./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/b.09-no-inv_assume.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/b.09-no-inv_assume.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a --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 b5b0de00a094cfc3c067192c4a42cb6740c5eeeb1cc4308b3b5e47b47532a575 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-21 17:29:48,248 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 17:29:48,251 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 17:29:48,297 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 17:29:48,300 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 17:29:48,304 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 17:29:48,307 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 17:29:48,312 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 17:29:48,314 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 17:29:48,320 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 17:29:48,322 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 17:29:48,324 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 17:29:48,326 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 17:29:48,328 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 17:29:48,330 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 17:29:48,334 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 17:29:48,336 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 17:29:48,337 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 17:29:48,341 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 17:29:48,346 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 17:29:48,349 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 17:29:48,351 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 17:29:48,353 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 17:29:48,354 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 17:29:48,366 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 17:29:48,368 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 17:29:48,368 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 17:29:48,370 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 17:29:48,371 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 17:29:48,372 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 17:29:48,374 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 17:29:48,375 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 17:29:48,377 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 17:29:48,378 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 17:29:48,379 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 17:29:48,380 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 17:29:48,380 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 17:29:48,381 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 17:29:48,381 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 17:29:48,383 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 17:29:48,384 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 17:29:48,385 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-11-21 17:29:48,431 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 17:29:48,432 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 17:29:48,432 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 17:29:48,433 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 17:29:48,434 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 17:29:48,435 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 17:29:48,435 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 17:29:48,435 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-21 17:29:48,436 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-21 17:29:48,436 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-21 17:29:48,437 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-21 17:29:48,438 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-21 17:29:48,438 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-21 17:29:48,438 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 17:29:48,439 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 17:29:48,439 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 17:29:48,439 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 17:29:48,440 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-21 17:29:48,440 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-21 17:29:48,440 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-21 17:29:48,441 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 17:29:48,441 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-21 17:29:48,441 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 17:29:48,442 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-21 17:29:48,442 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 17:29:48,442 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 17:29:48,443 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 17:29:48,443 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 17:29:48,445 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-21 17:29:48,446 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_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b5b0de00a094cfc3c067192c4a42cb6740c5eeeb1cc4308b3b5e47b47532a575 [2022-11-21 17:29:48,743 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 17:29:48,771 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 17:29:48,774 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 17:29:48,776 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 17:29:48,777 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 17:29:48,778 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/termination-restricted-15/b.09-no-inv_assume.c [2022-11-21 17:29:51,990 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 17:29:52,204 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 17:29:52,205 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/sv-benchmarks/c/termination-restricted-15/b.09-no-inv_assume.c [2022-11-21 17:29:52,212 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/data/fce7d1054/ef9cbc0ec88e4c7c9babe2aaa39f7e27/FLAG1bdce0b78 [2022-11-21 17:29:52,230 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/data/fce7d1054/ef9cbc0ec88e4c7c9babe2aaa39f7e27 [2022-11-21 17:29:52,233 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 17:29:52,235 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 17:29:52,237 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 17:29:52,237 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 17:29:52,242 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 17:29:52,243 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:29:52" (1/1) ... [2022-11-21 17:29:52,244 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60ca20d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:52, skipping insertion in model container [2022-11-21 17:29:52,245 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:29:52" (1/1) ... [2022-11-21 17:29:52,255 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 17:29:52,279 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 17:29:52,505 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:29:52,512 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 17:29:52,532 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:29:52,547 INFO L208 MainTranslator]: Completed translation [2022-11-21 17:29:52,548 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:52 WrapperNode [2022-11-21 17:29:52,548 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 17:29:52,550 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 17:29:52,550 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 17:29:52,550 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 17:29:52,559 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:52" (1/1) ... [2022-11-21 17:29:52,567 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:52" (1/1) ... [2022-11-21 17:29:52,587 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2022-11-21 17:29:52,588 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 17:29:52,589 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 17:29:52,590 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 17:29:52,590 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 17:29:52,601 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:52" (1/1) ... [2022-11-21 17:29:52,602 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:52" (1/1) ... [2022-11-21 17:29:52,603 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:52" (1/1) ... [2022-11-21 17:29:52,603 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:52" (1/1) ... [2022-11-21 17:29:52,606 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:52" (1/1) ... [2022-11-21 17:29:52,613 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:52" (1/1) ... [2022-11-21 17:29:52,614 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:52" (1/1) ... [2022-11-21 17:29:52,615 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:52" (1/1) ... [2022-11-21 17:29:52,617 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 17:29:52,618 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 17:29:52,619 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 17:29:52,619 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 17:29:52,620 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:52" (1/1) ... [2022-11-21 17:29:52,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:29:52,643 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:29:52,665 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 17:29:52,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-21 17:29:52,718 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 17:29:52,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 17:29:52,817 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 17:29:52,820 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 17:29:52,937 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 17:29:52,946 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 17:29:52,946 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-21 17:29:52,948 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:29:52 BoogieIcfgContainer [2022-11-21 17:29:52,949 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 17:29:52,951 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-21 17:29:52,951 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-21 17:29:52,956 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-21 17:29:52,957 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-21 17:29:52,958 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.11 05:29:52" (1/3) ... [2022-11-21 17:29:52,959 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6918e414 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.11 05:29:52, skipping insertion in model container [2022-11-21 17:29:52,960 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-21 17:29:52,960 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:52" (2/3) ... [2022-11-21 17:29:52,963 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6918e414 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.11 05:29:52, skipping insertion in model container [2022-11-21 17:29:52,963 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-21 17:29:52,964 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:29:52" (3/3) ... [2022-11-21 17:29:52,966 INFO L332 chiAutomizerObserver]: Analyzing ICFG b.09-no-inv_assume.c [2022-11-21 17:29:53,062 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-21 17:29:53,063 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-21 17:29:53,063 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-21 17:29:53,063 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-21 17:29:53,064 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-21 17:29:53,064 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-21 17:29:53,064 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-21 17:29:53,065 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-21 17:29:53,074 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:29:53,101 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-21 17:29:53,102 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-21 17:29:53,102 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-21 17:29:53,109 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-11-21 17:29:53,109 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-21 17:29:53,109 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-21 17:29:53,110 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:29:53,112 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-21 17:29:53,112 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-21 17:29:53,112 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-21 17:29:53,113 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-11-21 17:29:53,140 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-21 17:29:53,151 INFO L748 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 9#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_~c~0#1, main_~x~0#1, main_~y~0#1;havoc main_~c~0#1;havoc main_~x~0#1;havoc main_~y~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_~c~0#1 := 0; 10#L11true assume main_~x~0#1 > 0 && main_~y~0#1 > 0; 2#L12-2true [2022-11-21 17:29:53,152 INFO L750 eck$LassoCheckResult]: Loop: 2#L12-2true assume !!!(0 == main_~x~0#1); 6#L13true assume main_~x~0#1 > main_~y~0#1;main_~x~0#1 := main_~y~0#1; 8#L13-2true main_~c~0#1 := 1 + main_~c~0#1; 2#L12-2true [2022-11-21 17:29:53,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:29:53,163 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2022-11-21 17:29:53,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:29:53,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84215784] [2022-11-21 17:29:53,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:29:53,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:29:53,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 17:29:53,311 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 17:29:53,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 17:29:53,336 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 17:29:53,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:29:53,340 INFO L85 PathProgramCache]: Analyzing trace with hash 43793, now seen corresponding path program 1 times [2022-11-21 17:29:53,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:29:53,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070273739] [2022-11-21 17:29:53,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:29:53,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:29:53,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 17:29:53,372 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 17:29:53,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 17:29:53,394 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 17:29:53,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:29:53,403 INFO L85 PathProgramCache]: Analyzing trace with hash 889513680, now seen corresponding path program 1 times [2022-11-21 17:29:53,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:29:53,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149872388] [2022-11-21 17:29:53,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:29:53,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:29:53,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 17:29:53,414 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 17:29:53,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 17:29:53,434 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 17:29:53,572 INFO L210 LassoAnalysis]: Preferences: [2022-11-21 17:29:53,572 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-21 17:29:53,573 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-21 17:29:53,574 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-21 17:29:53,574 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-21 17:29:53,575 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:29:53,575 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-21 17:29:53,575 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-21 17:29:53,575 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.09-no-inv_assume.c_Iteration1_Loop [2022-11-21 17:29:53,575 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-21 17:29:53,576 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-21 17:29:53,613 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:29:53,656 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:29:53,670 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:29:53,688 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:29:53,814 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-21 17:29:53,815 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-21 17:29:53,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:29:53,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:29:53,821 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 17:29:53,833 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-21 17:29:53,833 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 17:29:53,846 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-21 17:29:53,862 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-21 17:29:53,863 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: [] [2022-11-21 17:29:53,872 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-21 17:29:53,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:29:53,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:29:53,876 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 17:29:53,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-21 17:29:53,885 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-21 17:29:53,885 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 17:29:53,908 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-21 17:29:53,908 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: [] [2022-11-21 17:29:53,917 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-21 17:29:53,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:29:53,918 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:29:53,920 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 17:29:53,929 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-21 17:29:53,929 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 17:29:53,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-21 17:29:53,963 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-21 17:29:53,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:29:53,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:29:53,966 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 17:29:53,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-21 17:29:53,983 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-21 17:29:53,983 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 17:29:54,184 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-21 17:29:54,192 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-21 17:29:54,192 INFO L210 LassoAnalysis]: Preferences: [2022-11-21 17:29:54,193 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-21 17:29:54,193 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-21 17:29:54,193 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-21 17:29:54,193 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-21 17:29:54,193 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:29:54,193 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-21 17:29:54,193 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-21 17:29:54,193 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.09-no-inv_assume.c_Iteration1_Loop [2022-11-21 17:29:54,194 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-21 17:29:54,194 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-21 17:29:54,201 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:29:54,217 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:29:54,222 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:29:54,233 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:29:54,320 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-21 17:29:54,325 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-21 17:29:54,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:29:54,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:29:54,328 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 17:29:54,348 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-21 17:29:54,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-21 17:29:54,364 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 17:29:54,364 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 17:29:54,365 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 17:29:54,365 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 17:29:54,378 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-21 17:29:54,379 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-21 17:29:54,408 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 17:29:54,417 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-11-21 17:29:54,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:29:54,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:29:54,419 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 17:29:54,428 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-21 17:29:54,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-21 17:29:54,442 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 17:29:54,442 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 17:29:54,442 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 17:29:54,442 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 17:29:54,446 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-21 17:29:54,446 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-21 17:29:54,460 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 17:29:54,469 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-11-21 17:29:54,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:29:54,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:29:54,472 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 17:29:54,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-21 17:29:54,477 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-21 17:29:54,490 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 17:29:54,490 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-21 17:29:54,490 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 17:29:54,491 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-11-21 17:29:54,491 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 17:29:54,494 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-11-21 17:29:54,494 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-21 17:29:54,516 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-21 17:29:54,530 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2022-11-21 17:29:54,530 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-21 17:29:54,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:29:54,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:29:54,558 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 17:29:54,560 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-21 17:29:54,561 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-21 17:29:54,561 INFO L513 LassoAnalysis]: Proved termination. [2022-11-21 17:29:54,562 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_~x~0#1) = -1*ULTIMATE.start_main_~y~0#1 + 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2022-11-21 17:29:54,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-21 17:29:54,568 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2022-11-21 17:29:54,580 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-21 17:29:54,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:29:54,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:29:54,631 INFO L263 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-21 17:29:54,632 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:29:54,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:29:54,667 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-21 17:29:54,667 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:29:54,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:29:54,766 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-11-21 17:29:54,769 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:29:54,814 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 30 states and 37 transitions. Complement of second has 5 states. [2022-11-21 17:29:54,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-11-21 17:29:54,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:29:54,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 23 transitions. [2022-11-21 17:29:54,824 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 3 letters. Loop has 3 letters. [2022-11-21 17:29:54,826 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-21 17:29:54,826 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 6 letters. Loop has 3 letters. [2022-11-21 17:29:54,826 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-21 17:29:54,826 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 3 letters. Loop has 6 letters. [2022-11-21 17:29:54,827 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-21 17:29:54,828 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 37 transitions. [2022-11-21 17:29:54,831 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-21 17:29:54,835 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 13 states and 16 transitions. [2022-11-21 17:29:54,836 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2022-11-21 17:29:54,837 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2022-11-21 17:29:54,837 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 16 transitions. [2022-11-21 17:29:54,838 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-21 17:29:54,838 INFO L218 hiAutomatonCegarLoop]: Abstraction has 13 states and 16 transitions. [2022-11-21 17:29:54,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 16 transitions. [2022-11-21 17:29:54,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 11. [2022-11-21 17:29:54,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:29:54,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2022-11-21 17:29:54,870 INFO L240 hiAutomatonCegarLoop]: Abstraction has 11 states and 14 transitions. [2022-11-21 17:29:54,871 INFO L428 stractBuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2022-11-21 17:29:54,871 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-21 17:29:54,871 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 14 transitions. [2022-11-21 17:29:54,872 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-21 17:29:54,872 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-21 17:29:54,872 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-21 17:29:54,873 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-11-21 17:29:54,873 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-21 17:29:54,873 INFO L748 eck$LassoCheckResult]: Stem: 85#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 86#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_~c~0#1, main_~x~0#1, main_~y~0#1;havoc main_~c~0#1;havoc main_~x~0#1;havoc main_~y~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_~c~0#1 := 0; 90#L11 assume main_~x~0#1 > 0 && main_~y~0#1 > 0; 91#L12-2 assume !!!(0 == main_~x~0#1); 82#L13 [2022-11-21 17:29:54,873 INFO L750 eck$LassoCheckResult]: Loop: 82#L13 assume !(main_~x~0#1 > main_~y~0#1);main_~x~0#1 := main_~x~0#1 - 1; 87#L13-2 main_~c~0#1 := 1 + main_~c~0#1; 81#L12-2 assume !!!(0 == main_~x~0#1); 82#L13 [2022-11-21 17:29:54,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:29:54,874 INFO L85 PathProgramCache]: Analyzing trace with hash 925612, now seen corresponding path program 1 times [2022-11-21 17:29:54,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:29:54,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902150160] [2022-11-21 17:29:54,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:29:54,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:29:54,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 17:29:54,882 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 17:29:54,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 17:29:54,886 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 17:29:54,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:29:54,888 INFO L85 PathProgramCache]: Analyzing trace with hash 48715, now seen corresponding path program 1 times [2022-11-21 17:29:54,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:29:54,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224086999] [2022-11-21 17:29:54,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:29:54,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:29:54,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 17:29:54,895 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 17:29:54,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 17:29:54,900 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 17:29:54,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:29:54,901 INFO L85 PathProgramCache]: Analyzing trace with hash 1805122240, now seen corresponding path program 1 times [2022-11-21 17:29:54,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:29:54,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278225982] [2022-11-21 17:29:54,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:29:54,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:29:54,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 17:29:54,911 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 17:29:54,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 17:29:54,919 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 17:29:54,954 INFO L210 LassoAnalysis]: Preferences: [2022-11-21 17:29:54,955 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-21 17:29:54,955 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-21 17:29:54,955 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-21 17:29:54,955 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-21 17:29:54,955 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:29:54,955 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-21 17:29:54,956 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-21 17:29:54,956 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.09-no-inv_assume.c_Iteration2_Loop [2022-11-21 17:29:54,956 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-21 17:29:54,956 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-21 17:29:54,958 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:29:54,962 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:29:54,966 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:29:54,980 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:29:55,100 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-21 17:29:55,100 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-21 17:29:55,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:29:55,101 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:29:55,107 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 17:29:55,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-11-21 17:29:55,126 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-21 17:29:55,126 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 17:29:55,149 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-21 17:29:55,149 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: [] [2022-11-21 17:29:55,156 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-11-21 17:29:55,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:29:55,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:29:55,160 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 17:29:55,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-11-21 17:29:55,162 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-21 17:29:55,163 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 17:29:55,192 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-21 17:29:55,192 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-21 17:29:55,199 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-11-21 17:29:55,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:29:55,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:29:55,204 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 17:29:55,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-11-21 17:29:55,212 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-21 17:29:55,213 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 17:29:55,261 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-11-21 17:29:55,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:29:55,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:29:55,263 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 17:29:55,267 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-21 17:29:55,267 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 17:29:55,282 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-11-21 17:29:55,306 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-21 17:29:55,306 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0#1=0} Honda state: {ULTIMATE.start_main_~c~0#1=0} Generalized eigenvectors: [{ULTIMATE.start_main_~c~0#1=4}, {ULTIMATE.start_main_~c~0#1=-8}, {ULTIMATE.start_main_~c~0#1=5}] Lambdas: [3, 1, 1] Nus: [1, 0] [2022-11-21 17:29:55,317 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-11-21 17:29:55,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:29:55,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:29:55,321 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 17:29:55,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-11-21 17:29:55,332 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-21 17:29:55,332 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 17:29:55,363 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-11-21 17:29:55,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:29:55,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:29:55,366 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 17:29:55,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-11-21 17:29:55,369 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-21 17:29:55,370 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 17:29:55,482 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-21 17:29:55,483 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=-6, ULTIMATE.start_main_~y~0#1=-6} Honda state: {ULTIMATE.start_main_~x~0#1=-6, ULTIMATE.start_main_~y~0#1=-6} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~y~0#1=0}, {ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~y~0#1=0}, {ULTIMATE.start_main_~x~0#1=-1, ULTIMATE.start_main_~y~0#1=0}] Lambdas: [2, 0, 1] Nus: [1, 0] [2022-11-21 17:29:55,496 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-11-21 17:29:55,539 INFO L210 LassoAnalysis]: Preferences: [2022-11-21 17:29:55,539 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-21 17:29:55,539 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-21 17:29:55,540 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-21 17:29:55,540 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-21 17:29:55,540 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:29:55,540 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-21 17:29:55,540 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-21 17:29:55,540 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.09-no-inv_assume.c_Iteration2_Lasso [2022-11-21 17:29:55,540 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-21 17:29:55,541 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-21 17:29:55,543 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:29:55,547 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:29:55,550 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:29:55,553 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:29:55,557 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:29:55,561 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:29:55,585 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-11-21 17:29:55,598 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:29:55,720 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-21 17:29:55,721 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-21 17:29:55,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:29:55,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:29:55,723 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 17:29:55,732 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-21 17:29:55,732 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 17:29:55,745 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-11-21 17:29:55,755 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-21 17:29:55,755 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_4=0} Honda state: {v_rep~unnamed0~0~false_4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-21 17:29:55,764 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-11-21 17:29:55,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:29:55,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:29:55,765 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 17:29:55,774 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-21 17:29:55,774 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 17:29:55,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-11-21 17:29:55,797 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-21 17:29:55,797 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1#1=0} Honda state: {ULTIMATE.start_main_#t~nondet1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-21 17:29:55,806 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-11-21 17:29:55,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:29:55,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:29:55,808 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 17:29:55,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-11-21 17:29:55,816 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-21 17:29:55,816 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 17:29:55,851 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-21 17:29:55,852 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res#1=0} Honda state: {ULTIMATE.start_main_#res#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-21 17:29:55,865 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-11-21 17:29:55,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:29:55,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:29:55,867 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 17:29:55,871 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-21 17:29:55,871 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 17:29:55,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-11-21 17:29:55,895 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-21 17:29:55,895 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0#1=0} Honda state: {ULTIMATE.start_main_#t~nondet0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-21 17:29:55,911 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2022-11-21 17:29:55,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:29:55,912 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:29:55,914 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 17:29:55,924 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-21 17:29:55,924 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 17:29:55,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-11-21 17:29:55,948 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-21 17:29:55,948 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_4=1} Honda state: {v_rep~unnamed0~0~true_4=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-21 17:29:55,956 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2022-11-21 17:29:55,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:29:55,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:29:55,958 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 17:29:55,969 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-21 17:29:55,969 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 17:29:55,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-11-21 17:29:56,003 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2022-11-21 17:29:56,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:29:56,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:29:56,004 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 17:29:56,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-11-21 17:29:56,008 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-21 17:29:56,008 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 17:29:56,136 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-21 17:29:56,139 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2022-11-21 17:29:56,139 INFO L210 LassoAnalysis]: Preferences: [2022-11-21 17:29:56,140 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-21 17:29:56,140 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-21 17:29:56,140 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-21 17:29:56,140 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-21 17:29:56,140 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:29:56,140 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-21 17:29:56,140 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-21 17:29:56,140 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.09-no-inv_assume.c_Iteration2_Lasso [2022-11-21 17:29:56,140 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-21 17:29:56,140 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-21 17:29:56,142 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:29:56,156 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:29:56,160 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:29:56,163 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:29:56,165 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:29:56,172 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:29:56,175 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:29:56,289 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-21 17:29:56,289 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-21 17:29:56,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:29:56,290 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:29:56,291 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 17:29:56,300 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-21 17:29:56,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-11-21 17:29:56,313 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 17:29:56,313 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 17:29:56,313 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 17:29:56,314 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 17:29:56,316 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-21 17:29:56,317 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-21 17:29:56,343 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 17:29:56,351 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2022-11-21 17:29:56,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:29:56,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:29:56,353 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 17:29:56,357 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-21 17:29:56,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-11-21 17:29:56,370 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 17:29:56,371 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 17:29:56,371 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 17:29:56,371 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 17:29:56,374 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-21 17:29:56,374 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-21 17:29:56,399 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 17:29:56,403 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2022-11-21 17:29:56,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:29:56,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:29:56,406 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 17:29:56,410 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-21 17:29:56,411 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2022-11-21 17:29:56,426 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 17:29:56,426 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-21 17:29:56,426 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 17:29:56,426 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 17:29:56,426 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 17:29:56,427 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-21 17:29:56,427 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-21 17:29:56,454 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 17:29:56,463 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2022-11-21 17:29:56,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:29:56,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:29:56,466 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 17:29:56,472 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-21 17:29:56,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2022-11-21 17:29:56,486 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 17:29:56,487 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-21 17:29:56,487 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 17:29:56,487 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 17:29:56,487 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 17:29:56,488 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-21 17:29:56,488 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-21 17:29:56,497 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 17:29:56,501 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2022-11-21 17:29:56,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:29:56,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:29:56,503 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 17:29:56,508 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-21 17:29:56,522 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 17:29:56,523 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 17:29:56,523 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 17:29:56,523 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 17:29:56,526 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-21 17:29:56,526 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-21 17:29:56,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2022-11-21 17:29:56,537 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 17:29:56,547 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2022-11-21 17:29:56,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:29:56,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:29:56,548 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 17:29:56,553 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-21 17:29:56,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2022-11-21 17:29:56,567 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 17:29:56,567 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-21 17:29:56,567 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 17:29:56,567 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 17:29:56,567 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 17:29:56,568 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-21 17:29:56,568 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-21 17:29:56,577 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 17:29:56,586 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2022-11-21 17:29:56,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:29:56,587 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:29:56,588 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 17:29:56,592 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-21 17:29:56,606 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 17:29:56,607 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 17:29:56,607 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-11-21 17:29:56,607 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 17:29:56,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2022-11-21 17:29:56,618 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2022-11-21 17:29:56,618 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2022-11-21 17:29:56,659 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-21 17:29:56,679 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2022-11-21 17:29:56,680 INFO L444 ModelExtractionUtils]: 8 out of 16 variables were initially zero. Simplification set additionally 4 variables to zero. [2022-11-21 17:29:56,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:29:56,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:29:56,682 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 17:29:56,701 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-21 17:29:56,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2022-11-21 17:29:56,727 INFO L438 nArgumentSynthesizer]: Removed 3 redundant supporting invariants from a total of 4. [2022-11-21 17:29:56,727 INFO L513 LassoAnalysis]: Proved termination. [2022-11-21 17:29:56,727 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 [2*ULTIMATE.start_main_~x~0#1 - 1 >= 0] [2022-11-21 17:29:56,732 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2022-11-21 17:29:56,740 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2022-11-21 17:29:56,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:29:56,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:29:56,778 INFO L263 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-21 17:29:56,779 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:29:56,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:29:56,808 WARN L261 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-21 17:29:56,809 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:29:56,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:29:56,856 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2022-11-21 17:29:56,856 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5 Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:29:56,908 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 17 states and 22 transitions. Complement of second has 5 states. [2022-11-21 17:29:56,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 0 non-accepting loop states 2 accepting loop states [2022-11-21 17:29:56,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:29:56,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6 transitions. [2022-11-21 17:29:56,910 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 4 letters. Loop has 3 letters. [2022-11-21 17:29:56,911 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-21 17:29:56,911 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-21 17:29:56,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:29:56,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:29:56,954 INFO L263 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-21 17:29:56,955 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:29:56,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:29:56,984 WARN L261 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-21 17:29:56,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:29:57,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:29:57,021 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 2 loop predicates [2022-11-21 17:29:57,022 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5 Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:29:57,070 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 22 states and 27 transitions. Complement of second has 6 states. [2022-11-21 17:29:57,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2022-11-21 17:29:57,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:29:57,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7 transitions. [2022-11-21 17:29:57,077 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 4 letters. Loop has 3 letters. [2022-11-21 17:29:57,077 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-21 17:29:57,077 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 7 letters. Loop has 3 letters. [2022-11-21 17:29:57,077 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-21 17:29:57,077 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 4 letters. Loop has 6 letters. [2022-11-21 17:29:57,077 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-21 17:29:57,078 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 27 transitions. [2022-11-21 17:29:57,079 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-21 17:29:57,079 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 14 states and 17 transitions. [2022-11-21 17:29:57,079 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2022-11-21 17:29:57,080 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2022-11-21 17:29:57,080 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 17 transitions. [2022-11-21 17:29:57,080 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-21 17:29:57,080 INFO L218 hiAutomatonCegarLoop]: Abstraction has 14 states and 17 transitions. [2022-11-21 17:29:57,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 17 transitions. [2022-11-21 17:29:57,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 11. [2022-11-21 17:29:57,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:29:57,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2022-11-21 17:29:57,082 INFO L240 hiAutomatonCegarLoop]: Abstraction has 11 states and 13 transitions. [2022-11-21 17:29:57,082 INFO L428 stractBuchiCegarLoop]: Abstraction has 11 states and 13 transitions. [2022-11-21 17:29:57,082 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-21 17:29:57,082 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 13 transitions. [2022-11-21 17:29:57,084 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-21 17:29:57,084 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-21 17:29:57,085 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-21 17:29:57,085 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2022-11-21 17:29:57,085 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-21 17:29:57,085 INFO L748 eck$LassoCheckResult]: Stem: 221#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 222#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_~c~0#1, main_~x~0#1, main_~y~0#1;havoc main_~c~0#1;havoc main_~x~0#1;havoc main_~y~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_~c~0#1 := 0; 224#L11 assume main_~x~0#1 > 0 && main_~y~0#1 > 0; 214#L12-2 assume !!!(0 == main_~x~0#1); 215#L13 assume main_~x~0#1 > main_~y~0#1;main_~x~0#1 := main_~y~0#1; 219#L13-2 main_~c~0#1 := 1 + main_~c~0#1; 223#L12-2 [2022-11-21 17:29:57,086 INFO L750 eck$LassoCheckResult]: Loop: 223#L12-2 assume !!!(0 == main_~x~0#1); 217#L13 assume !(main_~x~0#1 > main_~y~0#1);main_~x~0#1 := main_~x~0#1 - 1; 218#L13-2 main_~c~0#1 := 1 + main_~c~0#1; 223#L12-2 [2022-11-21 17:29:57,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:29:57,086 INFO L85 PathProgramCache]: Analyzing trace with hash 889513680, now seen corresponding path program 2 times [2022-11-21 17:29:57,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:29:57,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555080566] [2022-11-21 17:29:57,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:29:57,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:29:57,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 17:29:57,116 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 17:29:57,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 17:29:57,122 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 17:29:57,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:29:57,122 INFO L85 PathProgramCache]: Analyzing trace with hash 43855, now seen corresponding path program 2 times [2022-11-21 17:29:57,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:29:57,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337330248] [2022-11-21 17:29:57,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:29:57,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:29:57,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 17:29:57,128 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 17:29:57,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 17:29:57,132 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 17:29:57,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:29:57,133 INFO L85 PathProgramCache]: Analyzing trace with hash -446161376, now seen corresponding path program 1 times [2022-11-21 17:29:57,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:29:57,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129778646] [2022-11-21 17:29:57,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:29:57,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:29:57,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 17:29:57,141 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 17:29:57,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 17:29:57,161 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 17:29:57,190 INFO L210 LassoAnalysis]: Preferences: [2022-11-21 17:29:57,190 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-21 17:29:57,190 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-21 17:29:57,190 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-21 17:29:57,190 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-21 17:29:57,190 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:29:57,190 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-21 17:29:57,190 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-21 17:29:57,191 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.09-no-inv_assume.c_Iteration3_Loop [2022-11-21 17:29:57,191 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-21 17:29:57,191 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-21 17:29:57,192 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:29:57,196 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:29:57,204 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:29:57,208 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:29:57,290 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-21 17:29:57,290 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-21 17:29:57,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:29:57,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:29:57,292 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 17:29:57,299 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-21 17:29:57,299 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 17:29:57,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2022-11-21 17:29:57,327 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-21 17:29:57,327 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_6=1} Honda state: {v_rep~unnamed0~0~true_6=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-21 17:29:57,338 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2022-11-21 17:29:57,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:29:57,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:29:57,340 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 17:29:57,347 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-21 17:29:57,347 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 17:29:57,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2022-11-21 17:29:57,388 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2022-11-21 17:29:57,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:29:57,389 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:29:57,390 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 17:29:57,394 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-21 17:29:57,394 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 17:29:57,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2022-11-21 17:29:57,451 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-21 17:29:57,451 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=-8, ULTIMATE.start_main_~y~0#1=-8} Honda state: {ULTIMATE.start_main_~x~0#1=-8, ULTIMATE.start_main_~y~0#1=-8} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~y~0#1=0}, {ULTIMATE.start_main_~x~0#1=-1, ULTIMATE.start_main_~y~0#1=0}, {ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~y~0#1=0}] Lambdas: [13, 1, 4] Nus: [0, 0] [2022-11-21 17:29:57,458 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2022-11-21 17:29:57,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:29:57,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:29:57,460 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 17:29:57,467 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-21 17:29:57,467 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 17:29:57,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2022-11-21 17:29:57,508 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2022-11-21 17:29:57,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:29:57,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:29:57,510 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 17:29:57,514 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-21 17:29:57,515 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 17:29:57,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2022-11-21 17:29:57,553 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-21 17:29:57,553 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0#1=0} Honda state: {ULTIMATE.start_main_~c~0#1=0} Generalized eigenvectors: [{ULTIMATE.start_main_~c~0#1=4}, {ULTIMATE.start_main_~c~0#1=-8}, {ULTIMATE.start_main_~c~0#1=5}] Lambdas: [3, 1, 1] Nus: [1, 0] [2022-11-21 17:29:57,563 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2022-11-21 17:29:57,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:29:57,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:29:57,565 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 17:29:57,569 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-21 17:29:57,569 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 17:29:57,584 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2022-11-21 17:29:57,599 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-21 17:29:57,600 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_6=0} Honda state: {v_rep~unnamed0~0~false_6=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-21 17:29:57,605 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2022-11-21 17:29:57,655 INFO L210 LassoAnalysis]: Preferences: [2022-11-21 17:29:57,656 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-21 17:29:57,656 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-21 17:29:57,656 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-21 17:29:57,656 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-21 17:29:57,656 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:29:57,657 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-21 17:29:57,657 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-21 17:29:57,657 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.09-no-inv_assume.c_Iteration3_Lasso [2022-11-21 17:29:57,657 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-21 17:29:57,657 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-21 17:29:57,660 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:29:57,664 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:29:57,669 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:29:57,673 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:29:57,678 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:29:57,694 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:29:57,698 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:29:57,811 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-21 17:29:57,815 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-21 17:29:57,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:29:57,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:29:57,817 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 17:29:57,823 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-21 17:29:57,823 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 17:29:57,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2022-11-21 17:29:57,855 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-21 17:29:57,855 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0#1=0} Honda state: {ULTIMATE.start_main_#t~nondet0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-21 17:29:57,865 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2022-11-21 17:29:57,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:29:57,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:29:57,867 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 17:29:57,871 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-21 17:29:57,871 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 17:29:57,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2022-11-21 17:29:57,896 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-21 17:29:57,896 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1#1=0} Honda state: {ULTIMATE.start_main_#t~nondet1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-21 17:29:57,906 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2022-11-21 17:29:57,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:29:57,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:29:57,908 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 17:29:57,912 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-21 17:29:57,912 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 17:29:57,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2022-11-21 17:29:57,943 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-21 17:29:57,944 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_7=0} Honda state: {v_rep~unnamed0~0~false_7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-21 17:29:57,954 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2022-11-21 17:29:57,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:29:57,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:29:57,959 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 17:29:57,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2022-11-21 17:29:57,969 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-21 17:29:57,969 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 17:29:57,999 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-21 17:29:58,000 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res#1=0} Honda state: {ULTIMATE.start_main_#res#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-21 17:29:58,009 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2022-11-21 17:29:58,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:29:58,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:29:58,011 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 17:29:58,015 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-21 17:29:58,015 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 17:29:58,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2022-11-21 17:29:58,065 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2022-11-21 17:29:58,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:29:58,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:29:58,066 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 17:29:58,071 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-21 17:29:58,071 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 17:29:58,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2022-11-21 17:29:58,132 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-21 17:29:58,143 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2022-11-21 17:29:58,144 INFO L210 LassoAnalysis]: Preferences: [2022-11-21 17:29:58,144 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-21 17:29:58,144 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-21 17:29:58,144 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-21 17:29:58,144 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-21 17:29:58,144 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:29:58,144 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-21 17:29:58,144 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-21 17:29:58,144 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.09-no-inv_assume.c_Iteration3_Lasso [2022-11-21 17:29:58,145 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-21 17:29:58,145 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-21 17:29:58,146 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:29:58,151 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:29:58,154 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:29:58,158 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:29:58,161 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:29:58,175 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:29:58,182 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:29:58,246 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2022-11-21 17:29:58,306 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-21 17:29:58,306 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-21 17:29:58,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:29:58,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:29:58,308 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 17:29:58,320 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-21 17:29:58,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2022-11-21 17:29:58,336 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 17:29:58,336 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-21 17:29:58,336 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 17:29:58,336 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 17:29:58,336 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 17:29:58,337 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-21 17:29:58,337 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-21 17:29:58,351 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 17:29:58,355 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2022-11-21 17:29:58,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:29:58,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:29:58,357 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 17:29:58,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2022-11-21 17:29:58,361 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-21 17:29:58,374 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 17:29:58,374 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-21 17:29:58,374 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 17:29:58,374 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 17:29:58,374 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 17:29:58,375 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-21 17:29:58,375 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-21 17:29:58,384 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 17:29:58,388 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2022-11-21 17:29:58,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:29:58,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:29:58,389 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 17:29:58,400 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-21 17:29:58,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2022-11-21 17:29:58,414 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 17:29:58,415 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 17:29:58,415 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 17:29:58,415 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 17:29:58,417 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-21 17:29:58,418 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-21 17:29:58,439 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 17:29:58,443 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2022-11-21 17:29:58,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:29:58,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:29:58,445 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 17:29:58,450 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-21 17:29:58,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2022-11-21 17:29:58,465 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 17:29:58,465 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-21 17:29:58,465 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 17:29:58,465 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 17:29:58,465 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 17:29:58,467 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-21 17:29:58,467 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-21 17:29:58,476 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 17:29:58,480 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2022-11-21 17:29:58,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:29:58,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:29:58,482 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 17:29:58,488 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-21 17:29:58,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2022-11-21 17:29:58,503 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 17:29:58,503 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 17:29:58,503 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-11-21 17:29:58,503 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 17:29:58,513 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2022-11-21 17:29:58,514 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2022-11-21 17:29:58,543 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-21 17:29:58,571 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2022-11-21 17:29:58,571 INFO L444 ModelExtractionUtils]: 5 out of 16 variables were initially zero. Simplification set additionally 8 variables to zero. [2022-11-21 17:29:58,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:29:58,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:29:58,573 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 17:29:58,576 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-21 17:29:58,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2022-11-21 17:29:58,614 INFO L438 nArgumentSynthesizer]: Removed 3 redundant supporting invariants from a total of 4. [2022-11-21 17:29:58,614 INFO L513 LassoAnalysis]: Proved termination. [2022-11-21 17:29:58,614 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 [1*ULTIMATE.start_main_~x~0#1 >= 0] [2022-11-21 17:29:58,619 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0 [2022-11-21 17:29:58,621 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2022-11-21 17:29:58,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:29:58,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:29:58,661 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-21 17:29:58,662 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:29:58,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:29:58,717 WARN L261 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-21 17:29:58,717 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:29:58,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:29:58,760 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 3 loop predicates [2022-11-21 17:29:58,760 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 13 transitions. cyclomatic complexity: 4 Second operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:29:58,824 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 13 transitions. cyclomatic complexity: 4. Second operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 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 29 states and 36 transitions. Complement of second has 10 states. [2022-11-21 17:29:58,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 3 stem states 2 non-accepting loop states 2 accepting loop states [2022-11-21 17:29:58,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:29:58,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 13 transitions. [2022-11-21 17:29:58,826 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 13 transitions. Stem has 6 letters. Loop has 3 letters. [2022-11-21 17:29:58,827 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-21 17:29:58,827 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 13 transitions. Stem has 9 letters. Loop has 3 letters. [2022-11-21 17:29:58,827 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-21 17:29:58,827 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 13 transitions. Stem has 6 letters. Loop has 6 letters. [2022-11-21 17:29:58,827 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-21 17:29:58,827 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 36 transitions. [2022-11-21 17:29:58,829 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-21 17:29:58,829 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 20 states and 25 transitions. [2022-11-21 17:29:58,830 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2022-11-21 17:29:58,830 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2022-11-21 17:29:58,830 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 25 transitions. [2022-11-21 17:29:58,830 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-21 17:29:58,831 INFO L218 hiAutomatonCegarLoop]: Abstraction has 20 states and 25 transitions. [2022-11-21 17:29:58,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 25 transitions. [2022-11-21 17:29:58,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 12. [2022-11-21 17:29:58,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.25) internal successors, (15), 11 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:29:58,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 15 transitions. [2022-11-21 17:29:58,833 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12 states and 15 transitions. [2022-11-21 17:29:58,833 INFO L428 stractBuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2022-11-21 17:29:58,833 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-11-21 17:29:58,833 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 15 transitions. [2022-11-21 17:29:58,834 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-21 17:29:58,834 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-21 17:29:58,834 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-21 17:29:58,835 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1] [2022-11-21 17:29:58,835 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-21 17:29:58,836 INFO L748 eck$LassoCheckResult]: Stem: 331#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 332#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_~c~0#1, main_~x~0#1, main_~y~0#1;havoc main_~c~0#1;havoc main_~x~0#1;havoc main_~y~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_~c~0#1 := 0; 334#L11 assume main_~x~0#1 > 0 && main_~y~0#1 > 0; 324#L12-2 assume !!!(0 == main_~x~0#1); 325#L13 assume !(main_~x~0#1 > main_~y~0#1);main_~x~0#1 := main_~x~0#1 - 1; 330#L13-2 main_~c~0#1 := 1 + main_~c~0#1; 326#L12-2 assume !!!(0 == main_~x~0#1); 327#L13 assume main_~x~0#1 > main_~y~0#1;main_~x~0#1 := main_~y~0#1; 335#L13-2 main_~c~0#1 := 1 + main_~c~0#1; 333#L12-2 [2022-11-21 17:29:58,836 INFO L750 eck$LassoCheckResult]: Loop: 333#L12-2 assume !!!(0 == main_~x~0#1); 328#L13 assume !(main_~x~0#1 > main_~y~0#1);main_~x~0#1 := main_~x~0#1 - 1; 329#L13-2 main_~c~0#1 := 1 + main_~c~0#1; 333#L12-2 [2022-11-21 17:29:58,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:29:58,836 INFO L85 PathProgramCache]: Analyzing trace with hash -444314396, now seen corresponding path program 2 times [2022-11-21 17:29:58,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:29:58,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826838861] [2022-11-21 17:29:58,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:29:58,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:29:58,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:29:58,916 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:29:58,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:29:58,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826838861] [2022-11-21 17:29:58,917 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826838861] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:29:58,917 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:29:58,917 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 17:29:58,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034178790] [2022-11-21 17:29:58,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:29:58,921 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-21 17:29:58,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:29:58,922 INFO L85 PathProgramCache]: Analyzing trace with hash 43855, now seen corresponding path program 3 times [2022-11-21 17:29:58,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:29:58,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72586407] [2022-11-21 17:29:58,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:29:58,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:29:58,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 17:29:58,929 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 17:29:58,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 17:29:58,939 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 17:29:58,969 INFO L210 LassoAnalysis]: Preferences: [2022-11-21 17:29:58,969 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-21 17:29:58,970 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-21 17:29:58,972 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-21 17:29:58,972 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-21 17:29:58,972 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:29:58,974 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-21 17:29:58,974 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-21 17:29:58,974 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.09-no-inv_assume.c_Iteration4_Loop [2022-11-21 17:29:58,974 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-21 17:29:58,974 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-21 17:29:58,976 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:29:58,983 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:29:58,986 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:29:58,989 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:29:59,047 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-21 17:29:59,047 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-21 17:29:59,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:29:59,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:29:59,052 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 17:29:59,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2022-11-21 17:29:59,061 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-21 17:29:59,062 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 17:29:59,088 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2022-11-21 17:29:59,088 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:29:59,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:29:59,089 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 17:29:59,096 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-21 17:29:59,096 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 17:29:59,103 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2022-11-21 17:29:59,142 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-21 17:29:59,142 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=-8, ULTIMATE.start_main_~y~0#1=-8} Honda state: {ULTIMATE.start_main_~x~0#1=-8, ULTIMATE.start_main_~y~0#1=-8} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~y~0#1=0}, {ULTIMATE.start_main_~x~0#1=-1, ULTIMATE.start_main_~y~0#1=0}, {ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~y~0#1=0}] Lambdas: [13, 1, 4] Nus: [0, 0] [2022-11-21 17:29:59,147 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2022-11-21 17:29:59,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:29:59,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:29:59,148 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 17:29:59,156 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-21 17:29:59,156 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 17:29:59,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2022-11-21 17:29:59,183 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-21 17:29:59,184 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_9=1} Honda state: {v_rep~unnamed0~0~true_9=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-21 17:29:59,188 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Forceful destruction successful, exit code 0 [2022-11-21 17:29:59,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:29:59,189 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:29:59,191 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 17:29:59,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2022-11-21 17:29:59,195 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-21 17:29:59,195 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 17:29:59,235 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-21 17:29:59,236 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_9=0} Honda state: {v_rep~unnamed0~0~false_9=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-21 17:29:59,240 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0 [2022-11-21 17:29:59,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:29:59,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:29:59,241 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 17:29:59,248 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-21 17:29:59,248 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 17:29:59,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2022-11-21 17:29:59,280 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Forceful destruction successful, exit code 0 [2022-11-21 17:29:59,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:29:59,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:29:59,282 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 17:29:59,285 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-21 17:29:59,286 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 17:29:59,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2022-11-21 17:29:59,315 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-21 17:29:59,315 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0#1=0} Honda state: {ULTIMATE.start_main_~c~0#1=0} Generalized eigenvectors: [{ULTIMATE.start_main_~c~0#1=4}, {ULTIMATE.start_main_~c~0#1=-8}, {ULTIMATE.start_main_~c~0#1=5}] Lambdas: [3, 1, 1] Nus: [1, 0] [2022-11-21 17:29:59,318 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Ended with exit code 0 [2022-11-21 17:29:59,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:29:59,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 17:29:59,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 17:29:59,322 INFO L87 Difference]: Start difference. First operand 12 states and 15 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:29:59,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:29:59,342 INFO L93 Difference]: Finished difference Result 17 states and 20 transitions. [2022-11-21 17:29:59,342 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 20 transitions. [2022-11-21 17:29:59,342 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-21 17:29:59,343 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 14 states and 15 transitions. [2022-11-21 17:29:59,343 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2022-11-21 17:29:59,343 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2022-11-21 17:29:59,343 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 15 transitions. [2022-11-21 17:29:59,344 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-21 17:29:59,344 INFO L218 hiAutomatonCegarLoop]: Abstraction has 14 states and 15 transitions. [2022-11-21 17:29:59,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 15 transitions. [2022-11-21 17:29:59,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-11-21 17:29:59,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 11 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:29:59,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2022-11-21 17:29:59,346 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12 states and 13 transitions. [2022-11-21 17:29:59,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 17:29:59,347 INFO L428 stractBuchiCegarLoop]: Abstraction has 12 states and 13 transitions. [2022-11-21 17:29:59,347 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-11-21 17:29:59,347 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 13 transitions. [2022-11-21 17:29:59,348 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-21 17:29:59,348 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-21 17:29:59,348 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-21 17:29:59,348 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1] [2022-11-21 17:29:59,349 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-21 17:29:59,349 INFO L748 eck$LassoCheckResult]: Stem: 366#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 367#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~c~0#1, main_~x~0#1, main_~y~0#1;havoc main_~c~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~c~0#1 := 0; 368#L11 assume main_~x~0#1 > 0 && main_~y~0#1 > 0; 369#L12-2 assume !!!(0 == main_~x~0#1); 364#L13 assume main_~x~0#1 > main_~y~0#1;main_~x~0#1 := main_~y~0#1; 365#L13-2 main_~c~0#1 := 1 + main_~c~0#1; 361#L12-2 assume !!!(0 == main_~x~0#1); 362#L13 assume main_~x~0#1 > main_~y~0#1;main_~x~0#1 := main_~y~0#1; 370#L13-2 main_~c~0#1 := 1 + main_~c~0#1; 359#L12-2 [2022-11-21 17:29:59,349 INFO L750 eck$LassoCheckResult]: Loop: 359#L12-2 assume !!!(0 == main_~x~0#1); 360#L13 assume !(main_~x~0#1 > main_~y~0#1);main_~x~0#1 := main_~x~0#1 - 1; 363#L13-2 main_~c~0#1 := 1 + main_~c~0#1; 359#L12-2 [2022-11-21 17:29:59,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:29:59,350 INFO L85 PathProgramCache]: Analyzing trace with hash -446161438, now seen corresponding path program 3 times [2022-11-21 17:29:59,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:29:59,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679907642] [2022-11-21 17:29:59,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:29:59,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:29:59,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:29:59,394 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:29:59,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:29:59,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679907642] [2022-11-21 17:29:59,395 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679907642] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:29:59,395 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:29:59,395 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 17:29:59,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773940947] [2022-11-21 17:29:59,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:29:59,396 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-21 17:29:59,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:29:59,396 INFO L85 PathProgramCache]: Analyzing trace with hash 43855, now seen corresponding path program 4 times [2022-11-21 17:29:59,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:29:59,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703307275] [2022-11-21 17:29:59,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:29:59,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:29:59,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 17:29:59,401 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 17:29:59,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 17:29:59,404 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 17:29:59,427 INFO L210 LassoAnalysis]: Preferences: [2022-11-21 17:29:59,427 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-21 17:29:59,428 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-21 17:29:59,428 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-21 17:29:59,428 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-21 17:29:59,428 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:29:59,428 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-21 17:29:59,428 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-21 17:29:59,428 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.09-no-inv_assume.c_Iteration5_Loop [2022-11-21 17:29:59,428 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-21 17:29:59,429 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-21 17:29:59,430 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:29:59,432 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:29:59,439 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:29:59,443 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:29:59,504 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-21 17:29:59,505 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-21 17:29:59,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:29:59,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:29:59,506 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 17:29:59,516 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-21 17:29:59,516 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 17:29:59,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2022-11-21 17:29:59,543 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-21 17:29:59,543 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_10=0} Honda state: {v_rep~unnamed0~0~false_10=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-21 17:29:59,547 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Forceful destruction successful, exit code 0 [2022-11-21 17:29:59,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:29:59,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:29:59,549 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 17:29:59,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2022-11-21 17:29:59,552 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-21 17:29:59,552 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 17:29:59,594 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Forceful destruction successful, exit code 0 [2022-11-21 17:29:59,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:29:59,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:29:59,596 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 17:29:59,604 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-21 17:29:59,604 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 17:29:59,616 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2022-11-21 17:29:59,650 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-21 17:29:59,651 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=-8, ULTIMATE.start_main_~y~0#1=-8} Honda state: {ULTIMATE.start_main_~x~0#1=-8, ULTIMATE.start_main_~y~0#1=-8} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~y~0#1=0}, {ULTIMATE.start_main_~x~0#1=-1, ULTIMATE.start_main_~y~0#1=0}, {ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~y~0#1=0}] Lambdas: [13, 1, 4] Nus: [0, 0] [2022-11-21 17:29:59,655 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Forceful destruction successful, exit code 0 [2022-11-21 17:29:59,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:29:59,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:29:59,657 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 17:29:59,660 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-21 17:29:59,660 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 17:29:59,673 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2022-11-21 17:29:59,681 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Ended with exit code 0 [2022-11-21 17:29:59,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:29:59,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:29:59,682 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 17:29:59,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2022-11-21 17:29:59,685 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-21 17:29:59,685 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 17:29:59,710 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-21 17:29:59,710 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0#1=0} Honda state: {ULTIMATE.start_main_~c~0#1=0} Generalized eigenvectors: [{ULTIMATE.start_main_~c~0#1=4}, {ULTIMATE.start_main_~c~0#1=-8}, {ULTIMATE.start_main_~c~0#1=5}] Lambdas: [3, 1, 1] Nus: [1, 0] [2022-11-21 17:29:59,713 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Forceful destruction successful, exit code 0 [2022-11-21 17:29:59,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:29:59,714 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:29:59,714 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 17:29:59,716 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2022-11-21 17:29:59,717 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-21 17:29:59,717 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 17:29:59,735 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-21 17:29:59,735 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_10=1} Honda state: {v_rep~unnamed0~0~true_10=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-21 17:29:59,737 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Forceful destruction successful, exit code 0 [2022-11-21 17:29:59,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:29:59,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 17:29:59,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 17:29:59,738 INFO L87 Difference]: Start difference. First operand 12 states and 13 transitions. cyclomatic complexity: 3 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:29:59,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:29:59,743 INFO L93 Difference]: Finished difference Result 8 states and 7 transitions. [2022-11-21 17:29:59,744 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 7 transitions. [2022-11-21 17:29:59,744 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-21 17:29:59,744 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 0 states and 0 transitions. [2022-11-21 17:29:59,744 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-21 17:29:59,744 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-21 17:29:59,744 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-21 17:29:59,745 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:29:59,745 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-21 17:29:59,745 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-21 17:29:59,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 17:29:59,748 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-21 17:29:59,749 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-11-21 17:29:59,749 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-11-21 17:29:59,749 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-21 17:29:59,749 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-11-21 17:29:59,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.11 05:29:59 BoogieIcfgContainer [2022-11-21 17:29:59,756 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-21 17:29:59,756 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 17:29:59,757 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 17:29:59,757 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 17:29:59,757 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:29:52" (3/4) ... [2022-11-21 17:29:59,760 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-21 17:29:59,760 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 17:29:59,760 INFO L158 Benchmark]: Toolchain (without parser) took 7525.41ms. Allocated memory was 140.5MB in the beginning and 188.7MB in the end (delta: 48.2MB). Free memory was 95.0MB in the beginning and 84.6MB in the end (delta: 10.5MB). Peak memory consumption was 61.6MB. Max. memory is 16.1GB. [2022-11-21 17:29:59,761 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 140.5MB. Free memory is still 81.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 17:29:59,761 INFO L158 Benchmark]: CACSL2BoogieTranslator took 312.08ms. Allocated memory is still 140.5MB. Free memory was 95.0MB in the beginning and 85.7MB in the end (delta: 9.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-21 17:29:59,761 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.34ms. Allocated memory is still 140.5MB. Free memory was 85.7MB in the beginning and 84.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 17:29:59,762 INFO L158 Benchmark]: Boogie Preprocessor took 28.09ms. Allocated memory is still 140.5MB. Free memory was 84.3MB in the beginning and 83.3MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 17:29:59,762 INFO L158 Benchmark]: RCFGBuilder took 330.59ms. Allocated memory is still 140.5MB. Free memory was 83.3MB in the beginning and 75.0MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-21 17:29:59,763 INFO L158 Benchmark]: BuchiAutomizer took 6804.95ms. Allocated memory was 140.5MB in the beginning and 188.7MB in the end (delta: 48.2MB). Free memory was 75.0MB in the beginning and 84.6MB in the end (delta: -9.6MB). Peak memory consumption was 40.6MB. Max. memory is 16.1GB. [2022-11-21 17:29:59,763 INFO L158 Benchmark]: Witness Printer took 3.34ms. Allocated memory is still 188.7MB. Free memory is still 84.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 17:29:59,765 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 140.5MB. Free memory is still 81.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 312.08ms. Allocated memory is still 140.5MB. Free memory was 95.0MB in the beginning and 85.7MB in the end (delta: 9.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.34ms. Allocated memory is still 140.5MB. Free memory was 85.7MB in the beginning and 84.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 28.09ms. Allocated memory is still 140.5MB. Free memory was 84.3MB in the beginning and 83.3MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 330.59ms. Allocated memory is still 140.5MB. Free memory was 83.3MB in the beginning and 75.0MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 6804.95ms. Allocated memory was 140.5MB in the beginning and 188.7MB in the end (delta: 48.2MB). Free memory was 75.0MB in the beginning and 84.6MB in the end (delta: -9.6MB). Peak memory consumption was 40.6MB. Max. memory is 16.1GB. * Witness Printer took 3.34ms. Allocated memory is still 188.7MB. Free memory is still 84.6MB. 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 5 terminating modules (2 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * y + x and consists of 4 locations. One deterministic module has affine ranking function x and consists of 4 locations. One deterministic module has affine ranking function x and consists of 7 locations. 2 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 6.7s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 5.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.7s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 15 StatesRemovedByMinimization, 4 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 1, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 30 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 29 mSDsluCounter, 59 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 20 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 44 IncrementalHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 39 mSDtfsCounter, 44 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN2 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital23 mio100 ax154 hnf100 lsp47 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq162 hnf95 smp100 dnf158 smp100 tf103 neg91 sie116 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 140ms VariablesStem: 2 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 19 LassoNonterminationAnalysisSatUnbounded: 8 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 2.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-11-21 17:29:59,780 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2022-11-21 17:29:59,983 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086d8bea-7112-4a72-900e-c8bb2b9e3100/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE