./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-numeric/Binomial.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-numeric/Binomial.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl --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 64bit --witnessprinter.graph.data.programhash c204b56aba09d3ce87e17edffdff1d33aa0b4dc87a1e1140339548dffa982588 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:10:46,118 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:10:46,232 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-11-12 02:10:46,239 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:10:46,241 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:10:46,279 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:10:46,281 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:10:46,282 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:10:46,283 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:10:46,288 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:10:46,289 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:10:46,290 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-12 02:10:46,290 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-12 02:10:46,292 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-12 02:10:46,293 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-12 02:10:46,293 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-12 02:10:46,294 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-12 02:10:46,295 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:10:46,295 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-12 02:10:46,297 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:10:46,297 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:10:46,298 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-12 02:10:46,298 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-12 02:10:46,299 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-12 02:10:46,299 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:10:46,299 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:10:46,300 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-12 02:10:46,300 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:10:46,301 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:10:46,301 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:10:46,302 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:10:46,303 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:10:46,303 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-12 02:10:46,303 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_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c204b56aba09d3ce87e17edffdff1d33aa0b4dc87a1e1140339548dffa982588 [2023-11-12 02:10:46,570 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:10:46,596 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:10:46,599 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:10:46,601 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:10:46,601 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:10:46,603 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/termination-numeric/Binomial.c [2023-11-12 02:10:49,677 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:10:49,929 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:10:49,930 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/sv-benchmarks/c/termination-numeric/Binomial.c [2023-11-12 02:10:49,941 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/data/ab52b4fa4/72f0ea4f055d4662bb83ffb52549416d/FLAG9f1129b3a [2023-11-12 02:10:49,963 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/data/ab52b4fa4/72f0ea4f055d4662bb83ffb52549416d [2023-11-12 02:10:49,971 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:10:49,974 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:10:49,978 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:10:49,978 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:10:49,985 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:10:49,986 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:10:49" (1/1) ... [2023-11-12 02:10:49,989 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d213ab3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:10:49, skipping insertion in model container [2023-11-12 02:10:49,989 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:10:49" (1/1) ... [2023-11-12 02:10:50,018 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:10:50,201 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:10:50,207 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:10:50,223 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:10:50,238 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:10:50,238 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:10:50 WrapperNode [2023-11-12 02:10:50,238 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:10:50,239 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:10:50,240 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:10:50,240 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:10:50,248 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:10:50" (1/1) ... [2023-11-12 02:10:50,253 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:10:50" (1/1) ... [2023-11-12 02:10:50,276 INFO L138 Inliner]: procedures = 6, calls = 8, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 60 [2023-11-12 02:10:50,276 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:10:50,277 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:10:50,277 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:10:50,277 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:10:50,286 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:10:50" (1/1) ... [2023-11-12 02:10:50,286 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:10:50" (1/1) ... [2023-11-12 02:10:50,290 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:10:50" (1/1) ... [2023-11-12 02:10:50,290 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:10:50" (1/1) ... [2023-11-12 02:10:50,301 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:10:50" (1/1) ... [2023-11-12 02:10:50,306 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:10:50" (1/1) ... [2023-11-12 02:10:50,307 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:10:50" (1/1) ... [2023-11-12 02:10:50,308 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:10:50" (1/1) ... [2023-11-12 02:10:50,315 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:10:50,316 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:10:50,316 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:10:50,317 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:10:50,317 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:10:50" (1/1) ... [2023-11-12 02:10:50,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:10:50,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:10:50,354 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:10:50,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-12 02:10:50,389 INFO L130 BoogieDeclarations]: Found specification of procedure fact [2023-11-12 02:10:50,389 INFO L138 BoogieDeclarations]: Found implementation of procedure fact [2023-11-12 02:10:50,389 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:10:50,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:10:50,452 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:10:50,454 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:10:50,610 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:10:50,617 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:10:50,618 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-12 02:10:50,620 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:10:50 BoogieIcfgContainer [2023-11-12 02:10:50,620 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:10:50,622 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-12 02:10:50,622 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-12 02:10:50,626 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-12 02:10:50,627 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-12 02:10:50,627 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 12.11 02:10:49" (1/3) ... [2023-11-12 02:10:50,628 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@458d2a38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.11 02:10:50, skipping insertion in model container [2023-11-12 02:10:50,628 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-12 02:10:50,628 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:10:50" (2/3) ... [2023-11-12 02:10:50,629 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@458d2a38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.11 02:10:50, skipping insertion in model container [2023-11-12 02:10:50,629 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-12 02:10:50,629 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:10:50" (3/3) ... [2023-11-12 02:10:50,630 INFO L332 chiAutomizerObserver]: Analyzing ICFG Binomial.c [2023-11-12 02:10:50,691 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-12 02:10:50,692 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-12 02:10:50,692 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-12 02:10:50,692 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-12 02:10:50,692 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-12 02:10:50,693 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-12 02:10:50,693 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-12 02:10:50,693 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-12 02:10:50,698 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 30 states, 21 states have (on average 1.380952380952381) internal successors, (29), 21 states have internal predecessors, (29), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-12 02:10:50,721 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 19 [2023-11-12 02:10:50,722 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-12 02:10:50,722 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-12 02:10:50,728 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-11-12 02:10:50,728 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-12 02:10:50,729 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-12 02:10:50,729 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 30 states, 21 states have (on average 1.380952380952381) internal successors, (29), 21 states have internal predecessors, (29), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-12 02:10:50,733 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 19 [2023-11-12 02:10:50,733 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-12 02:10:50,733 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-12 02:10:50,734 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-11-12 02:10:50,734 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-12 02:10:50,742 INFO L748 eck$LassoCheckResult]: Stem: 27#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~ret9#1, main_#t~ret10#1, main_#t~post8#1, main_~k~0#1, main_#t~post7#1, main_~n~0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_#t~nondet4#1;main_~x~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 15#L35true assume !(main_~x~0#1 < 0);havoc main_#t~nondet5#1;main_~y~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 28#L38true assume !(main_~y~0#1 < 0);havoc main_#t~nondet6#1;main_~z~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;main_~n~0#1 := 0; 11#L41-3true [2023-11-12 02:10:50,743 INFO L750 eck$LassoCheckResult]: Loop: 11#L41-3true assume !!(main_~n~0#1 <= main_~x~0#1);main_~k~0#1 := 0; 21#L42-3true assume !(main_~k~0#1 <= main_~x~0#1); 30#L42-4true havoc main_~k~0#1; 13#L41-2true main_#t~post7#1 := main_~n~0#1;main_~n~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1; 11#L41-3true [2023-11-12 02:10:50,749 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:10:50,749 INFO L85 PathProgramCache]: Analyzing trace with hash 1171944, now seen corresponding path program 1 times [2023-11-12 02:10:50,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:10:50,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274589941] [2023-11-12 02:10:50,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:10:50,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:10:50,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:10:50,851 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:10:50,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:10:50,872 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:10:50,875 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:10:50,876 INFO L85 PathProgramCache]: Analyzing trace with hash 1792233, now seen corresponding path program 1 times [2023-11-12 02:10:50,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:10:50,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816968514] [2023-11-12 02:10:50,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:10:50,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:10:50,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:10:50,888 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:10:50,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:10:50,895 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:10:50,897 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:10:50,897 INFO L85 PathProgramCache]: Analyzing trace with hash -15995056, now seen corresponding path program 1 times [2023-11-12 02:10:50,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:10:50,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131536702] [2023-11-12 02:10:50,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:10:50,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:10:50,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:10:51,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:10:51,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:10:51,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131536702] [2023-11-12 02:10:51,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131536702] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:10:51,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:10:51,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:10:51,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927027180] [2023-11-12 02:10:51,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:10:51,099 INFO L210 LassoAnalysis]: Preferences: [2023-11-12 02:10:51,100 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-12 02:10:51,100 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-12 02:10:51,100 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-12 02:10:51,100 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-12 02:10:51,101 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:10:51,101 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-12 02:10:51,101 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-12 02:10:51,102 INFO L133 ssoRankerPreferences]: Filename of dumped script: Binomial.c_Iteration1_Loop [2023-11-12 02:10:51,102 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-12 02:10:51,102 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-12 02:10:51,122 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:10:51,140 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:10:51,147 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:10:51,210 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-12 02:10:51,210 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-12 02:10:51,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:10:51,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:10:51,220 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:10:51,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-12 02:10:51,227 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-12 02:10:51,227 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:10:51,247 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-12 02:10:51,247 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~k~0#1=0} Honda state: {ULTIMATE.start_main_~k~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-12 02:10:51,255 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-11-12 02:10:51,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:10:51,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:10:51,258 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:10:51,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-12 02:10:51,262 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-12 02:10:51,262 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:10:51,284 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-12 02:10:51,284 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post7#1=0} Honda state: {ULTIMATE.start_main_#t~post7#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-12 02:10:51,287 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-11-12 02:10:51,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:10:51,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:10:51,292 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:10:51,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-12 02:10:51,300 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-12 02:10:51,300 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:10:51,315 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-11-12 02:10:51,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:10:51,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:10:51,317 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:10:51,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-12 02:10:51,324 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-12 02:10:51,324 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:10:51,425 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-12 02:10:51,428 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-11-12 02:10:51,429 INFO L210 LassoAnalysis]: Preferences: [2023-11-12 02:10:51,430 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-12 02:10:51,430 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-12 02:10:51,430 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-12 02:10:51,430 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-12 02:10:51,430 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:10:51,430 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-12 02:10:51,430 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-12 02:10:51,430 INFO L133 ssoRankerPreferences]: Filename of dumped script: Binomial.c_Iteration1_Loop [2023-11-12 02:10:51,430 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-12 02:10:51,431 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-12 02:10:51,432 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:10:51,441 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:10:51,446 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:10:51,499 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-12 02:10:51,503 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-12 02:10:51,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:10:51,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:10:51,508 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:10:51,512 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 [2023-11-12 02:10:51,526 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:10:51,526 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-12 02:10:51,527 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:10:51,527 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:10:51,527 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-12 02:10:51,530 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-12 02:10:51,531 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-12 02:10:51,533 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-12 02:10:51,544 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-12 02:10:51,555 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-11-12 02:10:51,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:10:51,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:10:51,563 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:10:51,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-12 02:10:51,573 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 [2023-11-12 02:10:51,593 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:10:51,593 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-12 02:10:51,593 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:10:51,593 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:10:51,593 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-12 02:10:51,594 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-12 02:10:51,594 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-12 02:10:51,611 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-12 02:10:51,622 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-11-12 02:10:51,623 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:10:51,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:10:51,624 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:10:51,633 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 [2023-11-12 02:10:51,646 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:10:51,646 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-12 02:10:51,646 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:10:51,646 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:10:51,646 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-12 02:10:51,649 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-12 02:10:51,650 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-12 02:10:51,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-12 02:10:51,671 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-12 02:10:51,686 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-12 02:10:51,686 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-12 02:10:51,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:10:51,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:10:51,744 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:10:51,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-11-12 02:10:51,748 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-12 02:10:51,749 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-12 02:10:51,749 INFO L513 LassoAnalysis]: Proved termination. [2023-11-12 02:10:51,749 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0#1) = -1*ULTIMATE.start_main_~n~0#1 Supporting invariants [] [2023-11-12 02:10:51,755 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2023-11-12 02:10:51,759 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-12 02:10:51,786 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:10:51,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:10:51,804 INFO L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-12 02:10:51,805 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:10:51,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:10:51,827 WARN L260 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-12 02:10:51,828 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:10:51,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:10:51,967 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2023-11-12 02:10:51,970 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 30 states, 21 states have (on average 1.380952380952381) internal successors, (29), 21 states have internal predecessors, (29), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:10:52,150 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 30 states, 21 states have (on average 1.380952380952381) internal successors, (29), 21 states have internal predecessors, (29), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7). Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 75 states and 109 transitions. Complement of second has 13 states. [2023-11-12 02:10:52,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2023-11-12 02:10:52,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:10:52,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 55 transitions. [2023-11-12 02:10:52,168 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 55 transitions. Stem has 4 letters. Loop has 4 letters. [2023-11-12 02:10:52,169 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-12 02:10:52,170 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 55 transitions. Stem has 8 letters. Loop has 4 letters. [2023-11-12 02:10:52,172 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-12 02:10:52,172 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 55 transitions. Stem has 4 letters. Loop has 8 letters. [2023-11-12 02:10:52,172 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-12 02:10:52,173 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 75 states and 109 transitions. [2023-11-12 02:10:52,195 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 19 [2023-11-12 02:10:52,207 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 75 states to 35 states and 50 transitions. [2023-11-12 02:10:52,208 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 30 [2023-11-12 02:10:52,209 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 31 [2023-11-12 02:10:52,209 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 50 transitions. [2023-11-12 02:10:52,211 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-12 02:10:52,211 INFO L218 hiAutomatonCegarLoop]: Abstraction has 35 states and 50 transitions. [2023-11-12 02:10:52,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states and 50 transitions. [2023-11-12 02:10:52,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 32. [2023-11-12 02:10:52,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 24 states have (on average 1.25) internal successors, (30), 23 states have internal predecessors, (30), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-12 02:10:52,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 44 transitions. [2023-11-12 02:10:52,259 INFO L240 hiAutomatonCegarLoop]: Abstraction has 32 states and 44 transitions. [2023-11-12 02:10:52,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:10:52,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:10:52,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:10:52,263 INFO L87 Difference]: Start difference. First operand 32 states and 44 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:10:52,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:10:52,331 INFO L93 Difference]: Finished difference Result 30 states and 39 transitions. [2023-11-12 02:10:52,331 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 39 transitions. [2023-11-12 02:10:52,357 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2023-11-12 02:10:52,367 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 20 [2023-11-12 02:10:52,371 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 29 states and 38 transitions. [2023-11-12 02:10:52,372 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2023-11-12 02:10:52,372 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2023-11-12 02:10:52,372 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 38 transitions. [2023-11-12 02:10:52,373 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:10:52,373 INFO L218 hiAutomatonCegarLoop]: Abstraction has 29 states and 38 transitions. [2023-11-12 02:10:52,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 38 transitions. [2023-11-12 02:10:52,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 27. [2023-11-12 02:10:52,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 18 states have internal predecessors, (22), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-12 02:10:52,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 36 transitions. [2023-11-12 02:10:52,382 INFO L240 hiAutomatonCegarLoop]: Abstraction has 27 states and 36 transitions. [2023-11-12 02:10:52,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:10:52,384 INFO L428 stractBuchiCegarLoop]: Abstraction has 27 states and 36 transitions. [2023-11-12 02:10:52,384 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-12 02:10:52,384 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 36 transitions. [2023-11-12 02:10:52,385 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 20 [2023-11-12 02:10:52,385 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-12 02:10:52,385 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-12 02:10:52,386 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-11-12 02:10:52,387 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:10:52,387 INFO L748 eck$LassoCheckResult]: Stem: 256#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 244#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~ret9#1, main_#t~ret10#1, main_#t~post8#1, main_~k~0#1, main_#t~post7#1, main_~n~0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_#t~nondet4#1;main_~x~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 245#L35 assume !(main_~x~0#1 < 0);havoc main_#t~nondet5#1;main_~y~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 251#L38 assume !(main_~y~0#1 < 0);havoc main_#t~nondet6#1;main_~z~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;main_~n~0#1 := 0; 247#L41-3 [2023-11-12 02:10:52,387 INFO L750 eck$LassoCheckResult]: Loop: 247#L41-3 assume !!(main_~n~0#1 <= main_~x~0#1);main_~k~0#1 := 0; 248#L42-3 assume !!(main_~k~0#1 <= main_~x~0#1); 253#L43 assume !(main_~k~0#1 <= main_~n~0#1);assume { :begin_inline_binomialCoefficient } true;binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1 := main_~k~0#1, main_~n~0#1;havoc binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;binomialCoefficient_~n#1 := binomialCoefficient_#in~n#1;binomialCoefficient_~k#1 := binomialCoefficient_#in~k#1; 231#L30-5 call binomialCoefficient_#t~ret1#1 := fact(binomialCoefficient_~n#1);< 232#$Ultimate##0 ~n := #in~n; 254#L25 assume ~n <= 0;#res := 1; 243#factFINAL assume true; 233#factEXIT >#78#return; 237#L30-6 call binomialCoefficient_#t~ret2#1 := fact(binomialCoefficient_~k#1);< 232#$Ultimate##0 ~n := #in~n; 254#L25 assume ~n <= 0;#res := 1; 243#factFINAL assume true; 233#factEXIT >#80#return; 239#L30-7 call binomialCoefficient_#t~ret3#1 := fact(binomialCoefficient_~n#1 - binomialCoefficient_~k#1);< 232#$Ultimate##0 ~n := #in~n; 254#L25 assume ~n <= 0;#res := 1; 243#factFINAL assume true; 233#factEXIT >#82#return; 242#L30-8 binomialCoefficient_#res#1 := (if binomialCoefficient_#t~ret1#1 < 0 && 0 != binomialCoefficient_#t~ret1#1 % (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) then (if binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1 < 0 then binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) - 1 else 1 + binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1)) else binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1));havoc binomialCoefficient_#t~ret1#1;havoc binomialCoefficient_#t~ret2#1;havoc binomialCoefficient_#t~ret3#1; 246#binomialCoefficient_returnLabel#2 main_#t~ret10#1 := binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;havoc binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1;assume { :end_inline_binomialCoefficient } true;havoc main_#t~ret10#1; 252#L42-2 main_#t~post8#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post8#1;havoc main_#t~post8#1; 255#L42-3 assume !(main_~k~0#1 <= main_~x~0#1); 257#L42-4 havoc main_~k~0#1; 250#L41-2 main_#t~post7#1 := main_~n~0#1;main_~n~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1; 247#L41-3 [2023-11-12 02:10:52,388 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:10:52,388 INFO L85 PathProgramCache]: Analyzing trace with hash 1171944, now seen corresponding path program 2 times [2023-11-12 02:10:52,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:10:52,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444402979] [2023-11-12 02:10:52,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:10:52,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:10:52,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:10:52,393 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:10:52,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:10:52,398 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:10:52,399 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:10:52,399 INFO L85 PathProgramCache]: Analyzing trace with hash -2022384732, now seen corresponding path program 1 times [2023-11-12 02:10:52,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:10:52,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157693322] [2023-11-12 02:10:52,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:10:52,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:10:52,418 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:10:52,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2097912255] [2023-11-12 02:10:52,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:10:52,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:10:52,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:10:52,420 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:10:52,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-12 02:10:52,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:10:52,482 INFO L262 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-12 02:10:52,484 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:10:52,533 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-12 02:10:52,533 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:10:52,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:10:52,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157693322] [2023-11-12 02:10:52,534 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:10:52,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2097912255] [2023-11-12 02:10:52,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2097912255] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:10:52,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:10:52,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:10:52,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661248727] [2023-11-12 02:10:52,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:10:52,535 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-12 02:10:52,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:10:52,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:10:52,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:10:52,536 INFO L87 Difference]: Start difference. First operand 27 states and 36 transitions. cyclomatic complexity: 11 Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-12 02:10:52,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:10:52,608 INFO L93 Difference]: Finished difference Result 29 states and 43 transitions. [2023-11-12 02:10:52,608 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 43 transitions. [2023-11-12 02:10:52,610 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 20 [2023-11-12 02:10:52,611 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 29 states and 43 transitions. [2023-11-12 02:10:52,611 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2023-11-12 02:10:52,612 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2023-11-12 02:10:52,612 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 43 transitions. [2023-11-12 02:10:52,613 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:10:52,613 INFO L218 hiAutomatonCegarLoop]: Abstraction has 29 states and 43 transitions. [2023-11-12 02:10:52,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 43 transitions. [2023-11-12 02:10:52,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2023-11-12 02:10:52,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 20 states have (on average 1.15) internal successors, (23), 20 states have internal predecessors, (23), 7 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) [2023-11-12 02:10:52,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 43 transitions. [2023-11-12 02:10:52,618 INFO L240 hiAutomatonCegarLoop]: Abstraction has 29 states and 43 transitions. [2023-11-12 02:10:52,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:10:52,619 INFO L428 stractBuchiCegarLoop]: Abstraction has 29 states and 43 transitions. [2023-11-12 02:10:52,619 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-12 02:10:52,620 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 29 states and 43 transitions. [2023-11-12 02:10:52,621 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 20 [2023-11-12 02:10:52,621 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-12 02:10:52,621 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-12 02:10:52,622 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-11-12 02:10:52,622 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:10:52,622 INFO L748 eck$LassoCheckResult]: Stem: 393#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 379#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~ret9#1, main_#t~ret10#1, main_#t~post8#1, main_~k~0#1, main_#t~post7#1, main_~n~0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_#t~nondet4#1;main_~x~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 380#L35 assume !(main_~x~0#1 < 0);havoc main_#t~nondet5#1;main_~y~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 387#L38 assume !(main_~y~0#1 < 0);havoc main_#t~nondet6#1;main_~z~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;main_~n~0#1 := 0; 383#L41-3 [2023-11-12 02:10:52,622 INFO L750 eck$LassoCheckResult]: Loop: 383#L41-3 assume !!(main_~n~0#1 <= main_~x~0#1);main_~k~0#1 := 0; 384#L42-3 assume !!(main_~k~0#1 <= main_~x~0#1); 389#L43 assume main_~k~0#1 <= main_~n~0#1;assume { :begin_inline_binomialCoefficient } true;binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1 := main_~n~0#1, main_~k~0#1;havoc binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;binomialCoefficient_~n#1 := binomialCoefficient_#in~n#1;binomialCoefficient_~k#1 := binomialCoefficient_#in~k#1; 372#L30 call binomialCoefficient_#t~ret1#1 := fact(binomialCoefficient_~n#1);< 367#$Ultimate##0 ~n := #in~n; 390#L25 assume ~n <= 0;#res := 1; 391#factFINAL assume true; 368#factEXIT >#72#return; 374#L30-1 call binomialCoefficient_#t~ret2#1 := fact(binomialCoefficient_~k#1);< 367#$Ultimate##0 ~n := #in~n; 390#L25 assume ~n <= 0;#res := 1; 391#factFINAL assume true; 368#factEXIT >#74#return; 371#L30-2 call binomialCoefficient_#t~ret3#1 := fact(binomialCoefficient_~n#1 - binomialCoefficient_~k#1);< 367#$Ultimate##0 ~n := #in~n; 390#L25 assume ~n <= 0;#res := 1; 391#factFINAL assume true; 368#factEXIT >#76#return; 375#L30-3 binomialCoefficient_#res#1 := (if binomialCoefficient_#t~ret1#1 < 0 && 0 != binomialCoefficient_#t~ret1#1 % (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) then (if binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1 < 0 then binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) - 1 else 1 + binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1)) else binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1));havoc binomialCoefficient_#t~ret1#1;havoc binomialCoefficient_#t~ret2#1;havoc binomialCoefficient_#t~ret3#1; 385#binomialCoefficient_returnLabel#1 main_#t~ret9#1 := binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;havoc binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1;assume { :end_inline_binomialCoefficient } true;havoc main_#t~ret9#1; 388#L42-2 main_#t~post8#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post8#1;havoc main_#t~post8#1; 392#L42-3 assume !(main_~k~0#1 <= main_~x~0#1); 394#L42-4 havoc main_~k~0#1; 386#L41-2 main_#t~post7#1 := main_~n~0#1;main_~n~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1; 383#L41-3 [2023-11-12 02:10:52,623 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:10:52,623 INFO L85 PathProgramCache]: Analyzing trace with hash 1171944, now seen corresponding path program 3 times [2023-11-12 02:10:52,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:10:52,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602104076] [2023-11-12 02:10:52,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:10:52,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:10:52,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:10:52,628 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:10:52,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:10:52,632 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:10:52,632 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:10:52,633 INFO L85 PathProgramCache]: Analyzing trace with hash -481826528, now seen corresponding path program 1 times [2023-11-12 02:10:52,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:10:52,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29258372] [2023-11-12 02:10:52,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:10:52,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:10:52,645 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:10:52,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [971311792] [2023-11-12 02:10:52,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:10:52,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:10:52,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:10:52,647 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:10:52,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-12 02:10:52,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:10:52,713 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:10:52,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:10:52,734 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:10:52,735 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:10:52,735 INFO L85 PathProgramCache]: Analyzing trace with hash -1147386361, now seen corresponding path program 1 times [2023-11-12 02:10:52,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:10:52,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579196824] [2023-11-12 02:10:52,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:10:52,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:10:52,750 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:10:52,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1371037114] [2023-11-12 02:10:52,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:10:52,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:10:52,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:10:52,772 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:10:52,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-12 02:10:52,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:10:52,831 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:10:52,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:10:52,857 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:10:53,228 INFO L210 LassoAnalysis]: Preferences: [2023-11-12 02:10:53,228 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-12 02:10:53,229 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-12 02:10:53,229 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-12 02:10:53,229 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-12 02:10:53,229 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:10:53,229 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-12 02:10:53,229 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-12 02:10:53,230 INFO L133 ssoRankerPreferences]: Filename of dumped script: Binomial.c_Iteration3_Loop [2023-11-12 02:10:53,230 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-12 02:10:53,230 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-12 02:10:53,232 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:10:53,235 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:10:53,237 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:10:53,240 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:10:53,242 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:10:53,245 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:10:53,248 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:10:53,250 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:10:53,253 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:10:53,263 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:10:53,266 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:10:53,269 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:10:53,272 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:10:53,339 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-12 02:10:53,339 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-12 02:10:53,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:10:53,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:10:53,343 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:10:53,351 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-12 02:10:53,351 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:10:53,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-11-12 02:10:53,374 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-12 02:10:53,374 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~ret9#1=0} Honda state: {ULTIMATE.start_main_#t~ret9#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-12 02:10:53,383 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2023-11-12 02:10:53,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:10:53,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:10:53,386 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:10:53,396 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-12 02:10:53,396 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:10:53,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-11-12 02:10:53,424 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-12 02:10:53,424 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_binomialCoefficient_#t~ret3#1=0} Honda state: {ULTIMATE.start_binomialCoefficient_#t~ret3#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-12 02:10:53,437 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2023-11-12 02:10:53,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:10:53,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:10:53,439 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:10:53,444 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-12 02:10:53,444 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:10:53,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-11-12 02:10:53,466 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-12 02:10:53,466 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_binomialCoefficient_#t~ret2#1=0} Honda state: {ULTIMATE.start_binomialCoefficient_#t~ret2#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-12 02:10:53,478 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2023-11-12 02:10:53,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:10:53,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:10:53,480 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:10:53,489 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-12 02:10:53,489 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:10:53,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2023-11-12 02:10:53,515 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-12 02:10:53,516 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_binomialCoefficient_~k#1=0} Honda state: {ULTIMATE.start_binomialCoefficient_~k#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-12 02:10:53,524 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2023-11-12 02:10:53,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:10:53,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:10:53,526 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:10:53,530 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-12 02:10:53,531 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:10:53,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-11-12 02:10:53,560 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-12 02:10:53,560 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post7#1=0} Honda state: {ULTIMATE.start_main_#t~post7#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-12 02:10:53,569 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2023-11-12 02:10:53,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:10:53,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:10:53,571 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:10:53,576 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-12 02:10:53,576 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:10:53,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-11-12 02:10:53,598 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-12 02:10:53,598 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_binomialCoefficient_#in~k#1=0} Honda state: {ULTIMATE.start_binomialCoefficient_#in~k#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-12 02:10:53,602 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2023-11-12 02:10:53,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:10:53,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:10:53,604 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:10:53,612 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-12 02:10:53,613 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:10:53,625 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2023-11-12 02:10:53,635 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-12 02:10:53,635 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_binomialCoefficient_#in~n#1=0} Honda state: {ULTIMATE.start_binomialCoefficient_#in~n#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-12 02:10:53,644 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2023-11-12 02:10:53,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:10:53,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:10:53,646 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:10:53,652 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-12 02:10:53,652 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:10:53,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2023-11-12 02:10:53,675 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-12 02:10:53,676 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~k~0#1=0} Honda state: {ULTIMATE.start_main_~k~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-12 02:10:53,688 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2023-11-12 02:10:53,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:10:53,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:10:53,690 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:10:53,701 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-12 02:10:53,701 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:10:53,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2023-11-12 02:10:53,725 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2023-11-12 02:10:53,726 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:10:53,726 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:10:53,727 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:10:53,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2023-11-12 02:10:53,736 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-12 02:10:53,736 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:10:53,800 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-12 02:10:53,808 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2023-11-12 02:10:53,808 INFO L210 LassoAnalysis]: Preferences: [2023-11-12 02:10:53,808 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-12 02:10:53,808 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-12 02:10:53,808 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-12 02:10:53,808 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-12 02:10:53,808 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:10:53,808 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-12 02:10:53,809 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-12 02:10:53,809 INFO L133 ssoRankerPreferences]: Filename of dumped script: Binomial.c_Iteration3_Loop [2023-11-12 02:10:53,809 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-12 02:10:53,809 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-12 02:10:53,811 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:10:53,814 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:10:53,816 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:10:53,819 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:10:53,822 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:10:53,825 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:10:53,827 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:10:53,830 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:10:53,833 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:10:53,843 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:10:53,847 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:10:53,850 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:10:53,854 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:10:53,938 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-12 02:10:53,938 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-12 02:10:53,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:10:53,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:10:53,944 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:10:53,948 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 [2023-11-12 02:10:53,961 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:10:53,961 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-12 02:10:53,961 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:10:53,961 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:10:53,961 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-12 02:10:53,962 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-12 02:10:53,962 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-12 02:10:53,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2023-11-12 02:10:53,987 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-12 02:10:53,996 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2023-11-12 02:10:53,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:10:53,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:10:53,999 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:10:54,008 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 [2023-11-12 02:10:54,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2023-11-12 02:10:54,022 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:10:54,022 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-12 02:10:54,022 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:10:54,023 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:10:54,023 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-12 02:10:54,024 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-12 02:10:54,024 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-12 02:10:54,043 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-12 02:10:54,052 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2023-11-12 02:10:54,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:10:54,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:10:54,054 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:10:54,059 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-12 02:10:54,071 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:10:54,071 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-12 02:10:54,072 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:10:54,072 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:10:54,072 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-12 02:10:54,074 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-12 02:10:54,074 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-12 02:10:54,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2023-11-12 02:10:54,083 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-12 02:10:54,088 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2023-11-12 02:10:54,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:10:54,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:10:54,090 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:10:54,095 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 [2023-11-12 02:10:54,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2023-11-12 02:10:54,108 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:10:54,108 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-12 02:10:54,108 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:10:54,108 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:10:54,108 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-12 02:10:54,109 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-12 02:10:54,109 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-12 02:10:54,111 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-12 02:10:54,114 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2023-11-12 02:10:54,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:10:54,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:10:54,116 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:10:54,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2023-11-12 02:10:54,119 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 [2023-11-12 02:10:54,129 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:10:54,129 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-12 02:10:54,129 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:10:54,130 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:10:54,130 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-12 02:10:54,133 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-12 02:10:54,133 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-12 02:10:54,140 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-12 02:10:54,142 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2023-11-12 02:10:54,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:10:54,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:10:54,144 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:10:54,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2023-11-12 02:10:54,147 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 [2023-11-12 02:10:54,157 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:10:54,157 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-12 02:10:54,157 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:10:54,157 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:10:54,158 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-12 02:10:54,159 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-12 02:10:54,159 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-12 02:10:54,161 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-12 02:10:54,163 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2023-11-12 02:10:54,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:10:54,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:10:54,165 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:10:54,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2023-11-12 02:10:54,169 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 [2023-11-12 02:10:54,179 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:10:54,179 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-12 02:10:54,180 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:10:54,180 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:10:54,180 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-12 02:10:54,183 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-12 02:10:54,183 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-12 02:10:54,198 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-12 02:10:54,201 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2023-11-12 02:10:54,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:10:54,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:10:54,202 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:10:54,205 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2023-11-12 02:10:54,206 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 [2023-11-12 02:10:54,216 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:10:54,216 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-12 02:10:54,216 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:10:54,216 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:10:54,217 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-12 02:10:54,217 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-12 02:10:54,217 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-12 02:10:54,219 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-12 02:10:54,222 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2023-11-12 02:10:54,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:10:54,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:10:54,224 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:10:54,233 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2023-11-12 02:10:54,235 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 [2023-11-12 02:10:54,248 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:10:54,248 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-12 02:10:54,248 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:10:54,248 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:10:54,248 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-12 02:10:54,251 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-12 02:10:54,251 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-12 02:10:54,267 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-12 02:10:54,272 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-11-12 02:10:54,272 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-12 02:10:54,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:10:54,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:10:54,276 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:10:54,278 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-12 02:10:54,278 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-12 02:10:54,278 INFO L513 LassoAnalysis]: Proved termination. [2023-11-12 02:10:54,278 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0#1) = -2*ULTIMATE.start_main_~n~0#1 + 1 Supporting invariants [] [2023-11-12 02:10:54,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2023-11-12 02:10:54,287 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2023-11-12 02:10:54,288 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-12 02:10:54,307 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:10:54,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:10:54,313 INFO L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-12 02:10:54,313 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:10:54,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:10:54,354 INFO L262 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-12 02:10:54,357 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:10:54,558 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-12 02:10:54,559 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 6 loop predicates [2023-11-12 02:10:54,559 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 29 states and 43 transitions. cyclomatic complexity: 16 Second operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 8 states have internal predecessors, (19), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-12 02:10:54,941 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 29 states and 43 transitions. cyclomatic complexity: 16. Second operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 8 states have internal predecessors, (19), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Result 119 states and 178 transitions. Complement of second has 28 states. [2023-11-12 02:10:54,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 9 states 1 stem states 7 non-accepting loop states 1 accepting loop states [2023-11-12 02:10:54,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 8 states have internal predecessors, (19), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-12 02:10:54,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 71 transitions. [2023-11-12 02:10:54,946 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 71 transitions. Stem has 4 letters. Loop has 24 letters. [2023-11-12 02:10:54,947 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-12 02:10:54,947 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 71 transitions. Stem has 28 letters. Loop has 24 letters. [2023-11-12 02:10:54,949 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-12 02:10:54,949 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 71 transitions. Stem has 4 letters. Loop has 48 letters. [2023-11-12 02:10:54,952 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-12 02:10:54,952 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 119 states and 178 transitions. [2023-11-12 02:10:54,963 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 33 [2023-11-12 02:10:54,974 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 119 states to 117 states and 176 transitions. [2023-11-12 02:10:54,974 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 59 [2023-11-12 02:10:54,975 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 60 [2023-11-12 02:10:54,976 INFO L73 IsDeterministic]: Start isDeterministic. Operand 117 states and 176 transitions. [2023-11-12 02:10:54,983 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-12 02:10:54,983 INFO L218 hiAutomatonCegarLoop]: Abstraction has 117 states and 176 transitions. [2023-11-12 02:10:54,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states and 176 transitions. [2023-11-12 02:10:55,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 112. [2023-11-12 02:10:55,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 72 states have (on average 1.2083333333333333) internal successors, (87), 75 states have internal predecessors, (87), 30 states have call successors, (30), 6 states have call predecessors, (30), 10 states have return successors, (50), 30 states have call predecessors, (50), 30 states have call successors, (50) [2023-11-12 02:10:55,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 167 transitions. [2023-11-12 02:10:55,022 INFO L240 hiAutomatonCegarLoop]: Abstraction has 112 states and 167 transitions. [2023-11-12 02:10:55,022 INFO L428 stractBuchiCegarLoop]: Abstraction has 112 states and 167 transitions. [2023-11-12 02:10:55,022 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-11-12 02:10:55,024 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 112 states and 167 transitions. [2023-11-12 02:10:55,030 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 33 [2023-11-12 02:10:55,030 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-12 02:10:55,030 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-12 02:10:55,032 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2023-11-12 02:10:55,032 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [6, 6, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:10:55,033 INFO L748 eck$LassoCheckResult]: Stem: 716#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 680#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~ret9#1, main_#t~ret10#1, main_#t~post8#1, main_~k~0#1, main_#t~post7#1, main_~n~0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_#t~nondet4#1;main_~x~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 681#L35 assume !(main_~x~0#1 < 0);havoc main_#t~nondet5#1;main_~y~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 699#L38 assume !(main_~y~0#1 < 0);havoc main_#t~nondet6#1;main_~z~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;main_~n~0#1 := 0; 717#L41-3 assume !!(main_~n~0#1 <= main_~x~0#1);main_~k~0#1 := 0; 690#L42-3 [2023-11-12 02:10:55,033 INFO L750 eck$LassoCheckResult]: Loop: 690#L42-3 assume !!(main_~k~0#1 <= main_~x~0#1); 702#L43 assume !(main_~k~0#1 <= main_~n~0#1);assume { :begin_inline_binomialCoefficient } true;binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1 := main_~k~0#1, main_~n~0#1;havoc binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;binomialCoefficient_~n#1 := binomialCoefficient_#in~n#1;binomialCoefficient_~k#1 := binomialCoefficient_#in~k#1; 704#L30-5 call binomialCoefficient_#t~ret1#1 := fact(binomialCoefficient_~n#1);< 731#$Ultimate##0 ~n := #in~n; 739#L25 assume !(~n <= 0); 737#L26 call #t~ret0 := fact(~n - 1);< 687#$Ultimate##0 ~n := #in~n; 742#L25 assume ~n <= 0;#res := 1; 741#factFINAL assume true; 735#factEXIT >#70#return; 734#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 733#factFINAL assume true; 726#factEXIT >#78#return; 730#L30-6 call binomialCoefficient_#t~ret2#1 := fact(binomialCoefficient_~k#1);< 731#$Ultimate##0 ~n := #in~n; 739#L25 assume !(~n <= 0); 737#L26 call #t~ret0 := fact(~n - 1);< 687#$Ultimate##0 ~n := #in~n; 742#L25 assume ~n <= 0;#res := 1; 741#factFINAL assume true; 735#factEXIT >#70#return; 734#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 733#factFINAL assume true; 726#factEXIT >#80#return; 728#L30-7 call binomialCoefficient_#t~ret3#1 := fact(binomialCoefficient_~n#1 - binomialCoefficient_~k#1);< 731#$Ultimate##0 ~n := #in~n; 739#L25 assume !(~n <= 0); 737#L26 call #t~ret0 := fact(~n - 1);< 687#$Ultimate##0 ~n := #in~n; 742#L25 assume ~n <= 0;#res := 1; 741#factFINAL assume true; 735#factEXIT >#70#return; 734#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 733#factFINAL assume true; 726#factEXIT >#82#return; 724#L30-8 binomialCoefficient_#res#1 := (if binomialCoefficient_#t~ret1#1 < 0 && 0 != binomialCoefficient_#t~ret1#1 % (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) then (if binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1 < 0 then binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) - 1 else 1 + binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1)) else binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1));havoc binomialCoefficient_#t~ret1#1;havoc binomialCoefficient_#t~ret2#1;havoc binomialCoefficient_#t~ret3#1; 722#binomialCoefficient_returnLabel#2 main_#t~ret10#1 := binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;havoc binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1;assume { :end_inline_binomialCoefficient } true;havoc main_#t~ret10#1; 721#L42-2 main_#t~post8#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post8#1;havoc main_#t~post8#1; 720#L42-3 assume !(main_~k~0#1 <= main_~x~0#1); 718#L42-4 havoc main_~k~0#1; 696#L41-2 main_#t~post7#1 := main_~n~0#1;main_~n~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1; 689#L41-3 assume !!(main_~n~0#1 <= main_~x~0#1);main_~k~0#1 := 0; 690#L42-3 [2023-11-12 02:10:55,033 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:10:55,034 INFO L85 PathProgramCache]: Analyzing trace with hash 36330292, now seen corresponding path program 1 times [2023-11-12 02:10:55,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:10:55,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629184822] [2023-11-12 02:10:55,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:10:55,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:10:55,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:10:55,048 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:10:55,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:10:55,054 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:10:55,055 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:10:55,055 INFO L85 PathProgramCache]: Analyzing trace with hash 1950250366, now seen corresponding path program 1 times [2023-11-12 02:10:55,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:10:55,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738749239] [2023-11-12 02:10:55,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:10:55,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:10:55,069 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:10:55,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [361892070] [2023-11-12 02:10:55,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:10:55,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:10:55,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:10:55,071 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:10:55,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2023-11-12 02:10:55,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:10:55,129 INFO L262 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-12 02:10:55,132 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:10:55,161 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2023-11-12 02:10:55,259 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 39 proven. 17 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-12 02:10:55,259 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:10:55,538 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 3 proven. 40 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-12 02:10:55,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:10:55,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738749239] [2023-11-12 02:10:55,538 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:10:55,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [361892070] [2023-11-12 02:10:55,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [361892070] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:10:55,539 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-12 02:10:55,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 13 [2023-11-12 02:10:55,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018374786] [2023-11-12 02:10:55,539 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-12 02:10:55,540 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-12 02:10:55,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:10:55,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-12 02:10:55,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2023-11-12 02:10:55,541 INFO L87 Difference]: Start difference. First operand 112 states and 167 transitions. cyclomatic complexity: 60 Second operand has 13 states, 10 states have (on average 3.6) internal successors, (36), 12 states have internal predecessors, (36), 8 states have call successors, (10), 2 states have call predecessors, (10), 5 states have return successors, (10), 5 states have call predecessors, (10), 8 states have call successors, (10) [2023-11-12 02:10:55,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:10:55,833 INFO L93 Difference]: Finished difference Result 194 states and 301 transitions. [2023-11-12 02:10:55,833 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 194 states and 301 transitions. [2023-11-12 02:10:55,838 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 55 [2023-11-12 02:10:55,845 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 194 states to 194 states and 301 transitions. [2023-11-12 02:10:55,845 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 98 [2023-11-12 02:10:55,846 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 98 [2023-11-12 02:10:55,846 INFO L73 IsDeterministic]: Start isDeterministic. Operand 194 states and 301 transitions. [2023-11-12 02:10:55,846 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-12 02:10:55,846 INFO L218 hiAutomatonCegarLoop]: Abstraction has 194 states and 301 transitions. [2023-11-12 02:10:55,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states and 301 transitions. [2023-11-12 02:10:55,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 148. [2023-11-12 02:10:55,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 98 states have (on average 1.153061224489796) internal successors, (113), 95 states have internal predecessors, (113), 34 states have call successors, (34), 14 states have call predecessors, (34), 16 states have return successors, (84), 38 states have call predecessors, (84), 34 states have call successors, (84) [2023-11-12 02:10:55,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 231 transitions. [2023-11-12 02:10:55,872 INFO L240 hiAutomatonCegarLoop]: Abstraction has 148 states and 231 transitions. [2023-11-12 02:10:55,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-12 02:10:55,874 INFO L428 stractBuchiCegarLoop]: Abstraction has 148 states and 231 transitions. [2023-11-12 02:10:55,874 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-11-12 02:10:55,874 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 148 states and 231 transitions. [2023-11-12 02:10:55,876 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 35 [2023-11-12 02:10:55,876 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-12 02:10:55,876 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-12 02:10:55,878 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2023-11-12 02:10:55,878 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [9, 9, 6, 6, 6, 6, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:10:55,879 INFO L748 eck$LassoCheckResult]: Stem: 1299#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 1259#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~ret9#1, main_#t~ret10#1, main_#t~post8#1, main_~k~0#1, main_#t~post7#1, main_~n~0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_#t~nondet4#1;main_~x~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 1260#L35 assume !(main_~x~0#1 < 0);havoc main_#t~nondet5#1;main_~y~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 1278#L38 assume !(main_~y~0#1 < 0);havoc main_#t~nondet6#1;main_~z~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;main_~n~0#1 := 0; 1300#L41-3 assume !!(main_~n~0#1 <= main_~x~0#1);main_~k~0#1 := 0; 1268#L42-3 [2023-11-12 02:10:55,879 INFO L750 eck$LassoCheckResult]: Loop: 1268#L42-3 assume !!(main_~k~0#1 <= main_~x~0#1); 1281#L43 assume main_~k~0#1 <= main_~n~0#1;assume { :begin_inline_binomialCoefficient } true;binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1 := main_~n~0#1, main_~k~0#1;havoc binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;binomialCoefficient_~n#1 := binomialCoefficient_#in~n#1;binomialCoefficient_~k#1 := binomialCoefficient_#in~k#1; 1251#L30 call binomialCoefficient_#t~ret1#1 := fact(binomialCoefficient_~n#1);< 1232#$Ultimate##0 ~n := #in~n; 1364#L25 assume !(~n <= 0); 1237#L26 call #t~ret0 := fact(~n - 1);< 1265#$Ultimate##0 ~n := #in~n; 1336#L25 assume !(~n <= 0); 1238#L26 call #t~ret0 := fact(~n - 1);< 1265#$Ultimate##0 ~n := #in~n; 1336#L25 assume ~n <= 0;#res := 1; 1334#factFINAL assume true; 1332#factEXIT >#70#return; 1241#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 1253#factFINAL assume true; 1235#factEXIT >#70#return; 1240#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 1342#factFINAL assume true; 1338#factEXIT >#72#return; 1291#L30-1 call binomialCoefficient_#t~ret2#1 := fact(binomialCoefficient_~k#1);< 1232#$Ultimate##0 ~n := #in~n; 1364#L25 assume !(~n <= 0); 1237#L26 call #t~ret0 := fact(~n - 1);< 1265#$Ultimate##0 ~n := #in~n; 1336#L25 assume !(~n <= 0); 1238#L26 call #t~ret0 := fact(~n - 1);< 1265#$Ultimate##0 ~n := #in~n; 1336#L25 assume ~n <= 0;#res := 1; 1334#factFINAL assume true; 1332#factEXIT >#70#return; 1241#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 1253#factFINAL assume true; 1235#factEXIT >#70#return; 1240#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 1342#factFINAL assume true; 1338#factEXIT >#74#return; 1249#L30-2 call binomialCoefficient_#t~ret3#1 := fact(binomialCoefficient_~n#1 - binomialCoefficient_~k#1);< 1232#$Ultimate##0 ~n := #in~n; 1364#L25 assume !(~n <= 0); 1237#L26 call #t~ret0 := fact(~n - 1);< 1265#$Ultimate##0 ~n := #in~n; 1336#L25 assume !(~n <= 0); 1238#L26 call #t~ret0 := fact(~n - 1);< 1265#$Ultimate##0 ~n := #in~n; 1336#L25 assume ~n <= 0;#res := 1; 1334#factFINAL assume true; 1332#factEXIT >#70#return; 1241#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 1253#factFINAL assume true; 1235#factEXIT >#70#return; 1240#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 1342#factFINAL assume true; 1338#factEXIT >#76#return; 1271#L30-3 binomialCoefficient_#res#1 := (if binomialCoefficient_#t~ret1#1 < 0 && 0 != binomialCoefficient_#t~ret1#1 % (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) then (if binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1 < 0 then binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) - 1 else 1 + binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1)) else binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1));havoc binomialCoefficient_#t~ret1#1;havoc binomialCoefficient_#t~ret2#1;havoc binomialCoefficient_#t~ret3#1; 1272#binomialCoefficient_returnLabel#1 main_#t~ret9#1 := binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;havoc binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1;assume { :end_inline_binomialCoefficient } true;havoc main_#t~ret9#1; 1279#L42-2 main_#t~post8#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post8#1;havoc main_#t~post8#1; 1304#L42-3 assume !(main_~k~0#1 <= main_~x~0#1); 1302#L42-4 havoc main_~k~0#1; 1275#L41-2 main_#t~post7#1 := main_~n~0#1;main_~n~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1; 1267#L41-3 assume !!(main_~n~0#1 <= main_~x~0#1);main_~k~0#1 := 0; 1268#L42-3 [2023-11-12 02:10:55,879 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:10:55,880 INFO L85 PathProgramCache]: Analyzing trace with hash 36330292, now seen corresponding path program 2 times [2023-11-12 02:10:55,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:10:55,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635242709] [2023-11-12 02:10:55,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:10:55,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:10:55,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:10:55,884 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:10:55,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:10:55,888 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:10:55,889 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:10:55,889 INFO L85 PathProgramCache]: Analyzing trace with hash -822334974, now seen corresponding path program 1 times [2023-11-12 02:10:55,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:10:55,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478536832] [2023-11-12 02:10:55,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:10:55,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:10:55,900 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:10:55,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1108926348] [2023-11-12 02:10:55,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:10:55,900 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:10:55,900 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:10:55,901 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:10:55,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2023-11-12 02:10:55,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:10:55,966 INFO L262 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-12 02:10:55,970 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:10:56,111 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 16 proven. 103 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2023-11-12 02:10:56,111 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:10:56,720 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 16 proven. 109 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2023-11-12 02:10:56,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:10:56,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478536832] [2023-11-12 02:10:56,721 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:10:56,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1108926348] [2023-11-12 02:10:56,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1108926348] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:10:56,721 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-12 02:10:56,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 14] total 17 [2023-11-12 02:10:56,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722151145] [2023-11-12 02:10:56,724 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-12 02:10:56,725 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-12 02:10:56,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:10:56,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-12 02:10:56,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2023-11-12 02:10:56,727 INFO L87 Difference]: Start difference. First operand 148 states and 231 transitions. cyclomatic complexity: 88 Second operand has 17 states, 14 states have (on average 2.7857142857142856) internal successors, (39), 14 states have internal predecessors, (39), 10 states have call successors, (11), 1 states have call predecessors, (11), 6 states have return successors, (13), 9 states have call predecessors, (13), 10 states have call successors, (13) [2023-11-12 02:10:57,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:10:57,178 INFO L93 Difference]: Finished difference Result 252 states and 423 transitions. [2023-11-12 02:10:57,178 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 252 states and 423 transitions. [2023-11-12 02:10:57,187 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 65 [2023-11-12 02:10:57,198 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 252 states to 240 states and 407 transitions. [2023-11-12 02:10:57,199 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 121 [2023-11-12 02:10:57,201 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 121 [2023-11-12 02:10:57,201 INFO L73 IsDeterministic]: Start isDeterministic. Operand 240 states and 407 transitions. [2023-11-12 02:10:57,201 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-12 02:10:57,201 INFO L218 hiAutomatonCegarLoop]: Abstraction has 240 states and 407 transitions. [2023-11-12 02:10:57,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states and 407 transitions. [2023-11-12 02:10:57,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 178. [2023-11-12 02:10:57,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 110 states have (on average 1.1363636363636365) internal successors, (125), 107 states have internal predecessors, (125), 46 states have call successors, (46), 14 states have call predecessors, (46), 22 states have return successors, (142), 56 states have call predecessors, (142), 46 states have call successors, (142) [2023-11-12 02:10:57,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 313 transitions. [2023-11-12 02:10:57,232 INFO L240 hiAutomatonCegarLoop]: Abstraction has 178 states and 313 transitions. [2023-11-12 02:10:57,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-12 02:10:57,233 INFO L428 stractBuchiCegarLoop]: Abstraction has 178 states and 313 transitions. [2023-11-12 02:10:57,234 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2023-11-12 02:10:57,235 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 178 states and 313 transitions. [2023-11-12 02:10:57,237 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 41 [2023-11-12 02:10:57,238 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-12 02:10:57,239 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-12 02:10:57,240 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2023-11-12 02:10:57,241 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [7, 7, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:10:57,241 INFO L748 eck$LassoCheckResult]: Stem: 2098#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 2048#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~ret9#1, main_#t~ret10#1, main_#t~post8#1, main_~k~0#1, main_#t~post7#1, main_~n~0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_#t~nondet4#1;main_~x~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 2049#L35 assume !(main_~x~0#1 < 0);havoc main_#t~nondet5#1;main_~y~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 2065#L38 assume !(main_~y~0#1 < 0);havoc main_#t~nondet6#1;main_~z~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;main_~n~0#1 := 0; 2099#L41-3 assume !!(main_~n~0#1 <= main_~x~0#1);main_~k~0#1 := 0; 2057#L42-3 [2023-11-12 02:10:57,241 INFO L750 eck$LassoCheckResult]: Loop: 2057#L42-3 assume !!(main_~k~0#1 <= main_~x~0#1); 2085#L43 assume !(main_~k~0#1 <= main_~n~0#1);assume { :begin_inline_binomialCoefficient } true;binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1 := main_~k~0#1, main_~n~0#1;havoc binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;binomialCoefficient_~n#1 := binomialCoefficient_#in~n#1;binomialCoefficient_~k#1 := binomialCoefficient_#in~k#1; 2019#L30-5 call binomialCoefficient_#t~ret1#1 := fact(binomialCoefficient_~n#1);< 2020#$Ultimate##0 ~n := #in~n; 2196#L25 assume !(~n <= 0); 2053#L26 call #t~ret0 := fact(~n - 1);< 2054#$Ultimate##0 ~n := #in~n; 2137#L25 assume ~n <= 0;#res := 1; 2132#factFINAL assume true; 2127#factEXIT >#70#return; 2128#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 2046#factFINAL assume true; 2023#factEXIT >#78#return; 2032#L30-6 call binomialCoefficient_#t~ret2#1 := fact(binomialCoefficient_~k#1);< 2042#$Ultimate##0 ~n := #in~n; 2092#L25 assume ~n <= 0;#res := 1; 2131#factFINAL assume true; 2123#factEXIT >#80#return; 2029#L30-7 call binomialCoefficient_#t~ret3#1 := fact(binomialCoefficient_~n#1 - binomialCoefficient_~k#1);< 2100#$Ultimate##0 ~n := #in~n; 2087#L25 assume !(~n <= 0); 2053#L26 call #t~ret0 := fact(~n - 1);< 2054#$Ultimate##0 ~n := #in~n; 2137#L25 assume !(~n <= 0); 2075#L26 call #t~ret0 := fact(~n - 1);< 2054#$Ultimate##0 ~n := #in~n; 2137#L25 assume !(~n <= 0); 2075#L26 call #t~ret0 := fact(~n - 1);< 2054#$Ultimate##0 ~n := #in~n; 2137#L25 assume ~n <= 0;#res := 1; 2132#factFINAL assume true; 2127#factEXIT >#70#return; 2129#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 2142#factFINAL assume true; 2140#factEXIT >#70#return; 2074#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 2077#factFINAL assume true; 2145#factEXIT >#70#return; 2146#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 2149#factFINAL assume true; 2147#factEXIT >#82#return; 2033#L30-8 binomialCoefficient_#res#1 := (if binomialCoefficient_#t~ret1#1 < 0 && 0 != binomialCoefficient_#t~ret1#1 % (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) then (if binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1 < 0 then binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) - 1 else 1 + binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1)) else binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1));havoc binomialCoefficient_#t~ret1#1;havoc binomialCoefficient_#t~ret2#1;havoc binomialCoefficient_#t~ret3#1; 2050#binomialCoefficient_returnLabel#2 main_#t~ret10#1 := binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;havoc binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1;assume { :end_inline_binomialCoefficient } true;havoc main_#t~ret10#1; 2066#L42-2 main_#t~post8#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post8#1;havoc main_#t~post8#1; 2105#L42-3 assume !(main_~k~0#1 <= main_~x~0#1); 2103#L42-4 havoc main_~k~0#1; 2063#L41-2 main_#t~post7#1 := main_~n~0#1;main_~n~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1; 2056#L41-3 assume !!(main_~n~0#1 <= main_~x~0#1);main_~k~0#1 := 0; 2057#L42-3 [2023-11-12 02:10:57,242 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:10:57,242 INFO L85 PathProgramCache]: Analyzing trace with hash 36330292, now seen corresponding path program 3 times [2023-11-12 02:10:57,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:10:57,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012926966] [2023-11-12 02:10:57,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:10:57,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:10:57,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:10:57,251 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:10:57,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:10:57,259 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:10:57,259 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:10:57,259 INFO L85 PathProgramCache]: Analyzing trace with hash -1102369410, now seen corresponding path program 2 times [2023-11-12 02:10:57,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:10:57,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177173858] [2023-11-12 02:10:57,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:10:57,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:10:57,276 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:10:57,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [427004188] [2023-11-12 02:10:57,277 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-12 02:10:57,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:10:57,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:10:57,281 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:10:57,305 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2023-11-12 02:10:57,354 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-12 02:10:57,354 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2023-11-12 02:10:57,354 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:10:57,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:10:57,389 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:10:57,389 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:10:57,389 INFO L85 PathProgramCache]: Analyzing trace with hash -694339919, now seen corresponding path program 1 times [2023-11-12 02:10:57,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:10:57,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099464463] [2023-11-12 02:10:57,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:10:57,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:10:57,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:10:57,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:10:57,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099464463] [2023-11-12 02:10:57,406 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-12 02:10:57,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [335682391] [2023-11-12 02:10:57,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:10:57,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:10:57,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:10:57,419 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:10:57,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2023-11-12 02:10:57,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:10:57,479 INFO L262 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 02:10:57,481 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:10:57,510 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2023-11-12 02:10:57,510 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:10:57,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [335682391] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:10:57,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:10:57,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:10:57,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561375913] [2023-11-12 02:10:57,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:10:58,059 INFO L210 LassoAnalysis]: Preferences: [2023-11-12 02:10:58,059 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-12 02:10:58,059 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-12 02:10:58,059 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-12 02:10:58,060 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-12 02:10:58,060 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:10:58,060 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-12 02:10:58,060 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-12 02:10:58,060 INFO L133 ssoRankerPreferences]: Filename of dumped script: Binomial.c_Iteration6_Loop [2023-11-12 02:10:58,060 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-12 02:10:58,060 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-12 02:10:58,062 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:10:58,064 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:10:58,067 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:10:58,069 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:10:58,072 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:10:58,077 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:10:58,082 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:10:58,084 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:10:58,086 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:10:58,089 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:10:58,091 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:10:58,094 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:10:58,097 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:10:58,099 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:10:58,175 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-12 02:10:58,175 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-12 02:10:58,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:10:58,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:10:58,178 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:10:58,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2023-11-12 02:10:58,183 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-12 02:10:58,183 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:10:58,194 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-12 02:10:58,194 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post8#1=0} Honda state: {ULTIMATE.start_main_#t~post8#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-12 02:10:58,197 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2023-11-12 02:10:58,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:10:58,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:10:58,198 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:10:58,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2023-11-12 02:10:58,200 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-12 02:10:58,200 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:10:58,235 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-12 02:10:58,236 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_binomialCoefficient_~k#1=0} Honda state: {ULTIMATE.start_binomialCoefficient_~k#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-12 02:10:58,246 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2023-11-12 02:10:58,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:10:58,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:10:58,249 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:10:58,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2023-11-12 02:10:58,252 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-12 02:10:58,252 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:10:58,274 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-12 02:10:58,274 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_binomialCoefficient_~n#1=0} Honda state: {ULTIMATE.start_binomialCoefficient_~n#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-12 02:10:58,282 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2023-11-12 02:10:58,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:10:58,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:10:58,284 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:10:58,296 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-12 02:10:58,296 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:10:58,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2023-11-12 02:10:58,320 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-12 02:10:58,320 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_binomialCoefficient_#t~ret3#1=0} Honda state: {ULTIMATE.start_binomialCoefficient_#t~ret3#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-12 02:10:58,329 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2023-11-12 02:10:58,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:10:58,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:10:58,330 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:10:58,334 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-12 02:10:58,334 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:10:58,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2023-11-12 02:10:58,358 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2023-11-12 02:10:58,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:10:58,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:10:58,359 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:10:58,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2023-11-12 02:10:58,362 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-12 02:10:58,363 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:10:58,384 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-12 02:10:58,389 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2023-11-12 02:10:58,389 INFO L210 LassoAnalysis]: Preferences: [2023-11-12 02:10:58,389 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-12 02:10:58,389 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-12 02:10:58,389 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-12 02:10:58,389 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-12 02:10:58,389 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:10:58,389 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-12 02:10:58,389 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-12 02:10:58,390 INFO L133 ssoRankerPreferences]: Filename of dumped script: Binomial.c_Iteration6_Loop [2023-11-12 02:10:58,390 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-12 02:10:58,390 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-12 02:10:58,391 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:10:58,394 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:10:58,396 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:10:58,399 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:10:58,401 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:10:58,403 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:10:58,408 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:10:58,413 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:10:58,418 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:10:58,421 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:10:58,423 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:10:58,425 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:10:58,427 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:10:58,429 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:10:58,503 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-12 02:10:58,504 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-12 02:10:58,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:10:58,504 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:10:58,505 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:10:58,516 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 [2023-11-12 02:10:58,529 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:10:58,529 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-12 02:10:58,529 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:10:58,529 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:10:58,529 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-12 02:10:58,530 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-12 02:10:58,530 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-12 02:10:58,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2023-11-12 02:10:58,543 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-12 02:10:58,547 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2023-11-12 02:10:58,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:10:58,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:10:58,549 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:10:58,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2023-11-12 02:10:58,554 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-12 02:10:58,564 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:10:58,564 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-12 02:10:58,564 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:10:58,564 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:10:58,564 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-12 02:10:58,565 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-12 02:10:58,565 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-12 02:10:58,566 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-12 02:10:58,572 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2023-11-12 02:10:58,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:10:58,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:10:58,573 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:10:58,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2023-11-12 02:10:58,576 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 [2023-11-12 02:10:58,586 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:10:58,586 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-12 02:10:58,586 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:10:58,586 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:10:58,586 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-12 02:10:58,586 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-12 02:10:58,587 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-12 02:10:58,590 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-12 02:10:58,592 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Ended with exit code 0 [2023-11-12 02:10:58,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:10:58,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:10:58,594 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:10:58,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2023-11-12 02:10:58,597 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 [2023-11-12 02:10:58,607 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:10:58,607 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-12 02:10:58,608 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:10:58,608 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:10:58,608 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-12 02:10:58,608 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-12 02:10:58,608 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-12 02:10:58,610 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-12 02:10:58,612 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2023-11-12 02:10:58,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:10:58,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:10:58,613 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:10:58,616 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2023-11-12 02:10:58,617 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 [2023-11-12 02:10:58,629 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:10:58,629 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-12 02:10:58,630 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:10:58,630 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:10:58,630 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-12 02:10:58,630 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-12 02:10:58,631 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-12 02:10:58,643 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-12 02:10:58,653 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0 [2023-11-12 02:10:58,653 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:10:58,653 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:10:58,654 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:10:58,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2023-11-12 02:10:58,659 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 [2023-11-12 02:10:58,669 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:10:58,669 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-12 02:10:58,669 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:10:58,669 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:10:58,669 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-12 02:10:58,670 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-12 02:10:58,670 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-12 02:10:58,671 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-12 02:10:58,674 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Ended with exit code 0 [2023-11-12 02:10:58,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:10:58,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:10:58,675 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:10:58,676 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2023-11-12 02:10:58,678 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 [2023-11-12 02:10:58,687 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:10:58,688 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-12 02:10:58,688 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:10:58,688 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:10:58,688 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-12 02:10:58,689 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-12 02:10:58,689 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-12 02:10:58,691 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-12 02:10:58,694 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-12 02:10:58,694 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-12 02:10:58,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:10:58,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:10:58,695 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:10:58,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2023-11-12 02:10:58,698 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-12 02:10:58,698 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-12 02:10:58,698 INFO L513 LassoAnalysis]: Proved termination. [2023-11-12 02:10:58,698 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~k~0#1) = 1*ULTIMATE.start_main_~k~0#1 Supporting invariants [] [2023-11-12 02:10:58,701 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2023-11-12 02:10:58,702 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-12 02:10:58,713 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:10:58,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:10:58,718 INFO L262 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-12 02:10:58,718 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:10:58,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:10:58,792 INFO L262 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-12 02:10:58,795 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:10:58,957 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 2 proven. 23 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2023-11-12 02:10:58,958 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 6 loop predicates [2023-11-12 02:10:58,958 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 178 states and 313 transitions. cyclomatic complexity: 140 Second operand has 8 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 8 states have internal predecessors, (23), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2023-11-12 02:10:59,437 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 178 states and 313 transitions. cyclomatic complexity: 140. Second operand has 8 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 8 states have internal predecessors, (23), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) Result 995 states and 1573 transitions. Complement of second has 49 states. [2023-11-12 02:10:59,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 13 states 1 stem states 11 non-accepting loop states 1 accepting loop states [2023-11-12 02:10:59,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 8 states have internal predecessors, (23), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2023-11-12 02:10:59,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 83 transitions. [2023-11-12 02:10:59,443 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states and 83 transitions. Stem has 5 letters. Loop has 48 letters. [2023-11-12 02:10:59,447 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-12 02:10:59,447 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states and 83 transitions. Stem has 53 letters. Loop has 48 letters. [2023-11-12 02:10:59,449 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-12 02:10:59,449 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states and 83 transitions. Stem has 5 letters. Loop has 96 letters. [2023-11-12 02:10:59,451 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-12 02:10:59,452 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 995 states and 1573 transitions. [2023-11-12 02:10:59,471 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 81 [2023-11-12 02:10:59,486 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 995 states to 699 states and 1106 transitions. [2023-11-12 02:10:59,487 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 289 [2023-11-12 02:10:59,487 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 290 [2023-11-12 02:10:59,488 INFO L73 IsDeterministic]: Start isDeterministic. Operand 699 states and 1106 transitions. [2023-11-12 02:10:59,488 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-12 02:10:59,488 INFO L218 hiAutomatonCegarLoop]: Abstraction has 699 states and 1106 transitions. [2023-11-12 02:10:59,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states and 1106 transitions. [2023-11-12 02:10:59,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 612. [2023-11-12 02:10:59,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 612 states, 370 states have (on average 1.127027027027027) internal successors, (417), 374 states have internal predecessors, (417), 145 states have call successors, (145), 58 states have call predecessors, (145), 97 states have return successors, (420), 179 states have call predecessors, (420), 145 states have call successors, (420) [2023-11-12 02:10:59,567 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2023-11-12 02:10:59,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 612 states to 612 states and 982 transitions. [2023-11-12 02:10:59,576 INFO L240 hiAutomatonCegarLoop]: Abstraction has 612 states and 982 transitions. [2023-11-12 02:10:59,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:10:59,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:10:59,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:10:59,577 INFO L87 Difference]: Start difference. First operand 612 states and 982 transitions. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-12 02:10:59,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:10:59,637 INFO L93 Difference]: Finished difference Result 310 states and 549 transitions. [2023-11-12 02:10:59,638 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 310 states and 549 transitions. [2023-11-12 02:10:59,645 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 53 [2023-11-12 02:10:59,652 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 310 states to 308 states and 547 transitions. [2023-11-12 02:10:59,652 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 155 [2023-11-12 02:10:59,653 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 155 [2023-11-12 02:10:59,653 INFO L73 IsDeterministic]: Start isDeterministic. Operand 308 states and 547 transitions. [2023-11-12 02:10:59,653 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-12 02:10:59,653 INFO L218 hiAutomatonCegarLoop]: Abstraction has 308 states and 547 transitions. [2023-11-12 02:10:59,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states and 547 transitions. [2023-11-12 02:10:59,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 280. [2023-11-12 02:10:59,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 170 states have (on average 1.1235294117647059) internal successors, (191), 171 states have internal predecessors, (191), 68 states have call successors, (68), 24 states have call predecessors, (68), 42 states have return successors, (208), 84 states have call predecessors, (208), 68 states have call successors, (208) [2023-11-12 02:10:59,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 467 transitions. [2023-11-12 02:10:59,677 INFO L240 hiAutomatonCegarLoop]: Abstraction has 280 states and 467 transitions. [2023-11-12 02:10:59,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:10:59,678 INFO L428 stractBuchiCegarLoop]: Abstraction has 280 states and 467 transitions. [2023-11-12 02:10:59,678 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2023-11-12 02:10:59,678 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 280 states and 467 transitions. [2023-11-12 02:10:59,682 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 45 [2023-11-12 02:10:59,682 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-12 02:10:59,682 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-12 02:10:59,683 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:10:59,683 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-12 02:10:59,683 INFO L748 eck$LassoCheckResult]: Stem: 4595#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 4548#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~ret9#1, main_#t~ret10#1, main_#t~post8#1, main_~k~0#1, main_#t~post7#1, main_~n~0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_#t~nondet4#1;main_~x~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 4549#L35 assume !(main_~x~0#1 < 0);havoc main_#t~nondet5#1;main_~y~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 4567#L38 assume !(main_~y~0#1 < 0);havoc main_#t~nondet6#1;main_~z~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;main_~n~0#1 := 0; 4596#L41-3 assume !!(main_~n~0#1 <= main_~x~0#1);main_~k~0#1 := 0; 4640#L42-3 assume !!(main_~k~0#1 <= main_~x~0#1); 4638#L43 assume main_~k~0#1 <= main_~n~0#1;assume { :begin_inline_binomialCoefficient } true;binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1 := main_~n~0#1, main_~k~0#1;havoc binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;binomialCoefficient_~n#1 := binomialCoefficient_#in~n#1;binomialCoefficient_~k#1 := binomialCoefficient_#in~k#1; 4538#L30 call binomialCoefficient_#t~ret1#1 := fact(binomialCoefficient_~n#1);< 4539#$Ultimate##0 ~n := #in~n; 4703#L25 assume !(~n <= 0); 4521#L26 call #t~ret0 := fact(~n - 1);< 4555#$Ultimate##0 [2023-11-12 02:10:59,683 INFO L750 eck$LassoCheckResult]: Loop: 4555#$Ultimate##0 ~n := #in~n; 4706#L25 assume !(~n <= 0); 4522#L26 call #t~ret0 := fact(~n - 1);< 4555#$Ultimate##0 [2023-11-12 02:10:59,684 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:10:59,684 INFO L85 PathProgramCache]: Analyzing trace with hash 271742545, now seen corresponding path program 1 times [2023-11-12 02:10:59,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:10:59,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635583781] [2023-11-12 02:10:59,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:10:59,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:10:59,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:10:59,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:10:59,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:10:59,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635583781] [2023-11-12 02:10:59,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635583781] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:10:59,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:10:59,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-12 02:10:59,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031734291] [2023-11-12 02:10:59,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:10:59,773 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-12 02:10:59,773 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:10:59,773 INFO L85 PathProgramCache]: Analyzing trace with hash 29984, now seen corresponding path program 1 times [2023-11-12 02:10:59,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:10:59,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814889118] [2023-11-12 02:10:59,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:10:59,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:10:59,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:10:59,778 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:10:59,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:10:59,781 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:10:59,812 INFO L210 LassoAnalysis]: Preferences: [2023-11-12 02:10:59,812 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-12 02:10:59,812 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-12 02:10:59,812 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-12 02:10:59,813 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-12 02:10:59,813 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:10:59,813 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-12 02:10:59,813 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-12 02:10:59,813 INFO L133 ssoRankerPreferences]: Filename of dumped script: Binomial.c_Iteration7_Loop [2023-11-12 02:10:59,813 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-12 02:10:59,813 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-12 02:10:59,814 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:10:59,817 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:10:59,819 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:10:59,825 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:10:59,854 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-12 02:10:59,854 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-12 02:10:59,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:10:59,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:10:59,856 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:10:59,864 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-12 02:10:59,865 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:10:59,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2023-11-12 02:10:59,894 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-12 02:10:59,894 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fact_#t~ret0=0} Honda state: {fact_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-12 02:10:59,898 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Forceful destruction successful, exit code 0 [2023-11-12 02:10:59,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:10:59,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:10:59,900 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:10:59,908 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-12 02:10:59,908 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:10:59,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2023-11-12 02:10:59,930 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-12 02:10:59,930 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fact_~n=0} Honda state: {fact_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-12 02:10:59,934 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0 [2023-11-12 02:10:59,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:10:59,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:10:59,936 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:10:59,940 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-12 02:10:59,940 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:10:59,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2023-11-12 02:10:59,975 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Forceful destruction successful, exit code 0 [2023-11-12 02:10:59,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:10:59,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:10:59,977 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:10:59,981 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-12 02:10:59,981 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:10:59,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2023-11-12 02:11:00,080 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-12 02:11:00,084 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Forceful destruction successful, exit code 0 [2023-11-12 02:11:00,084 INFO L210 LassoAnalysis]: Preferences: [2023-11-12 02:11:00,085 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-12 02:11:00,085 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-12 02:11:00,085 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-12 02:11:00,085 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-12 02:11:00,085 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:11:00,085 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-12 02:11:00,085 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-12 02:11:00,085 INFO L133 ssoRankerPreferences]: Filename of dumped script: Binomial.c_Iteration7_Loop [2023-11-12 02:11:00,085 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-12 02:11:00,085 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-12 02:11:00,086 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:11:00,090 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:11:00,092 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:11:00,098 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:11:00,123 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-12 02:11:00,124 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-12 02:11:00,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:11:00,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:00,125 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:11:00,133 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 [2023-11-12 02:11:00,146 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:11:00,146 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-12 02:11:00,146 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:11:00,147 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:11:00,147 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-12 02:11:00,147 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-12 02:11:00,148 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-12 02:11:00,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2023-11-12 02:11:00,171 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-12 02:11:00,175 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Forceful destruction successful, exit code 0 [2023-11-12 02:11:00,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:11:00,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:00,176 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:11:00,180 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 [2023-11-12 02:11:00,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2023-11-12 02:11:00,192 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:11:00,192 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-12 02:11:00,193 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:11:00,193 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:11:00,193 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-12 02:11:00,193 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-12 02:11:00,193 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-12 02:11:00,207 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-12 02:11:00,210 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Forceful destruction successful, exit code 0 [2023-11-12 02:11:00,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:11:00,211 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:00,212 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:11:00,216 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 [2023-11-12 02:11:00,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2023-11-12 02:11:00,228 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:11:00,228 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-12 02:11:00,228 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:11:00,228 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:11:00,228 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-12 02:11:00,229 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-12 02:11:00,229 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-12 02:11:00,243 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-12 02:11:00,253 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-12 02:11:00,253 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-12 02:11:00,253 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:11:00,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:00,255 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:11:00,258 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-12 02:11:00,258 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-12 02:11:00,258 INFO L513 LassoAnalysis]: Proved termination. [2023-11-12 02:11:00,258 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(fact_#in~n) = 1*fact_#in~n Supporting invariants [] [2023-11-12 02:11:00,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2023-11-12 02:11:00,262 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Forceful destruction successful, exit code 0 [2023-11-12 02:11:00,263 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-12 02:11:00,277 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:11:00,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:11:00,298 INFO L262 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-12 02:11:00,298 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:11:00,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:11:00,332 INFO L262 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-12 02:11:00,333 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:11:00,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:11:00,361 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2023-11-12 02:11:00,361 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 280 states and 467 transitions. cyclomatic complexity: 194 Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:11:00,425 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 280 states and 467 transitions. cyclomatic complexity: 194. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 433 states and 726 transitions. Complement of second has 13 states. [2023-11-12 02:11:00,426 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 [2023-11-12 02:11:00,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:11:00,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 35 transitions. [2023-11-12 02:11:00,428 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 35 transitions. Stem has 11 letters. Loop has 3 letters. [2023-11-12 02:11:00,429 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-12 02:11:00,429 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 35 transitions. Stem has 14 letters. Loop has 3 letters. [2023-11-12 02:11:00,429 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-12 02:11:00,429 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 35 transitions. Stem has 11 letters. Loop has 6 letters. [2023-11-12 02:11:00,429 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-12 02:11:00,429 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 433 states and 726 transitions. [2023-11-12 02:11:00,437 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 53 [2023-11-12 02:11:00,446 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 433 states to 409 states and 702 transitions. [2023-11-12 02:11:00,447 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 190 [2023-11-12 02:11:00,447 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 194 [2023-11-12 02:11:00,448 INFO L73 IsDeterministic]: Start isDeterministic. Operand 409 states and 702 transitions. [2023-11-12 02:11:00,448 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-12 02:11:00,448 INFO L218 hiAutomatonCegarLoop]: Abstraction has 409 states and 702 transitions. [2023-11-12 02:11:00,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states and 702 transitions. [2023-11-12 02:11:00,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 401. [2023-11-12 02:11:00,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 247 states have (on average 1.165991902834008) internal successors, (288), 260 states have internal predecessors, (288), 96 states have call successors, (96), 44 states have call predecessors, (96), 58 states have return successors, (298), 96 states have call predecessors, (298), 96 states have call successors, (298) [2023-11-12 02:11:00,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 682 transitions. [2023-11-12 02:11:00,473 INFO L240 hiAutomatonCegarLoop]: Abstraction has 401 states and 682 transitions. [2023-11-12 02:11:00,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:11:00,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:11:00,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:11:00,474 INFO L87 Difference]: Start difference. First operand 401 states and 682 transitions. Second operand has 6 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:11:00,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:11:00,560 INFO L93 Difference]: Finished difference Result 433 states and 758 transitions. [2023-11-12 02:11:00,560 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 433 states and 758 transitions. [2023-11-12 02:11:00,568 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 77 [2023-11-12 02:11:00,577 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 433 states to 433 states and 758 transitions. [2023-11-12 02:11:00,578 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 208 [2023-11-12 02:11:00,578 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 208 [2023-11-12 02:11:00,578 INFO L73 IsDeterministic]: Start isDeterministic. Operand 433 states and 758 transitions. [2023-11-12 02:11:00,578 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-12 02:11:00,579 INFO L218 hiAutomatonCegarLoop]: Abstraction has 433 states and 758 transitions. [2023-11-12 02:11:00,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states and 758 transitions. [2023-11-12 02:11:00,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 423. [2023-11-12 02:11:00,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 257 states have (on average 1.1673151750972763) internal successors, (300), 270 states have internal predecessors, (300), 114 states have call successors, (114), 44 states have call predecessors, (114), 52 states have return successors, (328), 108 states have call predecessors, (328), 114 states have call successors, (328) [2023-11-12 02:11:00,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 742 transitions. [2023-11-12 02:11:00,608 INFO L240 hiAutomatonCegarLoop]: Abstraction has 423 states and 742 transitions. [2023-11-12 02:11:00,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 02:11:00,609 INFO L428 stractBuchiCegarLoop]: Abstraction has 423 states and 742 transitions. [2023-11-12 02:11:00,610 INFO L335 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2023-11-12 02:11:00,610 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 423 states and 742 transitions. [2023-11-12 02:11:00,614 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 77 [2023-11-12 02:11:00,614 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-12 02:11:00,614 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-12 02:11:00,618 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:11:00,618 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-12 02:11:00,620 INFO L748 eck$LassoCheckResult]: Stem: 6215#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 6171#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~ret9#1, main_#t~ret10#1, main_#t~post8#1, main_~k~0#1, main_#t~post7#1, main_~n~0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_#t~nondet4#1;main_~x~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 6172#L35 assume !(main_~x~0#1 < 0);havoc main_#t~nondet5#1;main_~y~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 6191#L38 assume !(main_~y~0#1 < 0);havoc main_#t~nondet6#1;main_~z~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;main_~n~0#1 := 0; 6179#L41-3 assume !!(main_~n~0#1 <= main_~x~0#1);main_~k~0#1 := 0; 6180#L42-3 assume !!(main_~k~0#1 <= main_~x~0#1); 6194#L43 assume main_~k~0#1 <= main_~n~0#1;assume { :begin_inline_binomialCoefficient } true;binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1 := main_~n~0#1, main_~k~0#1;havoc binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;binomialCoefficient_~n#1 := binomialCoefficient_#in~n#1;binomialCoefficient_~k#1 := binomialCoefficient_#in~k#1; 6195#L30 call binomialCoefficient_#t~ret1#1 := fact(binomialCoefficient_~n#1);< 6493#$Ultimate##0 ~n := #in~n; 6497#L25 assume ~n <= 0;#res := 1; 6496#factFINAL assume true; 6492#factEXIT >#72#return; 6203#L30-1 call binomialCoefficient_#t~ret2#1 := fact(binomialCoefficient_~k#1);< 6204#$Ultimate##0 ~n := #in~n; 6545#L25 assume !(~n <= 0); 6162#L26 call #t~ret0 := fact(~n - 1);< 6553#$Ultimate##0 ~n := #in~n; 6199#L25 assume ~n <= 0;#res := 1; 6200#factFINAL assume true; 6536#factEXIT >#70#return; 6535#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 6511#factFINAL assume true; 6471#factEXIT >#74#return; 6468#L30-2 call binomialCoefficient_#t~ret3#1 := fact(binomialCoefficient_~n#1 - binomialCoefficient_~k#1);< 6470#$Ultimate##0 ~n := #in~n; 6556#L25 assume !(~n <= 0); 6164#L26 call #t~ret0 := fact(~n - 1);< 6177#$Ultimate##0 [2023-11-12 02:11:00,621 INFO L750 eck$LassoCheckResult]: Loop: 6177#$Ultimate##0 ~n := #in~n; 6517#L25 assume !(~n <= 0); 6163#L26 call #t~ret0 := fact(~n - 1);< 6177#$Ultimate##0 [2023-11-12 02:11:00,621 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:11:00,621 INFO L85 PathProgramCache]: Analyzing trace with hash 1844396785, now seen corresponding path program 1 times [2023-11-12 02:11:00,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:11:00,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059873227] [2023-11-12 02:11:00,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:11:00,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:11:00,641 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:11:00,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [695843516] [2023-11-12 02:11:00,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:11:00,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:11:00,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:00,646 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:11:00,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Waiting until timeout for monitored process [2023-11-12 02:11:00,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:11:00,700 INFO L262 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-12 02:11:00,701 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:11:00,739 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-12 02:11:00,739 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:11:00,822 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-12 02:11:00,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:11:00,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059873227] [2023-11-12 02:11:00,823 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:11:00,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [695843516] [2023-11-12 02:11:00,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [695843516] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:11:00,824 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-12 02:11:00,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2023-11-12 02:11:00,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740780901] [2023-11-12 02:11:00,826 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-12 02:11:00,827 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-12 02:11:00,827 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:11:00,827 INFO L85 PathProgramCache]: Analyzing trace with hash 29984, now seen corresponding path program 2 times [2023-11-12 02:11:00,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:11:00,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232733892] [2023-11-12 02:11:00,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:11:00,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:11:00,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:11:00,832 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:11:00,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:11:00,837 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:11:00,871 INFO L210 LassoAnalysis]: Preferences: [2023-11-12 02:11:00,871 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-12 02:11:00,871 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-12 02:11:00,872 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-12 02:11:00,872 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-12 02:11:00,872 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:11:00,872 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-12 02:11:00,872 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-12 02:11:00,872 INFO L133 ssoRankerPreferences]: Filename of dumped script: Binomial.c_Iteration8_Loop [2023-11-12 02:11:00,872 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-12 02:11:00,872 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-12 02:11:00,873 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:11:00,876 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:11:00,879 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:11:00,885 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:11:00,913 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-12 02:11:00,913 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-12 02:11:00,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:11:00,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:00,917 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:11:00,919 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-12 02:11:00,919 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:11:00,933 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2023-11-12 02:11:00,949 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-12 02:11:00,949 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fact_#t~ret0=0} Honda state: {fact_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-12 02:11:00,952 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Forceful destruction successful, exit code 0 [2023-11-12 02:11:00,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:11:00,953 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:00,954 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:11:00,958 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-12 02:11:00,958 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:11:00,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2023-11-12 02:11:00,980 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-12 02:11:00,980 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fact_#res=0} Honda state: {fact_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-12 02:11:00,984 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Forceful destruction successful, exit code 0 [2023-11-12 02:11:00,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:11:00,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:00,985 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:11:00,989 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-12 02:11:00,989 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:11:00,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2023-11-12 02:11:01,031 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Forceful destruction successful, exit code 0 [2023-11-12 02:11:01,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:11:01,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:01,033 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:11:01,037 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-12 02:11:01,037 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:11:01,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2023-11-12 02:11:01,140 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-12 02:11:01,144 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Forceful destruction successful, exit code 0 [2023-11-12 02:11:01,145 INFO L210 LassoAnalysis]: Preferences: [2023-11-12 02:11:01,145 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-12 02:11:01,145 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-12 02:11:01,145 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-12 02:11:01,145 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-12 02:11:01,145 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:11:01,145 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-12 02:11:01,145 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-12 02:11:01,145 INFO L133 ssoRankerPreferences]: Filename of dumped script: Binomial.c_Iteration8_Loop [2023-11-12 02:11:01,145 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-12 02:11:01,145 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-12 02:11:01,146 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:11:01,149 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:11:01,151 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:11:01,154 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:11:01,186 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-12 02:11:01,186 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-12 02:11:01,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:11:01,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:01,188 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:11:01,193 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 [2023-11-12 02:11:01,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process [2023-11-12 02:11:01,207 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:11:01,207 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-12 02:11:01,207 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:11:01,207 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:11:01,207 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-12 02:11:01,208 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-12 02:11:01,208 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-12 02:11:01,217 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-12 02:11:01,221 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Forceful destruction successful, exit code 0 [2023-11-12 02:11:01,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:11:01,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:01,223 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:11:01,228 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 [2023-11-12 02:11:01,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Waiting until timeout for monitored process [2023-11-12 02:11:01,242 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:11:01,242 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-12 02:11:01,242 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:11:01,242 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:11:01,242 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-12 02:11:01,243 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-12 02:11:01,243 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-12 02:11:01,271 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-12 02:11:01,275 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Forceful destruction successful, exit code 0 [2023-11-12 02:11:01,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:11:01,275 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:01,277 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:11:01,280 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 [2023-11-12 02:11:01,293 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:11:01,293 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-12 02:11:01,293 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:11:01,293 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:11:01,293 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-12 02:11:01,294 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-12 02:11:01,294 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-12 02:11:01,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Waiting until timeout for monitored process [2023-11-12 02:11:01,309 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-12 02:11:01,314 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Forceful destruction successful, exit code 0 [2023-11-12 02:11:01,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:11:01,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:01,345 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Forceful destruction successful, exit code 0 [2023-11-12 02:11:01,346 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:11:01,350 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 [2023-11-12 02:11:01,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Waiting until timeout for monitored process [2023-11-12 02:11:01,363 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:11:01,363 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-12 02:11:01,364 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:11:01,364 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:11:01,364 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-12 02:11:01,366 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-12 02:11:01,366 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-12 02:11:01,383 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-12 02:11:01,386 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2023-11-12 02:11:01,386 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-12 02:11:01,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:11:01,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:01,387 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:11:01,391 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-12 02:11:01,391 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-12 02:11:01,391 INFO L513 LassoAnalysis]: Proved termination. [2023-11-12 02:11:01,392 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(fact_#in~n) = 1*fact_#in~n Supporting invariants [] [2023-11-12 02:11:01,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Waiting until timeout for monitored process [2023-11-12 02:11:01,395 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Forceful destruction successful, exit code 0 [2023-11-12 02:11:01,396 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-12 02:11:01,408 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:11:01,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:11:01,453 INFO L262 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-12 02:11:01,458 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:11:01,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:11:01,667 INFO L262 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-12 02:11:01,669 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:11:01,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:11:01,693 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2023-11-12 02:11:01,693 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 423 states and 742 transitions. cyclomatic complexity: 336 Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-12 02:11:01,807 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 423 states and 742 transitions. cyclomatic complexity: 336. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Result 471 states and 800 transitions. Complement of second has 13 states. [2023-11-12 02:11:01,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-12 02:11:01,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-12 02:11:01,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 35 transitions. [2023-11-12 02:11:01,809 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 35 transitions. Stem has 27 letters. Loop has 3 letters. [2023-11-12 02:11:01,809 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-12 02:11:01,809 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-12 02:11:01,821 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:11:01,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:11:01,863 INFO L262 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-12 02:11:01,864 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:11:02,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:11:02,043 INFO L262 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-12 02:11:02,045 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:11:02,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:11:02,070 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 3 loop predicates [2023-11-12 02:11:02,070 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 423 states and 742 transitions. cyclomatic complexity: 336 Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-12 02:11:02,179 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 423 states and 742 transitions. cyclomatic complexity: 336. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Result 471 states and 800 transitions. Complement of second has 13 states. [2023-11-12 02:11:02,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-12 02:11:02,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-12 02:11:02,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 35 transitions. [2023-11-12 02:11:02,184 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 35 transitions. Stem has 27 letters. Loop has 3 letters. [2023-11-12 02:11:02,184 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-12 02:11:02,184 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-12 02:11:02,197 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:11:02,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:11:02,238 INFO L262 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-12 02:11:02,239 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:11:02,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:11:02,420 INFO L262 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-12 02:11:02,421 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:11:02,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:11:02,446 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2023-11-12 02:11:02,446 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 423 states and 742 transitions. cyclomatic complexity: 336 Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-12 02:11:02,566 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 423 states and 742 transitions. cyclomatic complexity: 336. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Result 547 states and 886 transitions. Complement of second has 16 states. [2023-11-12 02:11:02,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-12 02:11:02,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-12 02:11:02,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 41 transitions. [2023-11-12 02:11:02,568 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 41 transitions. Stem has 27 letters. Loop has 3 letters. [2023-11-12 02:11:02,569 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-12 02:11:02,569 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 41 transitions. Stem has 30 letters. Loop has 3 letters. [2023-11-12 02:11:02,569 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-12 02:11:02,569 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 41 transitions. Stem has 27 letters. Loop has 6 letters. [2023-11-12 02:11:02,569 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-12 02:11:02,570 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 547 states and 886 transitions. [2023-11-12 02:11:02,579 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 71 [2023-11-12 02:11:02,588 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 547 states to 459 states and 798 transitions. [2023-11-12 02:11:02,588 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 201 [2023-11-12 02:11:02,588 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 209 [2023-11-12 02:11:02,589 INFO L73 IsDeterministic]: Start isDeterministic. Operand 459 states and 798 transitions. [2023-11-12 02:11:02,589 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-12 02:11:02,589 INFO L218 hiAutomatonCegarLoop]: Abstraction has 459 states and 798 transitions. [2023-11-12 02:11:02,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states and 798 transitions. [2023-11-12 02:11:02,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 389. [2023-11-12 02:11:02,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 241 states have (on average 1.161825726141079) internal successors, (280), 246 states have internal predecessors, (280), 100 states have call successors, (100), 38 states have call predecessors, (100), 48 states have return successors, (290), 104 states have call predecessors, (290), 100 states have call successors, (290) [2023-11-12 02:11:02,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 670 transitions. [2023-11-12 02:11:02,618 INFO L240 hiAutomatonCegarLoop]: Abstraction has 389 states and 670 transitions. [2023-11-12 02:11:02,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:11:02,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-12 02:11:02,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:11:02,619 INFO L87 Difference]: Start difference. First operand 389 states and 670 transitions. Second operand has 7 states, 6 states have (on average 3.0) internal successors, (18), 7 states have internal predecessors, (18), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-12 02:11:02,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:11:02,764 INFO L93 Difference]: Finished difference Result 419 states and 728 transitions. [2023-11-12 02:11:02,764 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 419 states and 728 transitions. [2023-11-12 02:11:02,772 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 78 [2023-11-12 02:11:02,796 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 419 states to 419 states and 728 transitions. [2023-11-12 02:11:02,796 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 203 [2023-11-12 02:11:02,796 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 203 [2023-11-12 02:11:02,797 INFO L73 IsDeterministic]: Start isDeterministic. Operand 419 states and 728 transitions. [2023-11-12 02:11:02,798 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Forceful destruction successful, exit code 0 [2023-11-12 02:11:02,799 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-12 02:11:02,799 INFO L218 hiAutomatonCegarLoop]: Abstraction has 419 states and 728 transitions. [2023-11-12 02:11:02,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states and 728 transitions. [2023-11-12 02:11:02,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 375. [2023-11-12 02:11:02,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 227 states have (on average 1.1629955947136563) internal successors, (264), 236 states have internal predecessors, (264), 104 states have call successors, (104), 34 states have call predecessors, (104), 44 states have return successors, (290), 104 states have call predecessors, (290), 104 states have call successors, (290) [2023-11-12 02:11:02,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 658 transitions. [2023-11-12 02:11:02,824 INFO L240 hiAutomatonCegarLoop]: Abstraction has 375 states and 658 transitions. [2023-11-12 02:11:02,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:11:02,825 INFO L428 stractBuchiCegarLoop]: Abstraction has 375 states and 658 transitions. [2023-11-12 02:11:02,825 INFO L335 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2023-11-12 02:11:02,826 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 375 states and 658 transitions. [2023-11-12 02:11:02,829 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 73 [2023-11-12 02:11:02,829 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-12 02:11:02,829 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-12 02:11:02,830 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:11:02,830 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:11:02,831 INFO L748 eck$LassoCheckResult]: Stem: 9468#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 9418#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~ret9#1, main_#t~ret10#1, main_#t~post8#1, main_~k~0#1, main_#t~post7#1, main_~n~0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_#t~nondet4#1;main_~x~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 9419#L35 assume !(main_~x~0#1 < 0);havoc main_#t~nondet5#1;main_~y~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 9442#L38 assume !(main_~y~0#1 < 0);havoc main_#t~nondet6#1;main_~z~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;main_~n~0#1 := 0; 9430#L41-3 assume !!(main_~n~0#1 <= main_~x~0#1);main_~k~0#1 := 0; 9431#L42-3 assume !!(main_~k~0#1 <= main_~x~0#1); 9561#L43 assume main_~k~0#1 <= main_~n~0#1;assume { :begin_inline_binomialCoefficient } true;binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1 := main_~n~0#1, main_~k~0#1;havoc binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;binomialCoefficient_~n#1 := binomialCoefficient_#in~n#1;binomialCoefficient_~k#1 := binomialCoefficient_#in~k#1; 9556#L30 call binomialCoefficient_#t~ret1#1 := fact(binomialCoefficient_~n#1);< 9557#$Ultimate##0 ~n := #in~n; 9566#L25 assume ~n <= 0;#res := 1; 9560#factFINAL assume true; 9555#factEXIT >#72#return; 9425#L30-1 call binomialCoefficient_#t~ret2#1 := fact(binomialCoefficient_~k#1);< 9551#$Ultimate##0 ~n := #in~n; 9548#L25 assume ~n <= 0;#res := 1; 9549#factFINAL assume true; 9558#factEXIT >#74#return; 9426#L30-2 call binomialCoefficient_#t~ret3#1 := fact(binomialCoefficient_~n#1 - binomialCoefficient_~k#1);< 9551#$Ultimate##0 ~n := #in~n; 9548#L25 assume ~n <= 0;#res := 1; 9549#factFINAL assume true; 9558#factEXIT >#76#return; 9546#L30-3 [2023-11-12 02:11:02,831 INFO L750 eck$LassoCheckResult]: Loop: 9546#L30-3 binomialCoefficient_#res#1 := (if binomialCoefficient_#t~ret1#1 < 0 && 0 != binomialCoefficient_#t~ret1#1 % (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) then (if binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1 < 0 then binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) - 1 else 1 + binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1)) else binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1));havoc binomialCoefficient_#t~ret1#1;havoc binomialCoefficient_#t~ret2#1;havoc binomialCoefficient_#t~ret3#1; 9675#binomialCoefficient_returnLabel#1 main_#t~ret9#1 := binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;havoc binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1;assume { :end_inline_binomialCoefficient } true;havoc main_#t~ret9#1; 9674#L42-2 main_#t~post8#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post8#1;havoc main_#t~post8#1; 9673#L42-3 assume !!(main_~k~0#1 <= main_~x~0#1); 9671#L43 assume main_~k~0#1 <= main_~n~0#1;assume { :begin_inline_binomialCoefficient } true;binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1 := main_~n~0#1, main_~k~0#1;havoc binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;binomialCoefficient_~n#1 := binomialCoefficient_#in~n#1;binomialCoefficient_~k#1 := binomialCoefficient_#in~k#1; 9668#L30 call binomialCoefficient_#t~ret1#1 := fact(binomialCoefficient_~n#1);< 9669#$Ultimate##0 ~n := #in~n; 9672#L25 assume ~n <= 0;#res := 1; 9670#factFINAL assume true; 9667#factEXIT >#72#return; 9394#L30-1 call binomialCoefficient_#t~ret2#1 := fact(binomialCoefficient_~k#1);< 9573#$Ultimate##0 ~n := #in~n; 9576#L25 assume ~n <= 0;#res := 1; 9572#factFINAL assume true; 9543#factEXIT >#74#return; 9407#L30-2 call binomialCoefficient_#t~ret3#1 := fact(binomialCoefficient_~n#1 - binomialCoefficient_~k#1);< 9573#$Ultimate##0 ~n := #in~n; 9576#L25 assume ~n <= 0;#res := 1; 9572#factFINAL assume true; 9543#factEXIT >#76#return; 9546#L30-3 [2023-11-12 02:11:02,832 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:11:02,832 INFO L85 PathProgramCache]: Analyzing trace with hash 2014200888, now seen corresponding path program 1 times [2023-11-12 02:11:02,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:11:02,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099353152] [2023-11-12 02:11:02,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:11:02,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:11:02,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:11:02,853 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:11:02,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:11:02,878 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:11:02,880 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:11:02,880 INFO L85 PathProgramCache]: Analyzing trace with hash -1358427144, now seen corresponding path program 1 times [2023-11-12 02:11:02,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:11:02,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098400253] [2023-11-12 02:11:02,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:11:02,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:11:02,885 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:11:02,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1664845006] [2023-11-12 02:11:02,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:11:02,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:11:02,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:02,887 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:11:02,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Waiting until timeout for monitored process [2023-11-12 02:11:02,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:11:02,942 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:11:02,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:11:02,958 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:11:02,959 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:11:02,959 INFO L85 PathProgramCache]: Analyzing trace with hash -366408017, now seen corresponding path program 1 times [2023-11-12 02:11:02,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:11:02,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592809558] [2023-11-12 02:11:02,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:11:02,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:11:02,966 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:11:02,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1854048197] [2023-11-12 02:11:02,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:11:02,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:11:02,967 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:02,968 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:11:02,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Waiting until timeout for monitored process [2023-11-12 02:11:03,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:11:03,031 INFO L262 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-12 02:11:03,033 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:11:03,088 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-12 02:11:03,088 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:11:03,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:11:03,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592809558] [2023-11-12 02:11:03,089 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:11:03,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1854048197] [2023-11-12 02:11:03,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1854048197] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:11:03,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:11:03,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:11:03,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340644209] [2023-11-12 02:11:03,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:11:03,416 INFO L210 LassoAnalysis]: Preferences: [2023-11-12 02:11:03,417 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-12 02:11:03,417 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-12 02:11:03,417 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-12 02:11:03,417 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-12 02:11:03,417 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:11:03,417 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-12 02:11:03,417 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-12 02:11:03,417 INFO L133 ssoRankerPreferences]: Filename of dumped script: Binomial.c_Iteration9_Loop [2023-11-12 02:11:03,418 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-12 02:11:03,418 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-12 02:11:03,419 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:11:03,422 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:11:03,425 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:11:03,427 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:11:03,429 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:11:03,432 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:11:03,434 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:11:03,552 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-12 02:11:03,552 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-12 02:11:03,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:11:03,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:03,559 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:11:03,565 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-12 02:11:03,565 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:11:03,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Waiting until timeout for monitored process [2023-11-12 02:11:03,596 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-12 02:11:03,596 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_binomialCoefficient_#t~ret3#1=1} Honda state: {ULTIMATE.start_binomialCoefficient_#t~ret3#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-12 02:11:03,599 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Forceful destruction successful, exit code 0 [2023-11-12 02:11:03,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:11:03,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:03,601 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:11:03,608 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-12 02:11:03,608 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:11:03,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Waiting until timeout for monitored process [2023-11-12 02:11:03,629 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-12 02:11:03,629 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post8#1=0} Honda state: {ULTIMATE.start_main_#t~post8#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-12 02:11:03,633 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Forceful destruction successful, exit code 0 [2023-11-12 02:11:03,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:11:03,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:03,634 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:11:03,640 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-12 02:11:03,640 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:11:03,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Waiting until timeout for monitored process [2023-11-12 02:11:03,662 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-12 02:11:03,662 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_binomialCoefficient_#t~ret1#1=1} Honda state: {ULTIMATE.start_binomialCoefficient_#t~ret1#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-12 02:11:03,665 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Forceful destruction successful, exit code 0 [2023-11-12 02:11:03,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:11:03,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:03,667 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:11:03,670 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-12 02:11:03,671 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:11:03,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Waiting until timeout for monitored process [2023-11-12 02:11:03,700 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-12 02:11:03,700 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~ret9#1=0} Honda state: {ULTIMATE.start_main_#t~ret9#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-12 02:11:03,703 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Forceful destruction successful, exit code 0 [2023-11-12 02:11:03,704 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:11:03,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:03,705 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:11:03,709 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-12 02:11:03,709 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:11:03,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Waiting until timeout for monitored process [2023-11-12 02:11:03,748 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-12 02:11:03,748 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_binomialCoefficient_#t~ret2#1=1} Honda state: {ULTIMATE.start_binomialCoefficient_#t~ret2#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-12 02:11:03,751 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Forceful destruction successful, exit code 0 [2023-11-12 02:11:03,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:11:03,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:03,753 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:11:03,757 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-12 02:11:03,757 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:11:03,769 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Waiting until timeout for monitored process [2023-11-12 02:11:03,796 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-12 02:11:03,796 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_binomialCoefficient_#res#1=0} Honda state: {ULTIMATE.start_binomialCoefficient_#res#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-12 02:11:03,799 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Forceful destruction successful, exit code 0 [2023-11-12 02:11:03,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:11:03,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:03,801 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:11:03,805 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-12 02:11:03,805 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:11:03,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Waiting until timeout for monitored process [2023-11-12 02:11:03,851 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Forceful destruction successful, exit code 0 [2023-11-12 02:11:03,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:11:03,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:03,853 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:11:03,857 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-12 02:11:03,857 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:11:03,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Waiting until timeout for monitored process [2023-11-12 02:11:04,777 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-12 02:11:04,782 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Ended with exit code 0 [2023-11-12 02:11:04,782 INFO L210 LassoAnalysis]: Preferences: [2023-11-12 02:11:04,782 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-12 02:11:04,782 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-12 02:11:04,783 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-12 02:11:04,783 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-12 02:11:04,783 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:11:04,783 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-12 02:11:04,783 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-12 02:11:04,783 INFO L133 ssoRankerPreferences]: Filename of dumped script: Binomial.c_Iteration9_Loop [2023-11-12 02:11:04,783 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-12 02:11:04,783 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-12 02:11:04,784 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:11:04,790 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:11:04,793 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:11:04,798 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:11:04,809 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:11:04,812 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:11:04,814 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:11:04,960 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-12 02:11:04,960 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-12 02:11:04,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:11:04,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:04,964 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:11:04,969 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 [2023-11-12 02:11:04,981 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:11:04,981 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-12 02:11:04,982 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:11:04,982 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:11:04,982 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-12 02:11:04,982 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-12 02:11:04,983 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-12 02:11:04,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Waiting until timeout for monitored process [2023-11-12 02:11:04,999 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-12 02:11:05,003 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Forceful destruction successful, exit code 0 [2023-11-12 02:11:05,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:11:05,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:05,005 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:11:05,009 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 [2023-11-12 02:11:05,022 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:11:05,022 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-12 02:11:05,022 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:11:05,022 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:11:05,022 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-12 02:11:05,023 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-12 02:11:05,023 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-12 02:11:05,023 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (80)] Waiting until timeout for monitored process [2023-11-12 02:11:05,032 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-12 02:11:05,035 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (80)] Forceful destruction successful, exit code 0 [2023-11-12 02:11:05,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:11:05,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:05,037 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:11:05,040 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 [2023-11-12 02:11:05,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Waiting until timeout for monitored process [2023-11-12 02:11:05,053 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:11:05,053 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-12 02:11:05,053 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:11:05,053 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:11:05,053 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-12 02:11:05,054 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-12 02:11:05,054 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-12 02:11:05,069 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-12 02:11:05,073 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Forceful destruction successful, exit code 0 [2023-11-12 02:11:05,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:11:05,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:05,075 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:11:05,078 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 [2023-11-12 02:11:05,091 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:11:05,091 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-12 02:11:05,091 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:11:05,091 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:11:05,091 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-12 02:11:05,092 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-12 02:11:05,092 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-12 02:11:05,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Waiting until timeout for monitored process [2023-11-12 02:11:05,101 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-12 02:11:05,105 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Forceful destruction successful, exit code 0 [2023-11-12 02:11:05,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:11:05,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:05,106 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:11:05,110 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 [2023-11-12 02:11:05,122 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:11:05,122 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-12 02:11:05,122 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:11:05,122 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:11:05,122 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-12 02:11:05,123 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-12 02:11:05,123 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-12 02:11:05,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (83)] Waiting until timeout for monitored process [2023-11-12 02:11:05,136 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-12 02:11:05,139 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (83)] Forceful destruction successful, exit code 0 [2023-11-12 02:11:05,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:11:05,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:05,141 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:11:05,147 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 [2023-11-12 02:11:05,159 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:11:05,160 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-12 02:11:05,160 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:11:05,160 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:11:05,160 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-12 02:11:05,161 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-12 02:11:05,161 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-12 02:11:05,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (84)] Waiting until timeout for monitored process [2023-11-12 02:11:05,170 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-12 02:11:05,173 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (84)] Forceful destruction successful, exit code 0 [2023-11-12 02:11:05,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:11:05,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:05,175 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:11:05,179 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-12 02:11:05,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (85)] Waiting until timeout for monitored process [2023-11-12 02:11:05,191 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:11:05,191 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-12 02:11:05,192 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:11:05,192 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:11:05,192 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-12 02:11:05,194 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-12 02:11:05,194 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-12 02:11:05,198 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-12 02:11:05,204 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-11-12 02:11:05,204 INFO L444 ModelExtractionUtils]: 5 out of 9 variables were initially zero. Simplification set additionally 2 variables to zero. [2023-11-12 02:11:05,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:11:05,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:05,207 INFO L229 MonitoredProcess]: Starting monitored process 86 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:11:05,209 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-12 02:11:05,209 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-12 02:11:05,209 INFO L513 LassoAnalysis]: Proved termination. [2023-11-12 02:11:05,209 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~k~0#1) = -1*ULTIMATE.start_main_~k~0#1 Supporting invariants [] [2023-11-12 02:11:05,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (86)] Waiting until timeout for monitored process [2023-11-12 02:11:05,213 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (85)] Forceful destruction successful, exit code 0 [2023-11-12 02:11:05,214 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-12 02:11:05,227 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:11:05,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:11:05,262 INFO L262 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-12 02:11:05,263 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:11:05,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:11:05,419 INFO L262 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-12 02:11:05,420 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:11:05,466 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (86)] Forceful destruction successful, exit code 0 [2023-11-12 02:11:05,571 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-12 02:11:05,572 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 7 loop predicates [2023-11-12 02:11:05,572 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 375 states and 658 transitions. cyclomatic complexity: 296 Second operand has 10 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 3 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-12 02:11:05,833 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 375 states and 658 transitions. cyclomatic complexity: 296. Second operand has 10 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 3 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Result 793 states and 1176 transitions. Complement of second has 35 states. [2023-11-12 02:11:05,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 9 states 2 stem states 6 non-accepting loop states 1 accepting loop states [2023-11-12 02:11:05,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 3 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-12 02:11:05,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 62 transitions. [2023-11-12 02:11:05,835 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 62 transitions. Stem has 22 letters. Loop has 20 letters. [2023-11-12 02:11:05,835 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-12 02:11:05,836 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 62 transitions. Stem has 42 letters. Loop has 20 letters. [2023-11-12 02:11:05,836 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-12 02:11:05,836 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 62 transitions. Stem has 22 letters. Loop has 40 letters. [2023-11-12 02:11:05,837 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-12 02:11:05,837 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 793 states and 1176 transitions. [2023-11-12 02:11:05,849 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 59 [2023-11-12 02:11:05,862 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 793 states to 767 states and 1150 transitions. [2023-11-12 02:11:05,862 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 247 [2023-11-12 02:11:05,863 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 253 [2023-11-12 02:11:05,863 INFO L73 IsDeterministic]: Start isDeterministic. Operand 767 states and 1150 transitions. [2023-11-12 02:11:05,863 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-12 02:11:05,863 INFO L218 hiAutomatonCegarLoop]: Abstraction has 767 states and 1150 transitions. [2023-11-12 02:11:05,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 767 states and 1150 transitions. [2023-11-12 02:11:05,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 767 to 711. [2023-11-12 02:11:05,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 461 states have (on average 1.1540130151843817) internal successors, (532), 456 states have internal predecessors, (532), 144 states have call successors, (152), 88 states have call predecessors, (152), 106 states have return successors, (390), 166 states have call predecessors, (390), 144 states have call successors, (390) [2023-11-12 02:11:05,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 1074 transitions. [2023-11-12 02:11:05,896 INFO L240 hiAutomatonCegarLoop]: Abstraction has 711 states and 1074 transitions. [2023-11-12 02:11:05,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:11:05,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:11:05,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:11:05,897 INFO L87 Difference]: Start difference. First operand 711 states and 1074 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-12 02:11:05,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:11:05,946 INFO L93 Difference]: Finished difference Result 591 states and 890 transitions. [2023-11-12 02:11:05,946 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 591 states and 890 transitions. [2023-11-12 02:11:05,955 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 59 [2023-11-12 02:11:05,964 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 591 states to 591 states and 890 transitions. [2023-11-12 02:11:05,964 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 212 [2023-11-12 02:11:05,965 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 212 [2023-11-12 02:11:05,965 INFO L73 IsDeterministic]: Start isDeterministic. Operand 591 states and 890 transitions. [2023-11-12 02:11:05,965 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-12 02:11:05,965 INFO L218 hiAutomatonCegarLoop]: Abstraction has 591 states and 890 transitions. [2023-11-12 02:11:05,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states and 890 transitions. [2023-11-12 02:11:05,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 565. [2023-11-12 02:11:05,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 565 states, 365 states have (on average 1.1397260273972603) internal successors, (416), 372 states have internal predecessors, (416), 118 states have call successors, (120), 60 states have call predecessors, (120), 82 states have return successors, (326), 132 states have call predecessors, (326), 118 states have call successors, (326) [2023-11-12 02:11:05,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 862 transitions. [2023-11-12 02:11:05,991 INFO L240 hiAutomatonCegarLoop]: Abstraction has 565 states and 862 transitions. [2023-11-12 02:11:05,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:11:05,992 INFO L428 stractBuchiCegarLoop]: Abstraction has 565 states and 862 transitions. [2023-11-12 02:11:05,992 INFO L335 stractBuchiCegarLoop]: ======== Iteration 10 ============ [2023-11-12 02:11:05,992 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 565 states and 862 transitions. [2023-11-12 02:11:05,996 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 59 [2023-11-12 02:11:05,997 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-12 02:11:05,997 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-12 02:11:05,998 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [5, 5, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:11:05,998 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [6, 6, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:11:05,999 INFO L748 eck$LassoCheckResult]: Stem: 12246#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 12190#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~ret9#1, main_#t~ret10#1, main_#t~post8#1, main_~k~0#1, main_#t~post7#1, main_~n~0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_#t~nondet4#1;main_~x~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 12191#L35 assume !(main_~x~0#1 < 0);havoc main_#t~nondet5#1;main_~y~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 12214#L38 assume !(main_~y~0#1 < 0);havoc main_#t~nondet6#1;main_~z~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;main_~n~0#1 := 0; 12200#L41-3 assume !!(main_~n~0#1 <= main_~x~0#1);main_~k~0#1 := 0; 12201#L42-3 assume !!(main_~k~0#1 <= main_~x~0#1); 12420#L43 assume main_~k~0#1 <= main_~n~0#1;assume { :begin_inline_binomialCoefficient } true;binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1 := main_~n~0#1, main_~k~0#1;havoc binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;binomialCoefficient_~n#1 := binomialCoefficient_#in~n#1;binomialCoefficient_~k#1 := binomialCoefficient_#in~k#1; 12179#L30 call binomialCoefficient_#t~ret1#1 := fact(binomialCoefficient_~n#1);< 12180#$Ultimate##0 ~n := #in~n; 12523#L25 assume ~n <= 0;#res := 1; 12522#factFINAL assume true; 12520#factEXIT >#72#return; 12197#L30-1 call binomialCoefficient_#t~ret2#1 := fact(binomialCoefficient_~k#1);< 12176#$Ultimate##0 ~n := #in~n; 12539#L25 assume ~n <= 0;#res := 1; 12537#factFINAL assume true; 12536#factEXIT >#74#return; 12175#L30-2 call binomialCoefficient_#t~ret3#1 := fact(binomialCoefficient_~n#1 - binomialCoefficient_~k#1);< 12176#$Ultimate##0 ~n := #in~n; 12539#L25 assume ~n <= 0;#res := 1; 12537#factFINAL assume true; 12536#factEXIT >#76#return; 12205#L30-3 binomialCoefficient_#res#1 := (if binomialCoefficient_#t~ret1#1 < 0 && 0 != binomialCoefficient_#t~ret1#1 % (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) then (if binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1 < 0 then binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) - 1 else 1 + binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1)) else binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1));havoc binomialCoefficient_#t~ret1#1;havoc binomialCoefficient_#t~ret2#1;havoc binomialCoefficient_#t~ret3#1; 12207#binomialCoefficient_returnLabel#1 main_#t~ret9#1 := binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;havoc binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1;assume { :end_inline_binomialCoefficient } true;havoc main_#t~ret9#1; 12227#L42-2 main_#t~post8#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post8#1;havoc main_#t~post8#1; 12457#L42-3 assume !!(main_~k~0#1 <= main_~x~0#1); 12218#L43 assume !(main_~k~0#1 <= main_~n~0#1);assume { :begin_inline_binomialCoefficient } true;binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1 := main_~k~0#1, main_~n~0#1;havoc binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;binomialCoefficient_~n#1 := binomialCoefficient_#in~n#1;binomialCoefficient_~k#1 := binomialCoefficient_#in~k#1; 12219#L30-5 call binomialCoefficient_#t~ret1#1 := fact(binomialCoefficient_~n#1);< 12491#$Ultimate##0 ~n := #in~n; 12559#L25 assume !(~n <= 0); 12184#L26 call #t~ret0 := fact(~n - 1);< 12532#$Ultimate##0 ~n := #in~n; 12233#L25 assume ~n <= 0;#res := 1; 12183#factFINAL assume true; 12186#factEXIT >#70#return; 12531#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 12542#factFINAL assume true; 12471#factEXIT >#78#return; 12240#L30-6 [2023-11-12 02:11:05,999 INFO L750 eck$LassoCheckResult]: Loop: 12240#L30-6 call binomialCoefficient_#t~ret2#1 := fact(binomialCoefficient_~k#1);< 12241#$Ultimate##0 ~n := #in~n; 12557#L25 assume ~n <= 0;#res := 1; 12534#factFINAL assume true; 12475#factEXIT >#80#return; 12474#L30-7 call binomialCoefficient_#t~ret3#1 := fact(binomialCoefficient_~n#1 - binomialCoefficient_~k#1);< 12491#$Ultimate##0 ~n := #in~n; 12559#L25 assume !(~n <= 0); 12184#L26 call #t~ret0 := fact(~n - 1);< 12532#$Ultimate##0 ~n := #in~n; 12551#L25 assume !(~n <= 0); 12545#L26 call #t~ret0 := fact(~n - 1);< 12549#$Ultimate##0 ~n := #in~n; 12552#L25 assume ~n <= 0;#res := 1; 12556#factFINAL assume true; 12555#factEXIT >#70#return; 12554#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 12553#factFINAL assume true; 12550#factEXIT >#70#return; 12547#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 12543#factFINAL assume true; 12535#factEXIT >#82#return; 12417#L30-8 binomialCoefficient_#res#1 := (if binomialCoefficient_#t~ret1#1 < 0 && 0 != binomialCoefficient_#t~ret1#1 % (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) then (if binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1 < 0 then binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) - 1 else 1 + binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1)) else binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1));havoc binomialCoefficient_#t~ret1#1;havoc binomialCoefficient_#t~ret2#1;havoc binomialCoefficient_#t~ret3#1; 12215#binomialCoefficient_returnLabel#2 main_#t~ret10#1 := binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;havoc binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1;assume { :end_inline_binomialCoefficient } true;havoc main_#t~ret10#1; 12216#L42-2 main_#t~post8#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post8#1;havoc main_#t~post8#1; 12565#L42-3 assume !!(main_~k~0#1 <= main_~x~0#1); 12564#L43 assume !(main_~k~0#1 <= main_~n~0#1);assume { :begin_inline_binomialCoefficient } true;binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1 := main_~k~0#1, main_~n~0#1;havoc binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;binomialCoefficient_~n#1 := binomialCoefficient_#in~n#1;binomialCoefficient_~k#1 := binomialCoefficient_#in~k#1; 12161#L30-5 call binomialCoefficient_#t~ret1#1 := fact(binomialCoefficient_~n#1);< 12162#$Ultimate##0 ~n := #in~n; 12558#L25 assume !(~n <= 0); 12184#L26 call #t~ret0 := fact(~n - 1);< 12532#$Ultimate##0 ~n := #in~n; 12233#L25 assume ~n <= 0;#res := 1; 12183#factFINAL assume true; 12186#factEXIT >#70#return; 12531#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 12542#factFINAL assume true; 12471#factEXIT >#78#return; 12240#L30-6 [2023-11-12 02:11:05,999 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:11:06,000 INFO L85 PathProgramCache]: Analyzing trace with hash -1457582577, now seen corresponding path program 1 times [2023-11-12 02:11:06,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:11:06,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643137523] [2023-11-12 02:11:06,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:11:06,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:11:06,007 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:11:06,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1416800609] [2023-11-12 02:11:06,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:11:06,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:11:06,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:06,009 INFO L229 MonitoredProcess]: Starting monitored process 87 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:11:06,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Waiting until timeout for monitored process [2023-11-12 02:11:06,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:11:06,077 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:11:06,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:11:06,103 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:11:06,104 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:11:06,104 INFO L85 PathProgramCache]: Analyzing trace with hash 1579252156, now seen corresponding path program 1 times [2023-11-12 02:11:06,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:11:06,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642105974] [2023-11-12 02:11:06,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:11:06,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:11:06,110 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:11:06,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1535269012] [2023-11-12 02:11:06,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:11:06,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:11:06,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:06,116 INFO L229 MonitoredProcess]: Starting monitored process 88 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:11:06,131 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (88)] Waiting until timeout for monitored process [2023-11-12 02:11:06,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:11:06,178 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:11:06,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:11:06,204 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:11:06,204 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:11:06,204 INFO L85 PathProgramCache]: Analyzing trace with hash 1133743434, now seen corresponding path program 1 times [2023-11-12 02:11:06,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:11:06,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17479828] [2023-11-12 02:11:06,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:11:06,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:11:06,213 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:11:06,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [856043511] [2023-11-12 02:11:06,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:11:06,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:11:06,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:06,218 INFO L229 MonitoredProcess]: Starting monitored process 89 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:11:06,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (89)] Waiting until timeout for monitored process [2023-11-12 02:11:06,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:11:06,296 INFO L262 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-12 02:11:06,298 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:11:06,418 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 131 proven. 5 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2023-11-12 02:11:06,418 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:11:06,666 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 53 proven. 22 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2023-11-12 02:11:06,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:11:06,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17479828] [2023-11-12 02:11:06,667 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:11:06,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [856043511] [2023-11-12 02:11:06,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [856043511] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:11:06,668 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-12 02:11:06,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 14 [2023-11-12 02:11:06,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345184267] [2023-11-12 02:11:06,668 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-12 02:11:07,093 INFO L210 LassoAnalysis]: Preferences: [2023-11-12 02:11:07,093 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-12 02:11:07,093 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-12 02:11:07,094 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-12 02:11:07,094 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-12 02:11:07,094 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:11:07,094 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-12 02:11:07,094 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-12 02:11:07,094 INFO L133 ssoRankerPreferences]: Filename of dumped script: Binomial.c_Iteration10_Loop [2023-11-12 02:11:07,094 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-12 02:11:07,094 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-12 02:11:07,098 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:11:07,100 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:11:07,103 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:11:07,106 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:11:07,108 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:11:07,113 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:11:07,115 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:11:07,117 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:11:07,119 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:11:07,121 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:11:07,217 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-12 02:11:07,218 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-12 02:11:07,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:11:07,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:07,223 INFO L229 MonitoredProcess]: Starting monitored process 90 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:11:07,229 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-12 02:11:07,229 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:11:07,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (90)] Waiting until timeout for monitored process [2023-11-12 02:11:07,242 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-12 02:11:07,242 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~ret10#1=0} Honda state: {ULTIMATE.start_main_#t~ret10#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-12 02:11:07,244 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (90)] Ended with exit code 0 [2023-11-12 02:11:07,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:11:07,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:07,246 INFO L229 MonitoredProcess]: Starting monitored process 91 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:11:07,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (91)] Waiting until timeout for monitored process [2023-11-12 02:11:07,249 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-12 02:11:07,249 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:11:07,260 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-12 02:11:07,260 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_binomialCoefficient_#in~n#1=1} Honda state: {ULTIMATE.start_binomialCoefficient_#in~n#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-12 02:11:07,263 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (91)] Ended with exit code 0 [2023-11-12 02:11:07,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:11:07,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:07,264 INFO L229 MonitoredProcess]: Starting monitored process 92 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:11:07,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (92)] Waiting until timeout for monitored process [2023-11-12 02:11:07,267 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-12 02:11:07,267 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:11:07,285 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-12 02:11:07,285 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=1} Honda state: {ULTIMATE.start_main_~x~0#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-12 02:11:07,288 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (92)] Ended with exit code 0 [2023-11-12 02:11:07,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:11:07,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:07,289 INFO L229 MonitoredProcess]: Starting monitored process 93 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:11:07,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (93)] Waiting until timeout for monitored process [2023-11-12 02:11:07,296 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-12 02:11:07,296 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:11:07,307 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-12 02:11:07,308 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_binomialCoefficient_#t~ret2#1=0} Honda state: {ULTIMATE.start_binomialCoefficient_#t~ret2#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-12 02:11:07,310 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (93)] Ended with exit code 0 [2023-11-12 02:11:07,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:11:07,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:07,311 INFO L229 MonitoredProcess]: Starting monitored process 94 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:11:07,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (94)] Waiting until timeout for monitored process [2023-11-12 02:11:07,314 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-12 02:11:07,314 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:11:07,328 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (94)] Ended with exit code 0 [2023-11-12 02:11:07,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:11:07,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:07,329 INFO L229 MonitoredProcess]: Starting monitored process 95 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:11:07,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (95)] Waiting until timeout for monitored process [2023-11-12 02:11:07,331 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-12 02:11:07,332 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:11:07,346 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-12 02:11:07,348 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (95)] Ended with exit code 0 [2023-11-12 02:11:07,348 INFO L210 LassoAnalysis]: Preferences: [2023-11-12 02:11:07,349 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-12 02:11:07,349 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-12 02:11:07,349 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-12 02:11:07,349 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-12 02:11:07,349 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:11:07,349 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-12 02:11:07,349 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-12 02:11:07,349 INFO L133 ssoRankerPreferences]: Filename of dumped script: Binomial.c_Iteration10_Loop [2023-11-12 02:11:07,349 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-12 02:11:07,349 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-12 02:11:07,350 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:11:07,357 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:11:07,359 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:11:07,362 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:11:07,364 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:11:07,366 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:11:07,371 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:11:07,380 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:11:07,384 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:11:07,386 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:11:07,496 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-12 02:11:07,496 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-12 02:11:07,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:11:07,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:07,497 INFO L229 MonitoredProcess]: Starting monitored process 96 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:11:07,501 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 [2023-11-12 02:11:07,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (96)] Waiting until timeout for monitored process [2023-11-12 02:11:07,514 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:11:07,515 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-12 02:11:07,515 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:11:07,515 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:11:07,515 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-12 02:11:07,516 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-12 02:11:07,516 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-12 02:11:07,531 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-12 02:11:07,535 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (96)] Forceful destruction successful, exit code 0 [2023-11-12 02:11:07,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:11:07,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:07,536 INFO L229 MonitoredProcess]: Starting monitored process 97 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:11:07,540 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 [2023-11-12 02:11:07,552 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:11:07,552 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-12 02:11:07,552 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:11:07,552 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:11:07,553 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-12 02:11:07,553 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-12 02:11:07,553 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-12 02:11:07,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (97)] Waiting until timeout for monitored process [2023-11-12 02:11:07,565 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-12 02:11:07,569 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (97)] Forceful destruction successful, exit code 0 [2023-11-12 02:11:07,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:11:07,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:07,570 INFO L229 MonitoredProcess]: Starting monitored process 98 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:11:07,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (98)] Waiting until timeout for monitored process [2023-11-12 02:11:07,574 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 [2023-11-12 02:11:07,584 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:11:07,584 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-12 02:11:07,584 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:11:07,584 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:11:07,584 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-12 02:11:07,585 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-12 02:11:07,585 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-12 02:11:07,587 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-12 02:11:07,589 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (98)] Ended with exit code 0 [2023-11-12 02:11:07,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:11:07,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:07,590 INFO L229 MonitoredProcess]: Starting monitored process 99 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:11:07,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (99)] Waiting until timeout for monitored process [2023-11-12 02:11:07,593 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 [2023-11-12 02:11:07,602 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:11:07,602 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-12 02:11:07,603 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:11:07,603 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:11:07,603 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-12 02:11:07,603 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-12 02:11:07,603 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-12 02:11:07,605 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-12 02:11:07,607 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (99)] Ended with exit code 0 [2023-11-12 02:11:07,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:11:07,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:07,608 INFO L229 MonitoredProcess]: Starting monitored process 100 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:11:07,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (100)] Waiting until timeout for monitored process [2023-11-12 02:11:07,611 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 [2023-11-12 02:11:07,621 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:11:07,621 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-12 02:11:07,621 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:11:07,621 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:11:07,621 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-12 02:11:07,621 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-12 02:11:07,621 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-12 02:11:07,625 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-12 02:11:07,629 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (100)] Ended with exit code 0 [2023-11-12 02:11:07,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:11:07,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:07,630 INFO L229 MonitoredProcess]: Starting monitored process 101 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:11:07,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (101)] Waiting until timeout for monitored process [2023-11-12 02:11:07,632 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 [2023-11-12 02:11:07,642 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:11:07,642 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-12 02:11:07,642 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:11:07,642 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:11:07,643 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-12 02:11:07,643 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-12 02:11:07,643 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-12 02:11:07,654 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-12 02:11:07,656 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-12 02:11:07,657 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-12 02:11:07,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:11:07,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:07,659 INFO L229 MonitoredProcess]: Starting monitored process 102 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:11:07,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (102)] Waiting until timeout for monitored process [2023-11-12 02:11:07,662 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-12 02:11:07,662 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-12 02:11:07,662 INFO L513 LassoAnalysis]: Proved termination. [2023-11-12 02:11:07,662 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~k~0#1) = -2*ULTIMATE.start_main_~k~0#1 + 1 Supporting invariants [] [2023-11-12 02:11:07,665 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (101)] Ended with exit code 0 [2023-11-12 02:11:07,665 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-12 02:11:07,688 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:11:07,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:11:07,747 INFO L262 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-12 02:11:07,750 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:11:08,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:11:08,039 INFO L262 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-12 02:11:08,041 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:11:08,209 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 28 proven. 2 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-12 02:11:08,210 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 7 loop predicates [2023-11-12 02:11:08,210 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 565 states and 862 transitions. cyclomatic complexity: 314 Second operand has 10 states, 8 states have (on average 4.0) internal successors, (32), 9 states have internal predecessors, (32), 7 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (10), 6 states have call predecessors, (10), 7 states have call successors, (10) [2023-11-12 02:11:08,439 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (102)] Forceful destruction successful, exit code 0 [2023-11-12 02:11:08,610 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 565 states and 862 transitions. cyclomatic complexity: 314. Second operand has 10 states, 8 states have (on average 4.0) internal successors, (32), 9 states have internal predecessors, (32), 7 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (10), 6 states have call predecessors, (10), 7 states have call successors, (10) Result 2061 states and 3052 transitions. Complement of second has 43 states. [2023-11-12 02:11:08,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 10 states 2 stem states 7 non-accepting loop states 1 accepting loop states [2023-11-12 02:11:08,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 8 states have (on average 4.0) internal successors, (32), 9 states have internal predecessors, (32), 7 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (10), 6 states have call predecessors, (10), 7 states have call successors, (10) [2023-11-12 02:11:08,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 93 transitions. [2023-11-12 02:11:08,612 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 93 transitions. Stem has 38 letters. Loop has 38 letters. [2023-11-12 02:11:08,612 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-12 02:11:08,613 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 93 transitions. Stem has 76 letters. Loop has 38 letters. [2023-11-12 02:11:08,613 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-12 02:11:08,613 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 93 transitions. Stem has 38 letters. Loop has 76 letters. [2023-11-12 02:11:08,617 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-12 02:11:08,617 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2061 states and 3052 transitions. [2023-11-12 02:11:08,643 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 117 [2023-11-12 02:11:08,674 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2061 states to 1880 states and 2812 transitions. [2023-11-12 02:11:08,674 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 516 [2023-11-12 02:11:08,675 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 523 [2023-11-12 02:11:08,675 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1880 states and 2812 transitions. [2023-11-12 02:11:08,676 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-12 02:11:08,676 INFO L218 hiAutomatonCegarLoop]: Abstraction has 1880 states and 2812 transitions. [2023-11-12 02:11:08,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1880 states and 2812 transitions. [2023-11-12 02:11:08,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1880 to 1603. [2023-11-12 02:11:08,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1603 states, 1004 states have (on average 1.1294820717131475) internal successors, (1134), 1022 states have internal predecessors, (1134), 335 states have call successors, (366), 176 states have call predecessors, (366), 264 states have return successors, (978), 404 states have call predecessors, (978), 335 states have call successors, (978) [2023-11-12 02:11:08,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1603 states to 1603 states and 2478 transitions. [2023-11-12 02:11:08,770 INFO L240 hiAutomatonCegarLoop]: Abstraction has 1603 states and 2478 transitions. [2023-11-12 02:11:08,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:11:08,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-12 02:11:08,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2023-11-12 02:11:08,771 INFO L87 Difference]: Start difference. First operand 1603 states and 2478 transitions. Second operand has 14 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 14 states have internal predecessors, (46), 9 states have call successors, (19), 2 states have call predecessors, (19), 4 states have return successors, (19), 8 states have call predecessors, (19), 9 states have call successors, (19) [2023-11-12 02:11:09,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:11:09,215 INFO L93 Difference]: Finished difference Result 1974 states and 3263 transitions. [2023-11-12 02:11:09,215 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1974 states and 3263 transitions. [2023-11-12 02:11:09,241 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 196 [2023-11-12 02:11:09,272 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1974 states to 1902 states and 3183 transitions. [2023-11-12 02:11:09,272 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 598 [2023-11-12 02:11:09,273 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 598 [2023-11-12 02:11:09,274 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1902 states and 3183 transitions. [2023-11-12 02:11:09,274 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-12 02:11:09,274 INFO L218 hiAutomatonCegarLoop]: Abstraction has 1902 states and 3183 transitions. [2023-11-12 02:11:09,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1902 states and 3183 transitions. [2023-11-12 02:11:09,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1902 to 1692. [2023-11-12 02:11:09,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1692 states, 1034 states have (on average 1.1460348162475822) internal successors, (1185), 1060 states have internal predecessors, (1185), 412 states have call successors, (448), 166 states have call predecessors, (448), 246 states have return successors, (1144), 465 states have call predecessors, (1144), 412 states have call successors, (1144) [2023-11-12 02:11:09,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1692 states to 1692 states and 2777 transitions. [2023-11-12 02:11:09,419 INFO L240 hiAutomatonCegarLoop]: Abstraction has 1692 states and 2777 transitions. [2023-11-12 02:11:09,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-12 02:11:09,420 INFO L428 stractBuchiCegarLoop]: Abstraction has 1692 states and 2777 transitions. [2023-11-12 02:11:09,421 INFO L335 stractBuchiCegarLoop]: ======== Iteration 11 ============ [2023-11-12 02:11:09,421 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1692 states and 2777 transitions. [2023-11-12 02:11:09,435 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 160 [2023-11-12 02:11:09,436 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-12 02:11:09,436 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-12 02:11:09,437 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [5, 5, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:11:09,437 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [5, 5, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:11:09,438 INFO L748 eck$LassoCheckResult]: Stem: 19215#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 19166#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~ret9#1, main_#t~ret10#1, main_#t~post8#1, main_~k~0#1, main_#t~post7#1, main_~n~0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_#t~nondet4#1;main_~x~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 19167#L35 assume !(main_~x~0#1 < 0);havoc main_#t~nondet5#1;main_~y~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 19188#L38 assume !(main_~y~0#1 < 0);havoc main_#t~nondet6#1;main_~z~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;main_~n~0#1 := 0; 19175#L41-3 assume !!(main_~n~0#1 <= main_~x~0#1);main_~k~0#1 := 0; 19176#L42-3 assume !!(main_~k~0#1 <= main_~x~0#1); 20073#L43 assume main_~k~0#1 <= main_~n~0#1;assume { :begin_inline_binomialCoefficient } true;binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1 := main_~n~0#1, main_~k~0#1;havoc binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;binomialCoefficient_~n#1 := binomialCoefficient_#in~n#1;binomialCoefficient_~k#1 := binomialCoefficient_#in~k#1; 20070#L30 call binomialCoefficient_#t~ret1#1 := fact(binomialCoefficient_~n#1);< 20071#$Ultimate##0 ~n := #in~n; 20074#L25 assume ~n <= 0;#res := 1; 20072#factFINAL assume true; 20069#factEXIT >#72#return; 20049#L30-1 call binomialCoefficient_#t~ret2#1 := fact(binomialCoefficient_~k#1);< 20052#$Ultimate##0 ~n := #in~n; 20057#L25 assume ~n <= 0;#res := 1; 20048#factFINAL assume true; 20051#factEXIT >#74#return; 20050#L30-2 call binomialCoefficient_#t~ret3#1 := fact(binomialCoefficient_~n#1 - binomialCoefficient_~k#1);< 20052#$Ultimate##0 ~n := #in~n; 20057#L25 assume ~n <= 0;#res := 1; 20048#factFINAL assume true; 20051#factEXIT >#76#return; 20060#L30-3 binomialCoefficient_#res#1 := (if binomialCoefficient_#t~ret1#1 < 0 && 0 != binomialCoefficient_#t~ret1#1 % (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) then (if binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1 < 0 then binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) - 1 else 1 + binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1)) else binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1));havoc binomialCoefficient_#t~ret1#1;havoc binomialCoefficient_#t~ret2#1;havoc binomialCoefficient_#t~ret3#1; 20059#binomialCoefficient_returnLabel#1 main_#t~ret9#1 := binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;havoc binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1;assume { :end_inline_binomialCoefficient } true;havoc main_#t~ret9#1; 20058#L42-2 main_#t~post8#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post8#1;havoc main_#t~post8#1; 19534#L42-3 assume !(main_~k~0#1 <= main_~x~0#1); 19528#L42-4 havoc main_~k~0#1; 19527#L41-2 main_#t~post7#1 := main_~n~0#1;main_~n~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1; 19525#L41-3 assume !!(main_~n~0#1 <= main_~x~0#1);main_~k~0#1 := 0; 19524#L42-3 assume !!(main_~k~0#1 <= main_~x~0#1); 19521#L43 assume main_~k~0#1 <= main_~n~0#1;assume { :begin_inline_binomialCoefficient } true;binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1 := main_~n~0#1, main_~k~0#1;havoc binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;binomialCoefficient_~n#1 := binomialCoefficient_#in~n#1;binomialCoefficient_~k#1 := binomialCoefficient_#in~k#1; 19398#L30 call binomialCoefficient_#t~ret1#1 := fact(binomialCoefficient_~n#1);< 19409#$Ultimate##0 ~n := #in~n; 19432#L25 assume !(~n <= 0); 19413#L26 call #t~ret0 := fact(~n - 1);< 19415#$Ultimate##0 ~n := #in~n; 19434#L25 assume ~n <= 0;#res := 1; 19416#factFINAL assume true; 19411#factEXIT >#70#return; 19410#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 19408#factFINAL assume true; 19394#factEXIT >#72#return; 19399#L30-1 [2023-11-12 02:11:09,438 INFO L750 eck$LassoCheckResult]: Loop: 19399#L30-1 call binomialCoefficient_#t~ret2#1 := fact(binomialCoefficient_~k#1);< 19407#$Ultimate##0 ~n := #in~n; 19441#L25 assume ~n <= 0;#res := 1; 19448#factFINAL assume true; 19446#factEXIT >#74#return; 19397#L30-2 call binomialCoefficient_#t~ret3#1 := fact(binomialCoefficient_~n#1 - binomialCoefficient_~k#1);< 19407#$Ultimate##0 ~n := #in~n; 19441#L25 assume !(~n <= 0); 19413#L26 call #t~ret0 := fact(~n - 1);< 19415#$Ultimate##0 ~n := #in~n; 19434#L25 assume ~n <= 0;#res := 1; 19416#factFINAL assume true; 19411#factEXIT >#70#return; 19410#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 19408#factFINAL assume true; 19394#factEXIT >#76#return; 19405#L30-3 binomialCoefficient_#res#1 := (if binomialCoefficient_#t~ret1#1 < 0 && 0 != binomialCoefficient_#t~ret1#1 % (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) then (if binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1 < 0 then binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) - 1 else 1 + binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1)) else binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1));havoc binomialCoefficient_#t~ret1#1;havoc binomialCoefficient_#t~ret2#1;havoc binomialCoefficient_#t~ret3#1; 19445#binomialCoefficient_returnLabel#1 main_#t~ret9#1 := binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;havoc binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1;assume { :end_inline_binomialCoefficient } true;havoc main_#t~ret9#1; 19444#L42-2 main_#t~post8#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post8#1;havoc main_#t~post8#1; 19348#L42-3 assume !(main_~k~0#1 <= main_~x~0#1); 19338#L42-4 havoc main_~k~0#1; 19185#L41-2 main_#t~post7#1 := main_~n~0#1;main_~n~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1; 19186#L41-3 assume !!(main_~n~0#1 <= main_~x~0#1);main_~k~0#1 := 0; 19452#L42-3 assume !!(main_~k~0#1 <= main_~x~0#1); 19451#L43 assume main_~k~0#1 <= main_~n~0#1;assume { :begin_inline_binomialCoefficient } true;binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1 := main_~n~0#1, main_~k~0#1;havoc binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;binomialCoefficient_~n#1 := binomialCoefficient_#in~n#1;binomialCoefficient_~k#1 := binomialCoefficient_#in~k#1; 19402#L30 call binomialCoefficient_#t~ret1#1 := fact(binomialCoefficient_~n#1);< 19407#$Ultimate##0 ~n := #in~n; 19441#L25 assume !(~n <= 0); 19413#L26 call #t~ret0 := fact(~n - 1);< 19415#$Ultimate##0 ~n := #in~n; 19434#L25 assume ~n <= 0;#res := 1; 19416#factFINAL assume true; 19411#factEXIT >#70#return; 19410#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 19408#factFINAL assume true; 19394#factEXIT >#72#return; 19399#L30-1 [2023-11-12 02:11:09,439 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:11:09,439 INFO L85 PathProgramCache]: Analyzing trace with hash -1153804685, now seen corresponding path program 1 times [2023-11-12 02:11:09,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:11:09,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061606457] [2023-11-12 02:11:09,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:11:09,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:11:09,447 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:11:09,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1108838618] [2023-11-12 02:11:09,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:11:09,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:11:09,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:09,449 INFO L229 MonitoredProcess]: Starting monitored process 103 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:11:09,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (103)] Waiting until timeout for monitored process [2023-11-12 02:11:09,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:11:09,518 INFO L262 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-12 02:11:09,519 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:11:09,603 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 29 proven. 1 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-12 02:11:09,604 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:11:09,680 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-12 02:11:09,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:11:09,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061606457] [2023-11-12 02:11:09,681 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:11:09,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1108838618] [2023-11-12 02:11:09,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1108838618] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:11:09,682 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-12 02:11:09,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2023-11-12 02:11:09,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4715832] [2023-11-12 02:11:09,682 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-12 02:11:09,683 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-12 02:11:09,683 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:11:09,683 INFO L85 PathProgramCache]: Analyzing trace with hash -1800003872, now seen corresponding path program 2 times [2023-11-12 02:11:09,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:11:09,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747035241] [2023-11-12 02:11:09,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:11:09,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:11:09,693 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:11:09,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [298062650] [2023-11-12 02:11:09,693 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-12 02:11:09,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:11:09,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:09,695 INFO L229 MonitoredProcess]: Starting monitored process 104 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:11:09,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (104)] Waiting until timeout for monitored process [2023-11-12 02:11:09,755 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-12 02:11:09,756 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2023-11-12 02:11:09,756 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:11:09,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:11:09,779 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:11:10,204 INFO L210 LassoAnalysis]: Preferences: [2023-11-12 02:11:10,204 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-12 02:11:10,204 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-12 02:11:10,204 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-12 02:11:10,204 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-12 02:11:10,204 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:11:10,205 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-12 02:11:10,205 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-12 02:11:10,205 INFO L133 ssoRankerPreferences]: Filename of dumped script: Binomial.c_Iteration11_Loop [2023-11-12 02:11:10,205 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-12 02:11:10,205 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-12 02:11:10,206 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:11:10,209 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:11:10,212 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:11:10,214 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:11:10,220 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:11:10,227 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:11:10,230 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:11:10,232 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:11:10,235 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:11:10,238 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:11:10,240 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:11:10,249 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:11:10,350 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-12 02:11:10,351 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-12 02:11:10,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:11:10,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:10,354 INFO L229 MonitoredProcess]: Starting monitored process 105 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:11:10,358 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-12 02:11:10,358 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:11:10,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (105)] Waiting until timeout for monitored process [2023-11-12 02:11:10,392 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-12 02:11:10,392 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_binomialCoefficient_#t~ret1#1=1} Honda state: {ULTIMATE.start_binomialCoefficient_#t~ret1#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-12 02:11:10,395 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (105)] Forceful destruction successful, exit code 0 [2023-11-12 02:11:10,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:11:10,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:10,397 INFO L229 MonitoredProcess]: Starting monitored process 106 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:11:10,400 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-12 02:11:10,400 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:11:10,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (106)] Waiting until timeout for monitored process [2023-11-12 02:11:10,422 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-12 02:11:10,422 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post8#1=0} Honda state: {ULTIMATE.start_main_#t~post8#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-12 02:11:10,425 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (106)] Forceful destruction successful, exit code 0 [2023-11-12 02:11:10,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:11:10,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:10,427 INFO L229 MonitoredProcess]: Starting monitored process 107 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:11:10,431 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-12 02:11:10,431 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:11:10,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (107)] Waiting until timeout for monitored process [2023-11-12 02:11:10,452 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-12 02:11:10,452 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_binomialCoefficient_#t~ret3#1=0} Honda state: {ULTIMATE.start_binomialCoefficient_#t~ret3#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-12 02:11:10,456 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (107)] Forceful destruction successful, exit code 0 [2023-11-12 02:11:10,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:11:10,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:10,457 INFO L229 MonitoredProcess]: Starting monitored process 108 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:11:10,462 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-12 02:11:10,462 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:11:10,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (108)] Waiting until timeout for monitored process [2023-11-12 02:11:10,487 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (108)] Forceful destruction successful, exit code 0 [2023-11-12 02:11:10,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:11:10,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:10,489 INFO L229 MonitoredProcess]: Starting monitored process 109 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:11:10,492 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-12 02:11:10,492 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:11:10,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (109)] Waiting until timeout for monitored process [2023-11-12 02:11:10,523 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-12 02:11:10,527 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (109)] Forceful destruction successful, exit code 0 [2023-11-12 02:11:10,527 INFO L210 LassoAnalysis]: Preferences: [2023-11-12 02:11:10,527 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-12 02:11:10,527 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-12 02:11:10,527 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-12 02:11:10,528 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-12 02:11:10,528 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:11:10,528 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-12 02:11:10,528 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-12 02:11:10,528 INFO L133 ssoRankerPreferences]: Filename of dumped script: Binomial.c_Iteration11_Loop [2023-11-12 02:11:10,528 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-12 02:11:10,528 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-12 02:11:10,529 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:11:10,532 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:11:10,534 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:11:10,536 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:11:10,541 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:11:10,549 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:11:10,562 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:11:10,567 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:11:10,569 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:11:10,572 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:11:10,574 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:11:10,581 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:11:10,686 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-12 02:11:10,686 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-12 02:11:10,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:11:10,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:10,688 INFO L229 MonitoredProcess]: Starting monitored process 110 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:11:10,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (110)] Waiting until timeout for monitored process [2023-11-12 02:11:10,691 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 [2023-11-12 02:11:10,701 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:11:10,701 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-12 02:11:10,701 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:11:10,701 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:11:10,702 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-12 02:11:10,702 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-12 02:11:10,702 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-12 02:11:10,704 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-12 02:11:10,706 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (110)] Ended with exit code 0 [2023-11-12 02:11:10,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:11:10,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:10,708 INFO L229 MonitoredProcess]: Starting monitored process 111 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:11:10,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (111)] Waiting until timeout for monitored process [2023-11-12 02:11:10,711 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 [2023-11-12 02:11:10,721 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:11:10,721 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-12 02:11:10,721 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:11:10,721 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:11:10,721 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-12 02:11:10,721 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-12 02:11:10,722 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-12 02:11:10,723 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-12 02:11:10,725 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (111)] Ended with exit code 0 [2023-11-12 02:11:10,726 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:11:10,726 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:10,727 INFO L229 MonitoredProcess]: Starting monitored process 112 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:11:10,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (112)] Waiting until timeout for monitored process [2023-11-12 02:11:10,730 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 [2023-11-12 02:11:10,740 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:11:10,740 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-12 02:11:10,740 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:11:10,740 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:11:10,740 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-12 02:11:10,740 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-12 02:11:10,741 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-12 02:11:10,742 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-12 02:11:10,744 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (112)] Forceful destruction successful, exit code 0 [2023-11-12 02:11:10,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:11:10,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:10,746 INFO L229 MonitoredProcess]: Starting monitored process 113 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:11:10,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (113)] Waiting until timeout for monitored process [2023-11-12 02:11:10,749 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 [2023-11-12 02:11:10,759 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:11:10,759 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-12 02:11:10,759 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:11:10,759 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:11:10,759 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-12 02:11:10,760 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-12 02:11:10,760 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-12 02:11:10,762 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-12 02:11:10,764 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-12 02:11:10,765 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-12 02:11:10,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:11:10,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:10,767 INFO L229 MonitoredProcess]: Starting monitored process 114 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:11:10,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (114)] Waiting until timeout for monitored process [2023-11-12 02:11:10,769 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-12 02:11:10,769 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-12 02:11:10,769 INFO L513 LassoAnalysis]: Proved termination. [2023-11-12 02:11:10,769 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0#1) = -2*ULTIMATE.start_main_~n~0#1 + 1 Supporting invariants [] [2023-11-12 02:11:10,771 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (113)] Forceful destruction successful, exit code 0 [2023-11-12 02:11:10,772 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-12 02:11:10,787 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:11:10,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:11:10,830 INFO L262 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-12 02:11:10,832 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:11:11,086 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (114)] Forceful destruction successful, exit code 0 [2023-11-12 02:11:11,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:11:11,172 INFO L262 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-12 02:11:11,174 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:11:11,343 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 21 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-12 02:11:11,344 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 7 loop predicates [2023-11-12 02:11:11,344 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 1692 states and 2777 transitions. cyclomatic complexity: 1123 Second operand has 10 states, 8 states have (on average 4.75) internal successors, (38), 9 states have internal predecessors, (38), 7 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (10), 6 states have call predecessors, (10), 7 states have call successors, (10) [2023-11-12 02:11:11,754 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 1692 states and 2777 transitions. cyclomatic complexity: 1123. Second operand has 10 states, 8 states have (on average 4.75) internal successors, (38), 9 states have internal predecessors, (38), 7 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (10), 6 states have call predecessors, (10), 7 states have call successors, (10) Result 4773 states and 7896 transitions. Complement of second has 41 states. [2023-11-12 02:11:11,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 10 states 2 stem states 7 non-accepting loop states 1 accepting loop states [2023-11-12 02:11:11,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 8 states have (on average 4.75) internal successors, (38), 9 states have internal predecessors, (38), 7 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (10), 6 states have call predecessors, (10), 7 states have call successors, (10) [2023-11-12 02:11:11,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 99 transitions. [2023-11-12 02:11:11,758 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 99 transitions. Stem has 42 letters. Loop has 36 letters. [2023-11-12 02:11:11,758 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-12 02:11:11,758 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 99 transitions. Stem has 78 letters. Loop has 36 letters. [2023-11-12 02:11:11,761 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-12 02:11:11,761 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 99 transitions. Stem has 42 letters. Loop has 72 letters. [2023-11-12 02:11:11,762 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-12 02:11:11,762 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 4773 states and 7896 transitions. [2023-11-12 02:11:11,825 INFO L131 ngComponentsAnalysis]: Automaton has 11 accepting balls. 215 [2023-11-12 02:11:11,886 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 4773 states to 3769 states and 6223 transitions. [2023-11-12 02:11:11,886 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 746 [2023-11-12 02:11:11,888 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 776 [2023-11-12 02:11:11,888 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3769 states and 6223 transitions. [2023-11-12 02:11:11,890 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-12 02:11:11,890 INFO L218 hiAutomatonCegarLoop]: Abstraction has 3769 states and 6223 transitions. [2023-11-12 02:11:11,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3769 states and 6223 transitions. [2023-11-12 02:11:12,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3769 to 3553. [2023-11-12 02:11:12,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3553 states, 2170 states have (on average 1.1497695852534562) internal successors, (2495), 2218 states have internal predecessors, (2495), 849 states have call successors, (953), 353 states have call predecessors, (953), 534 states have return successors, (2421), 981 states have call predecessors, (2421), 849 states have call successors, (2421) [2023-11-12 02:11:12,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3553 states to 3553 states and 5869 transitions. [2023-11-12 02:11:12,136 INFO L240 hiAutomatonCegarLoop]: Abstraction has 3553 states and 5869 transitions. [2023-11-12 02:11:12,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:11:12,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-12 02:11:12,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2023-11-12 02:11:12,137 INFO L87 Difference]: Start difference. First operand 3553 states and 5869 transitions. Second operand has 11 states, 11 states have (on average 3.272727272727273) internal successors, (36), 11 states have internal predecessors, (36), 4 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-12 02:11:12,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:11:12,394 INFO L93 Difference]: Finished difference Result 1667 states and 2691 transitions. [2023-11-12 02:11:12,394 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1667 states and 2691 transitions. [2023-11-12 02:11:12,413 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 112 [2023-11-12 02:11:12,436 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1667 states to 1631 states and 2647 transitions. [2023-11-12 02:11:12,436 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 355 [2023-11-12 02:11:12,437 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 355 [2023-11-12 02:11:12,437 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1631 states and 2647 transitions. [2023-11-12 02:11:12,437 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-12 02:11:12,437 INFO L218 hiAutomatonCegarLoop]: Abstraction has 1631 states and 2647 transitions. [2023-11-12 02:11:12,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1631 states and 2647 transitions. [2023-11-12 02:11:12,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1631 to 1439. [2023-11-12 02:11:12,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1439 states, 892 states have (on average 1.1210762331838564) internal successors, (1000), 917 states have internal predecessors, (1000), 330 states have call successors, (361), 141 states have call predecessors, (361), 217 states have return successors, (877), 380 states have call predecessors, (877), 330 states have call successors, (877) [2023-11-12 02:11:12,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1439 states to 1439 states and 2238 transitions. [2023-11-12 02:11:12,506 INFO L240 hiAutomatonCegarLoop]: Abstraction has 1439 states and 2238 transitions. [2023-11-12 02:11:12,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-12 02:11:12,507 INFO L428 stractBuchiCegarLoop]: Abstraction has 1439 states and 2238 transitions. [2023-11-12 02:11:12,508 INFO L335 stractBuchiCegarLoop]: ======== Iteration 12 ============ [2023-11-12 02:11:12,508 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1439 states and 2238 transitions. [2023-11-12 02:11:12,515 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 95 [2023-11-12 02:11:12,515 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-12 02:11:12,515 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-12 02:11:12,517 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [7, 7, 6, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:11:12,517 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [10, 10, 7, 7, 7, 7, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:11:12,517 INFO L748 eck$LassoCheckResult]: Stem: 31486#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 31426#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~ret9#1, main_#t~ret10#1, main_#t~post8#1, main_~k~0#1, main_#t~post7#1, main_~n~0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_#t~nondet4#1;main_~x~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 31427#L35 assume !(main_~x~0#1 < 0);havoc main_#t~nondet5#1;main_~y~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 31451#L38 assume !(main_~y~0#1 < 0);havoc main_#t~nondet6#1;main_~z~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;main_~n~0#1 := 0; 31487#L41-3 assume !!(main_~n~0#1 <= main_~x~0#1);main_~k~0#1 := 0; 31994#L42-3 assume !!(main_~k~0#1 <= main_~x~0#1); 32411#L43 assume main_~k~0#1 <= main_~n~0#1;assume { :begin_inline_binomialCoefficient } true;binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1 := main_~n~0#1, main_~k~0#1;havoc binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;binomialCoefficient_~n#1 := binomialCoefficient_#in~n#1;binomialCoefficient_~k#1 := binomialCoefficient_#in~k#1; 32404#L30 call binomialCoefficient_#t~ret1#1 := fact(binomialCoefficient_~n#1);< 32405#$Ultimate##0 ~n := #in~n; 32407#L25 assume ~n <= 0;#res := 1; 32406#factFINAL assume true; 32403#factEXIT >#72#return; 32397#L30-1 call binomialCoefficient_#t~ret2#1 := fact(binomialCoefficient_~k#1);< 32398#$Ultimate##0 ~n := #in~n; 32410#L25 assume ~n <= 0;#res := 1; 32402#factFINAL assume true; 32396#factEXIT >#74#return; 32393#L30-2 call binomialCoefficient_#t~ret3#1 := fact(binomialCoefficient_~n#1 - binomialCoefficient_~k#1);< 32394#$Ultimate##0 ~n := #in~n; 32399#L25 assume ~n <= 0;#res := 1; 32395#factFINAL assume true; 32392#factEXIT >#76#return; 31442#L30-3 binomialCoefficient_#res#1 := (if binomialCoefficient_#t~ret1#1 < 0 && 0 != binomialCoefficient_#t~ret1#1 % (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) then (if binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1 < 0 then binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) - 1 else 1 + binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1)) else binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1));havoc binomialCoefficient_#t~ret1#1;havoc binomialCoefficient_#t~ret2#1;havoc binomialCoefficient_#t~ret3#1; 31444#binomialCoefficient_returnLabel#1 main_#t~ret9#1 := binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;havoc binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1;assume { :end_inline_binomialCoefficient } true;havoc main_#t~ret9#1; 32530#L42-2 main_#t~post8#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post8#1;havoc main_#t~post8#1; 32488#L42-3 assume !!(main_~k~0#1 <= main_~x~0#1); 32489#L43 assume !(main_~k~0#1 <= main_~n~0#1);assume { :begin_inline_binomialCoefficient } true;binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1 := main_~k~0#1, main_~n~0#1;havoc binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;binomialCoefficient_~n#1 := binomialCoefficient_#in~n#1;binomialCoefficient_~k#1 := binomialCoefficient_#in~k#1; 32483#L30-5 call binomialCoefficient_#t~ret1#1 := fact(binomialCoefficient_~n#1);< 32484#$Ultimate##0 ~n := #in~n; 32522#L25 assume ~n <= 0;#res := 1; 32523#factFINAL assume true; 32482#factEXIT >#78#return; 31477#L30-6 call binomialCoefficient_#t~ret2#1 := fact(binomialCoefficient_~k#1);< 32431#$Ultimate##0 ~n := #in~n; 32444#L25 assume ~n <= 0;#res := 1; 32442#factFINAL assume true; 32427#factEXIT >#80#return; 31434#L30-7 call binomialCoefficient_#t~ret3#1 := fact(binomialCoefficient_~n#1 - binomialCoefficient_~k#1);< 32480#$Ultimate##0 ~n := #in~n; 32493#L25 assume !(~n <= 0); 31432#L26 call #t~ret0 := fact(~n - 1);< 31435#$Ultimate##0 ~n := #in~n; 32508#L25 assume ~n <= 0;#res := 1; 32521#factFINAL assume true; 32519#factEXIT >#70#return; 32520#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 32838#factFINAL assume true; 32821#factEXIT >#82#return; 32388#L30-8 [2023-11-12 02:11:12,517 INFO L750 eck$LassoCheckResult]: Loop: 32388#L30-8 binomialCoefficient_#res#1 := (if binomialCoefficient_#t~ret1#1 < 0 && 0 != binomialCoefficient_#t~ret1#1 % (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) then (if binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1 < 0 then binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) - 1 else 1 + binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1)) else binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1));havoc binomialCoefficient_#t~ret1#1;havoc binomialCoefficient_#t~ret2#1;havoc binomialCoefficient_#t~ret3#1; 32386#binomialCoefficient_returnLabel#2 main_#t~ret10#1 := binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;havoc binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1;assume { :end_inline_binomialCoefficient } true;havoc main_#t~ret10#1; 32387#L42-2 main_#t~post8#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post8#1;havoc main_#t~post8#1; 32459#L42-3 assume !!(main_~k~0#1 <= main_~x~0#1); 31456#L43 assume !(main_~k~0#1 <= main_~n~0#1);assume { :begin_inline_binomialCoefficient } true;binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1 := main_~k~0#1, main_~n~0#1;havoc binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;binomialCoefficient_~n#1 := binomialCoefficient_#in~n#1;binomialCoefficient_~k#1 := binomialCoefficient_#in~k#1; 31420#L30-5 call binomialCoefficient_#t~ret1#1 := fact(binomialCoefficient_~n#1);< 32428#$Ultimate##0 ~n := #in~n; 32451#L25 assume !(~n <= 0); 32452#L26 call #t~ret0 := fact(~n - 1);< 31435#$Ultimate##0 ~n := #in~n; 32504#L25 assume !(~n <= 0); 32500#L26 call #t~ret0 := fact(~n - 1);< 32503#$Ultimate##0 ~n := #in~n; 32504#L25 assume !(~n <= 0); 32500#L26 call #t~ret0 := fact(~n - 1);< 32503#$Ultimate##0 ~n := #in~n; 32507#L25 assume ~n <= 0;#res := 1; 32512#factFINAL assume true; 32511#factEXIT >#70#return; 32510#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 32509#factFINAL assume true; 32505#factEXIT >#70#return; 32501#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 32502#factFINAL assume true; 32499#factEXIT >#70#return; 32498#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 32497#factFINAL assume true; 32485#factEXIT >#78#return; 31417#L30-6 call binomialCoefficient_#t~ret2#1 := fact(binomialCoefficient_~k#1);< 32428#$Ultimate##0 ~n := #in~n; 32451#L25 assume !(~n <= 0); 32452#L26 call #t~ret0 := fact(~n - 1);< 31435#$Ultimate##0 ~n := #in~n; 32504#L25 assume !(~n <= 0); 32500#L26 call #t~ret0 := fact(~n - 1);< 32503#$Ultimate##0 ~n := #in~n; 32507#L25 assume ~n <= 0;#res := 1; 32512#factFINAL assume true; 32511#factEXIT >#70#return; 32510#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 32509#factFINAL assume true; 32505#factEXIT >#70#return; 32506#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 32495#factFINAL assume true; 32496#factEXIT >#80#return; 31418#L30-7 call binomialCoefficient_#t~ret3#1 := fact(binomialCoefficient_~n#1 - binomialCoefficient_~k#1);< 32391#$Ultimate##0 ~n := #in~n; 32490#L25 assume !(~n <= 0); 32452#L26 call #t~ret0 := fact(~n - 1);< 31435#$Ultimate##0 ~n := #in~n; 32504#L25 assume !(~n <= 0); 32500#L26 call #t~ret0 := fact(~n - 1);< 32503#$Ultimate##0 ~n := #in~n; 32507#L25 assume ~n <= 0;#res := 1; 32512#factFINAL assume true; 32511#factEXIT >#70#return; 32510#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 32509#factFINAL assume true; 32505#factEXIT >#70#return; 32506#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 32495#factFINAL assume true; 32496#factEXIT >#82#return; 32388#L30-8 [2023-11-12 02:11:12,518 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:11:12,518 INFO L85 PathProgramCache]: Analyzing trace with hash 248376115, now seen corresponding path program 1 times [2023-11-12 02:11:12,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:11:12,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948602805] [2023-11-12 02:11:12,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:11:12,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:11:12,525 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:11:12,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1072301300] [2023-11-12 02:11:12,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:11:12,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:11:12,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:12,527 INFO L229 MonitoredProcess]: Starting monitored process 115 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:11:12,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (115)] Waiting until timeout for monitored process [2023-11-12 02:11:12,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:11:12,595 INFO L262 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-12 02:11:12,596 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:11:12,640 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-11-12 02:11:12,640 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:11:12,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:11:12,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948602805] [2023-11-12 02:11:12,641 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:11:12,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1072301300] [2023-11-12 02:11:12,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1072301300] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:11:12,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:11:12,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-12 02:11:12,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32221712] [2023-11-12 02:11:12,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:11:12,642 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-12 02:11:12,642 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:11:12,643 INFO L85 PathProgramCache]: Analyzing trace with hash 597548028, now seen corresponding path program 2 times [2023-11-12 02:11:12,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:11:12,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181661213] [2023-11-12 02:11:12,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:11:12,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:11:12,648 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:11:12,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1895008847] [2023-11-12 02:11:12,648 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-12 02:11:12,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:11:12,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:12,650 INFO L229 MonitoredProcess]: Starting monitored process 116 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:11:12,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (116)] Waiting until timeout for monitored process [2023-11-12 02:11:12,719 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-12 02:11:12,720 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-12 02:11:12,721 INFO L262 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-12 02:11:12,723 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:11:12,897 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 23 proven. 128 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2023-11-12 02:11:12,897 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:11:13,848 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 23 proven. 141 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2023-11-12 02:11:13,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:11:13,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181661213] [2023-11-12 02:11:13,849 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:11:13,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1895008847] [2023-11-12 02:11:13,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1895008847] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:11:13,849 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-12 02:11:13,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 15] total 18 [2023-11-12 02:11:13,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684797266] [2023-11-12 02:11:13,850 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-12 02:11:13,851 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-12 02:11:13,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:11:13,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-12 02:11:13,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:11:13,852 INFO L87 Difference]: Start difference. First operand 1439 states and 2238 transitions. cyclomatic complexity: 831 Second operand has 7 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 7 states have internal predecessors, (23), 3 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (7), 2 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-12 02:11:14,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:11:14,016 INFO L93 Difference]: Finished difference Result 1391 states and 2113 transitions. [2023-11-12 02:11:14,016 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1391 states and 2113 transitions. [2023-11-12 02:11:14,031 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 95 [2023-11-12 02:11:14,047 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1391 states to 1082 states and 1682 transitions. [2023-11-12 02:11:14,048 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 292 [2023-11-12 02:11:14,048 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 292 [2023-11-12 02:11:14,049 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1082 states and 1682 transitions. [2023-11-12 02:11:14,049 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-12 02:11:14,049 INFO L218 hiAutomatonCegarLoop]: Abstraction has 1082 states and 1682 transitions. [2023-11-12 02:11:14,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1082 states and 1682 transitions. [2023-11-12 02:11:14,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1082 to 1076. [2023-11-12 02:11:14,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1076 states, 666 states have (on average 1.1276276276276276) internal successors, (751), 682 states have internal predecessors, (751), 257 states have call successors, (269), 100 states have call predecessors, (269), 153 states have return successors, (656), 293 states have call predecessors, (656), 257 states have call successors, (656) [2023-11-12 02:11:14,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1076 states to 1076 states and 1676 transitions. [2023-11-12 02:11:14,146 INFO L240 hiAutomatonCegarLoop]: Abstraction has 1076 states and 1676 transitions. [2023-11-12 02:11:14,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 02:11:14,147 INFO L428 stractBuchiCegarLoop]: Abstraction has 1076 states and 1676 transitions. [2023-11-12 02:11:14,147 INFO L335 stractBuchiCegarLoop]: ======== Iteration 13 ============ [2023-11-12 02:11:14,147 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1076 states and 1676 transitions. [2023-11-12 02:11:14,152 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 95 [2023-11-12 02:11:14,153 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-12 02:11:14,153 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-12 02:11:14,155 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [8, 8, 6, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:11:14,155 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [7, 7, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:11:14,155 INFO L748 eck$LassoCheckResult]: Stem: 34843#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 34792#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~ret9#1, main_#t~ret10#1, main_#t~post8#1, main_~k~0#1, main_#t~post7#1, main_~n~0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_#t~nondet4#1;main_~x~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 34793#L35 assume !(main_~x~0#1 < 0);havoc main_#t~nondet5#1;main_~y~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 34815#L38 assume !(main_~y~0#1 < 0);havoc main_#t~nondet6#1;main_~z~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;main_~n~0#1 := 0; 34803#L41-3 assume !!(main_~n~0#1 <= main_~x~0#1);main_~k~0#1 := 0; 34805#L42-3 assume !!(main_~k~0#1 <= main_~x~0#1); 34819#L43 assume main_~k~0#1 <= main_~n~0#1;assume { :begin_inline_binomialCoefficient } true;binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1 := main_~n~0#1, main_~k~0#1;havoc binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;binomialCoefficient_~n#1 := binomialCoefficient_#in~n#1;binomialCoefficient_~k#1 := binomialCoefficient_#in~k#1; 34784#L30 call binomialCoefficient_#t~ret1#1 := fact(binomialCoefficient_~n#1);< 34785#$Ultimate##0 ~n := #in~n; 35242#L25 assume ~n <= 0;#res := 1; 35240#factFINAL assume true; 35238#factEXIT >#72#return; 34830#L30-1 call binomialCoefficient_#t~ret2#1 := fact(binomialCoefficient_~k#1);< 34831#$Ultimate##0 ~n := #in~n; 35243#L25 assume ~n <= 0;#res := 1; 35241#factFINAL assume true; 35239#factEXIT >#74#return; 34780#L30-2 call binomialCoefficient_#t~ret3#1 := fact(binomialCoefficient_~n#1 - binomialCoefficient_~k#1);< 34781#$Ultimate##0 ~n := #in~n; 35275#L25 assume ~n <= 0;#res := 1; 35276#factFINAL assume true; 35247#factEXIT >#76#return; 34808#L30-3 binomialCoefficient_#res#1 := (if binomialCoefficient_#t~ret1#1 < 0 && 0 != binomialCoefficient_#t~ret1#1 % (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) then (if binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1 < 0 then binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) - 1 else 1 + binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1)) else binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1));havoc binomialCoefficient_#t~ret1#1;havoc binomialCoefficient_#t~ret2#1;havoc binomialCoefficient_#t~ret3#1; 34809#binomialCoefficient_returnLabel#1 main_#t~ret9#1 := binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;havoc binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1;assume { :end_inline_binomialCoefficient } true;havoc main_#t~ret9#1; 34821#L42-2 main_#t~post8#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post8#1;havoc main_#t~post8#1; 34841#L42-3 assume !!(main_~k~0#1 <= main_~x~0#1); 35230#L43 assume !(main_~k~0#1 <= main_~n~0#1);assume { :begin_inline_binomialCoefficient } true;binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1 := main_~k~0#1, main_~n~0#1;havoc binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;binomialCoefficient_~n#1 := binomialCoefficient_#in~n#1;binomialCoefficient_~k#1 := binomialCoefficient_#in~k#1; 35231#L30-5 call binomialCoefficient_#t~ret1#1 := fact(binomialCoefficient_~n#1);< 35246#$Ultimate##0 ~n := #in~n; 35236#L25 assume !(~n <= 0); 35237#L26 call #t~ret0 := fact(~n - 1);< 35256#$Ultimate##0 ~n := #in~n; 35261#L25 assume ~n <= 0;#res := 1; 35260#factFINAL assume true; 35255#factEXIT >#70#return; 35252#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 35248#factFINAL assume true; 35244#factEXIT >#78#return; 34834#L30-6 call binomialCoefficient_#t~ret2#1 := fact(binomialCoefficient_~k#1);< 34833#$Ultimate##0 ~n := #in~n; 34836#L25 assume ~n <= 0;#res := 1; 35350#factFINAL assume true; 35347#factEXIT >#80#return; 34844#L30-7 call binomialCoefficient_#t~ret3#1 := fact(binomialCoefficient_~n#1 - binomialCoefficient_~k#1);< 34845#$Ultimate##0 ~n := #in~n; 35277#L25 assume !(~n <= 0); 35265#L26 call #t~ret0 := fact(~n - 1);< 35269#$Ultimate##0 ~n := #in~n; 35284#L25 assume ~n <= 0;#res := 1; 35282#factFINAL assume true; 35278#factEXIT >#70#return; 35279#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 35839#factFINAL assume true; 35836#factEXIT >#82#return; 34794#L30-8 [2023-11-12 02:11:14,156 INFO L750 eck$LassoCheckResult]: Loop: 34794#L30-8 binomialCoefficient_#res#1 := (if binomialCoefficient_#t~ret1#1 < 0 && 0 != binomialCoefficient_#t~ret1#1 % (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) then (if binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1 < 0 then binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) - 1 else 1 + binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1)) else binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1));havoc binomialCoefficient_#t~ret1#1;havoc binomialCoefficient_#t~ret2#1;havoc binomialCoefficient_#t~ret3#1; 34795#binomialCoefficient_returnLabel#2 main_#t~ret10#1 := binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;havoc binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1;assume { :end_inline_binomialCoefficient } true;havoc main_#t~ret10#1; 34816#L42-2 main_#t~post8#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post8#1;havoc main_#t~post8#1; 35232#L42-3 assume !!(main_~k~0#1 <= main_~x~0#1); 35233#L43 assume !(main_~k~0#1 <= main_~n~0#1);assume { :begin_inline_binomialCoefficient } true;binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1 := main_~k~0#1, main_~n~0#1;havoc binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;binomialCoefficient_~n#1 := binomialCoefficient_#in~n#1;binomialCoefficient_~k#1 := binomialCoefficient_#in~k#1; 34768#L30-5 call binomialCoefficient_#t~ret1#1 := fact(binomialCoefficient_~n#1);< 34769#$Ultimate##0 ~n := #in~n; 35258#L25 assume !(~n <= 0); 35259#L26 call #t~ret0 := fact(~n - 1);< 35269#$Ultimate##0 ~n := #in~n; 35286#L25 assume !(~n <= 0); 35266#L26 call #t~ret0 := fact(~n - 1);< 35273#$Ultimate##0 ~n := #in~n; 35286#L25 assume !(~n <= 0); 35266#L26 call #t~ret0 := fact(~n - 1);< 35273#$Ultimate##0 ~n := #in~n; 35288#L25 assume ~n <= 0;#res := 1; 35289#factFINAL assume true; 35287#factEXIT >#70#return; 35285#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 35283#factFINAL assume true; 35280#factEXIT >#70#return; 35268#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 35272#factFINAL assume true; 35264#factEXIT >#70#return; 35263#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 35262#factFINAL assume true; 35254#factEXIT >#78#return; 34887#L30-6 call binomialCoefficient_#t~ret2#1 := fact(binomialCoefficient_~k#1);< 34769#$Ultimate##0 ~n := #in~n; 35258#L25 assume ~n <= 0;#res := 1; 35257#factFINAL assume true; 35253#factEXIT >#80#return; 34888#L30-7 call binomialCoefficient_#t~ret3#1 := fact(binomialCoefficient_~n#1 - binomialCoefficient_~k#1);< 35249#$Ultimate##0 ~n := #in~n; 35270#L25 assume !(~n <= 0); 35259#L26 call #t~ret0 := fact(~n - 1);< 35269#$Ultimate##0 ~n := #in~n; 35284#L25 assume ~n <= 0;#res := 1; 35282#factFINAL assume true; 35278#factEXIT >#70#return; 35274#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 35271#factFINAL assume true; 34886#factEXIT >#82#return; 34794#L30-8 [2023-11-12 02:11:14,156 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:11:14,157 INFO L85 PathProgramCache]: Analyzing trace with hash 816659251, now seen corresponding path program 2 times [2023-11-12 02:11:14,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:11:14,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163783902] [2023-11-12 02:11:14,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:11:14,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:11:14,169 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:11:14,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [988871535] [2023-11-12 02:11:14,170 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-12 02:11:14,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:11:14,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:14,175 INFO L229 MonitoredProcess]: Starting monitored process 117 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:11:14,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (117)] Waiting until timeout for monitored process [2023-11-12 02:11:14,253 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-12 02:11:14,254 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2023-11-12 02:11:14,254 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:11:14,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:11:14,288 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:11:14,288 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:11:14,288 INFO L85 PathProgramCache]: Analyzing trace with hash 627588028, now seen corresponding path program 3 times [2023-11-12 02:11:14,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:11:14,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741301898] [2023-11-12 02:11:14,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:11:14,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:11:14,292 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:11:14,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [497426601] [2023-11-12 02:11:14,293 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-12 02:11:14,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:11:14,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:14,297 INFO L229 MonitoredProcess]: Starting monitored process 118 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:11:14,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (118)] Waiting until timeout for monitored process [2023-11-12 02:11:14,365 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2023-11-12 02:11:14,365 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-12 02:11:14,367 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-12 02:11:14,368 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:11:14,482 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 24 proven. 42 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-12 02:11:14,482 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:11:14,959 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 23 proven. 46 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-11-12 02:11:14,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:11:14,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741301898] [2023-11-12 02:11:14,960 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:11:14,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [497426601] [2023-11-12 02:11:14,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [497426601] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:11:14,960 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-12 02:11:14,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 12] total 17 [2023-11-12 02:11:14,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876342255] [2023-11-12 02:11:14,960 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-12 02:11:14,961 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-12 02:11:14,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:11:14,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-12 02:11:14,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2023-11-12 02:11:14,962 INFO L87 Difference]: Start difference. First operand 1076 states and 1676 transitions. cyclomatic complexity: 625 Second operand has 18 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 13 states have internal predecessors, (33), 11 states have call successors, (11), 1 states have call predecessors, (11), 6 states have return successors, (13), 9 states have call predecessors, (13), 11 states have call successors, (13) [2023-11-12 02:11:15,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:11:15,576 INFO L93 Difference]: Finished difference Result 1847 states and 2870 transitions. [2023-11-12 02:11:15,576 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1847 states and 2870 transitions. [2023-11-12 02:11:15,593 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 212 [2023-11-12 02:11:15,621 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1847 states to 1790 states and 2786 transitions. [2023-11-12 02:11:15,621 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 483 [2023-11-12 02:11:15,622 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 483 [2023-11-12 02:11:15,622 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1790 states and 2786 transitions. [2023-11-12 02:11:15,625 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-12 02:11:15,625 INFO L218 hiAutomatonCegarLoop]: Abstraction has 1790 states and 2786 transitions. [2023-11-12 02:11:15,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1790 states and 2786 transitions. [2023-11-12 02:11:15,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1790 to 1268. [2023-11-12 02:11:15,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1268 states, 758 states have (on average 1.1121372031662269) internal successors, (843), 762 states have internal predecessors, (843), 357 states have call successors, (369), 152 states have call predecessors, (369), 153 states have return successors, (790), 353 states have call predecessors, (790), 357 states have call successors, (790) [2023-11-12 02:11:15,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1268 states to 1268 states and 2002 transitions. [2023-11-12 02:11:15,692 INFO L240 hiAutomatonCegarLoop]: Abstraction has 1268 states and 2002 transitions. [2023-11-12 02:11:15,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-12 02:11:15,693 INFO L428 stractBuchiCegarLoop]: Abstraction has 1268 states and 2002 transitions. [2023-11-12 02:11:15,694 INFO L335 stractBuchiCegarLoop]: ======== Iteration 14 ============ [2023-11-12 02:11:15,694 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1268 states and 2002 transitions. [2023-11-12 02:11:15,700 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 113 [2023-11-12 02:11:15,701 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-12 02:11:15,701 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-12 02:11:15,702 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [8, 8, 6, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:11:15,702 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [9, 9, 6, 6, 6, 6, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:11:15,702 INFO L748 eck$LassoCheckResult]: Stem: 38078#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 38017#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~ret9#1, main_#t~ret10#1, main_#t~post8#1, main_~k~0#1, main_#t~post7#1, main_~n~0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_#t~nondet4#1;main_~x~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 38018#L35 assume !(main_~x~0#1 < 0);havoc main_#t~nondet5#1;main_~y~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 38039#L38 assume !(main_~y~0#1 < 0);havoc main_#t~nondet6#1;main_~z~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;main_~n~0#1 := 0; 38027#L41-3 assume !!(main_~n~0#1 <= main_~x~0#1);main_~k~0#1 := 0; 38029#L42-3 assume !!(main_~k~0#1 <= main_~x~0#1); 38097#L43 assume main_~k~0#1 <= main_~n~0#1;assume { :begin_inline_binomialCoefficient } true;binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1 := main_~n~0#1, main_~k~0#1;havoc binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;binomialCoefficient_~n#1 := binomialCoefficient_#in~n#1;binomialCoefficient_~k#1 := binomialCoefficient_#in~k#1; 38098#L30 call binomialCoefficient_#t~ret1#1 := fact(binomialCoefficient_~n#1);< 38229#$Ultimate##0 ~n := #in~n; 38232#L25 assume ~n <= 0;#res := 1; 38231#factFINAL assume true; 38228#factEXIT >#72#return; 38225#L30-1 call binomialCoefficient_#t~ret2#1 := fact(binomialCoefficient_~k#1);< 38226#$Ultimate##0 ~n := #in~n; 38230#L25 assume ~n <= 0;#res := 1; 38227#factFINAL assume true; 38224#factEXIT >#74#return; 38022#L30-2 call binomialCoefficient_#t~ret3#1 := fact(binomialCoefficient_~n#1 - binomialCoefficient_~k#1);< 38223#$Ultimate##0 ~n := #in~n; 38521#L25 assume ~n <= 0;#res := 1; 38238#factFINAL assume true; 38222#factEXIT >#76#return; 38221#L30-3 binomialCoefficient_#res#1 := (if binomialCoefficient_#t~ret1#1 < 0 && 0 != binomialCoefficient_#t~ret1#1 % (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) then (if binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1 < 0 then binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) - 1 else 1 + binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1)) else binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1));havoc binomialCoefficient_#t~ret1#1;havoc binomialCoefficient_#t~ret2#1;havoc binomialCoefficient_#t~ret3#1; 38219#binomialCoefficient_returnLabel#1 main_#t~ret9#1 := binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;havoc binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1;assume { :end_inline_binomialCoefficient } true;havoc main_#t~ret9#1; 38220#L42-2 main_#t~post8#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post8#1;havoc main_#t~post8#1; 38195#L42-3 assume !!(main_~k~0#1 <= main_~x~0#1); 38196#L43 assume !(main_~k~0#1 <= main_~n~0#1);assume { :begin_inline_binomialCoefficient } true;binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1 := main_~k~0#1, main_~n~0#1;havoc binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;binomialCoefficient_~n#1 := binomialCoefficient_#in~n#1;binomialCoefficient_~k#1 := binomialCoefficient_#in~k#1; 37992#L30-5 call binomialCoefficient_#t~ret1#1 := fact(binomialCoefficient_~n#1);< 37993#$Ultimate##0 ~n := #in~n; 38502#L25 assume !(~n <= 0); 38499#L26 call #t~ret0 := fact(~n - 1);< 38500#$Ultimate##0 ~n := #in~n; 38503#L25 assume ~n <= 0;#res := 1; 38501#factFINAL assume true; 38498#factEXIT >#70#return; 38497#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 38496#factFINAL assume true; 38495#factEXIT >#78#return; 38072#L30-6 call binomialCoefficient_#t~ret2#1 := fact(binomialCoefficient_~k#1);< 38073#$Ultimate##0 ~n := #in~n; 38564#L25 assume ~n <= 0;#res := 1; 38555#factFINAL assume true; 38553#factEXIT >#80#return; 37997#L30-7 call binomialCoefficient_#t~ret3#1 := fact(binomialCoefficient_~n#1 - binomialCoefficient_~k#1);< 38079#$Ultimate##0 ~n := #in~n; 38494#L25 assume !(~n <= 0); 38483#L26 call #t~ret0 := fact(~n - 1);< 38493#$Ultimate##0 ~n := #in~n; 38534#L25 assume ~n <= 0;#res := 1; 38532#factFINAL assume true; 38530#factEXIT >#70#return; 38531#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 39254#factFINAL assume true; 39253#factEXIT >#82#return; 37999#L30-8 [2023-11-12 02:11:15,703 INFO L750 eck$LassoCheckResult]: Loop: 37999#L30-8 binomialCoefficient_#res#1 := (if binomialCoefficient_#t~ret1#1 < 0 && 0 != binomialCoefficient_#t~ret1#1 % (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) then (if binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1 < 0 then binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) - 1 else 1 + binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1)) else binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1));havoc binomialCoefficient_#t~ret1#1;havoc binomialCoefficient_#t~ret2#1;havoc binomialCoefficient_#t~ret3#1; 38019#binomialCoefficient_returnLabel#2 main_#t~ret10#1 := binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;havoc binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1;assume { :end_inline_binomialCoefficient } true;havoc main_#t~ret10#1; 38217#L42-2 main_#t~post8#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post8#1;havoc main_#t~post8#1; 38218#L42-3 assume !!(main_~k~0#1 <= main_~x~0#1); 38043#L43 assume !(main_~k~0#1 <= main_~n~0#1);assume { :begin_inline_binomialCoefficient } true;binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1 := main_~k~0#1, main_~n~0#1;havoc binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;binomialCoefficient_~n#1 := binomialCoefficient_#in~n#1;binomialCoefficient_~k#1 := binomialCoefficient_#in~k#1; 38044#L30-5 call binomialCoefficient_#t~ret1#1 := fact(binomialCoefficient_~n#1);< 38476#$Ultimate##0 ~n := #in~n; 38529#L25 assume !(~n <= 0); 38484#L26 call #t~ret0 := fact(~n - 1);< 38493#$Ultimate##0 ~n := #in~n; 38504#L25 assume !(~n <= 0); 38487#L26 call #t~ret0 := fact(~n - 1);< 38515#$Ultimate##0 ~n := #in~n; 38504#L25 assume !(~n <= 0); 38487#L26 call #t~ret0 := fact(~n - 1);< 38515#$Ultimate##0 ~n := #in~n; 38518#L25 assume ~n <= 0;#res := 1; 38516#factFINAL assume true; 38514#factEXIT >#70#return; 38512#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 38509#factFINAL assume true; 38507#factEXIT >#70#return; 38489#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 38491#factFINAL assume true; 38482#factEXIT >#70#return; 38481#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 38480#factFINAL assume true; 38479#factEXIT >#78#return; 38472#L30-6 call binomialCoefficient_#t~ret2#1 := fact(binomialCoefficient_~k#1);< 38476#$Ultimate##0 ~n := #in~n; 38529#L25 assume !(~n <= 0); 38484#L26 call #t~ret0 := fact(~n - 1);< 38493#$Ultimate##0 ~n := #in~n; 38534#L25 assume ~n <= 0;#res := 1; 38532#factFINAL assume true; 38530#factEXIT >#70#return; 38528#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 38526#factFINAL assume true; 38524#factEXIT >#80#return; 38471#L30-7 call binomialCoefficient_#t~ret3#1 := fact(binomialCoefficient_~n#1 - binomialCoefficient_~k#1);< 38505#$Ultimate##0 ~n := #in~n; 38533#L25 assume !(~n <= 0); 38486#L26 call #t~ret0 := fact(~n - 1);< 38508#$Ultimate##0 ~n := #in~n; 38504#L25 assume !(~n <= 0); 38487#L26 call #t~ret0 := fact(~n - 1);< 38515#$Ultimate##0 ~n := #in~n; 38518#L25 assume ~n <= 0;#res := 1; 38516#factFINAL assume true; 38514#factEXIT >#70#return; 38512#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 38509#factFINAL assume true; 38507#factEXIT >#70#return; 38506#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 38475#factFINAL assume true; 38470#factEXIT >#82#return; 37999#L30-8 [2023-11-12 02:11:15,703 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:11:15,703 INFO L85 PathProgramCache]: Analyzing trace with hash 816659251, now seen corresponding path program 3 times [2023-11-12 02:11:15,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:11:15,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713284118] [2023-11-12 02:11:15,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:11:15,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:11:15,710 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:11:15,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1906433750] [2023-11-12 02:11:15,711 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-12 02:11:15,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:11:15,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:15,715 INFO L229 MonitoredProcess]: Starting monitored process 119 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:11:15,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (119)] Waiting until timeout for monitored process [2023-11-12 02:11:15,795 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2023-11-12 02:11:15,796 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2023-11-12 02:11:15,796 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:11:15,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:11:15,828 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:11:15,829 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:11:15,829 INFO L85 PathProgramCache]: Analyzing trace with hash -1925971012, now seen corresponding path program 4 times [2023-11-12 02:11:15,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:11:15,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000751922] [2023-11-12 02:11:15,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:11:15,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:11:15,834 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:11:15,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [775269173] [2023-11-12 02:11:15,834 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-12 02:11:15,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:11:15,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:15,838 INFO L229 MonitoredProcess]: Starting monitored process 120 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:11:15,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (120)] Waiting until timeout for monitored process [2023-11-12 02:11:15,910 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-12 02:11:15,911 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2023-11-12 02:11:15,911 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:11:15,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:11:15,941 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:11:15,942 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:11:15,942 INFO L85 PathProgramCache]: Analyzing trace with hash 1205731566, now seen corresponding path program 2 times [2023-11-12 02:11:15,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:11:15,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549466336] [2023-11-12 02:11:15,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:11:15,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:11:15,957 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:11:15,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1983760642] [2023-11-12 02:11:15,958 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-12 02:11:15,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:11:15,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:15,963 INFO L229 MonitoredProcess]: Starting monitored process 121 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:11:15,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (121)] Waiting until timeout for monitored process [2023-11-12 02:11:16,062 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-12 02:11:16,063 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-12 02:11:16,064 INFO L262 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-12 02:11:16,067 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:11:16,191 INFO L134 CoverageAnalysis]: Checked inductivity of 610 backedges. 371 proven. 13 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2023-11-12 02:11:16,191 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:11:16,562 INFO L134 CoverageAnalysis]: Checked inductivity of 610 backedges. 101 proven. 80 refuted. 0 times theorem prover too weak. 429 trivial. 0 not checked. [2023-11-12 02:11:16,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:11:16,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549466336] [2023-11-12 02:11:16,563 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:11:16,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1983760642] [2023-11-12 02:11:16,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1983760642] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:11:16,563 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-12 02:11:16,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 12] total 13 [2023-11-12 02:11:16,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408916615] [2023-11-12 02:11:16,563 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-12 02:11:17,195 INFO L210 LassoAnalysis]: Preferences: [2023-11-12 02:11:17,195 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-12 02:11:17,195 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-12 02:11:17,195 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-12 02:11:17,195 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-12 02:11:17,195 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:11:17,195 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-12 02:11:17,195 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-12 02:11:17,196 INFO L133 ssoRankerPreferences]: Filename of dumped script: Binomial.c_Iteration14_Loop [2023-11-12 02:11:17,196 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-12 02:11:17,196 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-12 02:11:17,197 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:11:17,200 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:11:17,205 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:11:17,208 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:11:17,211 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:11:17,214 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:11:17,217 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:11:17,220 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:11:17,223 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:11:17,226 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:11:17,229 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:11:17,231 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:11:17,234 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:11:17,333 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-12 02:11:17,334 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-12 02:11:17,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:11:17,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:17,342 INFO L229 MonitoredProcess]: Starting monitored process 122 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:11:17,344 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-12 02:11:17,344 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:11:17,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (122)] Waiting until timeout for monitored process [2023-11-12 02:11:17,367 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-12 02:11:17,367 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_binomialCoefficient_#t~ret1#1=6} Honda state: {ULTIMATE.start_binomialCoefficient_#t~ret1#1=6} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-12 02:11:17,371 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (122)] Forceful destruction successful, exit code 0 [2023-11-12 02:11:17,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:11:17,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:17,372 INFO L229 MonitoredProcess]: Starting monitored process 123 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:11:17,380 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-12 02:11:17,380 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:11:17,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (123)] Waiting until timeout for monitored process [2023-11-12 02:11:17,424 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (123)] Forceful destruction successful, exit code 0 [2023-11-12 02:11:17,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:11:17,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:17,425 INFO L229 MonitoredProcess]: Starting monitored process 124 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:11:17,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (124)] Waiting until timeout for monitored process [2023-11-12 02:11:17,428 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-12 02:11:17,429 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:11:17,457 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-12 02:11:17,464 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (124)] Forceful destruction successful, exit code 0 [2023-11-12 02:11:17,464 INFO L210 LassoAnalysis]: Preferences: [2023-11-12 02:11:17,464 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-12 02:11:17,464 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-12 02:11:17,465 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-12 02:11:17,465 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-12 02:11:17,465 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:11:17,465 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-12 02:11:17,465 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-12 02:11:17,465 INFO L133 ssoRankerPreferences]: Filename of dumped script: Binomial.c_Iteration14_Loop [2023-11-12 02:11:17,465 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-12 02:11:17,465 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-12 02:11:17,466 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:11:17,470 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:11:17,475 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:11:17,477 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:11:17,480 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:11:17,483 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:11:17,506 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:11:17,509 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:11:17,512 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:11:17,515 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:11:17,520 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:11:17,522 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:11:17,525 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:11:17,619 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-12 02:11:17,619 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-12 02:11:17,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:11:17,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:17,620 INFO L229 MonitoredProcess]: Starting monitored process 125 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:11:17,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (125)] Waiting until timeout for monitored process [2023-11-12 02:11:17,624 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 [2023-11-12 02:11:17,634 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:11:17,634 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-12 02:11:17,635 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:11:17,635 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:11:17,635 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-12 02:11:17,635 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-12 02:11:17,636 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-12 02:11:17,638 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-12 02:11:17,640 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (125)] Ended with exit code 0 [2023-11-12 02:11:17,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:11:17,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:17,642 INFO L229 MonitoredProcess]: Starting monitored process 126 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:11:17,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (126)] Waiting until timeout for monitored process [2023-11-12 02:11:17,645 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 [2023-11-12 02:11:17,655 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:11:17,656 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-12 02:11:17,656 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:11:17,656 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:11:17,656 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-12 02:11:17,657 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-12 02:11:17,657 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-12 02:11:17,660 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-12 02:11:17,662 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-12 02:11:17,662 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-12 02:11:17,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:11:17,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:17,665 INFO L229 MonitoredProcess]: Starting monitored process 127 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:11:17,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (127)] Waiting until timeout for monitored process [2023-11-12 02:11:17,668 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-12 02:11:17,668 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-12 02:11:17,668 INFO L513 LassoAnalysis]: Proved termination. [2023-11-12 02:11:17,668 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~k~0#1) = -2*ULTIMATE.start_main_~k~0#1 + 5 Supporting invariants [] [2023-11-12 02:11:17,671 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (126)] Ended with exit code 0 [2023-11-12 02:11:17,672 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-12 02:11:17,685 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:11:17,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:11:17,766 INFO L262 TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-12 02:11:17,769 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:11:18,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:11:18,197 INFO L262 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 32 conjunts are in the unsatisfiable core [2023-11-12 02:11:18,200 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:11:18,489 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 93 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2023-11-12 02:11:18,489 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 10 loop predicates [2023-11-12 02:11:18,490 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 1268 states and 2002 transitions. cyclomatic complexity: 759 Second operand has 13 states, 11 states have (on average 3.272727272727273) internal successors, (36), 11 states have internal predecessors, (36), 6 states have call successors, (12), 2 states have call predecessors, (12), 6 states have return successors, (14), 8 states have call predecessors, (14), 6 states have call successors, (14) [2023-11-12 02:11:18,883 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 1268 states and 2002 transitions. cyclomatic complexity: 759. Second operand has 13 states, 11 states have (on average 3.272727272727273) internal successors, (36), 11 states have internal predecessors, (36), 6 states have call successors, (12), 2 states have call predecessors, (12), 6 states have return successors, (14), 8 states have call predecessors, (14), 6 states have call successors, (14) Result 2564 states and 3898 transitions. Complement of second has 57 states. [2023-11-12 02:11:18,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 12 states 2 stem states 9 non-accepting loop states 1 accepting loop states [2023-11-12 02:11:18,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 11 states have (on average 3.272727272727273) internal successors, (36), 11 states have internal predecessors, (36), 6 states have call successors, (12), 2 states have call predecessors, (12), 6 states have return successors, (14), 8 states have call predecessors, (14), 6 states have call successors, (14) [2023-11-12 02:11:18,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 85 transitions. [2023-11-12 02:11:18,885 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 85 transitions. Stem has 54 letters. Loop has 56 letters. [2023-11-12 02:11:18,885 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-12 02:11:18,886 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 85 transitions. Stem has 110 letters. Loop has 56 letters. [2023-11-12 02:11:18,886 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-12 02:11:18,886 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 85 transitions. Stem has 54 letters. Loop has 112 letters. [2023-11-12 02:11:18,887 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-12 02:11:18,888 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2564 states and 3898 transitions. [2023-11-12 02:11:18,912 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 112 [2023-11-12 02:11:18,942 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2564 states to 2097 states and 3227 transitions. [2023-11-12 02:11:18,943 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 410 [2023-11-12 02:11:18,943 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 412 [2023-11-12 02:11:18,944 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2097 states and 3227 transitions. [2023-11-12 02:11:18,944 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-12 02:11:18,944 INFO L218 hiAutomatonCegarLoop]: Abstraction has 2097 states and 3227 transitions. [2023-11-12 02:11:18,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2097 states and 3227 transitions. [2023-11-12 02:11:19,023 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (127)] Forceful destruction successful, exit code 0 [2023-11-12 02:11:19,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2097 to 1874. [2023-11-12 02:11:19,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1874 states, 1139 states have (on average 1.093064091308165) internal successors, (1245), 1149 states have internal predecessors, (1245), 468 states have call successors, (489), 236 states have call predecessors, (489), 267 states have return successors, (1171), 488 states have call predecessors, (1171), 468 states have call successors, (1171) [2023-11-12 02:11:19,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1874 states to 1874 states and 2905 transitions. [2023-11-12 02:11:19,070 INFO L240 hiAutomatonCegarLoop]: Abstraction has 1874 states and 2905 transitions. [2023-11-12 02:11:19,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:11:19,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-12 02:11:19,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2023-11-12 02:11:19,071 INFO L87 Difference]: Start difference. First operand 1874 states and 2905 transitions. Second operand has 13 states, 12 states have (on average 3.5) internal successors, (42), 13 states have internal predecessors, (42), 9 states have call successors, (17), 2 states have call predecessors, (17), 5 states have return successors, (18), 7 states have call predecessors, (18), 9 states have call successors, (18) [2023-11-12 02:11:19,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:11:19,426 INFO L93 Difference]: Finished difference Result 2483 states and 4228 transitions. [2023-11-12 02:11:19,427 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2483 states and 4228 transitions. [2023-11-12 02:11:19,456 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 140 [2023-11-12 02:11:19,498 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2483 states to 2474 states and 4216 transitions. [2023-11-12 02:11:19,498 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 536 [2023-11-12 02:11:19,499 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 539 [2023-11-12 02:11:19,500 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2474 states and 4216 transitions. [2023-11-12 02:11:19,500 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-12 02:11:19,500 INFO L218 hiAutomatonCegarLoop]: Abstraction has 2474 states and 4216 transitions. [2023-11-12 02:11:19,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2474 states and 4216 transitions. [2023-11-12 02:11:19,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2474 to 2088. [2023-11-12 02:11:19,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2088 states, 1247 states have (on average 1.1002405773857258) internal successors, (1372), 1269 states have internal predecessors, (1372), 574 states have call successors, (597), 236 states have call predecessors, (597), 267 states have return successors, (1427), 582 states have call predecessors, (1427), 574 states have call successors, (1427) [2023-11-12 02:11:19,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2088 states to 2088 states and 3396 transitions. [2023-11-12 02:11:19,590 INFO L240 hiAutomatonCegarLoop]: Abstraction has 2088 states and 3396 transitions. [2023-11-12 02:11:19,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-12 02:11:19,591 INFO L428 stractBuchiCegarLoop]: Abstraction has 2088 states and 3396 transitions. [2023-11-12 02:11:19,591 INFO L335 stractBuchiCegarLoop]: ======== Iteration 15 ============ [2023-11-12 02:11:19,592 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2088 states and 3396 transitions. [2023-11-12 02:11:19,602 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 125 [2023-11-12 02:11:19,603 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-12 02:11:19,603 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-12 02:11:19,605 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [8, 8, 6, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:11:19,605 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [25, 25, 16, 16, 16, 16, 9, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:11:19,605 INFO L748 eck$LassoCheckResult]: Stem: 47366#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 47307#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~ret9#1, main_#t~ret10#1, main_#t~post8#1, main_~k~0#1, main_#t~post7#1, main_~n~0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_#t~nondet4#1;main_~x~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 47308#L35 assume !(main_~x~0#1 < 0);havoc main_#t~nondet5#1;main_~y~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 47329#L38 assume !(main_~y~0#1 < 0);havoc main_#t~nondet6#1;main_~z~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;main_~n~0#1 := 0; 47367#L41-3 assume !!(main_~n~0#1 <= main_~x~0#1);main_~k~0#1 := 0; 47526#L42-3 assume !!(main_~k~0#1 <= main_~x~0#1); 47525#L43 assume main_~k~0#1 <= main_~n~0#1;assume { :begin_inline_binomialCoefficient } true;binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1 := main_~n~0#1, main_~k~0#1;havoc binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;binomialCoefficient_~n#1 := binomialCoefficient_#in~n#1;binomialCoefficient_~k#1 := binomialCoefficient_#in~k#1; 47520#L30 call binomialCoefficient_#t~ret1#1 := fact(binomialCoefficient_~n#1);< 47521#$Ultimate##0 ~n := #in~n; 47527#L25 assume ~n <= 0;#res := 1; 47524#factFINAL assume true; 47519#factEXIT >#72#return; 47514#L30-1 call binomialCoefficient_#t~ret2#1 := fact(binomialCoefficient_~k#1);< 47515#$Ultimate##0 ~n := #in~n; 47523#L25 assume ~n <= 0;#res := 1; 47518#factFINAL assume true; 47513#factEXIT >#74#return; 47511#L30-2 call binomialCoefficient_#t~ret3#1 := fact(binomialCoefficient_~n#1 - binomialCoefficient_~k#1);< 47512#$Ultimate##0 ~n := #in~n; 47534#L25 assume ~n <= 0;#res := 1; 47532#factFINAL assume true; 47510#factEXIT >#76#return; 47508#L30-3 binomialCoefficient_#res#1 := (if binomialCoefficient_#t~ret1#1 < 0 && 0 != binomialCoefficient_#t~ret1#1 % (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) then (if binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1 < 0 then binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) - 1 else 1 + binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1)) else binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1));havoc binomialCoefficient_#t~ret1#1;havoc binomialCoefficient_#t~ret2#1;havoc binomialCoefficient_#t~ret3#1; 47504#binomialCoefficient_returnLabel#1 main_#t~ret9#1 := binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;havoc binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1;assume { :end_inline_binomialCoefficient } true;havoc main_#t~ret9#1; 47503#L42-2 main_#t~post8#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post8#1;havoc main_#t~post8#1; 47502#L42-3 assume !!(main_~k~0#1 <= main_~x~0#1); 47500#L43 assume !(main_~k~0#1 <= main_~n~0#1);assume { :begin_inline_binomialCoefficient } true;binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1 := main_~k~0#1, main_~n~0#1;havoc binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;binomialCoefficient_~n#1 := binomialCoefficient_#in~n#1;binomialCoefficient_~k#1 := binomialCoefficient_#in~k#1; 47488#L30-5 call binomialCoefficient_#t~ret1#1 := fact(binomialCoefficient_~n#1);< 47489#$Ultimate##0 ~n := #in~n; 47501#L25 assume !(~n <= 0); 47498#L26 call #t~ret0 := fact(~n - 1);< 47499#$Ultimate##0 ~n := #in~n; 47509#L25 assume ~n <= 0;#res := 1; 47507#factFINAL assume true; 47497#factEXIT >#70#return; 47495#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 47494#factFINAL assume true; 47487#factEXIT >#78#return; 47448#L30-6 call binomialCoefficient_#t~ret2#1 := fact(binomialCoefficient_~k#1);< 47449#$Ultimate##0 ~n := #in~n; 47459#L25 assume ~n <= 0;#res := 1; 47458#factFINAL assume true; 47447#factEXIT >#80#return; 47433#L30-7 call binomialCoefficient_#t~ret3#1 := fact(binomialCoefficient_~n#1 - binomialCoefficient_~k#1);< 47434#$Ultimate##0 ~n := #in~n; 47481#L25 assume !(~n <= 0); 47444#L26 call #t~ret0 := fact(~n - 1);< 47445#$Ultimate##0 ~n := #in~n; 47465#L25 assume ~n <= 0;#res := 1; 47463#factFINAL assume true; 47443#factEXIT >#70#return; 47441#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 47440#factFINAL assume true; 47432#factEXIT >#82#return; 47426#L30-8 binomialCoefficient_#res#1 := (if binomialCoefficient_#t~ret1#1 < 0 && 0 != binomialCoefficient_#t~ret1#1 % (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) then (if binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1 < 0 then binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) - 1 else 1 + binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1)) else binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1));havoc binomialCoefficient_#t~ret1#1;havoc binomialCoefficient_#t~ret2#1;havoc binomialCoefficient_#t~ret3#1; 47427#binomialCoefficient_returnLabel#2 main_#t~ret10#1 := binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;havoc binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1;assume { :end_inline_binomialCoefficient } true;havoc main_#t~ret10#1; 47981#L42-2 main_#t~post8#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post8#1;havoc main_#t~post8#1; 47372#L42-3 assume !(main_~k~0#1 <= main_~x~0#1); 47370#L42-4 [2023-11-12 02:11:19,606 INFO L750 eck$LassoCheckResult]: Loop: 47370#L42-4 havoc main_~k~0#1; 47323#L41-2 main_#t~post7#1 := main_~n~0#1;main_~n~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1; 47319#L41-3 assume !!(main_~n~0#1 <= main_~x~0#1);main_~k~0#1 := 0; 47320#L42-3 assume !!(main_~k~0#1 <= main_~x~0#1); 47956#L43 assume main_~k~0#1 <= main_~n~0#1;assume { :begin_inline_binomialCoefficient } true;binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1 := main_~n~0#1, main_~k~0#1;havoc binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;binomialCoefficient_~n#1 := binomialCoefficient_#in~n#1;binomialCoefficient_~k#1 := binomialCoefficient_#in~k#1; 47777#L30 call binomialCoefficient_#t~ret1#1 := fact(binomialCoefficient_~n#1);< 47354#$Ultimate##0 ~n := #in~n; 47860#L25 assume !(~n <= 0); 47600#L26 call #t~ret0 := fact(~n - 1);< 47626#$Ultimate##0 ~n := #in~n; 47620#L25 assume !(~n <= 0); 47611#L26 call #t~ret0 := fact(~n - 1);< 47638#$Ultimate##0 ~n := #in~n; 47620#L25 assume !(~n <= 0); 47611#L26 call #t~ret0 := fact(~n - 1);< 47638#$Ultimate##0 ~n := #in~n; 47640#L25 assume ~n <= 0;#res := 1; 47639#factFINAL assume true; 47637#factEXIT >#70#return; 47625#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 47610#factFINAL assume true; 47615#factEXIT >#70#return; 47634#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 47728#factFINAL assume true; 47661#factEXIT >#70#return; 47663#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 47838#factFINAL assume true; 47843#factEXIT >#72#return; 47353#L30-1 call binomialCoefficient_#t~ret2#1 := fact(binomialCoefficient_~k#1);< 47354#$Ultimate##0 ~n := #in~n; 47860#L25 assume ~n <= 0;#res := 1; 47855#factFINAL assume true; 47852#factEXIT >#74#return; 47842#L30-2 call binomialCoefficient_#t~ret3#1 := fact(binomialCoefficient_~n#1 - binomialCoefficient_~k#1);< 47844#$Ultimate##0 ~n := #in~n; 47848#L25 assume !(~n <= 0); 47618#L26 call #t~ret0 := fact(~n - 1);< 47621#$Ultimate##0 ~n := #in~n; 47622#L25 assume !(~n <= 0); 47613#L26 call #t~ret0 := fact(~n - 1);< 47619#$Ultimate##0 ~n := #in~n; 47620#L25 assume !(~n <= 0); 47611#L26 call #t~ret0 := fact(~n - 1);< 47638#$Ultimate##0 ~n := #in~n; 47640#L25 assume ~n <= 0;#res := 1; 47639#factFINAL assume true; 47637#factEXIT >#70#return; 47625#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 47610#factFINAL assume true; 47615#factEXIT >#70#return; 47634#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 47728#factFINAL assume true; 47661#factEXIT >#70#return; 47663#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 47838#factFINAL assume true; 47843#factEXIT >#76#return; 47783#L30-3 binomialCoefficient_#res#1 := (if binomialCoefficient_#t~ret1#1 < 0 && 0 != binomialCoefficient_#t~ret1#1 % (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) then (if binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1 < 0 then binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) - 1 else 1 + binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1)) else binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1));havoc binomialCoefficient_#t~ret1#1;havoc binomialCoefficient_#t~ret2#1;havoc binomialCoefficient_#t~ret3#1; 47872#binomialCoefficient_returnLabel#1 main_#t~ret9#1 := binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;havoc binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1;assume { :end_inline_binomialCoefficient } true;havoc main_#t~ret9#1; 47871#L42-2 main_#t~post8#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post8#1;havoc main_#t~post8#1; 47870#L42-3 assume !!(main_~k~0#1 <= main_~x~0#1); 47869#L43 assume main_~k~0#1 <= main_~n~0#1;assume { :begin_inline_binomialCoefficient } true;binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1 := main_~n~0#1, main_~k~0#1;havoc binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;binomialCoefficient_~n#1 := binomialCoefficient_#in~n#1;binomialCoefficient_~k#1 := binomialCoefficient_#in~k#1; 47771#L30 call binomialCoefficient_#t~ret1#1 := fact(binomialCoefficient_~n#1);< 47354#$Ultimate##0 ~n := #in~n; 47860#L25 assume !(~n <= 0); 47600#L26 call #t~ret0 := fact(~n - 1);< 47626#$Ultimate##0 ~n := #in~n; 47620#L25 assume !(~n <= 0); 47611#L26 call #t~ret0 := fact(~n - 1);< 47638#$Ultimate##0 ~n := #in~n; 47620#L25 assume !(~n <= 0); 47611#L26 call #t~ret0 := fact(~n - 1);< 47638#$Ultimate##0 ~n := #in~n; 47640#L25 assume ~n <= 0;#res := 1; 47639#factFINAL assume true; 47637#factEXIT >#70#return; 47625#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 47610#factFINAL assume true; 47615#factEXIT >#70#return; 47634#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 47728#factFINAL assume true; 47661#factEXIT >#70#return; 47663#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 47838#factFINAL assume true; 47843#factEXIT >#72#return; 47765#L30-1 call binomialCoefficient_#t~ret2#1 := fact(binomialCoefficient_~k#1);< 47354#$Ultimate##0 ~n := #in~n; 47860#L25 assume ~n <= 0;#res := 1; 47855#factFINAL assume true; 47852#factEXIT >#74#return; 47841#L30-2 call binomialCoefficient_#t~ret3#1 := fact(binomialCoefficient_~n#1 - binomialCoefficient_~k#1);< 47844#$Ultimate##0 ~n := #in~n; 47848#L25 assume !(~n <= 0); 47618#L26 call #t~ret0 := fact(~n - 1);< 47621#$Ultimate##0 ~n := #in~n; 47622#L25 assume !(~n <= 0); 47613#L26 call #t~ret0 := fact(~n - 1);< 47619#$Ultimate##0 ~n := #in~n; 47620#L25 assume !(~n <= 0); 47611#L26 call #t~ret0 := fact(~n - 1);< 47638#$Ultimate##0 ~n := #in~n; 47640#L25 assume ~n <= 0;#res := 1; 47639#factFINAL assume true; 47637#factEXIT >#70#return; 47625#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 47610#factFINAL assume true; 47615#factEXIT >#70#return; 47634#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 47728#factFINAL assume true; 47661#factEXIT >#70#return; 47663#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 47838#factFINAL assume true; 47843#factEXIT >#76#return; 47787#L30-3 binomialCoefficient_#res#1 := (if binomialCoefficient_#t~ret1#1 < 0 && 0 != binomialCoefficient_#t~ret1#1 % (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) then (if binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1 < 0 then binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) - 1 else 1 + binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1)) else binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1));havoc binomialCoefficient_#t~ret1#1;havoc binomialCoefficient_#t~ret2#1;havoc binomialCoefficient_#t~ret3#1; 47866#binomialCoefficient_returnLabel#1 main_#t~ret9#1 := binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;havoc binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1;assume { :end_inline_binomialCoefficient } true;havoc main_#t~ret9#1; 47859#L42-2 main_#t~post8#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post8#1;havoc main_#t~post8#1; 47857#L42-3 assume !!(main_~k~0#1 <= main_~x~0#1); 47853#L43 assume !(main_~k~0#1 <= main_~n~0#1);assume { :begin_inline_binomialCoefficient } true;binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1 := main_~k~0#1, main_~n~0#1;havoc binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;binomialCoefficient_~n#1 := binomialCoefficient_#in~n#1;binomialCoefficient_~k#1 := binomialCoefficient_#in~k#1; 47761#L30-5 call binomialCoefficient_#t~ret1#1 := fact(binomialCoefficient_~n#1);< 47354#$Ultimate##0 ~n := #in~n; 47860#L25 assume !(~n <= 0); 47600#L26 call #t~ret0 := fact(~n - 1);< 47626#$Ultimate##0 ~n := #in~n; 47620#L25 assume !(~n <= 0); 47611#L26 call #t~ret0 := fact(~n - 1);< 47638#$Ultimate##0 ~n := #in~n; 47640#L25 assume ~n <= 0;#res := 1; 47639#factFINAL assume true; 47637#factEXIT >#70#return; 47625#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 47610#factFINAL assume true; 47615#factEXIT >#70#return; 47636#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 47846#factFINAL assume true; 47760#factEXIT >#78#return; 47768#L30-6 call binomialCoefficient_#t~ret2#1 := fact(binomialCoefficient_~k#1);< 47354#$Ultimate##0 ~n := #in~n; 47860#L25 assume !(~n <= 0); 47600#L26 call #t~ret0 := fact(~n - 1);< 47626#$Ultimate##0 ~n := #in~n; 47623#L25 assume ~n <= 0;#res := 1; 47624#factFINAL assume true; 47599#factEXIT >#70#return; 47606#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 47858#factFINAL assume true; 47854#factEXIT >#80#return; 47631#L30-7 call binomialCoefficient_#t~ret3#1 := fact(binomialCoefficient_~n#1 - binomialCoefficient_~k#1);< 47847#$Ultimate##0 ~n := #in~n; 47630#L25 assume !(~n <= 0); 47600#L26 call #t~ret0 := fact(~n - 1);< 47626#$Ultimate##0 ~n := #in~n; 47623#L25 assume ~n <= 0;#res := 1; 47624#factFINAL assume true; 47599#factEXIT >#70#return; 47606#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 47858#factFINAL assume true; 47854#factEXIT >#82#return; 47784#L30-8 binomialCoefficient_#res#1 := (if binomialCoefficient_#t~ret1#1 < 0 && 0 != binomialCoefficient_#t~ret1#1 % (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) then (if binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1 < 0 then binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) - 1 else 1 + binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1)) else binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1));havoc binomialCoefficient_#t~ret1#1;havoc binomialCoefficient_#t~ret2#1;havoc binomialCoefficient_#t~ret3#1; 47874#binomialCoefficient_returnLabel#2 main_#t~ret10#1 := binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;havoc binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1;assume { :end_inline_binomialCoefficient } true;havoc main_#t~ret10#1; 47868#L42-2 main_#t~post8#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post8#1;havoc main_#t~post8#1; 47867#L42-3 assume !(main_~k~0#1 <= main_~x~0#1); 47370#L42-4 [2023-11-12 02:11:19,606 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:11:19,607 INFO L85 PathProgramCache]: Analyzing trace with hash 1417569888, now seen corresponding path program 1 times [2023-11-12 02:11:19,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:11:19,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928345437] [2023-11-12 02:11:19,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:11:19,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:11:19,614 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:11:19,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [479646031] [2023-11-12 02:11:19,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:11:19,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:11:19,615 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:19,616 INFO L229 MonitoredProcess]: Starting monitored process 128 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:11:19,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (128)] Waiting until timeout for monitored process [2023-11-12 02:11:19,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:11:19,706 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:11:19,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:11:19,746 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:11:19,746 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:11:19,746 INFO L85 PathProgramCache]: Analyzing trace with hash 792686290, now seen corresponding path program 1 times [2023-11-12 02:11:19,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:11:19,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013450370] [2023-11-12 02:11:19,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:11:19,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:11:19,762 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:11:19,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [784024686] [2023-11-12 02:11:19,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:11:19,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:11:19,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:19,764 INFO L229 MonitoredProcess]: Starting monitored process 129 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:11:19,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (129)] Waiting until timeout for monitored process [2023-11-12 02:11:19,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:11:19,893 INFO L262 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-12 02:11:19,915 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:11:19,976 INFO L134 CoverageAnalysis]: Checked inductivity of 1457 backedges. 794 proven. 2 refuted. 0 times theorem prover too weak. 661 trivial. 0 not checked. [2023-11-12 02:11:19,976 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:11:20,239 INFO L134 CoverageAnalysis]: Checked inductivity of 1457 backedges. 52 proven. 35 refuted. 0 times theorem prover too weak. 1370 trivial. 0 not checked. [2023-11-12 02:11:20,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:11:20,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013450370] [2023-11-12 02:11:20,240 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:11:20,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [784024686] [2023-11-12 02:11:20,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [784024686] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:11:20,241 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-12 02:11:20,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2023-11-12 02:11:20,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987911610] [2023-11-12 02:11:20,242 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-12 02:11:20,242 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-12 02:11:20,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:11:20,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-12 02:11:20,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-12 02:11:20,244 INFO L87 Difference]: Start difference. First operand 2088 states and 3396 transitions. cyclomatic complexity: 1339 Second operand has 8 states, 7 states have (on average 4.714285714285714) internal successors, (33), 8 states have internal predecessors, (33), 4 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2023-11-12 02:11:20,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:11:20,388 INFO L93 Difference]: Finished difference Result 2076 states and 3312 transitions. [2023-11-12 02:11:20,388 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2076 states and 3312 transitions. [2023-11-12 02:11:20,409 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 121 [2023-11-12 02:11:20,458 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2076 states to 2076 states and 3312 transitions. [2023-11-12 02:11:20,459 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 442 [2023-11-12 02:11:20,460 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 442 [2023-11-12 02:11:20,460 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2076 states and 3312 transitions. [2023-11-12 02:11:20,460 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-12 02:11:20,460 INFO L218 hiAutomatonCegarLoop]: Abstraction has 2076 states and 3312 transitions. [2023-11-12 02:11:20,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2076 states and 3312 transitions. [2023-11-12 02:11:20,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2076 to 2058. [2023-11-12 02:11:20,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2058 states, 1247 states have (on average 1.1002405773857258) internal successors, (1372), 1269 states have internal predecessors, (1372), 544 states have call successors, (567), 236 states have call predecessors, (567), 267 states have return successors, (1319), 552 states have call predecessors, (1319), 544 states have call successors, (1319) [2023-11-12 02:11:20,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2058 states to 2058 states and 3258 transitions. [2023-11-12 02:11:20,546 INFO L240 hiAutomatonCegarLoop]: Abstraction has 2058 states and 3258 transitions. [2023-11-12 02:11:20,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 02:11:20,547 INFO L428 stractBuchiCegarLoop]: Abstraction has 2058 states and 3258 transitions. [2023-11-12 02:11:20,547 INFO L335 stractBuchiCegarLoop]: ======== Iteration 16 ============ [2023-11-12 02:11:20,548 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2058 states and 3258 transitions. [2023-11-12 02:11:20,559 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 119 [2023-11-12 02:11:20,559 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-12 02:11:20,559 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-12 02:11:20,565 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [8, 8, 6, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:11:20,566 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [25, 25, 16, 16, 16, 16, 9, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:11:20,566 INFO L748 eck$LassoCheckResult]: Stem: 52493#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 52442#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~ret9#1, main_#t~ret10#1, main_#t~post8#1, main_~k~0#1, main_#t~post7#1, main_~n~0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_#t~nondet4#1;main_~x~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 52443#L35 assume !(main_~x~0#1 < 0);havoc main_#t~nondet5#1;main_~y~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 52464#L38 assume !(main_~y~0#1 < 0);havoc main_#t~nondet6#1;main_~z~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;main_~n~0#1 := 0; 52494#L41-3 assume !!(main_~n~0#1 <= main_~x~0#1);main_~k~0#1 := 0; 52648#L42-3 assume !!(main_~k~0#1 <= main_~x~0#1); 52645#L43 assume main_~k~0#1 <= main_~n~0#1;assume { :begin_inline_binomialCoefficient } true;binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1 := main_~n~0#1, main_~k~0#1;havoc binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;binomialCoefficient_~n#1 := binomialCoefficient_#in~n#1;binomialCoefficient_~k#1 := binomialCoefficient_#in~k#1; 52634#L30 call binomialCoefficient_#t~ret1#1 := fact(binomialCoefficient_~n#1);< 52635#$Ultimate##0 ~n := #in~n; 52637#L25 assume ~n <= 0;#res := 1; 52636#factFINAL assume true; 52633#factEXIT >#72#return; 52630#L30-1 call binomialCoefficient_#t~ret2#1 := fact(binomialCoefficient_~k#1);< 52631#$Ultimate##0 ~n := #in~n; 52639#L25 assume ~n <= 0;#res := 1; 52638#factFINAL assume true; 52629#factEXIT >#74#return; 52626#L30-2 call binomialCoefficient_#t~ret3#1 := fact(binomialCoefficient_~n#1 - binomialCoefficient_~k#1);< 52627#$Ultimate##0 ~n := #in~n; 52657#L25 assume ~n <= 0;#res := 1; 52651#factFINAL assume true; 52625#factEXIT >#76#return; 52621#L30-3 binomialCoefficient_#res#1 := (if binomialCoefficient_#t~ret1#1 < 0 && 0 != binomialCoefficient_#t~ret1#1 % (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) then (if binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1 < 0 then binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) - 1 else 1 + binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1)) else binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1));havoc binomialCoefficient_#t~ret1#1;havoc binomialCoefficient_#t~ret2#1;havoc binomialCoefficient_#t~ret3#1; 52609#binomialCoefficient_returnLabel#1 main_#t~ret9#1 := binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;havoc binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1;assume { :end_inline_binomialCoefficient } true;havoc main_#t~ret9#1; 52608#L42-2 main_#t~post8#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post8#1;havoc main_#t~post8#1; 52607#L42-3 assume !!(main_~k~0#1 <= main_~x~0#1); 52603#L43 assume !(main_~k~0#1 <= main_~n~0#1);assume { :begin_inline_binomialCoefficient } true;binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1 := main_~k~0#1, main_~n~0#1;havoc binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;binomialCoefficient_~n#1 := binomialCoefficient_#in~n#1;binomialCoefficient_~k#1 := binomialCoefficient_#in~k#1; 52601#L30-5 call binomialCoefficient_#t~ret1#1 := fact(binomialCoefficient_~n#1);< 52602#$Ultimate##0 ~n := #in~n; 52643#L25 assume !(~n <= 0); 52617#L26 call #t~ret0 := fact(~n - 1);< 52618#$Ultimate##0 ~n := #in~n; 52623#L25 assume ~n <= 0;#res := 1; 52619#factFINAL assume true; 52616#factEXIT >#70#return; 52615#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 52613#factFINAL assume true; 52600#factEXIT >#78#return; 52572#L30-6 call binomialCoefficient_#t~ret2#1 := fact(binomialCoefficient_~k#1);< 52573#$Ultimate##0 ~n := #in~n; 52583#L25 assume ~n <= 0;#res := 1; 52582#factFINAL assume true; 52571#factEXIT >#80#return; 52557#L30-7 call binomialCoefficient_#t~ret3#1 := fact(binomialCoefficient_~n#1 - binomialCoefficient_~k#1);< 52558#$Ultimate##0 ~n := #in~n; 52594#L25 assume !(~n <= 0); 52568#L26 call #t~ret0 := fact(~n - 1);< 52569#$Ultimate##0 ~n := #in~n; 52589#L25 assume ~n <= 0;#res := 1; 52587#factFINAL assume true; 52567#factEXIT >#70#return; 52565#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 52564#factFINAL assume true; 52556#factEXIT >#82#return; 52551#L30-8 binomialCoefficient_#res#1 := (if binomialCoefficient_#t~ret1#1 < 0 && 0 != binomialCoefficient_#t~ret1#1 % (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) then (if binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1 < 0 then binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) - 1 else 1 + binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1)) else binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1));havoc binomialCoefficient_#t~ret1#1;havoc binomialCoefficient_#t~ret2#1;havoc binomialCoefficient_#t~ret3#1; 52514#binomialCoefficient_returnLabel#2 main_#t~ret10#1 := binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;havoc binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1;assume { :end_inline_binomialCoefficient } true;havoc main_#t~ret10#1; 52513#L42-2 main_#t~post8#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post8#1;havoc main_#t~post8#1; 52503#L42-3 assume !(main_~k~0#1 <= main_~x~0#1); 52498#L42-4 [2023-11-12 02:11:20,567 INFO L750 eck$LassoCheckResult]: Loop: 52498#L42-4 havoc main_~k~0#1; 52461#L41-2 main_#t~post7#1 := main_~n~0#1;main_~n~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1; 52453#L41-3 assume !!(main_~n~0#1 <= main_~x~0#1);main_~k~0#1 := 0; 52454#L42-3 assume !!(main_~k~0#1 <= main_~x~0#1); 53012#L43 assume main_~k~0#1 <= main_~n~0#1;assume { :begin_inline_binomialCoefficient } true;binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1 := main_~n~0#1, main_~k~0#1;havoc binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;binomialCoefficient_~n#1 := binomialCoefficient_#in~n#1;binomialCoefficient_~k#1 := binomialCoefficient_#in~k#1; 52982#L30 call binomialCoefficient_#t~ret1#1 := fact(binomialCoefficient_~n#1);< 52485#$Ultimate##0 ~n := #in~n; 53055#L25 assume !(~n <= 0); 52759#L26 call #t~ret0 := fact(~n - 1);< 53054#$Ultimate##0 ~n := #in~n; 52781#L25 assume !(~n <= 0); 52761#L26 call #t~ret0 := fact(~n - 1);< 52779#$Ultimate##0 ~n := #in~n; 52781#L25 assume !(~n <= 0); 52761#L26 call #t~ret0 := fact(~n - 1);< 52779#$Ultimate##0 ~n := #in~n; 52783#L25 assume ~n <= 0;#res := 1; 52782#factFINAL assume true; 52778#factEXIT >#70#return; 52777#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 52772#factFINAL assume true; 52758#factEXIT >#70#return; 52769#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 53035#factFINAL assume true; 53026#factEXIT >#70#return; 53024#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 53015#factFINAL assume true; 53018#factEXIT >#72#return; 52484#L30-1 call binomialCoefficient_#t~ret2#1 := fact(binomialCoefficient_~k#1);< 52485#$Ultimate##0 ~n := #in~n; 53055#L25 assume ~n <= 0;#res := 1; 53039#factFINAL assume true; 53033#factEXIT >#74#return; 53016#L30-2 call binomialCoefficient_#t~ret3#1 := fact(binomialCoefficient_~n#1 - binomialCoefficient_~k#1);< 53019#$Ultimate##0 ~n := #in~n; 53030#L25 assume !(~n <= 0); 52775#L26 call #t~ret0 := fact(~n - 1);< 52785#$Ultimate##0 ~n := #in~n; 52784#L25 assume !(~n <= 0); 52766#L26 call #t~ret0 := fact(~n - 1);< 52776#$Ultimate##0 ~n := #in~n; 52781#L25 assume !(~n <= 0); 52761#L26 call #t~ret0 := fact(~n - 1);< 52779#$Ultimate##0 ~n := #in~n; 52783#L25 assume ~n <= 0;#res := 1; 52782#factFINAL assume true; 52778#factEXIT >#70#return; 52777#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 52772#factFINAL assume true; 52758#factEXIT >#70#return; 52769#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 53035#factFINAL assume true; 53026#factEXIT >#70#return; 53024#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 53015#factFINAL assume true; 53018#factEXIT >#76#return; 53010#L30-3 binomialCoefficient_#res#1 := (if binomialCoefficient_#t~ret1#1 < 0 && 0 != binomialCoefficient_#t~ret1#1 % (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) then (if binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1 < 0 then binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) - 1 else 1 + binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1)) else binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1));havoc binomialCoefficient_#t~ret1#1;havoc binomialCoefficient_#t~ret2#1;havoc binomialCoefficient_#t~ret3#1; 53040#binomialCoefficient_returnLabel#1 main_#t~ret9#1 := binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;havoc binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1;assume { :end_inline_binomialCoefficient } true;havoc main_#t~ret9#1; 53038#L42-2 main_#t~post8#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post8#1;havoc main_#t~post8#1; 53037#L42-3 assume !!(main_~k~0#1 <= main_~x~0#1); 53036#L43 assume main_~k~0#1 <= main_~n~0#1;assume { :begin_inline_binomialCoefficient } true;binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1 := main_~n~0#1, main_~k~0#1;havoc binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;binomialCoefficient_~n#1 := binomialCoefficient_#in~n#1;binomialCoefficient_~k#1 := binomialCoefficient_#in~k#1; 52993#L30 call binomialCoefficient_#t~ret1#1 := fact(binomialCoefficient_~n#1);< 52485#$Ultimate##0 ~n := #in~n; 53055#L25 assume !(~n <= 0); 52759#L26 call #t~ret0 := fact(~n - 1);< 53054#$Ultimate##0 ~n := #in~n; 52781#L25 assume !(~n <= 0); 52761#L26 call #t~ret0 := fact(~n - 1);< 52779#$Ultimate##0 ~n := #in~n; 52781#L25 assume !(~n <= 0); 52761#L26 call #t~ret0 := fact(~n - 1);< 52779#$Ultimate##0 ~n := #in~n; 52783#L25 assume ~n <= 0;#res := 1; 52782#factFINAL assume true; 52778#factEXIT >#70#return; 52777#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 52772#factFINAL assume true; 52758#factEXIT >#70#return; 52769#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 53035#factFINAL assume true; 53026#factEXIT >#70#return; 53024#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 53015#factFINAL assume true; 53018#factEXIT >#72#return; 52999#L30-1 call binomialCoefficient_#t~ret2#1 := fact(binomialCoefficient_~k#1);< 52485#$Ultimate##0 ~n := #in~n; 53055#L25 assume !(~n <= 0); 52759#L26 call #t~ret0 := fact(~n - 1);< 53054#$Ultimate##0 ~n := #in~n; 53060#L25 assume ~n <= 0;#res := 1; 53057#factFINAL assume true; 53050#factEXIT >#70#return; 53048#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 53046#factFINAL assume true; 53032#factEXIT >#74#return; 52995#L30-2 call binomialCoefficient_#t~ret3#1 := fact(binomialCoefficient_~n#1 - binomialCoefficient_~k#1);< 53021#$Ultimate##0 ~n := #in~n; 53059#L25 assume !(~n <= 0); 52760#L26 call #t~ret0 := fact(~n - 1);< 52771#$Ultimate##0 ~n := #in~n; 52781#L25 assume !(~n <= 0); 52761#L26 call #t~ret0 := fact(~n - 1);< 52779#$Ultimate##0 ~n := #in~n; 52783#L25 assume ~n <= 0;#res := 1; 52782#factFINAL assume true; 52778#factEXIT >#70#return; 52777#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 52772#factFINAL assume true; 52758#factEXIT >#70#return; 52768#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 53020#factFINAL assume true; 52981#factEXIT >#76#return; 53007#L30-3 binomialCoefficient_#res#1 := (if binomialCoefficient_#t~ret1#1 < 0 && 0 != binomialCoefficient_#t~ret1#1 % (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) then (if binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1 < 0 then binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) - 1 else 1 + binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1)) else binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1));havoc binomialCoefficient_#t~ret1#1;havoc binomialCoefficient_#t~ret2#1;havoc binomialCoefficient_#t~ret3#1; 53031#binomialCoefficient_returnLabel#1 main_#t~ret9#1 := binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;havoc binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1;assume { :end_inline_binomialCoefficient } true;havoc main_#t~ret9#1; 53029#L42-2 main_#t~post8#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post8#1;havoc main_#t~post8#1; 53025#L42-3 assume !!(main_~k~0#1 <= main_~x~0#1); 53023#L43 assume !(main_~k~0#1 <= main_~n~0#1);assume { :begin_inline_binomialCoefficient } true;binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1 := main_~k~0#1, main_~n~0#1;havoc binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;binomialCoefficient_~n#1 := binomialCoefficient_#in~n#1;binomialCoefficient_~k#1 := binomialCoefficient_#in~k#1; 52984#L30-5 call binomialCoefficient_#t~ret1#1 := fact(binomialCoefficient_~n#1);< 52485#$Ultimate##0 ~n := #in~n; 53055#L25 assume !(~n <= 0); 52759#L26 call #t~ret0 := fact(~n - 1);< 53054#$Ultimate##0 ~n := #in~n; 52781#L25 assume !(~n <= 0); 52761#L26 call #t~ret0 := fact(~n - 1);< 52779#$Ultimate##0 ~n := #in~n; 52783#L25 assume ~n <= 0;#res := 1; 52782#factFINAL assume true; 52778#factEXIT >#70#return; 52777#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 52772#factFINAL assume true; 52758#factEXIT >#70#return; 52768#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 53020#factFINAL assume true; 52981#factEXIT >#78#return; 52987#L30-6 call binomialCoefficient_#t~ret2#1 := fact(binomialCoefficient_~k#1);< 52485#$Ultimate##0 ~n := #in~n; 53055#L25 assume !(~n <= 0); 52759#L26 call #t~ret0 := fact(~n - 1);< 53054#$Ultimate##0 ~n := #in~n; 53060#L25 assume ~n <= 0;#res := 1; 53057#factFINAL assume true; 53050#factEXIT >#70#return; 53048#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 53046#factFINAL assume true; 53032#factEXIT >#80#return; 52994#L30-7 call binomialCoefficient_#t~ret3#1 := fact(binomialCoefficient_~n#1 - binomialCoefficient_~k#1);< 53047#$Ultimate##0 ~n := #in~n; 53056#L25 assume !(~n <= 0); 52759#L26 call #t~ret0 := fact(~n - 1);< 53054#$Ultimate##0 ~n := #in~n; 53060#L25 assume ~n <= 0;#res := 1; 53057#factFINAL assume true; 53050#factEXIT >#70#return; 53048#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 53046#factFINAL assume true; 53032#factEXIT >#82#return; 53009#L30-8 binomialCoefficient_#res#1 := (if binomialCoefficient_#t~ret1#1 < 0 && 0 != binomialCoefficient_#t~ret1#1 % (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) then (if binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1 < 0 then binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) - 1 else 1 + binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1)) else binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1));havoc binomialCoefficient_#t~ret1#1;havoc binomialCoefficient_#t~ret2#1;havoc binomialCoefficient_#t~ret3#1; 53045#binomialCoefficient_returnLabel#2 main_#t~ret10#1 := binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;havoc binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1;assume { :end_inline_binomialCoefficient } true;havoc main_#t~ret10#1; 53044#L42-2 main_#t~post8#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post8#1;havoc main_#t~post8#1; 53042#L42-3 assume !(main_~k~0#1 <= main_~x~0#1); 52498#L42-4 [2023-11-12 02:11:20,567 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:11:20,567 INFO L85 PathProgramCache]: Analyzing trace with hash 1417569888, now seen corresponding path program 2 times [2023-11-12 02:11:20,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:11:20,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473110087] [2023-11-12 02:11:20,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:11:20,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:11:20,575 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:11:20,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1252044466] [2023-11-12 02:11:20,575 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-12 02:11:20,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:11:20,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:20,579 INFO L229 MonitoredProcess]: Starting monitored process 130 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:11:20,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (130)] Waiting until timeout for monitored process [2023-11-12 02:11:20,664 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-12 02:11:20,664 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2023-11-12 02:11:20,664 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:11:20,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:11:20,702 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:11:20,702 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:11:20,703 INFO L85 PathProgramCache]: Analyzing trace with hash 755601170, now seen corresponding path program 2 times [2023-11-12 02:11:20,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:11:20,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901456408] [2023-11-12 02:11:20,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:11:20,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:11:20,717 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:11:20,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [580370416] [2023-11-12 02:11:20,718 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-12 02:11:20,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:11:20,719 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:20,723 INFO L229 MonitoredProcess]: Starting monitored process 131 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:11:20,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (131)] Waiting until timeout for monitored process [2023-11-12 02:11:20,837 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-12 02:11:20,837 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-12 02:11:20,839 INFO L262 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-12 02:11:20,843 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:11:21,007 INFO L134 CoverageAnalysis]: Checked inductivity of 1457 backedges. 620 proven. 197 refuted. 0 times theorem prover too weak. 640 trivial. 0 not checked. [2023-11-12 02:11:21,007 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:11:21,545 INFO L134 CoverageAnalysis]: Checked inductivity of 1457 backedges. 20 proven. 288 refuted. 0 times theorem prover too weak. 1149 trivial. 0 not checked. [2023-11-12 02:11:21,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:11:21,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901456408] [2023-11-12 02:11:21,546 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:11:21,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [580370416] [2023-11-12 02:11:21,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [580370416] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:11:21,546 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-12 02:11:21,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 13] total 19 [2023-11-12 02:11:21,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376605739] [2023-11-12 02:11:21,546 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-12 02:11:21,547 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-12 02:11:21,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:11:21,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-12 02:11:21,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=271, Unknown=0, NotChecked=0, Total=342 [2023-11-12 02:11:21,548 INFO L87 Difference]: Start difference. First operand 2058 states and 3258 transitions. cyclomatic complexity: 1231 Second operand has 19 states, 17 states have (on average 3.3529411764705883) internal successors, (57), 19 states have internal predecessors, (57), 12 states have call successors, (24), 2 states have call predecessors, (24), 5 states have return successors, (25), 9 states have call predecessors, (25), 12 states have call successors, (25) [2023-11-12 02:11:22,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:11:22,424 INFO L93 Difference]: Finished difference Result 2471 states and 4055 transitions. [2023-11-12 02:11:22,424 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2471 states and 4055 transitions. [2023-11-12 02:11:22,448 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 160 [2023-11-12 02:11:22,479 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2471 states to 2471 states and 4055 transitions. [2023-11-12 02:11:22,479 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 554 [2023-11-12 02:11:22,480 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 554 [2023-11-12 02:11:22,480 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2471 states and 4055 transitions. [2023-11-12 02:11:22,481 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-12 02:11:22,481 INFO L218 hiAutomatonCegarLoop]: Abstraction has 2471 states and 4055 transitions. [2023-11-12 02:11:22,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2471 states and 4055 transitions. [2023-11-12 02:11:22,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2471 to 2182. [2023-11-12 02:11:22,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2182 states, 1322 states have (on average 1.083963691376702) internal successors, (1433), 1330 states have internal predecessors, (1433), 593 states have call successors, (616), 236 states have call predecessors, (616), 267 states have return successors, (1478), 615 states have call predecessors, (1478), 593 states have call successors, (1478) [2023-11-12 02:11:22,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2182 states to 2182 states and 3527 transitions. [2023-11-12 02:11:22,560 INFO L240 hiAutomatonCegarLoop]: Abstraction has 2182 states and 3527 transitions. [2023-11-12 02:11:22,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-11-12 02:11:22,561 INFO L428 stractBuchiCegarLoop]: Abstraction has 2182 states and 3527 transitions. [2023-11-12 02:11:22,561 INFO L335 stractBuchiCegarLoop]: ======== Iteration 17 ============ [2023-11-12 02:11:22,561 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2182 states and 3527 transitions. [2023-11-12 02:11:22,572 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 135 [2023-11-12 02:11:22,572 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-12 02:11:22,572 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-12 02:11:22,574 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [8, 8, 6, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:11:22,574 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [33, 33, 21, 21, 21, 21, 12, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:11:22,575 INFO L748 eck$LassoCheckResult]: Stem: 58027#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 57976#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~ret9#1, main_#t~ret10#1, main_#t~post8#1, main_~k~0#1, main_#t~post7#1, main_~n~0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_#t~nondet4#1;main_~x~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 57977#L35 assume !(main_~x~0#1 < 0);havoc main_#t~nondet5#1;main_~y~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 57997#L38 assume !(main_~y~0#1 < 0);havoc main_#t~nondet6#1;main_~z~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;main_~n~0#1 := 0; 58028#L41-3 assume !!(main_~n~0#1 <= main_~x~0#1);main_~k~0#1 := 0; 58145#L42-3 assume !!(main_~k~0#1 <= main_~x~0#1); 58142#L43 assume main_~k~0#1 <= main_~n~0#1;assume { :begin_inline_binomialCoefficient } true;binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1 := main_~n~0#1, main_~k~0#1;havoc binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;binomialCoefficient_~n#1 := binomialCoefficient_#in~n#1;binomialCoefficient_~k#1 := binomialCoefficient_#in~k#1; 58138#L30 call binomialCoefficient_#t~ret1#1 := fact(binomialCoefficient_~n#1);< 58139#$Ultimate##0 ~n := #in~n; 58143#L25 assume ~n <= 0;#res := 1; 58141#factFINAL assume true; 58137#factEXIT >#72#return; 58084#L30-1 call binomialCoefficient_#t~ret2#1 := fact(binomialCoefficient_~k#1);< 58086#$Ultimate##0 ~n := #in~n; 58089#L25 assume ~n <= 0;#res := 1; 58088#factFINAL assume true; 58083#factEXIT >#74#return; 58081#L30-2 call binomialCoefficient_#t~ret3#1 := fact(binomialCoefficient_~n#1 - binomialCoefficient_~k#1);< 58082#$Ultimate##0 ~n := #in~n; 58154#L25 assume ~n <= 0;#res := 1; 58153#factFINAL assume true; 58080#factEXIT >#76#return; 58077#L30-3 binomialCoefficient_#res#1 := (if binomialCoefficient_#t~ret1#1 < 0 && 0 != binomialCoefficient_#t~ret1#1 % (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) then (if binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1 < 0 then binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) - 1 else 1 + binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1)) else binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1));havoc binomialCoefficient_#t~ret1#1;havoc binomialCoefficient_#t~ret2#1;havoc binomialCoefficient_#t~ret3#1; 58076#binomialCoefficient_returnLabel#1 main_#t~ret9#1 := binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;havoc binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1;assume { :end_inline_binomialCoefficient } true;havoc main_#t~ret9#1; 58075#L42-2 main_#t~post8#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post8#1;havoc main_#t~post8#1; 58073#L42-3 assume !!(main_~k~0#1 <= main_~x~0#1); 58068#L43 assume !(main_~k~0#1 <= main_~n~0#1);assume { :begin_inline_binomialCoefficient } true;binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1 := main_~k~0#1, main_~n~0#1;havoc binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;binomialCoefficient_~n#1 := binomialCoefficient_#in~n#1;binomialCoefficient_~k#1 := binomialCoefficient_#in~k#1; 58060#L30-5 call binomialCoefficient_#t~ret1#1 := fact(binomialCoefficient_~n#1);< 58061#$Ultimate##0 ~n := #in~n; 58074#L25 assume !(~n <= 0); 58071#L26 call #t~ret0 := fact(~n - 1);< 58072#$Ultimate##0 ~n := #in~n; 58087#L25 assume ~n <= 0;#res := 1; 58079#factFINAL assume true; 58070#factEXIT >#70#return; 58067#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 58066#factFINAL assume true; 58059#factEXIT >#78#return; 58054#L30-6 call binomialCoefficient_#t~ret2#1 := fact(binomialCoefficient_~k#1);< 58055#$Ultimate##0 ~n := #in~n; 58065#L25 assume ~n <= 0;#res := 1; 58058#factFINAL assume true; 58053#factEXIT >#80#return; 58050#L30-7 call binomialCoefficient_#t~ret3#1 := fact(binomialCoefficient_~n#1 - binomialCoefficient_~k#1);< 58051#$Ultimate##0 ~n := #in~n; 58136#L25 assume !(~n <= 0); 58063#L26 call #t~ret0 := fact(~n - 1);< 58064#$Ultimate##0 ~n := #in~n; 58078#L25 assume ~n <= 0;#res := 1; 58069#factFINAL assume true; 58062#factEXIT >#70#return; 58057#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 58052#factFINAL assume true; 58049#factEXIT >#82#return; 58045#L30-8 binomialCoefficient_#res#1 := (if binomialCoefficient_#t~ret1#1 < 0 && 0 != binomialCoefficient_#t~ret1#1 % (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) then (if binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1 < 0 then binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) - 1 else 1 + binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1)) else binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1));havoc binomialCoefficient_#t~ret1#1;havoc binomialCoefficient_#t~ret2#1;havoc binomialCoefficient_#t~ret3#1; 58046#binomialCoefficient_returnLabel#2 main_#t~ret10#1 := binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;havoc binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1;assume { :end_inline_binomialCoefficient } true;havoc main_#t~ret10#1; 58182#L42-2 main_#t~post8#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post8#1;havoc main_#t~post8#1; 58034#L42-3 assume !(main_~k~0#1 <= main_~x~0#1); 58032#L42-4 [2023-11-12 02:11:22,575 INFO L750 eck$LassoCheckResult]: Loop: 58032#L42-4 havoc main_~k~0#1; 57995#L41-2 main_#t~post7#1 := main_~n~0#1;main_~n~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1; 57987#L41-3 assume !!(main_~n~0#1 <= main_~x~0#1);main_~k~0#1 := 0; 57988#L42-3 assume !!(main_~k~0#1 <= main_~x~0#1); 58470#L43 assume main_~k~0#1 <= main_~n~0#1;assume { :begin_inline_binomialCoefficient } true;binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1 := main_~n~0#1, main_~k~0#1;havoc binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;binomialCoefficient_~n#1 := binomialCoefficient_#in~n#1;binomialCoefficient_~k#1 := binomialCoefficient_#in~k#1; 58106#L30 call binomialCoefficient_#t~ret1#1 := fact(binomialCoefficient_~n#1);< 58171#$Ultimate##0 ~n := #in~n; 58608#L25 assume !(~n <= 0); 58280#L26 call #t~ret0 := fact(~n - 1);< 58284#$Ultimate##0 ~n := #in~n; 58324#L25 assume !(~n <= 0); 58501#L26 call #t~ret0 := fact(~n - 1);< 58546#$Ultimate##0 ~n := #in~n; 58549#L25 assume ~n <= 0;#res := 1; 58548#factFINAL assume true; 58545#factEXIT >#70#return; 58543#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 58535#factFINAL assume true; 58511#factEXIT >#70#return; 58510#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 58491#factFINAL assume true; 58465#factEXIT >#72#return; 58105#L30-1 call binomialCoefficient_#t~ret2#1 := fact(binomialCoefficient_~k#1);< 58171#$Ultimate##0 ~n := #in~n; 58608#L25 assume ~n <= 0;#res := 1; 58219#factFINAL assume true; 58223#factEXIT >#74#return; 58466#L30-2 call binomialCoefficient_#t~ret3#1 := fact(binomialCoefficient_~n#1 - binomialCoefficient_~k#1);< 58478#$Ultimate##0 ~n := #in~n; 58515#L25 assume !(~n <= 0); 58495#L26 call #t~ret0 := fact(~n - 1);< 58514#$Ultimate##0 ~n := #in~n; 58324#L25 assume !(~n <= 0); 58501#L26 call #t~ret0 := fact(~n - 1);< 58546#$Ultimate##0 ~n := #in~n; 58549#L25 assume ~n <= 0;#res := 1; 58548#factFINAL assume true; 58545#factEXIT >#70#return; 58543#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 58535#factFINAL assume true; 58511#factEXIT >#70#return; 58510#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 58491#factFINAL assume true; 58465#factEXIT >#76#return; 58467#L30-3 binomialCoefficient_#res#1 := (if binomialCoefficient_#t~ret1#1 < 0 && 0 != binomialCoefficient_#t~ret1#1 % (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) then (if binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1 < 0 then binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) - 1 else 1 + binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1)) else binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1));havoc binomialCoefficient_#t~ret1#1;havoc binomialCoefficient_#t~ret2#1;havoc binomialCoefficient_#t~ret3#1; 59056#binomialCoefficient_returnLabel#1 main_#t~ret9#1 := binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;havoc binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1;assume { :end_inline_binomialCoefficient } true;havoc main_#t~ret9#1; 59057#L42-2 main_#t~post8#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post8#1;havoc main_#t~post8#1; 59052#L42-3 assume !!(main_~k~0#1 <= main_~x~0#1); 59053#L43 assume main_~k~0#1 <= main_~n~0#1;assume { :begin_inline_binomialCoefficient } true;binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1 := main_~n~0#1, main_~k~0#1;havoc binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;binomialCoefficient_~n#1 := binomialCoefficient_#in~n#1;binomialCoefficient_~k#1 := binomialCoefficient_#in~k#1; 58112#L30 call binomialCoefficient_#t~ret1#1 := fact(binomialCoefficient_~n#1);< 58171#$Ultimate##0 ~n := #in~n; 58608#L25 assume !(~n <= 0); 58280#L26 call #t~ret0 := fact(~n - 1);< 58284#$Ultimate##0 ~n := #in~n; 58324#L25 assume !(~n <= 0); 58501#L26 call #t~ret0 := fact(~n - 1);< 58546#$Ultimate##0 ~n := #in~n; 58549#L25 assume ~n <= 0;#res := 1; 58548#factFINAL assume true; 58545#factEXIT >#70#return; 58543#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 58535#factFINAL assume true; 58511#factEXIT >#70#return; 58510#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 58491#factFINAL assume true; 58465#factEXIT >#72#return; 58095#L30-1 call binomialCoefficient_#t~ret2#1 := fact(binomialCoefficient_~k#1);< 58171#$Ultimate##0 ~n := #in~n; 58608#L25 assume !(~n <= 0); 58280#L26 call #t~ret0 := fact(~n - 1);< 58284#$Ultimate##0 ~n := #in~n; 58324#L25 assume !(~n <= 0); 58501#L26 call #t~ret0 := fact(~n - 1);< 58546#$Ultimate##0 ~n := #in~n; 58549#L25 assume ~n <= 0;#res := 1; 58548#factFINAL assume true; 58545#factEXIT >#70#return; 58543#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 58535#factFINAL assume true; 58511#factEXIT >#70#return; 58510#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 58491#factFINAL assume true; 58465#factEXIT >#74#return; 58220#L30-2 call binomialCoefficient_#t~ret3#1 := fact(binomialCoefficient_~n#1 - binomialCoefficient_~k#1);< 58224#$Ultimate##0 ~n := #in~n; 58607#L25 assume ~n <= 0;#res := 1; 58219#factFINAL assume true; 58223#factEXIT >#76#return; 58114#L30-3 binomialCoefficient_#res#1 := (if binomialCoefficient_#t~ret1#1 < 0 && 0 != binomialCoefficient_#t~ret1#1 % (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) then (if binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1 < 0 then binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) - 1 else 1 + binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1)) else binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1));havoc binomialCoefficient_#t~ret1#1;havoc binomialCoefficient_#t~ret2#1;havoc binomialCoefficient_#t~ret3#1; 59032#binomialCoefficient_returnLabel#1 main_#t~ret9#1 := binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;havoc binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1;assume { :end_inline_binomialCoefficient } true;havoc main_#t~ret9#1; 58662#L42-2 main_#t~post8#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post8#1;havoc main_#t~post8#1; 58659#L42-3 assume !!(main_~k~0#1 <= main_~x~0#1); 58487#L43 assume main_~k~0#1 <= main_~n~0#1;assume { :begin_inline_binomialCoefficient } true;binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1 := main_~n~0#1, main_~k~0#1;havoc binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;binomialCoefficient_~n#1 := binomialCoefficient_#in~n#1;binomialCoefficient_~k#1 := binomialCoefficient_#in~k#1; 58092#L30 call binomialCoefficient_#t~ret1#1 := fact(binomialCoefficient_~n#1);< 58171#$Ultimate##0 ~n := #in~n; 58608#L25 assume !(~n <= 0); 58280#L26 call #t~ret0 := fact(~n - 1);< 58284#$Ultimate##0 ~n := #in~n; 58324#L25 assume !(~n <= 0); 58501#L26 call #t~ret0 := fact(~n - 1);< 58546#$Ultimate##0 ~n := #in~n; 58324#L25 assume !(~n <= 0); 58501#L26 call #t~ret0 := fact(~n - 1);< 58546#$Ultimate##0 ~n := #in~n; 58549#L25 assume ~n <= 0;#res := 1; 58548#factFINAL assume true; 58545#factEXIT >#70#return; 58543#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 58535#factFINAL assume true; 58511#factEXIT >#70#return; 58506#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 58711#factFINAL assume true; 58494#factEXIT >#70#return; 58492#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 58473#factFINAL assume true; 58476#factEXIT >#72#return; 58108#L30-1 call binomialCoefficient_#t~ret2#1 := fact(binomialCoefficient_~k#1);< 58171#$Ultimate##0 ~n := #in~n; 58608#L25 assume !(~n <= 0); 58280#L26 call #t~ret0 := fact(~n - 1);< 58284#$Ultimate##0 ~n := #in~n; 58324#L25 assume !(~n <= 0); 58501#L26 call #t~ret0 := fact(~n - 1);< 58546#$Ultimate##0 ~n := #in~n; 58549#L25 assume ~n <= 0;#res := 1; 58548#factFINAL assume true; 58545#factEXIT >#70#return; 58543#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 58535#factFINAL assume true; 58511#factEXIT >#70#return; 58510#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 58491#factFINAL assume true; 58465#factEXIT >#74#return; 58113#L30-2 call binomialCoefficient_#t~ret3#1 := fact(binomialCoefficient_~n#1 - binomialCoefficient_~k#1);< 58171#$Ultimate##0 ~n := #in~n; 58608#L25 assume !(~n <= 0); 58280#L26 call #t~ret0 := fact(~n - 1);< 58284#$Ultimate##0 ~n := #in~n; 58324#L25 assume !(~n <= 0); 58501#L26 call #t~ret0 := fact(~n - 1);< 58546#$Ultimate##0 ~n := #in~n; 58549#L25 assume ~n <= 0;#res := 1; 58548#factFINAL assume true; 58545#factEXIT >#70#return; 58543#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 58535#factFINAL assume true; 58511#factEXIT >#70#return; 58510#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 58491#factFINAL assume true; 58465#factEXIT >#76#return; 58120#L30-3 binomialCoefficient_#res#1 := (if binomialCoefficient_#t~ret1#1 < 0 && 0 != binomialCoefficient_#t~ret1#1 % (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) then (if binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1 < 0 then binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) - 1 else 1 + binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1)) else binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1));havoc binomialCoefficient_#t~ret1#1;havoc binomialCoefficient_#t~ret2#1;havoc binomialCoefficient_#t~ret3#1; 58509#binomialCoefficient_returnLabel#1 main_#t~ret9#1 := binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;havoc binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1;assume { :end_inline_binomialCoefficient } true;havoc main_#t~ret9#1; 58486#L42-2 main_#t~post8#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post8#1;havoc main_#t~post8#1; 58485#L42-3 assume !!(main_~k~0#1 <= main_~x~0#1); 58484#L43 assume !(main_~k~0#1 <= main_~n~0#1);assume { :begin_inline_binomialCoefficient } true;binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1 := main_~k~0#1, main_~n~0#1;havoc binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;binomialCoefficient_~n#1 := binomialCoefficient_#in~n#1;binomialCoefficient_~k#1 := binomialCoefficient_#in~k#1; 58102#L30-5 call binomialCoefficient_#t~ret1#1 := fact(binomialCoefficient_~n#1);< 58171#$Ultimate##0 ~n := #in~n; 58608#L25 assume !(~n <= 0); 58280#L26 call #t~ret0 := fact(~n - 1);< 58284#$Ultimate##0 ~n := #in~n; 58324#L25 assume !(~n <= 0); 58501#L26 call #t~ret0 := fact(~n - 1);< 58546#$Ultimate##0 ~n := #in~n; 58324#L25 assume !(~n <= 0); 58501#L26 call #t~ret0 := fact(~n - 1);< 58546#$Ultimate##0 ~n := #in~n; 58549#L25 assume ~n <= 0;#res := 1; 58548#factFINAL assume true; 58545#factEXIT >#70#return; 58543#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 58535#factFINAL assume true; 58511#factEXIT >#70#return; 58506#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 58711#factFINAL assume true; 58494#factEXIT >#70#return; 58492#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 58473#factFINAL assume true; 58476#factEXIT >#78#return; 58097#L30-6 call binomialCoefficient_#t~ret2#1 := fact(binomialCoefficient_~k#1);< 58171#$Ultimate##0 ~n := #in~n; 58608#L25 assume !(~n <= 0); 58280#L26 call #t~ret0 := fact(~n - 1);< 58284#$Ultimate##0 ~n := #in~n; 58324#L25 assume !(~n <= 0); 58501#L26 call #t~ret0 := fact(~n - 1);< 58546#$Ultimate##0 ~n := #in~n; 58549#L25 assume ~n <= 0;#res := 1; 58548#factFINAL assume true; 58545#factEXIT >#70#return; 58543#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 58535#factFINAL assume true; 58511#factEXIT >#70#return; 58510#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 58491#factFINAL assume true; 58465#factEXIT >#80#return; 58111#L30-7 call binomialCoefficient_#t~ret3#1 := fact(binomialCoefficient_~n#1 - binomialCoefficient_~k#1);< 58121#$Ultimate##0 ~n := #in~n; 58547#L25 assume !(~n <= 0); 58280#L26 call #t~ret0 := fact(~n - 1);< 58284#$Ultimate##0 ~n := #in~n; 58321#L25 assume ~n <= 0;#res := 1; 58286#factFINAL assume true; 58276#factEXIT >#70#return; 58283#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 58170#factFINAL assume true; 58090#factEXIT >#82#return; 58048#L30-8 binomialCoefficient_#res#1 := (if binomialCoefficient_#t~ret1#1 < 0 && 0 != binomialCoefficient_#t~ret1#1 % (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) then (if binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1 < 0 then binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) - 1 else 1 + binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1)) else binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1));havoc binomialCoefficient_#t~ret1#1;havoc binomialCoefficient_#t~ret2#1;havoc binomialCoefficient_#t~ret3#1; 58041#binomialCoefficient_returnLabel#2 main_#t~ret10#1 := binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;havoc binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1;assume { :end_inline_binomialCoefficient } true;havoc main_#t~ret10#1; 58042#L42-2 main_#t~post8#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post8#1;havoc main_#t~post8#1; 58508#L42-3 assume !(main_~k~0#1 <= main_~x~0#1); 58032#L42-4 [2023-11-12 02:11:22,576 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:11:22,576 INFO L85 PathProgramCache]: Analyzing trace with hash 1417569888, now seen corresponding path program 3 times [2023-11-12 02:11:22,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:11:22,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468025012] [2023-11-12 02:11:22,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:11:22,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:11:22,582 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:11:22,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [253004372] [2023-11-12 02:11:22,583 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-12 02:11:22,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:11:22,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:22,587 INFO L229 MonitoredProcess]: Starting monitored process 132 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:11:22,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (132)] Waiting until timeout for monitored process [2023-11-12 02:11:22,676 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2023-11-12 02:11:22,676 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2023-11-12 02:11:22,676 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:11:22,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:11:22,712 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:11:22,713 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:11:22,713 INFO L85 PathProgramCache]: Analyzing trace with hash -1362815223, now seen corresponding path program 3 times [2023-11-12 02:11:22,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:11:22,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534832922] [2023-11-12 02:11:22,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:11:22,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:11:22,725 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:11:22,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1896461731] [2023-11-12 02:11:22,725 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-12 02:11:22,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:11:22,726 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:22,729 INFO L229 MonitoredProcess]: Starting monitored process 133 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:11:22,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (133)] Waiting until timeout for monitored process [2023-11-12 02:11:22,864 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2023-11-12 02:11:22,865 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-12 02:11:22,867 INFO L262 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-12 02:11:22,880 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:11:22,970 INFO L134 CoverageAnalysis]: Checked inductivity of 2569 backedges. 1163 proven. 3 refuted. 0 times theorem prover too weak. 1403 trivial. 0 not checked. [2023-11-12 02:11:22,970 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:11:23,264 INFO L134 CoverageAnalysis]: Checked inductivity of 2569 backedges. 119 proven. 42 refuted. 0 times theorem prover too weak. 2408 trivial. 0 not checked. [2023-11-12 02:11:23,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:11:23,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534832922] [2023-11-12 02:11:23,265 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:11:23,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1896461731] [2023-11-12 02:11:23,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1896461731] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:11:23,265 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-12 02:11:23,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2023-11-12 02:11:23,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767161081] [2023-11-12 02:11:23,266 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-12 02:11:23,267 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-12 02:11:23,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:11:23,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-12 02:11:23,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-11-12 02:11:23,268 INFO L87 Difference]: Start difference. First operand 2182 states and 3527 transitions. cyclomatic complexity: 1376 Second operand has 9 states, 7 states have (on average 5.0) internal successors, (35), 9 states have internal predecessors, (35), 5 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (18), 6 states have call predecessors, (18), 5 states have call successors, (18) [2023-11-12 02:11:23,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:11:23,482 INFO L93 Difference]: Finished difference Result 2398 states and 3740 transitions. [2023-11-12 02:11:23,482 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2398 states and 3740 transitions. [2023-11-12 02:11:23,514 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 160 [2023-11-12 02:11:23,554 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2398 states to 2332 states and 3665 transitions. [2023-11-12 02:11:23,554 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 531 [2023-11-12 02:11:23,556 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 531 [2023-11-12 02:11:23,556 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2332 states and 3665 transitions. [2023-11-12 02:11:23,556 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-12 02:11:23,556 INFO L218 hiAutomatonCegarLoop]: Abstraction has 2332 states and 3665 transitions. [2023-11-12 02:11:23,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2332 states and 3665 transitions. [2023-11-12 02:11:23,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2332 to 2143. [2023-11-12 02:11:23,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2143 states, 1307 states have (on average 1.0780413159908186) internal successors, (1409), 1309 states have internal predecessors, (1409), 578 states have call successors, (601), 230 states have call predecessors, (601), 258 states have return successors, (1448), 603 states have call predecessors, (1448), 578 states have call successors, (1448) [2023-11-12 02:11:23,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2143 states to 2143 states and 3458 transitions. [2023-11-12 02:11:23,640 INFO L240 hiAutomatonCegarLoop]: Abstraction has 2143 states and 3458 transitions. [2023-11-12 02:11:23,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-12 02:11:23,641 INFO L428 stractBuchiCegarLoop]: Abstraction has 2143 states and 3458 transitions. [2023-11-12 02:11:23,642 INFO L335 stractBuchiCegarLoop]: ======== Iteration 18 ============ [2023-11-12 02:11:23,642 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2143 states and 3458 transitions. [2023-11-12 02:11:23,653 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 144 [2023-11-12 02:11:23,654 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-12 02:11:23,654 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-12 02:11:23,655 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [8, 8, 6, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:11:23,655 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [30, 30, 18, 18, 18, 18, 12, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:11:23,656 INFO L748 eck$LassoCheckResult]: Stem: 63881#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 63828#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~ret9#1, main_#t~ret10#1, main_#t~post8#1, main_~k~0#1, main_#t~post7#1, main_~n~0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_#t~nondet4#1;main_~x~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 63829#L35 assume !(main_~x~0#1 < 0);havoc main_#t~nondet5#1;main_~y~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 63850#L38 assume !(main_~y~0#1 < 0);havoc main_#t~nondet6#1;main_~z~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;main_~n~0#1 := 0; 63882#L41-3 assume !!(main_~n~0#1 <= main_~x~0#1);main_~k~0#1 := 0; 63992#L42-3 assume !!(main_~k~0#1 <= main_~x~0#1); 63990#L43 assume main_~k~0#1 <= main_~n~0#1;assume { :begin_inline_binomialCoefficient } true;binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1 := main_~n~0#1, main_~k~0#1;havoc binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;binomialCoefficient_~n#1 := binomialCoefficient_#in~n#1;binomialCoefficient_~k#1 := binomialCoefficient_#in~k#1; 63987#L30 call binomialCoefficient_#t~ret1#1 := fact(binomialCoefficient_~n#1);< 63988#$Ultimate##0 ~n := #in~n; 63999#L25 assume ~n <= 0;#res := 1; 63997#factFINAL assume true; 63986#factEXIT >#72#return; 63938#L30-1 call binomialCoefficient_#t~ret2#1 := fact(binomialCoefficient_~k#1);< 63940#$Ultimate##0 ~n := #in~n; 63943#L25 assume ~n <= 0;#res := 1; 63942#factFINAL assume true; 63937#factEXIT >#74#return; 63935#L30-2 call binomialCoefficient_#t~ret3#1 := fact(binomialCoefficient_~n#1 - binomialCoefficient_~k#1);< 63936#$Ultimate##0 ~n := #in~n; 63945#L25 assume ~n <= 0;#res := 1; 63944#factFINAL assume true; 63934#factEXIT >#76#return; 63931#L30-3 binomialCoefficient_#res#1 := (if binomialCoefficient_#t~ret1#1 < 0 && 0 != binomialCoefficient_#t~ret1#1 % (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) then (if binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1 < 0 then binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) - 1 else 1 + binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1)) else binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1));havoc binomialCoefficient_#t~ret1#1;havoc binomialCoefficient_#t~ret2#1;havoc binomialCoefficient_#t~ret3#1; 63930#binomialCoefficient_returnLabel#1 main_#t~ret9#1 := binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;havoc binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1;assume { :end_inline_binomialCoefficient } true;havoc main_#t~ret9#1; 63929#L42-2 main_#t~post8#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post8#1;havoc main_#t~post8#1; 63927#L42-3 assume !!(main_~k~0#1 <= main_~x~0#1); 63922#L43 assume !(main_~k~0#1 <= main_~n~0#1);assume { :begin_inline_binomialCoefficient } true;binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1 := main_~k~0#1, main_~n~0#1;havoc binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;binomialCoefficient_~n#1 := binomialCoefficient_#in~n#1;binomialCoefficient_~k#1 := binomialCoefficient_#in~k#1; 63914#L30-5 call binomialCoefficient_#t~ret1#1 := fact(binomialCoefficient_~n#1);< 63915#$Ultimate##0 ~n := #in~n; 63928#L25 assume !(~n <= 0); 63925#L26 call #t~ret0 := fact(~n - 1);< 63926#$Ultimate##0 ~n := #in~n; 63941#L25 assume ~n <= 0;#res := 1; 63933#factFINAL assume true; 63924#factEXIT >#70#return; 63921#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 63920#factFINAL assume true; 63913#factEXIT >#78#return; 63908#L30-6 call binomialCoefficient_#t~ret2#1 := fact(binomialCoefficient_~k#1);< 63909#$Ultimate##0 ~n := #in~n; 63919#L25 assume ~n <= 0;#res := 1; 63912#factFINAL assume true; 63907#factEXIT >#80#return; 63904#L30-7 call binomialCoefficient_#t~ret3#1 := fact(binomialCoefficient_~n#1 - binomialCoefficient_~k#1);< 63905#$Ultimate##0 ~n := #in~n; 63985#L25 assume !(~n <= 0); 63917#L26 call #t~ret0 := fact(~n - 1);< 63918#$Ultimate##0 ~n := #in~n; 63932#L25 assume ~n <= 0;#res := 1; 63923#factFINAL assume true; 63916#factEXIT >#70#return; 63911#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 63906#factFINAL assume true; 63903#factEXIT >#82#return; 63900#L30-8 binomialCoefficient_#res#1 := (if binomialCoefficient_#t~ret1#1 < 0 && 0 != binomialCoefficient_#t~ret1#1 % (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) then (if binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1 < 0 then binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) - 1 else 1 + binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1)) else binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1));havoc binomialCoefficient_#t~ret1#1;havoc binomialCoefficient_#t~ret2#1;havoc binomialCoefficient_#t~ret3#1; 63901#binomialCoefficient_returnLabel#2 main_#t~ret10#1 := binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;havoc binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1;assume { :end_inline_binomialCoefficient } true;havoc main_#t~ret10#1; 64052#L42-2 main_#t~post8#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post8#1;havoc main_#t~post8#1; 63890#L42-3 assume !(main_~k~0#1 <= main_~x~0#1); 63886#L42-4 [2023-11-12 02:11:23,656 INFO L750 eck$LassoCheckResult]: Loop: 63886#L42-4 havoc main_~k~0#1; 63847#L41-2 main_#t~post7#1 := main_~n~0#1;main_~n~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1; 63839#L41-3 assume !!(main_~n~0#1 <= main_~x~0#1);main_~k~0#1 := 0; 63840#L42-3 assume !!(main_~k~0#1 <= main_~x~0#1); 64417#L43 assume main_~k~0#1 <= main_~n~0#1;assume { :begin_inline_binomialCoefficient } true;binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1 := main_~n~0#1, main_~k~0#1;havoc binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;binomialCoefficient_~n#1 := binomialCoefficient_#in~n#1;binomialCoefficient_~k#1 := binomialCoefficient_#in~k#1; 63956#L30 call binomialCoefficient_#t~ret1#1 := fact(binomialCoefficient_~n#1);< 64003#$Ultimate##0 ~n := #in~n; 64324#L25 assume !(~n <= 0); 64111#L26 call #t~ret0 := fact(~n - 1);< 64117#$Ultimate##0 ~n := #in~n; 64183#L25 assume !(~n <= 0); 64164#L26 call #t~ret0 := fact(~n - 1);< 64182#$Ultimate##0 ~n := #in~n; 64249#L25 assume ~n <= 0;#res := 1; 64247#factFINAL assume true; 64181#factEXIT >#70#return; 64179#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 64171#factFINAL assume true; 64160#factEXIT >#70#return; 64166#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 64326#factFINAL assume true; 64270#factEXIT >#72#return; 63960#L30-1 call binomialCoefficient_#t~ret2#1 := fact(binomialCoefficient_~k#1);< 64003#$Ultimate##0 ~n := #in~n; 64324#L25 assume ~n <= 0;#res := 1; 64094#factFINAL assume true; 64056#factEXIT >#74#return; 64061#L30-2 call binomialCoefficient_#t~ret3#1 := fact(binomialCoefficient_~n#1 - binomialCoefficient_~k#1);< 64321#$Ultimate##0 ~n := #in~n; 64319#L25 assume !(~n <= 0); 64162#L26 call #t~ret0 := fact(~n - 1);< 64170#$Ultimate##0 ~n := #in~n; 64183#L25 assume !(~n <= 0); 64164#L26 call #t~ret0 := fact(~n - 1);< 64182#$Ultimate##0 ~n := #in~n; 64183#L25 assume !(~n <= 0); 64164#L26 call #t~ret0 := fact(~n - 1);< 64182#$Ultimate##0 ~n := #in~n; 64249#L25 assume ~n <= 0;#res := 1; 64247#factFINAL assume true; 64181#factEXIT >#70#return; 64179#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 64171#factFINAL assume true; 64160#factEXIT >#70#return; 64169#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 64243#factFINAL assume true; 64226#factEXIT >#70#return; 64227#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 64313#factFINAL assume true; 64266#factEXIT >#76#return; 64267#L30-3 binomialCoefficient_#res#1 := (if binomialCoefficient_#t~ret1#1 < 0 && 0 != binomialCoefficient_#t~ret1#1 % (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) then (if binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1 < 0 then binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) - 1 else 1 + binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1)) else binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1));havoc binomialCoefficient_#t~ret1#1;havoc binomialCoefficient_#t~ret2#1;havoc binomialCoefficient_#t~ret3#1; 64867#binomialCoefficient_returnLabel#1 main_#t~ret9#1 := binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;havoc binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1;assume { :end_inline_binomialCoefficient } true;havoc main_#t~ret9#1; 64866#L42-2 main_#t~post8#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post8#1;havoc main_#t~post8#1; 64864#L42-3 assume !!(main_~k~0#1 <= main_~x~0#1); 64863#L43 assume main_~k~0#1 <= main_~n~0#1;assume { :begin_inline_binomialCoefficient } true;binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1 := main_~n~0#1, main_~k~0#1;havoc binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;binomialCoefficient_~n#1 := binomialCoefficient_#in~n#1;binomialCoefficient_~k#1 := binomialCoefficient_#in~k#1; 63951#L30 call binomialCoefficient_#t~ret1#1 := fact(binomialCoefficient_~n#1);< 64003#$Ultimate##0 ~n := #in~n; 64324#L25 assume !(~n <= 0); 64111#L26 call #t~ret0 := fact(~n - 1);< 64117#$Ultimate##0 ~n := #in~n; 64183#L25 assume !(~n <= 0); 64164#L26 call #t~ret0 := fact(~n - 1);< 64182#$Ultimate##0 ~n := #in~n; 64249#L25 assume ~n <= 0;#res := 1; 64247#factFINAL assume true; 64181#factEXIT >#70#return; 64179#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 64171#factFINAL assume true; 64160#factEXIT >#70#return; 64166#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 64326#factFINAL assume true; 64270#factEXIT >#72#return; 63947#L30-1 call binomialCoefficient_#t~ret2#1 := fact(binomialCoefficient_~k#1);< 64003#$Ultimate##0 ~n := #in~n; 64324#L25 assume !(~n <= 0); 64111#L26 call #t~ret0 := fact(~n - 1);< 64117#$Ultimate##0 ~n := #in~n; 64180#L25 assume ~n <= 0;#res := 1; 64120#factFINAL assume true; 64110#factEXIT >#70#return; 64045#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 64002#factFINAL assume true; 63946#factEXIT >#74#return; 63968#L30-2 call binomialCoefficient_#t~ret3#1 := fact(binomialCoefficient_~n#1 - binomialCoefficient_~k#1);< 64003#$Ultimate##0 ~n := #in~n; 64324#L25 assume ~n <= 0;#res := 1; 64094#factFINAL assume true; 64056#factEXIT >#76#return; 63974#L30-3 binomialCoefficient_#res#1 := (if binomialCoefficient_#t~ret1#1 < 0 && 0 != binomialCoefficient_#t~ret1#1 % (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) then (if binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1 < 0 then binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) - 1 else 1 + binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1)) else binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1));havoc binomialCoefficient_#t~ret1#1;havoc binomialCoefficient_#t~ret2#1;havoc binomialCoefficient_#t~ret3#1; 64862#binomialCoefficient_returnLabel#1 main_#t~ret9#1 := binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;havoc binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1;assume { :end_inline_binomialCoefficient } true;havoc main_#t~ret9#1; 64860#L42-2 main_#t~post8#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post8#1;havoc main_#t~post8#1; 64858#L42-3 assume !!(main_~k~0#1 <= main_~x~0#1); 64333#L43 assume main_~k~0#1 <= main_~n~0#1;assume { :begin_inline_binomialCoefficient } true;binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1 := main_~n~0#1, main_~k~0#1;havoc binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;binomialCoefficient_~n#1 := binomialCoefficient_#in~n#1;binomialCoefficient_~k#1 := binomialCoefficient_#in~k#1; 63966#L30 call binomialCoefficient_#t~ret1#1 := fact(binomialCoefficient_~n#1);< 64003#$Ultimate##0 ~n := #in~n; 64324#L25 assume !(~n <= 0); 64111#L26 call #t~ret0 := fact(~n - 1);< 64117#$Ultimate##0 ~n := #in~n; 64183#L25 assume !(~n <= 0); 64164#L26 call #t~ret0 := fact(~n - 1);< 64182#$Ultimate##0 ~n := #in~n; 64249#L25 assume ~n <= 0;#res := 1; 64247#factFINAL assume true; 64181#factEXIT >#70#return; 64179#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 64171#factFINAL assume true; 64160#factEXIT >#70#return; 64166#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 64326#factFINAL assume true; 64270#factEXIT >#72#return; 63964#L30-1 call binomialCoefficient_#t~ret2#1 := fact(binomialCoefficient_~k#1);< 64003#$Ultimate##0 ~n := #in~n; 64324#L25 assume !(~n <= 0); 64111#L26 call #t~ret0 := fact(~n - 1);< 64117#$Ultimate##0 ~n := #in~n; 64180#L25 assume ~n <= 0;#res := 1; 64120#factFINAL assume true; 64110#factEXIT >#70#return; 64045#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 64002#factFINAL assume true; 63946#factEXIT >#74#return; 63961#L30-2 call binomialCoefficient_#t~ret3#1 := fact(binomialCoefficient_~n#1 - binomialCoefficient_~k#1);< 64003#$Ultimate##0 ~n := #in~n; 64324#L25 assume ~n <= 0;#res := 1; 64094#factFINAL assume true; 64056#factEXIT >#76#return; 64062#L30-3 binomialCoefficient_#res#1 := (if binomialCoefficient_#t~ret1#1 < 0 && 0 != binomialCoefficient_#t~ret1#1 % (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) then (if binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1 < 0 then binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) - 1 else 1 + binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1)) else binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1));havoc binomialCoefficient_#t~ret1#1;havoc binomialCoefficient_#t~ret2#1;havoc binomialCoefficient_#t~ret3#1; 64320#binomialCoefficient_returnLabel#1 main_#t~ret9#1 := binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;havoc binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1;assume { :end_inline_binomialCoefficient } true;havoc main_#t~ret9#1; 64318#L42-2 main_#t~post8#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post8#1;havoc main_#t~post8#1; 64317#L42-3 assume !!(main_~k~0#1 <= main_~x~0#1); 64316#L43 assume !(main_~k~0#1 <= main_~n~0#1);assume { :begin_inline_binomialCoefficient } true;binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1 := main_~k~0#1, main_~n~0#1;havoc binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;binomialCoefficient_~n#1 := binomialCoefficient_#in~n#1;binomialCoefficient_~k#1 := binomialCoefficient_#in~k#1; 63958#L30-5 call binomialCoefficient_#t~ret1#1 := fact(binomialCoefficient_~n#1);< 64003#$Ultimate##0 ~n := #in~n; 64324#L25 assume !(~n <= 0); 64111#L26 call #t~ret0 := fact(~n - 1);< 64117#$Ultimate##0 ~n := #in~n; 64183#L25 assume !(~n <= 0); 64164#L26 call #t~ret0 := fact(~n - 1);< 64182#$Ultimate##0 ~n := #in~n; 64183#L25 assume !(~n <= 0); 64164#L26 call #t~ret0 := fact(~n - 1);< 64182#$Ultimate##0 ~n := #in~n; 64249#L25 assume ~n <= 0;#res := 1; 64247#factFINAL assume true; 64181#factEXIT >#70#return; 64179#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 64171#factFINAL assume true; 64160#factEXIT >#70#return; 64169#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 64243#factFINAL assume true; 64226#factEXIT >#70#return; 64227#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 64313#factFINAL assume true; 64266#factEXIT >#78#return; 63954#L30-6 call binomialCoefficient_#t~ret2#1 := fact(binomialCoefficient_~k#1);< 64003#$Ultimate##0 ~n := #in~n; 64324#L25 assume !(~n <= 0); 64111#L26 call #t~ret0 := fact(~n - 1);< 64117#$Ultimate##0 ~n := #in~n; 64183#L25 assume !(~n <= 0); 64164#L26 call #t~ret0 := fact(~n - 1);< 64182#$Ultimate##0 ~n := #in~n; 64183#L25 assume !(~n <= 0); 64164#L26 call #t~ret0 := fact(~n - 1);< 64182#$Ultimate##0 ~n := #in~n; 64249#L25 assume ~n <= 0;#res := 1; 64247#factFINAL assume true; 64181#factEXIT >#70#return; 64179#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 64171#factFINAL assume true; 64160#factEXIT >#70#return; 64169#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 64243#factFINAL assume true; 64226#factEXIT >#70#return; 64227#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 64313#factFINAL assume true; 64266#factEXIT >#80#return; 63962#L30-7 call binomialCoefficient_#t~ret3#1 := fact(binomialCoefficient_~n#1 - binomialCoefficient_~k#1);< 63975#$Ultimate##0 ~n := #in~n; 64323#L25 assume !(~n <= 0); 64111#L26 call #t~ret0 := fact(~n - 1);< 64117#$Ultimate##0 ~n := #in~n; 64180#L25 assume ~n <= 0;#res := 1; 64120#factFINAL assume true; 64110#factEXIT >#70#return; 64045#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 64002#factFINAL assume true; 63946#factEXIT >#82#return; 63899#L30-8 binomialCoefficient_#res#1 := (if binomialCoefficient_#t~ret1#1 < 0 && 0 != binomialCoefficient_#t~ret1#1 % (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) then (if binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1 < 0 then binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) - 1 else 1 + binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1)) else binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1));havoc binomialCoefficient_#t~ret1#1;havoc binomialCoefficient_#t~ret2#1;havoc binomialCoefficient_#t~ret3#1; 63896#binomialCoefficient_returnLabel#2 main_#t~ret10#1 := binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;havoc binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1;assume { :end_inline_binomialCoefficient } true;havoc main_#t~ret10#1; 63893#L42-2 main_#t~post8#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post8#1;havoc main_#t~post8#1; 63894#L42-3 assume !(main_~k~0#1 <= main_~x~0#1); 63886#L42-4 [2023-11-12 02:11:23,657 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:11:23,657 INFO L85 PathProgramCache]: Analyzing trace with hash 1417569888, now seen corresponding path program 4 times [2023-11-12 02:11:23,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:11:23,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979469737] [2023-11-12 02:11:23,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:11:23,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:11:23,664 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:11:23,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [99046943] [2023-11-12 02:11:23,664 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-12 02:11:23,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:11:23,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:23,668 INFO L229 MonitoredProcess]: Starting monitored process 134 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:11:23,689 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (134)] Waiting until timeout for monitored process [2023-11-12 02:11:23,767 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-12 02:11:23,767 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2023-11-12 02:11:23,767 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:11:23,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:11:23,807 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:11:23,807 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:11:23,807 INFO L85 PathProgramCache]: Analyzing trace with hash 1270737545, now seen corresponding path program 4 times [2023-11-12 02:11:23,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:11:23,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802826512] [2023-11-12 02:11:23,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:11:23,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:11:23,819 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:11:23,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1181993039] [2023-11-12 02:11:23,820 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-12 02:11:23,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:11:23,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:23,826 INFO L229 MonitoredProcess]: Starting monitored process 135 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:11:23,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (135)] Waiting until timeout for monitored process [2023-11-12 02:11:23,960 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-12 02:11:23,961 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-12 02:11:23,963 INFO L262 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-12 02:11:23,968 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:11:24,124 INFO L134 CoverageAnalysis]: Checked inductivity of 2083 backedges. 871 proven. 69 refuted. 0 times theorem prover too weak. 1143 trivial. 0 not checked. [2023-11-12 02:11:24,124 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:11:24,903 INFO L134 CoverageAnalysis]: Checked inductivity of 2083 backedges. 37 proven. 603 refuted. 0 times theorem prover too weak. 1443 trivial. 0 not checked. [2023-11-12 02:11:24,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:11:24,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802826512] [2023-11-12 02:11:24,904 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:11:24,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1181993039] [2023-11-12 02:11:24,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1181993039] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:11:24,904 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-12 02:11:24,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 17] total 20 [2023-11-12 02:11:24,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498244491] [2023-11-12 02:11:24,905 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-12 02:11:24,906 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-12 02:11:24,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:11:24,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-12 02:11:24,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=317, Unknown=0, NotChecked=0, Total=380 [2023-11-12 02:11:24,907 INFO L87 Difference]: Start difference. First operand 2143 states and 3458 transitions. cyclomatic complexity: 1343 Second operand has 20 states, 17 states have (on average 3.1176470588235294) internal successors, (53), 18 states have internal predecessors, (53), 12 states have call successors, (26), 2 states have call predecessors, (26), 8 states have return successors, (29), 9 states have call predecessors, (29), 12 states have call successors, (29) [2023-11-12 02:11:25,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:11:25,691 INFO L93 Difference]: Finished difference Result 2570 states and 4080 transitions. [2023-11-12 02:11:25,692 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2570 states and 4080 transitions. [2023-11-12 02:11:25,716 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 200 [2023-11-12 02:11:25,748 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2570 states to 2566 states and 4076 transitions. [2023-11-12 02:11:25,748 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 571 [2023-11-12 02:11:25,749 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 574 [2023-11-12 02:11:25,749 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2566 states and 4076 transitions. [2023-11-12 02:11:25,750 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-12 02:11:25,750 INFO L218 hiAutomatonCegarLoop]: Abstraction has 2566 states and 4076 transitions. [2023-11-12 02:11:25,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2566 states and 4076 transitions. [2023-11-12 02:11:25,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2566 to 2222. [2023-11-12 02:11:25,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2222 states, 1346 states have (on average 1.0854383358098068) internal successors, (1461), 1341 states have internal predecessors, (1461), 618 states have call successors, (641), 253 states have call predecessors, (641), 258 states have return successors, (1530), 627 states have call predecessors, (1530), 618 states have call successors, (1530) [2023-11-12 02:11:25,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2222 states to 2222 states and 3632 transitions. [2023-11-12 02:11:25,831 INFO L240 hiAutomatonCegarLoop]: Abstraction has 2222 states and 3632 transitions. [2023-11-12 02:11:25,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-12 02:11:25,832 INFO L428 stractBuchiCegarLoop]: Abstraction has 2222 states and 3632 transitions. [2023-11-12 02:11:25,832 INFO L335 stractBuchiCegarLoop]: ======== Iteration 19 ============ [2023-11-12 02:11:25,833 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2222 states and 3632 transitions. [2023-11-12 02:11:25,844 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 149 [2023-11-12 02:11:25,844 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-12 02:11:25,844 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-12 02:11:25,846 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [8, 8, 6, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:11:25,846 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [29, 29, 17, 17, 17, 17, 12, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:11:25,846 INFO L748 eck$LassoCheckResult]: Stem: 69792#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 69733#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~ret9#1, main_#t~ret10#1, main_#t~post8#1, main_~k~0#1, main_#t~post7#1, main_~n~0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_#t~nondet4#1;main_~x~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 69734#L35 assume !(main_~x~0#1 < 0);havoc main_#t~nondet5#1;main_~y~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 69754#L38 assume !(main_~y~0#1 < 0);havoc main_#t~nondet6#1;main_~z~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;main_~n~0#1 := 0; 69793#L41-3 assume !!(main_~n~0#1 <= main_~x~0#1);main_~k~0#1 := 0; 69922#L42-3 assume !!(main_~k~0#1 <= main_~x~0#1); 69920#L43 assume main_~k~0#1 <= main_~n~0#1;assume { :begin_inline_binomialCoefficient } true;binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1 := main_~n~0#1, main_~k~0#1;havoc binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;binomialCoefficient_~n#1 := binomialCoefficient_#in~n#1;binomialCoefficient_~k#1 := binomialCoefficient_#in~k#1; 69918#L30 call binomialCoefficient_#t~ret1#1 := fact(binomialCoefficient_~n#1);< 69919#$Ultimate##0 ~n := #in~n; 69938#L25 assume ~n <= 0;#res := 1; 69935#factFINAL assume true; 69917#factEXIT >#72#return; 69857#L30-1 call binomialCoefficient_#t~ret2#1 := fact(binomialCoefficient_~k#1);< 69858#$Ultimate##0 ~n := #in~n; 69862#L25 assume ~n <= 0;#res := 1; 69861#factFINAL assume true; 69856#factEXIT >#74#return; 69854#L30-2 call binomialCoefficient_#t~ret3#1 := fact(binomialCoefficient_~n#1 - binomialCoefficient_~k#1);< 69855#$Ultimate##0 ~n := #in~n; 69864#L25 assume ~n <= 0;#res := 1; 69863#factFINAL assume true; 69853#factEXIT >#76#return; 69850#L30-3 binomialCoefficient_#res#1 := (if binomialCoefficient_#t~ret1#1 < 0 && 0 != binomialCoefficient_#t~ret1#1 % (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) then (if binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1 < 0 then binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) - 1 else 1 + binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1)) else binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1));havoc binomialCoefficient_#t~ret1#1;havoc binomialCoefficient_#t~ret2#1;havoc binomialCoefficient_#t~ret3#1; 69849#binomialCoefficient_returnLabel#1 main_#t~ret9#1 := binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;havoc binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1;assume { :end_inline_binomialCoefficient } true;havoc main_#t~ret9#1; 69848#L42-2 main_#t~post8#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post8#1;havoc main_#t~post8#1; 69846#L42-3 assume !!(main_~k~0#1 <= main_~x~0#1); 69841#L43 assume !(main_~k~0#1 <= main_~n~0#1);assume { :begin_inline_binomialCoefficient } true;binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1 := main_~k~0#1, main_~n~0#1;havoc binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;binomialCoefficient_~n#1 := binomialCoefficient_#in~n#1;binomialCoefficient_~k#1 := binomialCoefficient_#in~k#1; 69833#L30-5 call binomialCoefficient_#t~ret1#1 := fact(binomialCoefficient_~n#1);< 69834#$Ultimate##0 ~n := #in~n; 69847#L25 assume !(~n <= 0); 69844#L26 call #t~ret0 := fact(~n - 1);< 69845#$Ultimate##0 ~n := #in~n; 69860#L25 assume ~n <= 0;#res := 1; 69852#factFINAL assume true; 69843#factEXIT >#70#return; 69840#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 69839#factFINAL assume true; 69832#factEXIT >#78#return; 69827#L30-6 call binomialCoefficient_#t~ret2#1 := fact(binomialCoefficient_~k#1);< 69829#$Ultimate##0 ~n := #in~n; 69838#L25 assume ~n <= 0;#res := 1; 69831#factFINAL assume true; 69826#factEXIT >#80#return; 69823#L30-7 call binomialCoefficient_#t~ret3#1 := fact(binomialCoefficient_~n#1 - binomialCoefficient_~k#1);< 69824#$Ultimate##0 ~n := #in~n; 69912#L25 assume !(~n <= 0); 69836#L26 call #t~ret0 := fact(~n - 1);< 69837#$Ultimate##0 ~n := #in~n; 69851#L25 assume ~n <= 0;#res := 1; 69842#factFINAL assume true; 69835#factEXIT >#70#return; 69830#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 69825#factFINAL assume true; 69822#factEXIT >#82#return; 69819#L30-8 binomialCoefficient_#res#1 := (if binomialCoefficient_#t~ret1#1 < 0 && 0 != binomialCoefficient_#t~ret1#1 % (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) then (if binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1 < 0 then binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) - 1 else 1 + binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1)) else binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1));havoc binomialCoefficient_#t~ret1#1;havoc binomialCoefficient_#t~ret2#1;havoc binomialCoefficient_#t~ret3#1; 69820#binomialCoefficient_returnLabel#2 main_#t~ret10#1 := binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;havoc binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1;assume { :end_inline_binomialCoefficient } true;havoc main_#t~ret10#1; 69977#L42-2 main_#t~post8#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post8#1;havoc main_#t~post8#1; 69801#L42-3 assume !(main_~k~0#1 <= main_~x~0#1); 69798#L42-4 [2023-11-12 02:11:25,847 INFO L750 eck$LassoCheckResult]: Loop: 69798#L42-4 havoc main_~k~0#1; 69752#L41-2 main_#t~post7#1 := main_~n~0#1;main_~n~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1; 69744#L41-3 assume !!(main_~n~0#1 <= main_~x~0#1);main_~k~0#1 := 0; 69745#L42-3 assume !!(main_~k~0#1 <= main_~x~0#1); 70209#L43 assume main_~k~0#1 <= main_~n~0#1;assume { :begin_inline_binomialCoefficient } true;binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1 := main_~n~0#1, main_~k~0#1;havoc binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;binomialCoefficient_~n#1 := binomialCoefficient_#in~n#1;binomialCoefficient_~k#1 := binomialCoefficient_#in~k#1; 70179#L30 call binomialCoefficient_#t~ret1#1 := fact(binomialCoefficient_~n#1);< 69781#$Ultimate##0 ~n := #in~n; 70231#L25 assume !(~n <= 0); 70048#L26 call #t~ret0 := fact(~n - 1);< 70061#$Ultimate##0 ~n := #in~n; 70105#L25 assume !(~n <= 0); 70072#L26 call #t~ret0 := fact(~n - 1);< 70098#$Ultimate##0 ~n := #in~n; 70102#L25 assume ~n <= 0;#res := 1; 70101#factFINAL assume true; 70096#factEXIT >#70#return; 70095#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 70084#factFINAL assume true; 70068#factEXIT >#70#return; 70075#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 70223#factFINAL assume true; 70175#factEXIT >#72#return; 69780#L30-1 call binomialCoefficient_#t~ret2#1 := fact(binomialCoefficient_~k#1);< 69781#$Ultimate##0 ~n := #in~n; 70231#L25 assume ~n <= 0;#res := 1; 70212#factFINAL assume true; 70235#factEXIT >#74#return; 70085#L30-2 call binomialCoefficient_#t~ret3#1 := fact(binomialCoefficient_~n#1 - binomialCoefficient_~k#1);< 70228#$Ultimate##0 ~n := #in~n; 70226#L25 assume !(~n <= 0); 70071#L26 call #t~ret0 := fact(~n - 1);< 70086#$Ultimate##0 ~n := #in~n; 70100#L25 assume !(~n <= 0); 70097#L26 call #t~ret0 := fact(~n - 1);< 70099#$Ultimate##0 ~n := #in~n; 70102#L25 assume ~n <= 0;#res := 1; 70101#factFINAL assume true; 70096#factEXIT >#70#return; 70095#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 70084#factFINAL assume true; 70068#factEXIT >#70#return; 70075#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 70223#factFINAL assume true; 70175#factEXIT >#76#return; 70205#L30-3 binomialCoefficient_#res#1 := (if binomialCoefficient_#t~ret1#1 < 0 && 0 != binomialCoefficient_#t~ret1#1 % (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) then (if binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1 < 0 then binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) - 1 else 1 + binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1)) else binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1));havoc binomialCoefficient_#t~ret1#1;havoc binomialCoefficient_#t~ret2#1;havoc binomialCoefficient_#t~ret3#1; 70754#binomialCoefficient_returnLabel#1 main_#t~ret9#1 := binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;havoc binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1;assume { :end_inline_binomialCoefficient } true;havoc main_#t~ret9#1; 70753#L42-2 main_#t~post8#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post8#1;havoc main_#t~post8#1; 70752#L42-3 assume !!(main_~k~0#1 <= main_~x~0#1); 69759#L43 assume main_~k~0#1 <= main_~n~0#1;assume { :begin_inline_binomialCoefficient } true;binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1 := main_~n~0#1, main_~k~0#1;havoc binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;binomialCoefficient_~n#1 := binomialCoefficient_#in~n#1;binomialCoefficient_~k#1 := binomialCoefficient_#in~k#1; 69760#L30 call binomialCoefficient_#t~ret1#1 := fact(binomialCoefficient_~n#1);< 69781#$Ultimate##0 ~n := #in~n; 70231#L25 assume !(~n <= 0); 70048#L26 call #t~ret0 := fact(~n - 1);< 70061#$Ultimate##0 ~n := #in~n; 70105#L25 assume !(~n <= 0); 70072#L26 call #t~ret0 := fact(~n - 1);< 70098#$Ultimate##0 ~n := #in~n; 70102#L25 assume ~n <= 0;#res := 1; 70101#factFINAL assume true; 70096#factEXIT >#70#return; 70095#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 70084#factFINAL assume true; 70068#factEXIT >#70#return; 70075#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 70223#factFINAL assume true; 70175#factEXIT >#72#return; 70186#L30-1 call binomialCoefficient_#t~ret2#1 := fact(binomialCoefficient_~k#1);< 69781#$Ultimate##0 ~n := #in~n; 70231#L25 assume !(~n <= 0); 70048#L26 call #t~ret0 := fact(~n - 1);< 70061#$Ultimate##0 ~n := #in~n; 70063#L25 assume ~n <= 0;#res := 1; 70056#factFINAL assume true; 70041#factEXIT >#70#return; 70051#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 70252#factFINAL assume true; 70237#factEXIT >#74#return; 70187#L30-2 call binomialCoefficient_#t~ret3#1 := fact(binomialCoefficient_~n#1 - binomialCoefficient_~k#1);< 70222#$Ultimate##0 ~n := #in~n; 70211#L25 assume ~n <= 0;#res := 1; 70212#factFINAL assume true; 70235#factEXIT >#76#return; 70204#L30-3 binomialCoefficient_#res#1 := (if binomialCoefficient_#t~ret1#1 < 0 && 0 != binomialCoefficient_#t~ret1#1 % (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) then (if binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1 < 0 then binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) - 1 else 1 + binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1)) else binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1));havoc binomialCoefficient_#t~ret1#1;havoc binomialCoefficient_#t~ret2#1;havoc binomialCoefficient_#t~ret3#1; 70343#binomialCoefficient_returnLabel#1 main_#t~ret9#1 := binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;havoc binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1;assume { :end_inline_binomialCoefficient } true;havoc main_#t~ret9#1; 70342#L42-2 main_#t~post8#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post8#1;havoc main_#t~post8#1; 70340#L42-3 assume !!(main_~k~0#1 <= main_~x~0#1); 70339#L43 assume main_~k~0#1 <= main_~n~0#1;assume { :begin_inline_binomialCoefficient } true;binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1 := main_~n~0#1, main_~k~0#1;havoc binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;binomialCoefficient_~n#1 := binomialCoefficient_#in~n#1;binomialCoefficient_~k#1 := binomialCoefficient_#in~k#1; 70183#L30 call binomialCoefficient_#t~ret1#1 := fact(binomialCoefficient_~n#1);< 69781#$Ultimate##0 ~n := #in~n; 70231#L25 assume !(~n <= 0); 70048#L26 call #t~ret0 := fact(~n - 1);< 70061#$Ultimate##0 ~n := #in~n; 70105#L25 assume !(~n <= 0); 70072#L26 call #t~ret0 := fact(~n - 1);< 70098#$Ultimate##0 ~n := #in~n; 70102#L25 assume ~n <= 0;#res := 1; 70101#factFINAL assume true; 70096#factEXIT >#70#return; 70095#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 70084#factFINAL assume true; 70068#factEXIT >#70#return; 70075#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 70223#factFINAL assume true; 70175#factEXIT >#72#return; 70201#L30-1 call binomialCoefficient_#t~ret2#1 := fact(binomialCoefficient_~k#1);< 69781#$Ultimate##0 ~n := #in~n; 70231#L25 assume !(~n <= 0); 70048#L26 call #t~ret0 := fact(~n - 1);< 70061#$Ultimate##0 ~n := #in~n; 70063#L25 assume ~n <= 0;#res := 1; 70056#factFINAL assume true; 70041#factEXIT >#70#return; 70051#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 70252#factFINAL assume true; 70237#factEXIT >#74#return; 70195#L30-2 call binomialCoefficient_#t~ret3#1 := fact(binomialCoefficient_~n#1 - binomialCoefficient_~k#1);< 70222#$Ultimate##0 ~n := #in~n; 70211#L25 assume ~n <= 0;#res := 1; 70212#factFINAL assume true; 70235#factEXIT >#76#return; 70236#L30-3 binomialCoefficient_#res#1 := (if binomialCoefficient_#t~ret1#1 < 0 && 0 != binomialCoefficient_#t~ret1#1 % (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) then (if binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1 < 0 then binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) - 1 else 1 + binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1)) else binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1));havoc binomialCoefficient_#t~ret1#1;havoc binomialCoefficient_#t~ret2#1;havoc binomialCoefficient_#t~ret3#1; 70257#binomialCoefficient_returnLabel#1 main_#t~ret9#1 := binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;havoc binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1;assume { :end_inline_binomialCoefficient } true;havoc main_#t~ret9#1; 70256#L42-2 main_#t~post8#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post8#1;havoc main_#t~post8#1; 70255#L42-3 assume !!(main_~k~0#1 <= main_~x~0#1); 70254#L43 assume !(main_~k~0#1 <= main_~n~0#1);assume { :begin_inline_binomialCoefficient } true;binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1 := main_~k~0#1, main_~n~0#1;havoc binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;binomialCoefficient_~n#1 := binomialCoefficient_#in~n#1;binomialCoefficient_~k#1 := binomialCoefficient_#in~k#1; 70188#L30-5 call binomialCoefficient_#t~ret1#1 := fact(binomialCoefficient_~n#1);< 69781#$Ultimate##0 ~n := #in~n; 70231#L25 assume !(~n <= 0); 70048#L26 call #t~ret0 := fact(~n - 1);< 70061#$Ultimate##0 ~n := #in~n; 70105#L25 assume !(~n <= 0); 70072#L26 call #t~ret0 := fact(~n - 1);< 70098#$Ultimate##0 ~n := #in~n; 70105#L25 assume !(~n <= 0); 70072#L26 call #t~ret0 := fact(~n - 1);< 70098#$Ultimate##0 ~n := #in~n; 70102#L25 assume ~n <= 0;#res := 1; 70101#factFINAL assume true; 70096#factEXIT >#70#return; 70095#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 70084#factFINAL assume true; 70068#factEXIT >#70#return; 70076#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 70174#factFINAL assume true; 70170#factEXIT >#70#return; 70172#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 70213#factFINAL assume true; 70216#factEXIT >#78#return; 70177#L30-6 call binomialCoefficient_#t~ret2#1 := fact(binomialCoefficient_~k#1);< 69781#$Ultimate##0 ~n := #in~n; 70231#L25 assume !(~n <= 0); 70048#L26 call #t~ret0 := fact(~n - 1);< 70061#$Ultimate##0 ~n := #in~n; 70105#L25 assume !(~n <= 0); 70072#L26 call #t~ret0 := fact(~n - 1);< 70098#$Ultimate##0 ~n := #in~n; 70105#L25 assume !(~n <= 0); 70072#L26 call #t~ret0 := fact(~n - 1);< 70098#$Ultimate##0 ~n := #in~n; 70102#L25 assume ~n <= 0;#res := 1; 70101#factFINAL assume true; 70096#factEXIT >#70#return; 70095#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 70084#factFINAL assume true; 70068#factEXIT >#70#return; 70076#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 70174#factFINAL assume true; 70170#factEXIT >#70#return; 70172#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 70213#factFINAL assume true; 70216#factEXIT >#80#return; 70181#L30-7 call binomialCoefficient_#t~ret3#1 := fact(binomialCoefficient_~n#1 - binomialCoefficient_~k#1);< 70227#$Ultimate##0 ~n := #in~n; 70230#L25 assume !(~n <= 0); 70048#L26 call #t~ret0 := fact(~n - 1);< 70061#$Ultimate##0 ~n := #in~n; 70063#L25 assume ~n <= 0;#res := 1; 70056#factFINAL assume true; 70041#factEXIT >#70#return; 70051#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 70252#factFINAL assume true; 70237#factEXIT >#82#return; 69818#L30-8 binomialCoefficient_#res#1 := (if binomialCoefficient_#t~ret1#1 < 0 && 0 != binomialCoefficient_#t~ret1#1 % (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) then (if binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1 < 0 then binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) - 1 else 1 + binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1)) else binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1));havoc binomialCoefficient_#t~ret1#1;havoc binomialCoefficient_#t~ret2#1;havoc binomialCoefficient_#t~ret3#1; 69808#binomialCoefficient_returnLabel#2 main_#t~ret10#1 := binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;havoc binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1;assume { :end_inline_binomialCoefficient } true;havoc main_#t~ret10#1; 69804#L42-2 main_#t~post8#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post8#1;havoc main_#t~post8#1; 69805#L42-3 assume !(main_~k~0#1 <= main_~x~0#1); 69798#L42-4 [2023-11-12 02:11:25,847 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:11:25,847 INFO L85 PathProgramCache]: Analyzing trace with hash 1417569888, now seen corresponding path program 5 times [2023-11-12 02:11:25,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:11:25,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849514348] [2023-11-12 02:11:25,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:11:25,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:11:25,855 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:11:25,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1197056805] [2023-11-12 02:11:25,855 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-12 02:11:25,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:11:25,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:25,859 INFO L229 MonitoredProcess]: Starting monitored process 136 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:11:25,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (136)] Waiting until timeout for monitored process [2023-11-12 02:11:25,956 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2023-11-12 02:11:25,956 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2023-11-12 02:11:25,956 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:11:25,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:11:25,995 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:11:25,996 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:11:25,996 INFO L85 PathProgramCache]: Analyzing trace with hash -535677175, now seen corresponding path program 5 times [2023-11-12 02:11:25,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:11:25,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525678450] [2023-11-12 02:11:25,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:11:25,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:11:26,007 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:11:26,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1568232580] [2023-11-12 02:11:26,008 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-12 02:11:26,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:11:26,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:26,015 INFO L229 MonitoredProcess]: Starting monitored process 137 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:11:26,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (137)] Waiting until timeout for monitored process [2023-11-12 02:11:26,167 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 15 check-sat command(s) [2023-11-12 02:11:26,167 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-12 02:11:26,169 INFO L262 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-12 02:11:26,173 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:11:26,278 INFO L134 CoverageAnalysis]: Checked inductivity of 1933 backedges. 1144 proven. 27 refuted. 0 times theorem prover too weak. 762 trivial. 0 not checked. [2023-11-12 02:11:26,279 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:11:26,757 INFO L134 CoverageAnalysis]: Checked inductivity of 1933 backedges. 172 proven. 330 refuted. 0 times theorem prover too weak. 1431 trivial. 0 not checked. [2023-11-12 02:11:26,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:11:26,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525678450] [2023-11-12 02:11:26,758 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:11:26,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1568232580] [2023-11-12 02:11:26,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1568232580] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:11:26,758 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-12 02:11:26,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 12] total 15 [2023-11-12 02:11:26,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210967373] [2023-11-12 02:11:26,758 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-12 02:11:26,759 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-12 02:11:26,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:11:26,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-12 02:11:26,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2023-11-12 02:11:26,760 INFO L87 Difference]: Start difference. First operand 2222 states and 3632 transitions. cyclomatic complexity: 1438 Second operand has 15 states, 12 states have (on average 4.0) internal successors, (48), 12 states have internal predecessors, (48), 10 states have call successors, (25), 2 states have call predecessors, (25), 6 states have return successors, (27), 8 states have call predecessors, (27), 10 states have call successors, (27) [2023-11-12 02:11:27,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:11:27,177 INFO L93 Difference]: Finished difference Result 2558 states and 4151 transitions. [2023-11-12 02:11:27,178 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2558 states and 4151 transitions. [2023-11-12 02:11:27,205 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 197 [2023-11-12 02:11:27,236 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2558 states to 2558 states and 4151 transitions. [2023-11-12 02:11:27,237 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 589 [2023-11-12 02:11:27,238 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 589 [2023-11-12 02:11:27,238 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2558 states and 4151 transitions. [2023-11-12 02:11:27,238 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-12 02:11:27,238 INFO L218 hiAutomatonCegarLoop]: Abstraction has 2558 states and 4151 transitions. [2023-11-12 02:11:27,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2558 states and 4151 transitions. [2023-11-12 02:11:27,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2558 to 2255. [2023-11-12 02:11:27,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2255 states, 1358 states have (on average 1.0824742268041236) internal successors, (1470), 1347 states have internal predecessors, (1470), 639 states have call successors, (662), 259 states have call predecessors, (662), 258 states have return successors, (1581), 648 states have call predecessors, (1581), 639 states have call successors, (1581) [2023-11-12 02:11:27,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2255 states to 2255 states and 3713 transitions. [2023-11-12 02:11:27,322 INFO L240 hiAutomatonCegarLoop]: Abstraction has 2255 states and 3713 transitions. [2023-11-12 02:11:27,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-12 02:11:27,323 INFO L428 stractBuchiCegarLoop]: Abstraction has 2255 states and 3713 transitions. [2023-11-12 02:11:27,323 INFO L335 stractBuchiCegarLoop]: ======== Iteration 20 ============ [2023-11-12 02:11:27,324 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2255 states and 3713 transitions. [2023-11-12 02:11:27,353 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 152 [2023-11-12 02:11:27,353 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-12 02:11:27,353 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-12 02:11:27,355 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [8, 8, 6, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:11:27,355 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [31, 31, 19, 19, 19, 19, 12, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:11:27,355 INFO L748 eck$LassoCheckResult]: Stem: 75719#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 75664#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~ret9#1, main_#t~ret10#1, main_#t~post8#1, main_~k~0#1, main_#t~post7#1, main_~n~0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_#t~nondet4#1;main_~x~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 75665#L35 assume !(main_~x~0#1 < 0);havoc main_#t~nondet5#1;main_~y~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 75686#L38 assume !(main_~y~0#1 < 0);havoc main_#t~nondet6#1;main_~z~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;main_~n~0#1 := 0; 75720#L41-3 assume !!(main_~n~0#1 <= main_~x~0#1);main_~k~0#1 := 0; 75789#L42-3 assume !!(main_~k~0#1 <= main_~x~0#1); 75787#L43 assume main_~k~0#1 <= main_~n~0#1;assume { :begin_inline_binomialCoefficient } true;binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1 := main_~n~0#1, main_~k~0#1;havoc binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;binomialCoefficient_~n#1 := binomialCoefficient_#in~n#1;binomialCoefficient_~k#1 := binomialCoefficient_#in~k#1; 75779#L30 call binomialCoefficient_#t~ret1#1 := fact(binomialCoefficient_~n#1);< 75780#$Ultimate##0 ~n := #in~n; 75786#L25 assume ~n <= 0;#res := 1; 75784#factFINAL assume true; 75778#factEXIT >#72#return; 75771#L30-1 call binomialCoefficient_#t~ret2#1 := fact(binomialCoefficient_~k#1);< 75772#$Ultimate##0 ~n := #in~n; 75776#L25 assume ~n <= 0;#res := 1; 75775#factFINAL assume true; 75770#factEXIT >#74#return; 75767#L30-2 call binomialCoefficient_#t~ret3#1 := fact(binomialCoefficient_~n#1 - binomialCoefficient_~k#1);< 75768#$Ultimate##0 ~n := #in~n; 75774#L25 assume ~n <= 0;#res := 1; 75769#factFINAL assume true; 75766#factEXIT >#76#return; 75764#L30-3 binomialCoefficient_#res#1 := (if binomialCoefficient_#t~ret1#1 < 0 && 0 != binomialCoefficient_#t~ret1#1 % (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) then (if binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1 < 0 then binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) - 1 else 1 + binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1)) else binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1));havoc binomialCoefficient_#t~ret1#1;havoc binomialCoefficient_#t~ret2#1;havoc binomialCoefficient_#t~ret3#1; 75763#binomialCoefficient_returnLabel#1 main_#t~ret9#1 := binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;havoc binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1;assume { :end_inline_binomialCoefficient } true;havoc main_#t~ret9#1; 75762#L42-2 main_#t~post8#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post8#1;havoc main_#t~post8#1; 75760#L42-3 assume !!(main_~k~0#1 <= main_~x~0#1); 75758#L43 assume !(main_~k~0#1 <= main_~n~0#1);assume { :begin_inline_binomialCoefficient } true;binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1 := main_~k~0#1, main_~n~0#1;havoc binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;binomialCoefficient_~n#1 := binomialCoefficient_#in~n#1;binomialCoefficient_~k#1 := binomialCoefficient_#in~k#1; 75751#L30-5 call binomialCoefficient_#t~ret1#1 := fact(binomialCoefficient_~n#1);< 75752#$Ultimate##0 ~n := #in~n; 75785#L25 assume !(~n <= 0); 75782#L26 call #t~ret0 := fact(~n - 1);< 75783#$Ultimate##0 ~n := #in~n; 75790#L25 assume ~n <= 0;#res := 1; 75788#factFINAL assume true; 75781#factEXIT >#70#return; 75777#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 75757#factFINAL assume true; 75750#factEXIT >#78#return; 75745#L30-6 call binomialCoefficient_#t~ret2#1 := fact(binomialCoefficient_~k#1);< 75747#$Ultimate##0 ~n := #in~n; 75756#L25 assume ~n <= 0;#res := 1; 75749#factFINAL assume true; 75744#factEXIT >#80#return; 75741#L30-7 call binomialCoefficient_#t~ret3#1 := fact(binomialCoefficient_~n#1 - binomialCoefficient_~k#1);< 75742#$Ultimate##0 ~n := #in~n; 75765#L25 assume !(~n <= 0); 75754#L26 call #t~ret0 := fact(~n - 1);< 75755#$Ultimate##0 ~n := #in~n; 75761#L25 assume ~n <= 0;#res := 1; 75759#factFINAL assume true; 75753#factEXIT >#70#return; 75748#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 75743#factFINAL assume true; 75740#factEXIT >#82#return; 75737#L30-8 binomialCoefficient_#res#1 := (if binomialCoefficient_#t~ret1#1 < 0 && 0 != binomialCoefficient_#t~ret1#1 % (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) then (if binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1 < 0 then binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) - 1 else 1 + binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1)) else binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1));havoc binomialCoefficient_#t~ret1#1;havoc binomialCoefficient_#t~ret2#1;havoc binomialCoefficient_#t~ret3#1; 75739#binomialCoefficient_returnLabel#2 main_#t~ret10#1 := binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;havoc binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1;assume { :end_inline_binomialCoefficient } true;havoc main_#t~ret10#1; 75833#L42-2 main_#t~post8#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post8#1;havoc main_#t~post8#1; 75726#L42-3 assume !(main_~k~0#1 <= main_~x~0#1); 75722#L42-4 [2023-11-12 02:11:27,356 INFO L750 eck$LassoCheckResult]: Loop: 75722#L42-4 havoc main_~k~0#1; 75684#L41-2 main_#t~post7#1 := main_~n~0#1;main_~n~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1; 75676#L41-3 assume !!(main_~n~0#1 <= main_~x~0#1);main_~k~0#1 := 0; 75677#L42-3 assume !!(main_~k~0#1 <= main_~x~0#1); 76015#L43 assume main_~k~0#1 <= main_~n~0#1;assume { :begin_inline_binomialCoefficient } true;binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1 := main_~n~0#1, main_~k~0#1;havoc binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;binomialCoefficient_~n#1 := binomialCoefficient_#in~n#1;binomialCoefficient_~k#1 := binomialCoefficient_#in~k#1; 75793#L30 call binomialCoefficient_#t~ret1#1 := fact(binomialCoefficient_~n#1);< 75827#$Ultimate##0 ~n := #in~n; 76007#L25 assume !(~n <= 0); 75902#L26 call #t~ret0 := fact(~n - 1);< 75947#$Ultimate##0 ~n := #in~n; 75948#L25 assume !(~n <= 0); 75930#L26 call #t~ret0 := fact(~n - 1);< 75986#$Ultimate##0 ~n := #in~n; 75993#L25 assume ~n <= 0;#res := 1; 75989#factFINAL assume true; 75983#factEXIT >#70#return; 75972#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 75949#factFINAL assume true; 75926#factEXIT >#70#return; 75934#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 76001#factFINAL assume true; 75995#factEXIT >#72#return; 75802#L30-1 call binomialCoefficient_#t~ret2#1 := fact(binomialCoefficient_~k#1);< 75827#$Ultimate##0 ~n := #in~n; 76007#L25 assume ~n <= 0;#res := 1; 75883#factFINAL assume true; 75839#factEXIT >#74#return; 75844#L30-2 call binomialCoefficient_#t~ret3#1 := fact(binomialCoefficient_~n#1 - binomialCoefficient_~k#1);< 75997#$Ultimate##0 ~n := #in~n; 75994#L25 assume !(~n <= 0); 75929#L26 call #t~ret0 := fact(~n - 1);< 75950#$Ultimate##0 ~n := #in~n; 75991#L25 assume !(~n <= 0); 75984#L26 call #t~ret0 := fact(~n - 1);< 75985#$Ultimate##0 ~n := #in~n; 75993#L25 assume ~n <= 0;#res := 1; 75989#factFINAL assume true; 75983#factEXIT >#70#return; 75972#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 75949#factFINAL assume true; 75926#factEXIT >#70#return; 75934#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 76001#factFINAL assume true; 75995#factEXIT >#76#return; 75996#L30-3 binomialCoefficient_#res#1 := (if binomialCoefficient_#t~ret1#1 < 0 && 0 != binomialCoefficient_#t~ret1#1 % (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) then (if binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1 < 0 then binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) - 1 else 1 + binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1)) else binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1));havoc binomialCoefficient_#t~ret1#1;havoc binomialCoefficient_#t~ret2#1;havoc binomialCoefficient_#t~ret3#1; 76705#binomialCoefficient_returnLabel#1 main_#t~ret9#1 := binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;havoc binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1;assume { :end_inline_binomialCoefficient } true;havoc main_#t~ret9#1; 76703#L42-2 main_#t~post8#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post8#1;havoc main_#t~post8#1; 76531#L42-3 assume !!(main_~k~0#1 <= main_~x~0#1); 76532#L43 assume main_~k~0#1 <= main_~n~0#1;assume { :begin_inline_binomialCoefficient } true;binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1 := main_~n~0#1, main_~k~0#1;havoc binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;binomialCoefficient_~n#1 := binomialCoefficient_#in~n#1;binomialCoefficient_~k#1 := binomialCoefficient_#in~k#1; 75806#L30 call binomialCoefficient_#t~ret1#1 := fact(binomialCoefficient_~n#1);< 75827#$Ultimate##0 ~n := #in~n; 76007#L25 assume !(~n <= 0); 75902#L26 call #t~ret0 := fact(~n - 1);< 75947#$Ultimate##0 ~n := #in~n; 75948#L25 assume !(~n <= 0); 75930#L26 call #t~ret0 := fact(~n - 1);< 75986#$Ultimate##0 ~n := #in~n; 75993#L25 assume ~n <= 0;#res := 1; 75989#factFINAL assume true; 75983#factEXIT >#70#return; 75972#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 75949#factFINAL assume true; 75926#factEXIT >#70#return; 75934#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 76001#factFINAL assume true; 75995#factEXIT >#72#return; 75797#L30-1 call binomialCoefficient_#t~ret2#1 := fact(binomialCoefficient_~k#1);< 75827#$Ultimate##0 ~n := #in~n; 76007#L25 assume !(~n <= 0); 75902#L26 call #t~ret0 := fact(~n - 1);< 75947#$Ultimate##0 ~n := #in~n; 75948#L25 assume !(~n <= 0); 75930#L26 call #t~ret0 := fact(~n - 1);< 75986#$Ultimate##0 ~n := #in~n; 75948#L25 assume !(~n <= 0); 75930#L26 call #t~ret0 := fact(~n - 1);< 75986#$Ultimate##0 ~n := #in~n; 75993#L25 assume ~n <= 0;#res := 1; 75989#factFINAL assume true; 75983#factEXIT >#70#return; 75972#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 75949#factFINAL assume true; 75926#factEXIT >#70#return; 75936#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 75973#factFINAL assume true; 75957#factEXIT >#70#return; 75959#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 76004#factFINAL assume true; 75987#factEXIT >#74#return; 75840#L30-2 call binomialCoefficient_#t~ret3#1 := fact(binomialCoefficient_~n#1 - binomialCoefficient_~k#1);< 75944#$Ultimate##0 ~n := #in~n; 75882#L25 assume ~n <= 0;#res := 1; 75883#factFINAL assume true; 75839#factEXIT >#76#return; 75819#L30-3 binomialCoefficient_#res#1 := (if binomialCoefficient_#t~ret1#1 < 0 && 0 != binomialCoefficient_#t~ret1#1 % (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) then (if binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1 < 0 then binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) - 1 else 1 + binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1)) else binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1));havoc binomialCoefficient_#t~ret1#1;havoc binomialCoefficient_#t~ret2#1;havoc binomialCoefficient_#t~ret3#1; 76003#binomialCoefficient_returnLabel#1 main_#t~ret9#1 := binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;havoc binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1;assume { :end_inline_binomialCoefficient } true;havoc main_#t~ret9#1; 76000#L42-2 main_#t~post8#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post8#1;havoc main_#t~post8#1; 75999#L42-3 assume !!(main_~k~0#1 <= main_~x~0#1); 75998#L43 assume main_~k~0#1 <= main_~n~0#1;assume { :begin_inline_binomialCoefficient } true;binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1 := main_~n~0#1, main_~k~0#1;havoc binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;binomialCoefficient_~n#1 := binomialCoefficient_#in~n#1;binomialCoefficient_~k#1 := binomialCoefficient_#in~k#1; 75796#L30 call binomialCoefficient_#t~ret1#1 := fact(binomialCoefficient_~n#1);< 75827#$Ultimate##0 ~n := #in~n; 76007#L25 assume !(~n <= 0); 75902#L26 call #t~ret0 := fact(~n - 1);< 75947#$Ultimate##0 ~n := #in~n; 75948#L25 assume !(~n <= 0); 75930#L26 call #t~ret0 := fact(~n - 1);< 75986#$Ultimate##0 ~n := #in~n; 75948#L25 assume !(~n <= 0); 75930#L26 call #t~ret0 := fact(~n - 1);< 75986#$Ultimate##0 ~n := #in~n; 75993#L25 assume ~n <= 0;#res := 1; 75989#factFINAL assume true; 75983#factEXIT >#70#return; 75972#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 75949#factFINAL assume true; 75926#factEXIT >#70#return; 75936#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 75973#factFINAL assume true; 75957#factEXIT >#70#return; 75959#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 76004#factFINAL assume true; 75987#factEXIT >#72#return; 75810#L30-1 call binomialCoefficient_#t~ret2#1 := fact(binomialCoefficient_~k#1);< 75827#$Ultimate##0 ~n := #in~n; 76007#L25 assume !(~n <= 0); 75902#L26 call #t~ret0 := fact(~n - 1);< 75947#$Ultimate##0 ~n := #in~n; 75948#L25 assume !(~n <= 0); 75930#L26 call #t~ret0 := fact(~n - 1);< 75986#$Ultimate##0 ~n := #in~n; 75948#L25 assume !(~n <= 0); 75930#L26 call #t~ret0 := fact(~n - 1);< 75986#$Ultimate##0 ~n := #in~n; 75993#L25 assume ~n <= 0;#res := 1; 75989#factFINAL assume true; 75983#factEXIT >#70#return; 75972#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 75949#factFINAL assume true; 75926#factEXIT >#70#return; 75936#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 75973#factFINAL assume true; 75957#factEXIT >#70#return; 75959#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 76004#factFINAL assume true; 75987#factEXIT >#74#return; 75811#L30-2 call binomialCoefficient_#t~ret3#1 := fact(binomialCoefficient_~n#1 - binomialCoefficient_~k#1);< 75827#$Ultimate##0 ~n := #in~n; 76007#L25 assume ~n <= 0;#res := 1; 75883#factFINAL assume true; 75839#factEXIT >#76#return; 75843#L30-3 binomialCoefficient_#res#1 := (if binomialCoefficient_#t~ret1#1 < 0 && 0 != binomialCoefficient_#t~ret1#1 % (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) then (if binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1 < 0 then binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) - 1 else 1 + binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1)) else binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1));havoc binomialCoefficient_#t~ret1#1;havoc binomialCoefficient_#t~ret2#1;havoc binomialCoefficient_#t~ret3#1; 75946#binomialCoefficient_returnLabel#1 main_#t~ret9#1 := binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;havoc binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1;assume { :end_inline_binomialCoefficient } true;havoc main_#t~ret9#1; 75945#L42-2 main_#t~post8#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post8#1;havoc main_#t~post8#1; 75831#L42-3 assume !!(main_~k~0#1 <= main_~x~0#1); 75832#L43 assume !(main_~k~0#1 <= main_~n~0#1);assume { :begin_inline_binomialCoefficient } true;binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1 := main_~k~0#1, main_~n~0#1;havoc binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;binomialCoefficient_~n#1 := binomialCoefficient_#in~n#1;binomialCoefficient_~k#1 := binomialCoefficient_#in~k#1; 75805#L30-5 call binomialCoefficient_#t~ret1#1 := fact(binomialCoefficient_~n#1);< 75827#$Ultimate##0 ~n := #in~n; 76007#L25 assume !(~n <= 0); 75902#L26 call #t~ret0 := fact(~n - 1);< 75947#$Ultimate##0 ~n := #in~n; 75948#L25 assume !(~n <= 0); 75930#L26 call #t~ret0 := fact(~n - 1);< 75986#$Ultimate##0 ~n := #in~n; 75993#L25 assume ~n <= 0;#res := 1; 75989#factFINAL assume true; 75983#factEXIT >#70#return; 75972#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 75949#factFINAL assume true; 75926#factEXIT >#70#return; 75934#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 76001#factFINAL assume true; 75995#factEXIT >#78#return; 75815#L30-6 call binomialCoefficient_#t~ret2#1 := fact(binomialCoefficient_~k#1);< 75827#$Ultimate##0 ~n := #in~n; 76007#L25 assume !(~n <= 0); 75902#L26 call #t~ret0 := fact(~n - 1);< 75947#$Ultimate##0 ~n := #in~n; 75925#L25 assume ~n <= 0;#res := 1; 75915#factFINAL assume true; 75901#factEXIT >#70#return; 75909#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 75826#factFINAL assume true; 75792#factEXIT >#80#return; 75818#L30-7 call binomialCoefficient_#t~ret3#1 := fact(binomialCoefficient_~n#1 - binomialCoefficient_~k#1);< 75825#$Ultimate##0 ~n := #in~n; 76008#L25 assume !(~n <= 0); 75902#L26 call #t~ret0 := fact(~n - 1);< 75947#$Ultimate##0 ~n := #in~n; 75925#L25 assume ~n <= 0;#res := 1; 75915#factFINAL assume true; 75901#factEXIT >#70#return; 75909#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 75826#factFINAL assume true; 75792#factEXIT >#82#return; 75823#L30-8 binomialCoefficient_#res#1 := (if binomialCoefficient_#t~ret1#1 < 0 && 0 != binomialCoefficient_#t~ret1#1 % (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) then (if binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1 < 0 then binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) - 1 else 1 + binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1)) else binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1));havoc binomialCoefficient_#t~ret1#1;havoc binomialCoefficient_#t~ret2#1;havoc binomialCoefficient_#t~ret3#1; 75732#binomialCoefficient_returnLabel#2 main_#t~ret10#1 := binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;havoc binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1;assume { :end_inline_binomialCoefficient } true;havoc main_#t~ret10#1; 75729#L42-2 main_#t~post8#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post8#1;havoc main_#t~post8#1; 75730#L42-3 assume !(main_~k~0#1 <= main_~x~0#1); 75722#L42-4 [2023-11-12 02:11:27,356 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:11:27,357 INFO L85 PathProgramCache]: Analyzing trace with hash 1417569888, now seen corresponding path program 6 times [2023-11-12 02:11:27,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:11:27,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515863607] [2023-11-12 02:11:27,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:11:27,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:11:27,363 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:11:27,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [360653579] [2023-11-12 02:11:27,364 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-11-12 02:11:27,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:11:27,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:27,371 INFO L229 MonitoredProcess]: Starting monitored process 138 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:11:27,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (138)] Waiting until timeout for monitored process [2023-11-12 02:11:27,464 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2023-11-12 02:11:27,465 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2023-11-12 02:11:27,465 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:11:27,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:11:27,503 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:11:27,503 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:11:27,503 INFO L85 PathProgramCache]: Analyzing trace with hash -998067703, now seen corresponding path program 6 times [2023-11-12 02:11:27,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:11:27,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659734709] [2023-11-12 02:11:27,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:11:27,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:11:27,515 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:11:27,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [647178975] [2023-11-12 02:11:27,515 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-11-12 02:11:27,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:11:27,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:27,527 INFO L229 MonitoredProcess]: Starting monitored process 139 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:11:27,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (139)] Waiting until timeout for monitored process [2023-11-12 02:11:27,652 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 11 check-sat command(s) [2023-11-12 02:11:27,652 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-12 02:11:27,654 INFO L262 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-12 02:11:27,659 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:11:27,833 INFO L134 CoverageAnalysis]: Checked inductivity of 2239 backedges. 494 proven. 205 refuted. 0 times theorem prover too weak. 1540 trivial. 0 not checked. [2023-11-12 02:11:27,834 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:11:28,384 INFO L134 CoverageAnalysis]: Checked inductivity of 2239 backedges. 232 proven. 231 refuted. 0 times theorem prover too weak. 1776 trivial. 0 not checked. [2023-11-12 02:11:28,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:11:28,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659734709] [2023-11-12 02:11:28,385 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:11:28,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [647178975] [2023-11-12 02:11:28,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [647178975] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:11:28,385 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-12 02:11:28,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 14] total 17 [2023-11-12 02:11:28,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537305615] [2023-11-12 02:11:28,386 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-12 02:11:28,386 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-12 02:11:28,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:11:28,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-12 02:11:28,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2023-11-12 02:11:28,387 INFO L87 Difference]: Start difference. First operand 2255 states and 3713 transitions. cyclomatic complexity: 1486 Second operand has 17 states, 14 states have (on average 3.357142857142857) internal successors, (47), 17 states have internal predecessors, (47), 11 states have call successors, (20), 2 states have call predecessors, (20), 6 states have return successors, (20), 9 states have call predecessors, (20), 11 states have call successors, (20) [2023-11-12 02:11:29,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:11:29,031 INFO L93 Difference]: Finished difference Result 2839 states and 4609 transitions. [2023-11-12 02:11:29,031 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2839 states and 4609 transitions. [2023-11-12 02:11:29,054 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 234 [2023-11-12 02:11:29,086 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2839 states to 2771 states and 4490 transitions. [2023-11-12 02:11:29,087 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 655 [2023-11-12 02:11:29,088 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 655 [2023-11-12 02:11:29,088 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2771 states and 4490 transitions. [2023-11-12 02:11:29,088 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-12 02:11:29,088 INFO L218 hiAutomatonCegarLoop]: Abstraction has 2771 states and 4490 transitions. [2023-11-12 02:11:29,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2771 states and 4490 transitions. [2023-11-12 02:11:29,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2771 to 2439. [2023-11-12 02:11:29,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2439 states, 1486 states have (on average 1.0874831763122477) internal successors, (1616), 1480 states have internal predecessors, (1616), 695 states have call successors, (718), 256 states have call predecessors, (718), 258 states have return successors, (1693), 702 states have call predecessors, (1693), 695 states have call successors, (1693) [2023-11-12 02:11:29,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2439 states to 2439 states and 4027 transitions. [2023-11-12 02:11:29,177 INFO L240 hiAutomatonCegarLoop]: Abstraction has 2439 states and 4027 transitions. [2023-11-12 02:11:29,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-12 02:11:29,177 INFO L428 stractBuchiCegarLoop]: Abstraction has 2439 states and 4027 transitions. [2023-11-12 02:11:29,178 INFO L335 stractBuchiCegarLoop]: ======== Iteration 21 ============ [2023-11-12 02:11:29,178 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2439 states and 4027 transitions. [2023-11-12 02:11:29,189 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 198 [2023-11-12 02:11:29,189 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-12 02:11:29,189 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-12 02:11:29,190 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [8, 8, 6, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:11:29,191 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [30, 30, 18, 18, 18, 18, 12, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:11:29,191 INFO L748 eck$LassoCheckResult]: Stem: 82037#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 81978#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~ret9#1, main_#t~ret10#1, main_#t~post8#1, main_~k~0#1, main_#t~post7#1, main_~n~0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_#t~nondet4#1;main_~x~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 81979#L35 assume !(main_~x~0#1 < 0);havoc main_#t~nondet5#1;main_~y~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 81998#L38 assume !(main_~y~0#1 < 0);havoc main_#t~nondet6#1;main_~z~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;main_~n~0#1 := 0; 82038#L41-3 assume !!(main_~n~0#1 <= main_~x~0#1);main_~k~0#1 := 0; 82108#L42-3 assume !!(main_~k~0#1 <= main_~x~0#1); 82106#L43 assume main_~k~0#1 <= main_~n~0#1;assume { :begin_inline_binomialCoefficient } true;binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1 := main_~n~0#1, main_~k~0#1;havoc binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;binomialCoefficient_~n#1 := binomialCoefficient_#in~n#1;binomialCoefficient_~k#1 := binomialCoefficient_#in~k#1; 82098#L30 call binomialCoefficient_#t~ret1#1 := fact(binomialCoefficient_~n#1);< 82099#$Ultimate##0 ~n := #in~n; 82105#L25 assume ~n <= 0;#res := 1; 82103#factFINAL assume true; 82097#factEXIT >#72#return; 82090#L30-1 call binomialCoefficient_#t~ret2#1 := fact(binomialCoefficient_~k#1);< 82091#$Ultimate##0 ~n := #in~n; 82095#L25 assume ~n <= 0;#res := 1; 82094#factFINAL assume true; 82089#factEXIT >#74#return; 82086#L30-2 call binomialCoefficient_#t~ret3#1 := fact(binomialCoefficient_~n#1 - binomialCoefficient_~k#1);< 82087#$Ultimate##0 ~n := #in~n; 82093#L25 assume ~n <= 0;#res := 1; 82088#factFINAL assume true; 82085#factEXIT >#76#return; 82083#L30-3 binomialCoefficient_#res#1 := (if binomialCoefficient_#t~ret1#1 < 0 && 0 != binomialCoefficient_#t~ret1#1 % (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) then (if binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1 < 0 then binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) - 1 else 1 + binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1)) else binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1));havoc binomialCoefficient_#t~ret1#1;havoc binomialCoefficient_#t~ret2#1;havoc binomialCoefficient_#t~ret3#1; 82082#binomialCoefficient_returnLabel#1 main_#t~ret9#1 := binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;havoc binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1;assume { :end_inline_binomialCoefficient } true;havoc main_#t~ret9#1; 82081#L42-2 main_#t~post8#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post8#1;havoc main_#t~post8#1; 82079#L42-3 assume !!(main_~k~0#1 <= main_~x~0#1); 82077#L43 assume !(main_~k~0#1 <= main_~n~0#1);assume { :begin_inline_binomialCoefficient } true;binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1 := main_~k~0#1, main_~n~0#1;havoc binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;binomialCoefficient_~n#1 := binomialCoefficient_#in~n#1;binomialCoefficient_~k#1 := binomialCoefficient_#in~k#1; 82070#L30-5 call binomialCoefficient_#t~ret1#1 := fact(binomialCoefficient_~n#1);< 82071#$Ultimate##0 ~n := #in~n; 82104#L25 assume !(~n <= 0); 82101#L26 call #t~ret0 := fact(~n - 1);< 82102#$Ultimate##0 ~n := #in~n; 82109#L25 assume ~n <= 0;#res := 1; 82107#factFINAL assume true; 82100#factEXIT >#70#return; 82096#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 82076#factFINAL assume true; 82069#factEXIT >#78#return; 82064#L30-6 call binomialCoefficient_#t~ret2#1 := fact(binomialCoefficient_~k#1);< 82066#$Ultimate##0 ~n := #in~n; 82075#L25 assume ~n <= 0;#res := 1; 82068#factFINAL assume true; 82063#factEXIT >#80#return; 82060#L30-7 call binomialCoefficient_#t~ret3#1 := fact(binomialCoefficient_~n#1 - binomialCoefficient_~k#1);< 82061#$Ultimate##0 ~n := #in~n; 82084#L25 assume !(~n <= 0); 82073#L26 call #t~ret0 := fact(~n - 1);< 82074#$Ultimate##0 ~n := #in~n; 82080#L25 assume ~n <= 0;#res := 1; 82078#factFINAL assume true; 82072#factEXIT >#70#return; 82067#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 82062#factFINAL assume true; 82059#factEXIT >#82#return; 82056#L30-8 binomialCoefficient_#res#1 := (if binomialCoefficient_#t~ret1#1 < 0 && 0 != binomialCoefficient_#t~ret1#1 % (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) then (if binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1 < 0 then binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) - 1 else 1 + binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1)) else binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1));havoc binomialCoefficient_#t~ret1#1;havoc binomialCoefficient_#t~ret2#1;havoc binomialCoefficient_#t~ret3#1; 82057#binomialCoefficient_returnLabel#2 main_#t~ret10#1 := binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;havoc binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1;assume { :end_inline_binomialCoefficient } true;havoc main_#t~ret10#1; 82047#L42-2 main_#t~post8#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post8#1;havoc main_#t~post8#1; 82045#L42-3 assume !(main_~k~0#1 <= main_~x~0#1); 82041#L42-4 [2023-11-12 02:11:29,191 INFO L750 eck$LassoCheckResult]: Loop: 82041#L42-4 havoc main_~k~0#1; 81996#L41-2 main_#t~post7#1 := main_~n~0#1;main_~n~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1; 81988#L41-3 assume !!(main_~n~0#1 <= main_~x~0#1);main_~k~0#1 := 0; 81989#L42-3 assume !!(main_~k~0#1 <= main_~x~0#1); 82423#L43 assume main_~k~0#1 <= main_~n~0#1;assume { :begin_inline_binomialCoefficient } true;binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1 := main_~n~0#1, main_~k~0#1;havoc binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;binomialCoefficient_~n#1 := binomialCoefficient_#in~n#1;binomialCoefficient_~k#1 := binomialCoefficient_#in~k#1; 82300#L30 call binomialCoefficient_#t~ret1#1 := fact(binomialCoefficient_~n#1);< 82312#$Ultimate##0 ~n := #in~n; 82398#L25 assume !(~n <= 0); 82177#L26 call #t~ret0 := fact(~n - 1);< 82202#$Ultimate##0 ~n := #in~n; 82198#L25 assume !(~n <= 0); 82190#L26 call #t~ret0 := fact(~n - 1);< 82210#$Ultimate##0 ~n := #in~n; 82224#L25 assume ~n <= 0;#res := 1; 82213#factFINAL assume true; 82203#factEXIT >#70#return; 82205#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 82342#factFINAL assume true; 82336#factEXIT >#70#return; 82333#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 82328#factFINAL assume true; 82315#factEXIT >#72#return; 82306#L30-1 call binomialCoefficient_#t~ret2#1 := fact(binomialCoefficient_~k#1);< 82312#$Ultimate##0 ~n := #in~n; 82398#L25 assume ~n <= 0;#res := 1; 82396#factFINAL assume true; 82286#factEXIT >#74#return; 82234#L30-2 call binomialCoefficient_#t~ret3#1 := fact(binomialCoefficient_~n#1 - binomialCoefficient_~k#1);< 82239#$Ultimate##0 ~n := #in~n; 82237#L25 assume !(~n <= 0); 82211#L26 call #t~ret0 := fact(~n - 1);< 82226#$Ultimate##0 ~n := #in~n; 82223#L25 assume !(~n <= 0); 82204#L26 call #t~ret0 := fact(~n - 1);< 82212#$Ultimate##0 ~n := #in~n; 82224#L25 assume ~n <= 0;#res := 1; 82213#factFINAL assume true; 82203#factEXIT >#70#return; 82205#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 82342#factFINAL assume true; 82336#factEXIT >#70#return; 82333#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 82328#factFINAL assume true; 82315#factEXIT >#76#return; 82325#L30-3 binomialCoefficient_#res#1 := (if binomialCoefficient_#t~ret1#1 < 0 && 0 != binomialCoefficient_#t~ret1#1 % (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) then (if binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1 < 0 then binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) - 1 else 1 + binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1)) else binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1));havoc binomialCoefficient_#t~ret1#1;havoc binomialCoefficient_#t~ret2#1;havoc binomialCoefficient_#t~ret3#1; 83347#binomialCoefficient_returnLabel#1 main_#t~ret9#1 := binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;havoc binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1;assume { :end_inline_binomialCoefficient } true;havoc main_#t~ret9#1; 83345#L42-2 main_#t~post8#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post8#1;havoc main_#t~post8#1; 83344#L42-3 assume !!(main_~k~0#1 <= main_~x~0#1); 83342#L43 assume main_~k~0#1 <= main_~n~0#1;assume { :begin_inline_binomialCoefficient } true;binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1 := main_~n~0#1, main_~k~0#1;havoc binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;binomialCoefficient_~n#1 := binomialCoefficient_#in~n#1;binomialCoefficient_~k#1 := binomialCoefficient_#in~k#1; 82301#L30 call binomialCoefficient_#t~ret1#1 := fact(binomialCoefficient_~n#1);< 82312#$Ultimate##0 ~n := #in~n; 82398#L25 assume !(~n <= 0); 82177#L26 call #t~ret0 := fact(~n - 1);< 82202#$Ultimate##0 ~n := #in~n; 82198#L25 assume !(~n <= 0); 82190#L26 call #t~ret0 := fact(~n - 1);< 82210#$Ultimate##0 ~n := #in~n; 82224#L25 assume ~n <= 0;#res := 1; 82213#factFINAL assume true; 82203#factEXIT >#70#return; 82205#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 82342#factFINAL assume true; 82336#factEXIT >#70#return; 82333#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 82328#factFINAL assume true; 82315#factEXIT >#72#return; 82294#L30-1 call binomialCoefficient_#t~ret2#1 := fact(binomialCoefficient_~k#1);< 82312#$Ultimate##0 ~n := #in~n; 82398#L25 assume !(~n <= 0); 82177#L26 call #t~ret0 := fact(~n - 1);< 82202#$Ultimate##0 ~n := #in~n; 82199#L25 assume ~n <= 0;#res := 1; 82200#factFINAL assume true; 82170#factEXIT >#70#return; 82179#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 82354#factFINAL assume true; 82352#factEXIT >#74#return; 82317#L30-2 call binomialCoefficient_#t~ret3#1 := fact(binomialCoefficient_~n#1 - binomialCoefficient_~k#1);< 82331#$Ultimate##0 ~n := #in~n; 82343#L25 assume !(~n <= 0); 82174#L26 call #t~ret0 := fact(~n - 1);< 82214#$Ultimate##0 ~n := #in~n; 82199#L25 assume ~n <= 0;#res := 1; 82200#factFINAL assume true; 82170#factEXIT >#70#return; 82179#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 82354#factFINAL assume true; 82352#factEXIT >#76#return; 82308#L30-3 binomialCoefficient_#res#1 := (if binomialCoefficient_#t~ret1#1 < 0 && 0 != binomialCoefficient_#t~ret1#1 % (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) then (if binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1 < 0 then binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) - 1 else 1 + binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1)) else binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1));havoc binomialCoefficient_#t~ret1#1;havoc binomialCoefficient_#t~ret2#1;havoc binomialCoefficient_#t~ret3#1; 82359#binomialCoefficient_returnLabel#1 main_#t~ret9#1 := binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;havoc binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1;assume { :end_inline_binomialCoefficient } true;havoc main_#t~ret9#1; 82358#L42-2 main_#t~post8#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post8#1;havoc main_#t~post8#1; 82357#L42-3 assume !!(main_~k~0#1 <= main_~x~0#1); 82356#L43 assume main_~k~0#1 <= main_~n~0#1;assume { :begin_inline_binomialCoefficient } true;binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1 := main_~n~0#1, main_~k~0#1;havoc binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;binomialCoefficient_~n#1 := binomialCoefficient_#in~n#1;binomialCoefficient_~k#1 := binomialCoefficient_#in~k#1; 82293#L30 call binomialCoefficient_#t~ret1#1 := fact(binomialCoefficient_~n#1);< 82312#$Ultimate##0 ~n := #in~n; 82398#L25 assume !(~n <= 0); 82177#L26 call #t~ret0 := fact(~n - 1);< 82202#$Ultimate##0 ~n := #in~n; 82198#L25 assume !(~n <= 0); 82190#L26 call #t~ret0 := fact(~n - 1);< 82210#$Ultimate##0 ~n := #in~n; 82224#L25 assume ~n <= 0;#res := 1; 82213#factFINAL assume true; 82203#factEXIT >#70#return; 82205#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 82342#factFINAL assume true; 82336#factEXIT >#70#return; 82333#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 82328#factFINAL assume true; 82315#factEXIT >#72#return; 82297#L30-1 call binomialCoefficient_#t~ret2#1 := fact(binomialCoefficient_~k#1);< 82312#$Ultimate##0 ~n := #in~n; 82398#L25 assume !(~n <= 0); 82177#L26 call #t~ret0 := fact(~n - 1);< 82202#$Ultimate##0 ~n := #in~n; 82198#L25 assume !(~n <= 0); 82190#L26 call #t~ret0 := fact(~n - 1);< 82210#$Ultimate##0 ~n := #in~n; 82224#L25 assume ~n <= 0;#res := 1; 82213#factFINAL assume true; 82203#factEXIT >#70#return; 82205#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 82342#factFINAL assume true; 82336#factEXIT >#70#return; 82333#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 82328#factFINAL assume true; 82315#factEXIT >#74#return; 82288#L30-2 call binomialCoefficient_#t~ret3#1 := fact(binomialCoefficient_~n#1 - binomialCoefficient_~k#1);< 82355#$Ultimate##0 ~n := #in~n; 82397#L25 assume ~n <= 0;#res := 1; 82396#factFINAL assume true; 82286#factEXIT >#76#return; 82309#L30-3 binomialCoefficient_#res#1 := (if binomialCoefficient_#t~ret1#1 < 0 && 0 != binomialCoefficient_#t~ret1#1 % (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) then (if binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1 < 0 then binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) - 1 else 1 + binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1)) else binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1));havoc binomialCoefficient_#t~ret1#1;havoc binomialCoefficient_#t~ret2#1;havoc binomialCoefficient_#t~ret3#1; 82353#binomialCoefficient_returnLabel#1 main_#t~ret9#1 := binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;havoc binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1;assume { :end_inline_binomialCoefficient } true;havoc main_#t~ret9#1; 82351#L42-2 main_#t~post8#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post8#1;havoc main_#t~post8#1; 82350#L42-3 assume !!(main_~k~0#1 <= main_~x~0#1); 82347#L43 assume !(main_~k~0#1 <= main_~n~0#1);assume { :begin_inline_binomialCoefficient } true;binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1 := main_~k~0#1, main_~n~0#1;havoc binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;binomialCoefficient_~n#1 := binomialCoefficient_#in~n#1;binomialCoefficient_~k#1 := binomialCoefficient_#in~k#1; 82305#L30-5 call binomialCoefficient_#t~ret1#1 := fact(binomialCoefficient_~n#1);< 82312#$Ultimate##0 ~n := #in~n; 82398#L25 assume !(~n <= 0); 82177#L26 call #t~ret0 := fact(~n - 1);< 82202#$Ultimate##0 ~n := #in~n; 82198#L25 assume !(~n <= 0); 82190#L26 call #t~ret0 := fact(~n - 1);< 82210#$Ultimate##0 ~n := #in~n; 82198#L25 assume !(~n <= 0); 82190#L26 call #t~ret0 := fact(~n - 1);< 82210#$Ultimate##0 ~n := #in~n; 82224#L25 assume ~n <= 0;#res := 1; 82213#factFINAL assume true; 82203#factEXIT >#70#return; 82205#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 82342#factFINAL assume true; 82336#factEXIT >#70#return; 82201#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 82183#factFINAL assume true; 82191#factEXIT >#70#return; 82208#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 82339#factFINAL assume true; 82334#factEXIT >#78#return; 82323#L30-6 call binomialCoefficient_#t~ret2#1 := fact(binomialCoefficient_~k#1);< 82329#$Ultimate##0 ~n := #in~n; 82504#L25 assume !(~n <= 0); 82189#L26 call #t~ret0 := fact(~n - 1);< 82182#$Ultimate##0 ~n := #in~n; 82198#L25 assume !(~n <= 0); 82190#L26 call #t~ret0 := fact(~n - 1);< 82210#$Ultimate##0 ~n := #in~n; 82224#L25 assume ~n <= 0;#res := 1; 82213#factFINAL assume true; 82203#factEXIT >#70#return; 82205#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 82342#factFINAL assume true; 82336#factEXIT >#70#return; 82333#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 82328#factFINAL assume true; 82315#factEXIT >#80#return; 82322#L30-7 call binomialCoefficient_#t~ret3#1 := fact(binomialCoefficient_~n#1 - binomialCoefficient_~k#1);< 82330#$Ultimate##0 ~n := #in~n; 82344#L25 assume !(~n <= 0); 82177#L26 call #t~ret0 := fact(~n - 1);< 82202#$Ultimate##0 ~n := #in~n; 82199#L25 assume ~n <= 0;#res := 1; 82200#factFINAL assume true; 82170#factEXIT >#70#return; 82179#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 82354#factFINAL assume true; 82352#factEXIT >#82#return; 82324#L30-8 binomialCoefficient_#res#1 := (if binomialCoefficient_#t~ret1#1 < 0 && 0 != binomialCoefficient_#t~ret1#1 % (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) then (if binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1 < 0 then binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1) - 1 else 1 + binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1)) else binomialCoefficient_#t~ret1#1 / (binomialCoefficient_#t~ret2#1 * binomialCoefficient_#t~ret3#1));havoc binomialCoefficient_#t~ret1#1;havoc binomialCoefficient_#t~ret2#1;havoc binomialCoefficient_#t~ret3#1; 82349#binomialCoefficient_returnLabel#2 main_#t~ret10#1 := binomialCoefficient_#res#1;havoc binomialCoefficient_#t~ret1#1, binomialCoefficient_#t~ret2#1, binomialCoefficient_#t~ret3#1, binomialCoefficient_~n#1, binomialCoefficient_~k#1;havoc binomialCoefficient_#in~n#1, binomialCoefficient_#in~k#1;assume { :end_inline_binomialCoefficient } true;havoc main_#t~ret10#1; 82346#L42-2 main_#t~post8#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post8#1;havoc main_#t~post8#1; 82345#L42-3 assume !(main_~k~0#1 <= main_~x~0#1); 82041#L42-4 [2023-11-12 02:11:29,192 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:11:29,192 INFO L85 PathProgramCache]: Analyzing trace with hash 1417569888, now seen corresponding path program 7 times [2023-11-12 02:11:29,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:11:29,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505295990] [2023-11-12 02:11:29,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:11:29,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:11:29,199 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:11:29,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1046475362] [2023-11-12 02:11:29,199 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-11-12 02:11:29,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:11:29,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:29,203 INFO L229 MonitoredProcess]: Starting monitored process 140 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:11:29,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (140)] Waiting until timeout for monitored process [2023-11-12 02:11:29,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:11:29,298 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:11:29,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:11:29,336 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:11:29,337 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:11:29,337 INFO L85 PathProgramCache]: Analyzing trace with hash 913421257, now seen corresponding path program 7 times [2023-11-12 02:11:29,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:11:29,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961264106] [2023-11-12 02:11:29,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:11:29,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:11:29,348 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:11:29,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [993816613] [2023-11-12 02:11:29,348 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-11-12 02:11:29,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:11:29,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:29,355 INFO L229 MonitoredProcess]: Starting monitored process 141 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:11:29,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (141)] Waiting until timeout for monitored process [2023-11-12 02:11:29,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:11:29,570 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:11:29,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:11:29,714 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:11:29,714 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:11:29,714 INFO L85 PathProgramCache]: Analyzing trace with hash 365474344, now seen corresponding path program 1 times [2023-11-12 02:11:29,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:11:29,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997762614] [2023-11-12 02:11:29,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:11:29,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:11:29,728 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:11:29,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1587202198] [2023-11-12 02:11:29,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:11:29,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:11:29,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:11:29,736 INFO L229 MonitoredProcess]: Starting monitored process 142 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:11:29,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_484e8388-afc7-4a3d-82b1-c27fe0dcb9be/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (142)] Waiting until timeout for monitored process [2023-11-12 02:11:29,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:11:29,936 INFO L262 TraceCheckSpWp]: Trace formula consists of 565 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-12 02:11:29,941 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:11:30,023 INFO L134 CoverageAnalysis]: Checked inductivity of 3286 backedges. 1433 proven. 10 refuted. 0 times theorem prover too weak. 1843 trivial. 0 not checked. [2023-11-12 02:11:30,024 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:11:30,354 INFO L134 CoverageAnalysis]: Checked inductivity of 3286 backedges. 117 proven. 237 refuted. 0 times theorem prover too weak. 2932 trivial. 0 not checked. [2023-11-12 02:11:30,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:11:30,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997762614] [2023-11-12 02:11:30,355 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:11:30,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1587202198] [2023-11-12 02:11:30,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1587202198] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:11:30,356 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-12 02:11:30,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 10 [2023-11-12 02:11:30,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620848365] [2023-11-12 02:11:30,357 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton