8MB in the beginning and 102.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 16:57:54,336 INFO L158 Benchmark]: RCFGBuilder took 159.37ms. Allocated memory is still 132.1MB. Free memory was 102.7MB in the beginning and 94.4MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-06 16:57:54,337 INFO L158 Benchmark]: BuchiAutomizer took 1976.94ms. Allocated memory was 132.1MB in the beginning and 169.9MB in the end (delta: 37.7MB). Free memory was 94.4MB in the beginning and 84.8MB in the end (delta: 9.6MB). Peak memory consumption was 49.5MB. Max. memory is 16.1GB. [2021-12-06 16:57:54,337 INFO L158 Benchmark]: Witness Printer took 2.80ms. Allocated memory is still 169.9MB. Free memory is still 84.8MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 16:57:54,339 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 132.1MB. Free memory is still 107.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 149.74ms. Allocated memory is still 132.1MB. Free memory was 91.1MB in the beginning and 105.4MB in the end (delta: -14.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.26ms. Allocated memory is still 132.1MB. Free memory was 105.4MB in the beginning and 103.8MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 13.51ms. Allocated memory is still 132.1MB. Free memory was 103.8MB in the beginning and 102.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 159.37ms. Allocated memory is still 132.1MB. Free memory was 102.7MB in the beginning and 94.4MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1976.94ms. Allocated memory was 132.1MB in the beginning and 169.9MB in the end (delta: 37.7MB). Free memory was 94.4MB in the beginning and 84.8MB in the end (delta: 9.6MB). Peak memory consumption was 49.5MB. Max. memory is 16.1GB. * Witness Printer took 2.80ms. Allocated memory is still 169.9MB. Free memory is still 84.8MB. 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 x and consists of 4 locations. One deterministic module has affine ranking function -1 * y and consists of 4 locations. One deterministic module has affine ranking function -1 * y and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.9s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 1.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 12 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 16 states and ocurred in iteration 2. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 24 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 21 mSDsluCounter, 25 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 46 IncrementalHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 20 mSDtfsCounter, 46 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax166 hnf100 lsp33 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie103 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 19ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-12-06 16:57:54,375 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2021-12-06 16:57:54,595 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2021-12-06 16:57:54,797 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d242de75-0751-4fec-856a-8832bfc7766f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE