./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-new/nested-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 9bd2c7ff 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_0a07de52-b64b-4dc6-a09b-a42446f28ea0/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a07de52-b64b-4dc6-a09b-a42446f28ea0/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a07de52-b64b-4dc6-a09b-a42446f28ea0/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a07de52-b64b-4dc6-a09b-a42446f28ea0/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-new/nested-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a07de52-b64b-4dc6-a09b-a42446f28ea0/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a07de52-b64b-4dc6-a09b-a42446f28ea0/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3baf312ca85439572472b3c02ed304b3157fa97373d6ada535e5a723c6c0219a --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 08:03:32,048 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 08:03:32,130 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a07de52-b64b-4dc6-a09b-a42446f28ea0/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Termination-32bit-Automizer_Default.epf [2023-11-19 08:03:32,135 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 08:03:32,136 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 08:03:32,159 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 08:03:32,160 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 08:03:32,160 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 08:03:32,162 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 08:03:32,162 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 08:03:32,163 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 08:03:32,163 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-19 08:03:32,164 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-19 08:03:32,165 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-19 08:03:32,165 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-19 08:03:32,166 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-19 08:03:32,166 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-19 08:03:32,167 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 08:03:32,167 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-19 08:03:32,168 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 08:03:32,169 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 08:03:32,170 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 08:03:32,170 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 08:03:32,171 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-19 08:03:32,171 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-19 08:03:32,172 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-19 08:03:32,172 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 08:03:32,173 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 08:03:32,174 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 08:03:32,174 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-19 08:03:32,175 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 08:03:32,175 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 08:03:32,176 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 08:03:32,176 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 08:03:32,177 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 08:03:32,178 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-19 08:03:32,178 INFO L153 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_0a07de52-b64b-4dc6-a09b-a42446f28ea0/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a07de52-b64b-4dc6-a09b-a42446f28ea0/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3baf312ca85439572472b3c02ed304b3157fa97373d6ada535e5a723c6c0219a [2023-11-19 08:03:32,434 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 08:03:32,468 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 08:03:32,471 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 08:03:32,473 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 08:03:32,474 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 08:03:32,476 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a07de52-b64b-4dc6-a09b-a42446f28ea0/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/loop-new/nested-1.i [2023-11-19 08:03:35,513 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 08:03:35,771 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 08:03:35,772 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a07de52-b64b-4dc6-a09b-a42446f28ea0/sv-benchmarks/c/loop-new/nested-1.i [2023-11-19 08:03:35,781 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a07de52-b64b-4dc6-a09b-a42446f28ea0/bin/uautomizer-verify-uCwYo4JHxu/data/6293399f5/889c1fdc0d974530b85684f0400d462c/FLAG8f01810a5 [2023-11-19 08:03:35,800 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a07de52-b64b-4dc6-a09b-a42446f28ea0/bin/uautomizer-verify-uCwYo4JHxu/data/6293399f5/889c1fdc0d974530b85684f0400d462c [2023-11-19 08:03:35,806 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 08:03:35,809 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 08:03:35,813 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 08:03:35,814 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 08:03:35,820 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 08:03:35,823 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:03:35" (1/1) ... [2023-11-19 08:03:35,825 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@662fe7a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:35, skipping insertion in model container [2023-11-19 08:03:35,825 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:03:35" (1/1) ... [2023-11-19 08:03:35,853 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 08:03:36,061 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:03:36,074 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 08:03:36,093 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:03:36,109 INFO L206 MainTranslator]: Completed translation [2023-11-19 08:03:36,109 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:36 WrapperNode [2023-11-19 08:03:36,110 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 08:03:36,111 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 08:03:36,111 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 08:03:36,111 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 08:03:36,119 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:36" (1/1) ... [2023-11-19 08:03:36,127 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:36" (1/1) ... [2023-11-19 08:03:36,149 INFO L138 Inliner]: procedures = 16, calls = 8, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 54 [2023-11-19 08:03:36,150 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 08:03:36,150 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 08:03:36,150 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 08:03:36,151 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 08:03:36,159 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:36" (1/1) ... [2023-11-19 08:03:36,160 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:36" (1/1) ... [2023-11-19 08:03:36,171 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:36" (1/1) ... [2023-11-19 08:03:36,171 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:36" (1/1) ... [2023-11-19 08:03:36,177 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:36" (1/1) ... [2023-11-19 08:03:36,183 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:36" (1/1) ... [2023-11-19 08:03:36,188 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:36" (1/1) ... [2023-11-19 08:03:36,194 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:36" (1/1) ... [2023-11-19 08:03:36,195 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 08:03:36,197 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 08:03:36,197 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 08:03:36,198 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 08:03:36,198 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:36" (1/1) ... [2023-11-19 08:03:36,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:03:36,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a07de52-b64b-4dc6-a09b-a42446f28ea0/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:03:36,235 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a07de52-b64b-4dc6-a09b-a42446f28ea0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:03:36,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a07de52-b64b-4dc6-a09b-a42446f28ea0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-19 08:03:36,286 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 08:03:36,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 08:03:36,286 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 08:03:36,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 08:03:36,365 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 08:03:36,367 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 08:03:36,530 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 08:03:36,538 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 08:03:36,538 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 08:03:36,541 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:03:36 BoogieIcfgContainer [2023-11-19 08:03:36,542 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 08:03:36,543 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-19 08:03:36,543 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-19 08:03:36,548 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-19 08:03:36,548 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 08:03:36,549 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 08:03:35" (1/3) ... [2023-11-19 08:03:36,550 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@100b2551 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 08:03:36, skipping insertion in model container [2023-11-19 08:03:36,550 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 08:03:36,550 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:36" (2/3) ... [2023-11-19 08:03:36,551 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@100b2551 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 08:03:36, skipping insertion in model container [2023-11-19 08:03:36,551 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 08:03:36,551 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:03:36" (3/3) ... [2023-11-19 08:03:36,552 INFO L332 chiAutomizerObserver]: Analyzing ICFG nested-1.i [2023-11-19 08:03:36,612 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-19 08:03:36,612 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-19 08:03:36,613 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-19 08:03:36,613 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-19 08:03:36,613 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-19 08:03:36,613 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-19 08:03:36,613 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-19 08:03:36,614 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-19 08:03:36,618 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 17 states, 16 states have (on average 1.5) internal successors, (24), 16 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:03:36,637 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-19 08:03:36,637 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 08:03:36,637 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 08:03:36,643 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-11-19 08:03:36,644 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-19 08:03:36,644 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-19 08:03:36,644 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 17 states, 16 states have (on average 1.5) internal successors, (24), 16 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:03:36,646 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-19 08:03:36,647 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 08:03:36,647 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 08:03:36,647 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-11-19 08:03:36,647 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-19 08:03:36,656 INFO L748 eck$LassoCheckResult]: Stem: 13#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 6#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~nondet2#1, main_#t~post5#1, main_#t~post4#1, main_#t~post3#1, main_~n~0#1, main_~m~0#1, main_~k~0#1, main_~i~0#1, main_~j~0#1;havoc main_#t~nondet1#1;main_~n~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~m~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~k~0#1 := 0;havoc main_~i~0#1;havoc main_~j~0#1; 5#L29true assume !!(10 <= main_~n~0#1 && main_~n~0#1 <= 10000); 4#L30true assume !!(10 <= main_~m~0#1 && main_~m~0#1 <= 10000);main_~i~0#1 := 0; 7#L31-3true [2023-11-19 08:03:36,657 INFO L750 eck$LassoCheckResult]: Loop: 7#L31-3true assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 0; 12#L32-3true assume !true; 15#L31-2true main_#t~post3#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 7#L31-3true [2023-11-19 08:03:36,663 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:03:36,663 INFO L85 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 1 times [2023-11-19 08:03:36,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:03:36,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216573012] [2023-11-19 08:03:36,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:36,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:03:36,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:03:36,771 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 08:03:36,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:03:36,801 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 08:03:36,805 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:03:36,805 INFO L85 PathProgramCache]: Analyzing trace with hash 50037, now seen corresponding path program 1 times [2023-11-19 08:03:36,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:03:36,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967100486] [2023-11-19 08:03:36,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:36,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:03:36,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:36,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:03:36,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:03:36,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967100486] [2023-11-19 08:03:36,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967100486] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:03:36,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:03:36,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:03:36,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912415210] [2023-11-19 08:03:36,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:03:36,872 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-19 08:03:36,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:03:36,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 08:03:36,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 08:03:36,914 INFO L87 Difference]: Start difference. First operand has 17 states, 16 states have (on average 1.5) internal successors, (24), 16 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:03:36,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:03:36,922 INFO L93 Difference]: Finished difference Result 16 states and 19 transitions. [2023-11-19 08:03:36,924 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 19 transitions. [2023-11-19 08:03:36,929 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-19 08:03:36,932 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 8 states and 9 transitions. [2023-11-19 08:03:36,934 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2023-11-19 08:03:36,934 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2023-11-19 08:03:36,935 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 9 transitions. [2023-11-19 08:03:36,935 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:03:36,936 INFO L218 hiAutomatonCegarLoop]: Abstraction has 8 states and 9 transitions. [2023-11-19 08:03:36,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 9 transitions. [2023-11-19 08:03:36,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2023-11-19 08:03:36,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.125) internal successors, (9), 7 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) [2023-11-19 08:03:36,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 9 transitions. [2023-11-19 08:03:36,966 INFO L240 hiAutomatonCegarLoop]: Abstraction has 8 states and 9 transitions. [2023-11-19 08:03:36,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 08:03:36,979 INFO L428 stractBuchiCegarLoop]: Abstraction has 8 states and 9 transitions. [2023-11-19 08:03:36,979 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-19 08:03:36,979 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 9 transitions. [2023-11-19 08:03:36,980 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-19 08:03:36,981 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 08:03:36,981 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 08:03:36,982 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-11-19 08:03:36,983 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-19 08:03:36,983 INFO L748 eck$LassoCheckResult]: Stem: 46#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 47#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~nondet2#1, main_#t~post5#1, main_#t~post4#1, main_#t~post3#1, main_~n~0#1, main_~m~0#1, main_~k~0#1, main_~i~0#1, main_~j~0#1;havoc main_#t~nondet1#1;main_~n~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~m~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~k~0#1 := 0;havoc main_~i~0#1;havoc main_~j~0#1; 48#L29 assume !!(10 <= main_~n~0#1 && main_~n~0#1 <= 10000); 43#L30 assume !!(10 <= main_~m~0#1 && main_~m~0#1 <= 10000);main_~i~0#1 := 0; 44#L31-3 [2023-11-19 08:03:36,983 INFO L750 eck$LassoCheckResult]: Loop: 44#L31-3 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 0; 42#L32-3 assume !(main_~j~0#1 < main_~m~0#1); 45#L31-2 main_#t~post3#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 44#L31-3 [2023-11-19 08:03:36,984 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:03:36,985 INFO L85 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 2 times [2023-11-19 08:03:36,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:03:36,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302330418] [2023-11-19 08:03:36,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:36,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:03:36,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:03:36,999 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 08:03:37,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:03:37,008 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 08:03:37,009 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:03:37,009 INFO L85 PathProgramCache]: Analyzing trace with hash 49851, now seen corresponding path program 1 times [2023-11-19 08:03:37,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:03:37,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526230581] [2023-11-19 08:03:37,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:37,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:03:37,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:03:37,029 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 08:03:37,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:03:37,042 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 08:03:37,042 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:03:37,043 INFO L85 PathProgramCache]: Analyzing trace with hash 1806910836, now seen corresponding path program 1 times [2023-11-19 08:03:37,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:03:37,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909562246] [2023-11-19 08:03:37,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:37,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:03:37,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:37,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:03:37,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:03:37,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909562246] [2023-11-19 08:03:37,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909562246] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:03:37,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:03:37,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 08:03:37,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995286096] [2023-11-19 08:03:37,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:03:37,271 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 08:03:37,272 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 08:03:37,272 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 08:03:37,273 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 08:03:37,273 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-19 08:03:37,273 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:03:37,273 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 08:03:37,273 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 08:03:37,277 INFO L133 ssoRankerPreferences]: Filename of dumped script: nested-1.i_Iteration2_Loop [2023-11-19 08:03:37,277 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 08:03:37,278 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 08:03:37,295 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:03:37,305 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:03:37,315 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:03:37,320 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:03:37,369 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 08:03:37,370 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-19 08:03:37,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:03:37,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a07de52-b64b-4dc6-a09b-a42446f28ea0/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:03:37,375 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a07de52-b64b-4dc6-a09b-a42446f28ea0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:03:37,385 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 08:03:37,385 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 08:03:37,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a07de52-b64b-4dc6-a09b-a42446f28ea0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-19 08:03:37,418 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 08:03:37,418 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post3#1=0} Honda state: {ULTIMATE.start_main_#t~post3#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-19 08:03:37,437 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a07de52-b64b-4dc6-a09b-a42446f28ea0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-11-19 08:03:37,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:03:37,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a07de52-b64b-4dc6-a09b-a42446f28ea0/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:03:37,440 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a07de52-b64b-4dc6-a09b-a42446f28ea0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:03:37,454 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 08:03:37,454 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 08:03:37,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a07de52-b64b-4dc6-a09b-a42446f28ea0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-19 08:03:37,488 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a07de52-b64b-4dc6-a09b-a42446f28ea0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2023-11-19 08:03:37,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:03:37,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a07de52-b64b-4dc6-a09b-a42446f28ea0/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:03:37,490 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a07de52-b64b-4dc6-a09b-a42446f28ea0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:03:37,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a07de52-b64b-4dc6-a09b-a42446f28ea0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-19 08:03:37,494 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-19 08:03:37,494 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 08:03:37,664 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-19 08:03:37,667 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a07de52-b64b-4dc6-a09b-a42446f28ea0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-11-19 08:03:37,669 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 08:03:37,669 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 08:03:37,669 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 08:03:37,669 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 08:03:37,669 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-19 08:03:37,669 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:03:37,669 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 08:03:37,669 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 08:03:37,669 INFO L133 ssoRankerPreferences]: Filename of dumped script: nested-1.i_Iteration2_Loop [2023-11-19 08:03:37,670 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 08:03:37,670 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 08:03:37,671 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:03:37,677 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:03:37,692 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:03:37,697 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:03:37,750 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 08:03:37,754 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-19 08:03:37,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:03:37,756 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a07de52-b64b-4dc6-a09b-a42446f28ea0/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:03:37,760 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a07de52-b64b-4dc6-a09b-a42446f28ea0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:03:37,767 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 [2023-11-19 08:03:37,780 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 08:03:37,781 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 08:03:37,781 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 08:03:37,781 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 08:03:37,782 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 08:03:37,784 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 08:03:37,784 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 08:03:37,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a07de52-b64b-4dc6-a09b-a42446f28ea0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-19 08:03:37,801 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 08:03:37,824 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a07de52-b64b-4dc6-a09b-a42446f28ea0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-11-19 08:03:37,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:03:37,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a07de52-b64b-4dc6-a09b-a42446f28ea0/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:03:37,826 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a07de52-b64b-4dc6-a09b-a42446f28ea0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:03:37,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a07de52-b64b-4dc6-a09b-a42446f28ea0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-19 08:03:37,829 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 [2023-11-19 08:03:37,841 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 08:03:37,842 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 08:03:37,842 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 08:03:37,842 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 08:03:37,842 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 08:03:37,844 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 08:03:37,844 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 08:03:37,854 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-19 08:03:37,891 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-11-19 08:03:37,891 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-19 08:03:37,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:03:37,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a07de52-b64b-4dc6-a09b-a42446f28ea0/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:03:37,917 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a07de52-b64b-4dc6-a09b-a42446f28ea0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:03:37,920 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-19 08:03:37,921 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-19 08:03:37,921 INFO L513 LassoAnalysis]: Proved termination. [2023-11-19 08:03:37,921 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1, ULTIMATE.start_main_~n~0#1) = -1*ULTIMATE.start_main_~i~0#1 + 1*ULTIMATE.start_main_~n~0#1 Supporting invariants [] [2023-11-19 08:03:37,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a07de52-b64b-4dc6-a09b-a42446f28ea0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-19 08:03:37,937 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a07de52-b64b-4dc6-a09b-a42446f28ea0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-11-19 08:03:37,941 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-19 08:03:37,969 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:03:37,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:37,984 INFO L262 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 08:03:37,985 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:03:38,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:38,001 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 08:03:38,001 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:03:38,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:03:38,033 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 [2023-11-19 08:03:38,035 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 9 transitions. cyclomatic complexity: 2 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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) [2023-11-19 08:03:38,074 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 9 transitions. cyclomatic complexity: 2. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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 13 states and 17 transitions. Complement of second has 4 states. [2023-11-19 08:03:38,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-19 08:03:38,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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) [2023-11-19 08:03:38,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2023-11-19 08:03:38,078 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 4 letters. Loop has 3 letters. [2023-11-19 08:03:38,079 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 08:03:38,080 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 7 letters. Loop has 3 letters. [2023-11-19 08:03:38,080 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 08:03:38,080 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 4 letters. Loop has 6 letters. [2023-11-19 08:03:38,080 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 08:03:38,081 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 17 transitions. [2023-11-19 08:03:38,085 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-19 08:03:38,085 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 12 states and 15 transitions. [2023-11-19 08:03:38,085 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2023-11-19 08:03:38,086 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2023-11-19 08:03:38,086 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 15 transitions. [2023-11-19 08:03:38,086 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-19 08:03:38,086 INFO L218 hiAutomatonCegarLoop]: Abstraction has 12 states and 15 transitions. [2023-11-19 08:03:38,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 15 transitions. [2023-11-19 08:03:38,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2023-11-19 08:03:38,089 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) [2023-11-19 08:03:38,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2023-11-19 08:03:38,091 INFO L240 hiAutomatonCegarLoop]: Abstraction has 11 states and 14 transitions. [2023-11-19 08:03:38,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:03:38,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 08:03:38,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:03:38,092 INFO L87 Difference]: Start difference. First operand 11 states and 14 transitions. 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) [2023-11-19 08:03:38,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:03:38,111 INFO L93 Difference]: Finished difference Result 15 states and 18 transitions. [2023-11-19 08:03:38,111 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 18 transitions. [2023-11-19 08:03:38,113 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-19 08:03:38,116 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 15 states and 18 transitions. [2023-11-19 08:03:38,116 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2023-11-19 08:03:38,117 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2023-11-19 08:03:38,117 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 18 transitions. [2023-11-19 08:03:38,117 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-19 08:03:38,118 INFO L218 hiAutomatonCegarLoop]: Abstraction has 15 states and 18 transitions. [2023-11-19 08:03:38,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 18 transitions. [2023-11-19 08:03:38,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 12. [2023-11-19 08:03:38,121 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) [2023-11-19 08:03:38,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 15 transitions. [2023-11-19 08:03:38,122 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12 states and 15 transitions. [2023-11-19 08:03:38,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 08:03:38,129 INFO L428 stractBuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2023-11-19 08:03:38,129 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-19 08:03:38,129 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 15 transitions. [2023-11-19 08:03:38,131 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-19 08:03:38,131 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 08:03:38,131 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 08:03:38,132 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2023-11-19 08:03:38,132 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-19 08:03:38,134 INFO L748 eck$LassoCheckResult]: Stem: 137#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 138#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~nondet2#1, main_#t~post5#1, main_#t~post4#1, main_#t~post3#1, main_~n~0#1, main_~m~0#1, main_~k~0#1, main_~i~0#1, main_~j~0#1;havoc main_#t~nondet1#1;main_~n~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~m~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~k~0#1 := 0;havoc main_~i~0#1;havoc main_~j~0#1; 139#L29 assume !!(10 <= main_~n~0#1 && main_~n~0#1 <= 10000); 134#L30 assume !!(10 <= main_~m~0#1 && main_~m~0#1 <= 10000);main_~i~0#1 := 0; 135#L31-3 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 0; 131#L32-3 [2023-11-19 08:03:38,135 INFO L750 eck$LassoCheckResult]: Loop: 131#L32-3 assume !!(main_~j~0#1 < main_~m~0#1);main_#t~post5#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 130#L32-2 main_#t~post4#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 131#L32-3 [2023-11-19 08:03:38,135 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:03:38,135 INFO L85 PathProgramCache]: Analyzing trace with hash 28695852, now seen corresponding path program 1 times [2023-11-19 08:03:38,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:03:38,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65165069] [2023-11-19 08:03:38,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:38,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:03:38,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:03:38,155 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 08:03:38,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:03:38,174 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 08:03:38,175 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:03:38,175 INFO L85 PathProgramCache]: Analyzing trace with hash 1859, now seen corresponding path program 1 times [2023-11-19 08:03:38,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:03:38,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963657980] [2023-11-19 08:03:38,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:38,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:03:38,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:03:38,186 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 08:03:38,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:03:38,190 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 08:03:38,190 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:03:38,191 INFO L85 PathProgramCache]: Analyzing trace with hash 1806910894, now seen corresponding path program 1 times [2023-11-19 08:03:38,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:03:38,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036673657] [2023-11-19 08:03:38,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:38,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:03:38,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:03:38,215 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 08:03:38,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:03:38,223 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 08:03:38,264 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 08:03:38,264 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 08:03:38,264 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 08:03:38,265 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 08:03:38,265 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-19 08:03:38,265 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:03:38,265 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 08:03:38,265 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 08:03:38,265 INFO L133 ssoRankerPreferences]: Filename of dumped script: nested-1.i_Iteration3_Loop [2023-11-19 08:03:38,265 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 08:03:38,265 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 08:03:38,268 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:03:38,277 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:03:38,281 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:03:38,284 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:03:38,318 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 08:03:38,318 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-19 08:03:38,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:03:38,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a07de52-b64b-4dc6-a09b-a42446f28ea0/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:03:38,321 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a07de52-b64b-4dc6-a09b-a42446f28ea0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:03:38,331 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 08:03:38,331 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 08:03:38,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a07de52-b64b-4dc6-a09b-a42446f28ea0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-19 08:03:38,377 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a07de52-b64b-4dc6-a09b-a42446f28ea0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-11-19 08:03:38,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:03:38,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a07de52-b64b-4dc6-a09b-a42446f28ea0/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:03:38,379 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a07de52-b64b-4dc6-a09b-a42446f28ea0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:03:38,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a07de52-b64b-4dc6-a09b-a42446f28ea0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-11-19 08:03:38,385 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-19 08:03:38,386 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 08:03:38,548 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-19 08:03:38,551 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a07de52-b64b-4dc6-a09b-a42446f28ea0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-11-19 08:03:38,552 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 08:03:38,552 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 08:03:38,552 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 08:03:38,552 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 08:03:38,552 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-19 08:03:38,553 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:03:38,553 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 08:03:38,553 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 08:03:38,553 INFO L133 ssoRankerPreferences]: Filename of dumped script: nested-1.i_Iteration3_Loop [2023-11-19 08:03:38,553 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 08:03:38,553 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 08:03:38,554 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:03:38,569 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:03:38,572 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:03:38,576 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:03:38,622 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 08:03:38,622 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-19 08:03:38,623 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:03:38,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a07de52-b64b-4dc6-a09b-a42446f28ea0/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:03:38,630 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a07de52-b64b-4dc6-a09b-a42446f28ea0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:03:38,636 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 [2023-11-19 08:03:38,648 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 08:03:38,648 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 08:03:38,648 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 08:03:38,649 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 08:03:38,649 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 08:03:38,650 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 08:03:38,650 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 08:03:38,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a07de52-b64b-4dc6-a09b-a42446f28ea0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-11-19 08:03:38,657 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-19 08:03:38,661 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-11-19 08:03:38,662 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-19 08:03:38,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:03:38,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a07de52-b64b-4dc6-a09b-a42446f28ea0/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:03:38,664 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a07de52-b64b-4dc6-a09b-a42446f28ea0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:03:38,673 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-19 08:03:38,673 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-19 08:03:38,673 INFO L513 LassoAnalysis]: Proved termination. [2023-11-19 08:03:38,673 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1, ULTIMATE.start_main_~m~0#1) = -1*ULTIMATE.start_main_~j~0#1 + 1*ULTIMATE.start_main_~m~0#1 Supporting invariants [] [2023-11-19 08:03:38,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a07de52-b64b-4dc6-a09b-a42446f28ea0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-11-19 08:03:38,690 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a07de52-b64b-4dc6-a09b-a42446f28ea0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2023-11-19 08:03:38,691 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-19 08:03:38,708 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:03:38,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:38,718 INFO L262 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 08:03:38,718 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:03:38,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:38,731 WARN L260 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 08:03:38,732 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:03:38,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:03:38,755 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 [2023-11-19 08:03:38,755 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 15 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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) [2023-11-19 08:03:38,782 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 15 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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 24 states and 31 transitions. Complement of second has 7 states. [2023-11-19 08:03:38,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-19 08:03:38,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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) [2023-11-19 08:03:38,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2023-11-19 08:03:38,785 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 5 letters. Loop has 2 letters. [2023-11-19 08:03:38,785 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 08:03:38,785 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 7 letters. Loop has 2 letters. [2023-11-19 08:03:38,785 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 08:03:38,785 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 5 letters. Loop has 4 letters. [2023-11-19 08:03:38,786 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 08:03:38,786 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 31 transitions. [2023-11-19 08:03:38,788 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-19 08:03:38,789 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 17 states and 21 transitions. [2023-11-19 08:03:38,789 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2023-11-19 08:03:38,789 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2023-11-19 08:03:38,789 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 21 transitions. [2023-11-19 08:03:38,790 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-19 08:03:38,790 INFO L218 hiAutomatonCegarLoop]: Abstraction has 17 states and 21 transitions. [2023-11-19 08:03:38,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 21 transitions. [2023-11-19 08:03:38,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 12. [2023-11-19 08:03:38,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 11 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) [2023-11-19 08:03:38,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2023-11-19 08:03:38,792 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12 states and 14 transitions. [2023-11-19 08:03:38,792 INFO L428 stractBuchiCegarLoop]: Abstraction has 12 states and 14 transitions. [2023-11-19 08:03:38,792 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-11-19 08:03:38,793 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 14 transitions. [2023-11-19 08:03:38,793 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-19 08:03:38,793 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 08:03:38,793 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 08:03:38,794 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:03:38,794 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-19 08:03:38,794 INFO L748 eck$LassoCheckResult]: Stem: 217#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 218#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~nondet2#1, main_#t~post5#1, main_#t~post4#1, main_#t~post3#1, main_~n~0#1, main_~m~0#1, main_~k~0#1, main_~i~0#1, main_~j~0#1;havoc main_#t~nondet1#1;main_~n~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~m~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~k~0#1 := 0;havoc main_~i~0#1;havoc main_~j~0#1; 219#L29 assume !!(10 <= main_~n~0#1 && main_~n~0#1 <= 10000); 214#L30 assume !!(10 <= main_~m~0#1 && main_~m~0#1 <= 10000);main_~i~0#1 := 0; 215#L31-3 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 0; 216#L32-3 assume !!(main_~j~0#1 < main_~m~0#1);main_#t~post5#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 212#L32-2 main_#t~post4#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 213#L32-3 assume !(main_~j~0#1 < main_~m~0#1); 220#L31-2 main_#t~post3#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 221#L31-3 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 0; 211#L32-3 [2023-11-19 08:03:38,795 INFO L750 eck$LassoCheckResult]: Loop: 211#L32-3 assume !!(main_~j~0#1 < main_~m~0#1);main_#t~post5#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 210#L32-2 main_#t~post4#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 211#L32-3 [2023-11-19 08:03:38,795 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:03:38,795 INFO L85 PathProgramCache]: Analyzing trace with hash 857348446, now seen corresponding path program 1 times [2023-11-19 08:03:38,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:03:38,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212662974] [2023-11-19 08:03:38,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:38,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:03:38,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:38,910 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:03:38,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:03:38,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212662974] [2023-11-19 08:03:38,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212662974] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 08:03:38,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [223397521] [2023-11-19 08:03:38,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:38,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:03:38,912 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a07de52-b64b-4dc6-a09b-a42446f28ea0/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:03:38,919 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a07de52-b64b-4dc6-a09b-a42446f28ea0/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:03:38,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a07de52-b64b-4dc6-a09b-a42446f28ea0/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-19 08:03:38,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:38,972 INFO L262 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 08:03:38,974 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:03:39,056 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:03:39,056 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 08:03:39,085 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a07de52-b64b-4dc6-a09b-a42446f28ea0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-11-19 08:03:39,105 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a07de52-b64b-4dc6-a09b-a42446f28ea0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-11-19 08:03:39,119 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:03:39,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [223397521] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 08:03:39,120 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 08:03:39,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2023-11-19 08:03:39,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221037569] [2023-11-19 08:03:39,120 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 08:03:39,120 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-19 08:03:39,121 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:03:39,121 INFO L85 PathProgramCache]: Analyzing trace with hash 1859, now seen corresponding path program 2 times [2023-11-19 08:03:39,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:03:39,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280063435] [2023-11-19 08:03:39,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:39,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:03:39,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:03:39,126 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 08:03:39,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:03:39,129 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 08:03:39,151 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 08:03:39,152 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 08:03:39,152 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 08:03:39,152 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 08:03:39,152 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-19 08:03:39,152 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:03:39,152 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 08:03:39,152 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 08:03:39,152 INFO L133 ssoRankerPreferences]: Filename of dumped script: nested-1.i_Iteration4_Loop [2023-11-19 08:03:39,152 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 08:03:39,152 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 08:03:39,153 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:03:39,160 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:03:39,164 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:03:39,166 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:03:39,198 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 08:03:39,198 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-19 08:03:39,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:03:39,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a07de52-b64b-4dc6-a09b-a42446f28ea0/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:03:39,214 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a07de52-b64b-4dc6-a09b-a42446f28ea0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:03:39,218 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 08:03:39,218 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 08:03:39,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a07de52-b64b-4dc6-a09b-a42446f28ea0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-11-19 08:03:39,263 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a07de52-b64b-4dc6-a09b-a42446f28ea0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2023-11-19 08:03:39,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:03:39,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a07de52-b64b-4dc6-a09b-a42446f28ea0/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:03:39,265 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a07de52-b64b-4dc6-a09b-a42446f28ea0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:03:39,272 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-19 08:03:39,272 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 08:03:39,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a07de52-b64b-4dc6-a09b-a42446f28ea0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-11-19 08:03:39,480 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-19 08:03:39,490 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a07de52-b64b-4dc6-a09b-a42446f28ea0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2023-11-19 08:03:39,490 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 08:03:39,490 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 08:03:39,490 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 08:03:39,490 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 08:03:39,490 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-19 08:03:39,490 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:03:39,491 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 08:03:39,491 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 08:03:39,491 INFO L133 ssoRankerPreferences]: Filename of dumped script: nested-1.i_Iteration4_Loop [2023-11-19 08:03:39,491 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 08:03:39,491 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 08:03:39,492 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:03:39,499 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:03:39,503 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:03:39,506 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:03:39,541 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 08:03:39,541 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-19 08:03:39,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:03:39,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a07de52-b64b-4dc6-a09b-a42446f28ea0/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:03:39,543 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a07de52-b64b-4dc6-a09b-a42446f28ea0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:03:39,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a07de52-b64b-4dc6-a09b-a42446f28ea0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-11-19 08:03:39,549 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 [2023-11-19 08:03:39,561 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 08:03:39,562 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 08:03:39,562 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 08:03:39,562 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 08:03:39,562 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 08:03:39,564 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 08:03:39,564 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 08:03:39,580 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-19 08:03:39,586 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-11-19 08:03:39,586 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-19 08:03:39,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:03:39,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a07de52-b64b-4dc6-a09b-a42446f28ea0/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:03:39,587 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a07de52-b64b-4dc6-a09b-a42446f28ea0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:03:39,590 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-19 08:03:39,591 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-19 08:03:39,591 INFO L513 LassoAnalysis]: Proved termination. [2023-11-19 08:03:39,591 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1, ULTIMATE.start_main_~m~0#1) = -1*ULTIMATE.start_main_~j~0#1 + 1*ULTIMATE.start_main_~m~0#1 Supporting invariants [] [2023-11-19 08:03:39,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a07de52-b64b-4dc6-a09b-a42446f28ea0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2023-11-19 08:03:39,614 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a07de52-b64b-4dc6-a09b-a42446f28ea0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2023-11-19 08:03:39,616 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-19 08:03:39,631 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:03:39,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:39,647 INFO L262 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 08:03:39,648 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:03:39,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:39,675 WARN L260 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 08:03:39,676 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:03:39,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:03:39,699 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 [2023-11-19 08:03:39,700 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 14 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2023-11-19 08:03:39,729 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 14 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 20 states and 25 transitions. Complement of second has 7 states. [2023-11-19 08:03:39,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-19 08:03:39,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2023-11-19 08:03:39,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2023-11-19 08:03:39,734 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 10 letters. Loop has 2 letters. [2023-11-19 08:03:39,734 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 08:03:39,734 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-19 08:03:39,746 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:03:39,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:39,760 INFO L262 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 08:03:39,762 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:03:39,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:39,781 WARN L260 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 08:03:39,782 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:03:39,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:03:39,800 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2023-11-19 08:03:39,800 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 14 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2023-11-19 08:03:39,828 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 14 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 20 states and 25 transitions. Complement of second has 7 states. [2023-11-19 08:03:39,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-19 08:03:39,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2023-11-19 08:03:39,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2023-11-19 08:03:39,832 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 10 letters. Loop has 2 letters. [2023-11-19 08:03:39,832 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 08:03:39,832 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-19 08:03:39,844 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:03:39,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:39,859 INFO L262 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 08:03:39,860 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:03:39,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:39,888 WARN L260 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 08:03:39,889 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:03:39,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:03:39,907 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-11-19 08:03:39,907 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 14 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2023-11-19 08:03:39,934 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 14 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 21 transitions. Complement of second has 6 states. [2023-11-19 08:03:39,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-19 08:03:39,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2023-11-19 08:03:39,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2023-11-19 08:03:39,938 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 10 letters. Loop has 2 letters. [2023-11-19 08:03:39,940 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 08:03:39,940 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 12 letters. Loop has 2 letters. [2023-11-19 08:03:39,941 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 08:03:39,941 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 10 letters. Loop has 4 letters. [2023-11-19 08:03:39,941 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 08:03:39,942 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 21 transitions. [2023-11-19 08:03:39,943 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-19 08:03:39,943 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 0 states and 0 transitions. [2023-11-19 08:03:39,943 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-19 08:03:39,943 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-19 08:03:39,944 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-19 08:03:39,944 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:03:39,944 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 08:03:39,944 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 08:03:39,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:03:39,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-19 08:03:39,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2023-11-19 08:03:39,950 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 10 states, 10 states have (on average 1.9) internal successors, (19), 10 states have internal predecessors, (19), 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) [2023-11-19 08:03:39,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:03:39,950 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2023-11-19 08:03:39,950 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2023-11-19 08:03:39,951 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-19 08:03:39,951 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2023-11-19 08:03:39,951 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-19 08:03:39,951 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-19 08:03:39,951 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-19 08:03:39,951 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:03:39,952 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 08:03:39,952 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 08:03:39,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 08:03:39,954 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 08:03:39,955 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-11-19 08:03:39,955 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-11-19 08:03:39,955 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-19 08:03:39,955 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-11-19 08:03:39,965 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 08:03:39 BoogieIcfgContainer [2023-11-19 08:03:39,965 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-19 08:03:39,966 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 08:03:39,966 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 08:03:39,966 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 08:03:39,967 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:03:36" (3/4) ... [2023-11-19 08:03:39,969 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 08:03:39,970 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 08:03:39,971 INFO L158 Benchmark]: Toolchain (without parser) took 4161.38ms. Allocated memory is still 172.0MB. Free memory was 141.3MB in the beginning and 103.8MB in the end (delta: 37.6MB). Peak memory consumption was 38.6MB. Max. memory is 16.1GB. [2023-11-19 08:03:39,971 INFO L158 Benchmark]: CDTParser took 0.68ms. Allocated memory is still 111.1MB. Free memory is still 60.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 08:03:39,971 INFO L158 Benchmark]: CACSL2BoogieTranslator took 296.89ms. Allocated memory is still 172.0MB. Free memory was 140.9MB in the beginning and 130.8MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 08:03:39,977 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.08ms. Allocated memory is still 172.0MB. Free memory was 130.8MB in the beginning and 129.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 08:03:39,977 INFO L158 Benchmark]: Boogie Preprocessor took 45.68ms. Allocated memory is still 172.0MB. Free memory was 129.3MB in the beginning and 128.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 08:03:39,978 INFO L158 Benchmark]: RCFGBuilder took 344.99ms. Allocated memory is still 172.0MB. Free memory was 127.8MB in the beginning and 118.4MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 08:03:39,978 INFO L158 Benchmark]: BuchiAutomizer took 3422.41ms. Allocated memory is still 172.0MB. Free memory was 118.0MB in the beginning and 103.8MB in the end (delta: 14.2MB). Peak memory consumption was 15.5MB. Max. memory is 16.1GB. [2023-11-19 08:03:39,978 INFO L158 Benchmark]: Witness Printer took 4.07ms. Allocated memory is still 172.0MB. Free memory is still 103.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 08:03:39,981 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.68ms. Allocated memory is still 111.1MB. Free memory is still 60.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 296.89ms. Allocated memory is still 172.0MB. Free memory was 140.9MB in the beginning and 130.8MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.08ms. Allocated memory is still 172.0MB. Free memory was 130.8MB in the beginning and 129.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.68ms. Allocated memory is still 172.0MB. Free memory was 129.3MB in the beginning and 128.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 344.99ms. Allocated memory is still 172.0MB. Free memory was 127.8MB in the beginning and 118.4MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 3422.41ms. Allocated memory is still 172.0MB. Free memory was 118.0MB in the beginning and 103.8MB in the end (delta: 14.2MB). Peak memory consumption was 15.5MB. Max. memory is 16.1GB. * Witness Printer took 4.07ms. Allocated memory is still 172.0MB. Free memory is still 103.8MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (3 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function ((-1 * i) + n) and consists of 3 locations. One deterministic module has affine ranking function ((-1 * j) + m) and consists of 4 locations. One nondeterministic module has affine ranking function ((-1 * j) + m) and consists of 4 locations. 3 modules have a trivial ranking function, the largest among these consists of 10 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.3s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 2.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.6s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 9 StatesRemovedByMinimization, 3 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, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 53 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 48 mSDsluCounter, 79 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 15 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 43 IncrementalHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 64 mSDtfsCounter, 43 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT1 conc0 concLT1 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital17 mio100 ax100 hnf100 lsp69 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq150 hnf94 smp100 dnf100 smp100 tf111 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 45ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.7s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-11-19 08:03:40,018 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a07de52-b64b-4dc6-a09b-a42446f28ea0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2023-11-19 08:03:40,231 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a07de52-b64b-4dc6-a09b-a42446f28ea0/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-19 08:03:40,431 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a07de52-b64b-4dc6-a09b-a42446f28ea0/bin/uautomizer-verify-uCwYo4JHxu/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