./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-restricted-15/UpAndDown.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-restricted-15/UpAndDown.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 1a3ce217426a55eb46107f2cdf23c10dcc5d92a99768880786a980fae67c3971 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 20:55:04,104 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 20:55:04,193 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-11-12 20:55:04,198 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 20:55:04,199 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 20:55:04,235 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 20:55:04,237 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 20:55:04,238 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 20:55:04,239 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 20:55:04,240 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 20:55:04,241 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 20:55:04,241 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 20:55:04,242 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 20:55:04,242 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-12 20:55:04,242 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-12 20:55:04,244 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-12 20:55:04,245 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-12 20:55:04,245 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-12 20:55:04,245 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-12 20:55:04,246 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 20:55:04,246 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-12 20:55:04,247 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 20:55:04,250 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 20:55:04,250 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-12 20:55:04,251 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-12 20:55:04,251 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-12 20:55:04,251 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 20:55:04,251 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-12 20:55:04,251 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 20:55:04,252 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-12 20:55:04,252 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 20:55:04,252 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 20:55:04,253 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 20:55:04,253 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 20:55:04,254 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 20:55:04,255 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-12 20:55:04,255 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1a3ce217426a55eb46107f2cdf23c10dcc5d92a99768880786a980fae67c3971 [2024-11-12 20:55:04,510 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 20:55:04,534 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 20:55:04,537 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 20:55:04,538 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 20:55:04,539 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 20:55:04,540 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/UpAndDown.c [2024-11-12 20:55:06,006 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 20:55:06,181 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 20:55:06,182 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/UpAndDown.c [2024-11-12 20:55:06,188 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d8069cbf/343b424234ff42cebe13ac7980e75c13/FLAG928a02ae5 [2024-11-12 20:55:06,589 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d8069cbf/343b424234ff42cebe13ac7980e75c13 [2024-11-12 20:55:06,591 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 20:55:06,592 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 20:55:06,593 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 20:55:06,593 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 20:55:06,598 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 20:55:06,598 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 08:55:06" (1/1) ... [2024-11-12 20:55:06,599 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a0ff2f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:55:06, skipping insertion in model container [2024-11-12 20:55:06,599 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 08:55:06" (1/1) ... [2024-11-12 20:55:06,613 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 20:55:06,781 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 20:55:06,788 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 20:55:06,801 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 20:55:06,817 INFO L204 MainTranslator]: Completed translation [2024-11-12 20:55:06,818 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:55:06 WrapperNode [2024-11-12 20:55:06,818 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 20:55:06,819 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 20:55:06,819 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 20:55:06,819 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 20:55:06,826 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:55:06" (1/1) ... [2024-11-12 20:55:06,830 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:55:06" (1/1) ... [2024-11-12 20:55:06,844 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2024-11-12 20:55:06,846 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 20:55:06,847 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 20:55:06,847 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 20:55:06,847 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 20:55:06,857 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:55:06" (1/1) ... [2024-11-12 20:55:06,857 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:55:06" (1/1) ... [2024-11-12 20:55:06,858 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:55:06" (1/1) ... [2024-11-12 20:55:06,864 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-12 20:55:06,864 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:55:06" (1/1) ... [2024-11-12 20:55:06,864 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:55:06" (1/1) ... [2024-11-12 20:55:06,865 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:55:06" (1/1) ... [2024-11-12 20:55:06,870 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:55:06" (1/1) ... [2024-11-12 20:55:06,870 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:55:06" (1/1) ... [2024-11-12 20:55:06,871 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:55:06" (1/1) ... [2024-11-12 20:55:06,875 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 20:55:06,876 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 20:55:06,877 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 20:55:06,877 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 20:55:06,877 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:55:06" (1/1) ... [2024-11-12 20:55:06,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:06,895 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:06,911 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:55:06,913 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-12 20:55:06,955 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 20:55:06,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 20:55:07,030 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 20:55:07,033 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 20:55:07,108 INFO L? ?]: Removed 3 outVars from TransFormulas that were not future-live. [2024-11-12 20:55:07,108 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 20:55:07,123 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 20:55:07,126 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-12 20:55:07,126 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 08:55:07 BoogieIcfgContainer [2024-11-12 20:55:07,127 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 20:55:07,128 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-12 20:55:07,128 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-12 20:55:07,131 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-12 20:55:07,132 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-12 20:55:07,132 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 12.11 08:55:06" (1/3) ... [2024-11-12 20:55:07,133 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@9f9df3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.11 08:55:07, skipping insertion in model container [2024-11-12 20:55:07,134 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-12 20:55:07,134 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:55:06" (2/3) ... [2024-11-12 20:55:07,135 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@9f9df3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.11 08:55:07, skipping insertion in model container [2024-11-12 20:55:07,135 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-12 20:55:07,135 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 08:55:07" (3/3) ... [2024-11-12 20:55:07,137 INFO L332 chiAutomizerObserver]: Analyzing ICFG UpAndDown.c [2024-11-12 20:55:07,191 INFO L301 stractBuchiCegarLoop]: Interprodecural is true [2024-11-12 20:55:07,191 INFO L302 stractBuchiCegarLoop]: Hoare is None [2024-11-12 20:55:07,191 INFO L303 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-12 20:55:07,191 INFO L304 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-12 20:55:07,192 INFO L305 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-12 20:55:07,192 INFO L306 stractBuchiCegarLoop]: Difference is false [2024-11-12 20:55:07,192 INFO L307 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-12 20:55:07,192 INFO L311 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-12 20:55:07,196 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:55:07,226 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-11-12 20:55:07,226 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-12 20:55:07,227 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-12 20:55:07,232 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-12 20:55:07,232 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-12 20:55:07,233 INFO L333 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-12 20:55:07,233 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:55:07,234 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-11-12 20:55:07,234 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-12 20:55:07,234 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-12 20:55:07,234 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-12 20:55:07,234 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-12 20:55:07,240 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0;" [2024-11-12 20:55:07,240 INFO L749 eck$LassoCheckResult]: Loop: "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume 0 == main_~i~0#1;main_~up~0#1 := 1;" "assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1;" [2024-11-12 20:55:07,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:55:07,246 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-11-12 20:55:07,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:55:07,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482528880] [2024-11-12 20:55:07,268 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:55:07,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:55:07,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:55:07,331 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 20:55:07,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:55:07,350 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 20:55:07,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:55:07,353 INFO L85 PathProgramCache]: Analyzing trace with hash 1267244, now seen corresponding path program 1 times [2024-11-12 20:55:07,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:55:07,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971620729] [2024-11-12 20:55:07,354 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:55:07,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:55:07,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:55:07,373 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 20:55:07,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:55:07,383 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 20:55:07,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:55:07,386 INFO L85 PathProgramCache]: Analyzing trace with hash 889694446, now seen corresponding path program 1 times [2024-11-12 20:55:07,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:55:07,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487361282] [2024-11-12 20:55:07,387 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:55:07,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:55:07,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:55:07,398 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 20:55:07,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:55:07,409 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 20:55:07,514 INFO L204 LassoAnalysis]: Preferences: [2024-11-12 20:55:07,514 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-12 20:55:07,514 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-12 20:55:07,515 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-12 20:55:07,515 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-12 20:55:07,515 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:07,515 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-12 20:55:07,515 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-12 20:55:07,515 INFO L132 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration1_Loop [2024-11-12 20:55:07,516 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-12 20:55:07,516 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-12 20:55:07,532 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:07,542 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:07,546 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:07,550 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:07,625 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-12 20:55:07,625 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-12 20:55:07,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:07,628 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:07,630 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:55:07,634 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-11-12 20:55:07,635 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 20:55:07,635 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:55:07,657 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-12 20:55:07,657 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~up~0#1=1} Honda state: {ULTIMATE.start_main_~up~0#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-12 20:55:07,669 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-11-12 20:55:07,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:07,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:07,671 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:55:07,673 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-11-12 20:55:07,674 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 20:55:07,674 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:55:07,694 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-12 20:55:07,695 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-12 20:55:07,711 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2024-11-12 20:55:07,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:07,712 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:07,713 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:55:07,714 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-11-12 20:55:07,715 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 20:55:07,716 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:55:07,735 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-12 20:55:07,735 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-12 20:55:07,746 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2024-11-12 20:55:07,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:07,747 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:07,748 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:55:07,749 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-11-12 20:55:07,750 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 20:55:07,750 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:55:07,772 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2024-11-12 20:55:07,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:07,773 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:07,775 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:55:07,777 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-11-12 20:55:07,778 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-12 20:55:07,778 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:55:07,793 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-12 20:55:07,807 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2024-11-12 20:55:07,807 INFO L204 LassoAnalysis]: Preferences: [2024-11-12 20:55:07,807 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-12 20:55:07,807 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-12 20:55:07,808 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-12 20:55:07,808 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-12 20:55:07,808 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:07,808 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-12 20:55:07,808 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-12 20:55:07,808 INFO L132 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration1_Loop [2024-11-12 20:55:07,808 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-12 20:55:07,808 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-12 20:55:07,810 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:07,816 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:07,821 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:07,828 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:07,883 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-12 20:55:07,888 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-12 20:55:07,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:07,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:07,891 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:55:07,893 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-11-12 20:55:07,894 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 [2024-11-12 20:55:07,908 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 20:55:07,909 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 20:55:07,909 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 20:55:07,910 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 20:55:07,915 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-12 20:55:07,915 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-12 20:55:07,921 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-12 20:55:07,935 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2024-11-12 20:55:07,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:07,936 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:07,937 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:55:07,938 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-11-12 20:55:07,939 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 [2024-11-12 20:55:07,949 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 20:55:07,949 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 20:55:07,949 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 20:55:07,949 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 20:55:07,954 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-12 20:55:07,954 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-12 20:55:07,963 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-12 20:55:07,978 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2024-11-12 20:55:07,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:07,980 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:07,982 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:55:07,983 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-11-12 20:55:07,984 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 [2024-11-12 20:55:07,997 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 20:55:07,997 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-12 20:55:07,998 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 20:55:07,998 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 20:55:07,998 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 20:55:07,999 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-12 20:55:07,999 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-12 20:55:08,003 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-12 20:55:08,007 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-12 20:55:08,007 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-12 20:55:08,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:08,008 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:08,064 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:55:08,066 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-11-12 20:55:08,066 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-12 20:55:08,066 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-12 20:55:08,067 INFO L474 LassoAnalysis]: Proved termination. [2024-11-12 20:55:08,067 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 1 Supporting invariants [] [2024-11-12 20:55:08,082 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2024-11-12 20:55:08,086 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-12 20:55:08,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:55:08,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:55:08,127 INFO L256 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-12 20:55:08,127 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:55:08,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:55:08,144 INFO L256 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-12 20:55:08,145 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:55:08,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:55:08,207 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-12 20:55:08,209 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:55:08,264 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 28 states and 45 transitions. Complement of second has 8 states. [2024-11-12 20:55:08,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-11-12 20:55:08,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:55:08,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 15 transitions. [2024-11-12 20:55:08,279 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 2 letters. Loop has 4 letters. [2024-11-12 20:55:08,280 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 20:55:08,280 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 6 letters. Loop has 4 letters. [2024-11-12 20:55:08,280 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 20:55:08,280 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 2 letters. Loop has 8 letters. [2024-11-12 20:55:08,280 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 20:55:08,282 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 45 transitions. [2024-11-12 20:55:08,287 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2024-11-12 20:55:08,292 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 19 states and 30 transitions. [2024-11-12 20:55:08,293 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2024-11-12 20:55:08,293 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2024-11-12 20:55:08,293 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 30 transitions. [2024-11-12 20:55:08,294 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-12 20:55:08,294 INFO L218 hiAutomatonCegarLoop]: Abstraction has 19 states and 30 transitions. [2024-11-12 20:55:08,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 30 transitions. [2024-11-12 20:55:08,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2024-11-12 20:55:08,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 17 states have internal predecessors, (28), 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) [2024-11-12 20:55:08,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 28 transitions. [2024-11-12 20:55:08,316 INFO L240 hiAutomatonCegarLoop]: Abstraction has 18 states and 28 transitions. [2024-11-12 20:55:08,316 INFO L426 stractBuchiCegarLoop]: Abstraction has 18 states and 28 transitions. [2024-11-12 20:55:08,316 INFO L333 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-12 20:55:08,316 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 28 transitions. [2024-11-12 20:55:08,317 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2024-11-12 20:55:08,317 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-12 20:55:08,317 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-12 20:55:08,317 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-12 20:55:08,317 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-12 20:55:08,318 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" [2024-11-12 20:55:08,318 INFO L749 eck$LassoCheckResult]: Loop: "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" [2024-11-12 20:55:08,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:55:08,323 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2024-11-12 20:55:08,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:55:08,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700377624] [2024-11-12 20:55:08,324 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:55:08,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:55:08,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:55:08,328 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 20:55:08,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:55:08,331 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 20:55:08,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:55:08,332 INFO L85 PathProgramCache]: Analyzing trace with hash 1422136, now seen corresponding path program 1 times [2024-11-12 20:55:08,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:55:08,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911593167] [2024-11-12 20:55:08,332 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:55:08,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:55:08,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:55:08,336 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 20:55:08,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:55:08,340 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 20:55:08,340 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:55:08,340 INFO L85 PathProgramCache]: Analyzing trace with hash 1810725983, now seen corresponding path program 1 times [2024-11-12 20:55:08,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:55:08,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733105303] [2024-11-12 20:55:08,340 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:55:08,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:55:08,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:55:08,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:55:08,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733105303] [2024-11-12 20:55:08,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733105303] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 20:55:08,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2110417886] [2024-11-12 20:55:08,409 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:55:08,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 20:55:08,410 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:08,416 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 20:55:08,423 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-12 20:55:08,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:55:08,449 INFO L256 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-12 20:55:08,450 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:55:08,459 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 20:55:08,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2110417886] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 20:55:08,479 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 20:55:08,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2024-11-12 20:55:08,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980690971] [2024-11-12 20:55:08,480 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 20:55:08,534 INFO L204 LassoAnalysis]: Preferences: [2024-11-12 20:55:08,534 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-12 20:55:08,534 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-12 20:55:08,537 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-12 20:55:08,537 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-12 20:55:08,537 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:08,537 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-12 20:55:08,537 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-12 20:55:08,537 INFO L132 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration2_Loop [2024-11-12 20:55:08,537 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-12 20:55:08,537 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-12 20:55:08,538 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:08,544 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:08,548 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:08,561 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:08,639 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-12 20:55:08,639 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-12 20:55:08,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:08,640 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:08,642 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:55:08,643 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-11-12 20:55:08,645 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 20:55:08,645 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:55:08,667 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-12 20:55:08,668 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-12 20:55:08,683 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2024-11-12 20:55:08,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:08,683 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:08,685 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:55:08,686 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-11-12 20:55:08,687 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 20:55:08,687 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:55:08,710 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-12 20:55:08,711 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-12 20:55:08,726 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2024-11-12 20:55:08,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:08,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:08,731 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:55:08,735 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 20:55:08,736 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:55:08,736 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-11-12 20:55:08,766 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2024-11-12 20:55:08,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:08,767 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:08,769 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:55:08,770 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-11-12 20:55:08,773 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-12 20:55:08,773 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:55:08,846 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-12 20:55:08,851 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2024-11-12 20:55:08,852 INFO L204 LassoAnalysis]: Preferences: [2024-11-12 20:55:08,852 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-12 20:55:08,852 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-12 20:55:08,852 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-12 20:55:08,852 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-12 20:55:08,852 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:08,852 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-12 20:55:08,852 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-12 20:55:08,852 INFO L132 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration2_Loop [2024-11-12 20:55:08,852 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-12 20:55:08,852 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-12 20:55:08,854 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:08,858 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:08,865 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:08,874 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:08,959 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-12 20:55:08,959 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-12 20:55:08,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:08,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:08,963 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:55:08,967 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-11-12 20:55:08,968 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 [2024-11-12 20:55:08,978 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 20:55:08,978 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 20:55:08,978 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 20:55:08,979 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 20:55:08,981 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-12 20:55:08,981 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-12 20:55:08,984 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-12 20:55:08,999 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2024-11-12 20:55:09,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:09,000 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:09,002 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:55:09,004 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2024-11-12 20:55:09,006 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 [2024-11-12 20:55:09,019 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 20:55:09,020 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 20:55:09,020 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 20:55:09,020 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 20:55:09,024 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-12 20:55:09,024 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-12 20:55:09,035 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-12 20:55:09,050 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2024-11-12 20:55:09,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:09,051 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:09,056 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:55:09,057 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-11-12 20:55:09,059 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 [2024-11-12 20:55:09,070 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 20:55:09,070 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-12 20:55:09,070 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 20:55:09,070 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-11-12 20:55:09,070 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 20:55:09,072 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2024-11-12 20:55:09,072 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-12 20:55:09,075 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-12 20:55:09,081 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-12 20:55:09,082 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-12 20:55:09,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:09,082 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:09,086 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:55:09,096 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-12 20:55:09,096 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-12 20:55:09,097 INFO L474 LassoAnalysis]: Proved termination. [2024-11-12 20:55:09,097 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 19 Supporting invariants [] [2024-11-12 20:55:09,097 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-11-12 20:55:09,111 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2024-11-12 20:55:09,113 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-12 20:55:09,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:55:09,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:55:09,146 INFO L256 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-12 20:55:09,146 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:55:09,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:55:09,166 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-12 20:55:09,166 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:55:09,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:55:09,201 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-12 20:55:09,201 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 28 transitions. cyclomatic complexity: 13 Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:55:09,240 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 28 transitions. cyclomatic complexity: 13. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 28 states and 43 transitions. Complement of second has 7 states. [2024-11-12 20:55:09,242 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 [2024-11-12 20:55:09,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:55:09,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2024-11-12 20:55:09,243 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 3 letters. Loop has 4 letters. [2024-11-12 20:55:09,243 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 20:55:09,243 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 7 letters. Loop has 4 letters. [2024-11-12 20:55:09,243 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 20:55:09,243 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 3 letters. Loop has 8 letters. [2024-11-12 20:55:09,243 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 20:55:09,244 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 43 transitions. [2024-11-12 20:55:09,245 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-11-12 20:55:09,249 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 21 states and 35 transitions. [2024-11-12 20:55:09,249 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2024-11-12 20:55:09,249 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2024-11-12 20:55:09,249 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 35 transitions. [2024-11-12 20:55:09,249 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-12 20:55:09,249 INFO L218 hiAutomatonCegarLoop]: Abstraction has 21 states and 35 transitions. [2024-11-12 20:55:09,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 35 transitions. [2024-11-12 20:55:09,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2024-11-12 20:55:09,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 20 states have (on average 1.7) internal successors, (34), 19 states have internal predecessors, (34), 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) [2024-11-12 20:55:09,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 34 transitions. [2024-11-12 20:55:09,253 INFO L240 hiAutomatonCegarLoop]: Abstraction has 20 states and 34 transitions. [2024-11-12 20:55:09,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:55:09,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 20:55:09,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 20:55:09,256 INFO L87 Difference]: Start difference. First operand 20 states and 34 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:55:09,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 20:55:09,270 INFO L93 Difference]: Finished difference Result 32 states and 52 transitions. [2024-11-12 20:55:09,270 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 52 transitions. [2024-11-12 20:55:09,273 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2024-11-12 20:55:09,274 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 29 states and 46 transitions. [2024-11-12 20:55:09,274 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2024-11-12 20:55:09,274 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2024-11-12 20:55:09,274 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 46 transitions. [2024-11-12 20:55:09,275 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-12 20:55:09,275 INFO L218 hiAutomatonCegarLoop]: Abstraction has 29 states and 46 transitions. [2024-11-12 20:55:09,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 46 transitions. [2024-11-12 20:55:09,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 28. [2024-11-12 20:55:09,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 28 states have (on average 1.6071428571428572) internal successors, (45), 27 states have internal predecessors, (45), 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) [2024-11-12 20:55:09,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 45 transitions. [2024-11-12 20:55:09,278 INFO L240 hiAutomatonCegarLoop]: Abstraction has 28 states and 45 transitions. [2024-11-12 20:55:09,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 20:55:09,279 INFO L426 stractBuchiCegarLoop]: Abstraction has 28 states and 45 transitions. [2024-11-12 20:55:09,279 INFO L333 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-12 20:55:09,279 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states and 45 transitions. [2024-11-12 20:55:09,280 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2024-11-12 20:55:09,280 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-12 20:55:09,280 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-12 20:55:09,281 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2024-11-12 20:55:09,281 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-12 20:55:09,281 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume 10 == main_~i~0#1;main_~up~0#1 := 0;" "assume !(0 == main_~i~0#1);" [2024-11-12 20:55:09,281 INFO L749 eck$LassoCheckResult]: Loop: "assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" [2024-11-12 20:55:09,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:55:09,282 INFO L85 PathProgramCache]: Analyzing trace with hash 28699760, now seen corresponding path program 1 times [2024-11-12 20:55:09,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:55:09,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108522443] [2024-11-12 20:55:09,282 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:55:09,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:55:09,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:55:09,287 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 20:55:09,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:55:09,294 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 20:55:09,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:55:09,294 INFO L85 PathProgramCache]: Analyzing trace with hash 1768758, now seen corresponding path program 1 times [2024-11-12 20:55:09,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:55:09,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893593162] [2024-11-12 20:55:09,295 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:55:09,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:55:09,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:55:09,300 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 20:55:09,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:55:09,303 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 20:55:09,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:55:09,304 INFO L85 PathProgramCache]: Analyzing trace with hash 588716581, now seen corresponding path program 1 times [2024-11-12 20:55:09,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:55:09,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006677551] [2024-11-12 20:55:09,304 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:55:09,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:55:09,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:55:09,313 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 20:55:09,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:55:09,321 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 20:55:09,357 INFO L204 LassoAnalysis]: Preferences: [2024-11-12 20:55:09,357 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-12 20:55:09,357 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-12 20:55:09,358 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-12 20:55:09,358 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-12 20:55:09,358 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:09,358 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-12 20:55:09,358 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-12 20:55:09,358 INFO L132 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration3_Loop [2024-11-12 20:55:09,358 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-12 20:55:09,358 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-12 20:55:09,359 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:09,365 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:09,368 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:09,377 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:09,442 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-12 20:55:09,442 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-12 20:55:09,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:09,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:09,444 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:55:09,445 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-11-12 20:55:09,446 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 20:55:09,446 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:55:09,469 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-12 20:55:09,469 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-12 20:55:09,484 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2024-11-12 20:55:09,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:09,485 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:09,487 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:55:09,488 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2024-11-12 20:55:09,489 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 20:55:09,489 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:55:09,512 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-12 20:55:09,513 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~up~0#1=4} Honda state: {ULTIMATE.start_main_~up~0#1=4} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-12 20:55:09,527 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2024-11-12 20:55:09,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:09,528 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:09,529 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:55:09,553 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2024-11-12 20:55:09,554 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 20:55:09,554 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:55:09,558 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2024-11-12 20:55:09,569 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2024-11-12 20:55:09,578 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2024-11-12 20:55:09,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:09,579 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:09,580 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:55:09,582 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2024-11-12 20:55:09,583 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-12 20:55:09,583 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:55:09,652 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-12 20:55:09,656 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2024-11-12 20:55:09,657 INFO L204 LassoAnalysis]: Preferences: [2024-11-12 20:55:09,657 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-12 20:55:09,657 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-12 20:55:09,657 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-12 20:55:09,657 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-12 20:55:09,657 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:09,657 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-12 20:55:09,657 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-12 20:55:09,657 INFO L132 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration3_Loop [2024-11-12 20:55:09,657 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-12 20:55:09,657 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-12 20:55:09,658 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:09,661 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:09,664 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:09,676 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:09,746 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-12 20:55:09,746 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-12 20:55:09,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:09,747 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:09,748 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:55:09,750 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 [2024-11-12 20:55:09,754 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2024-11-12 20:55:09,763 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 20:55:09,763 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 20:55:09,763 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 20:55:09,763 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 20:55:09,765 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-12 20:55:09,765 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-12 20:55:09,771 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-12 20:55:09,785 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2024-11-12 20:55:09,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:09,786 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:09,787 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:55:09,789 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2024-11-12 20:55:09,790 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 [2024-11-12 20:55:09,803 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 20:55:09,804 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-12 20:55:09,804 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 20:55:09,804 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-11-12 20:55:09,804 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 20:55:09,805 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2024-11-12 20:55:09,805 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-12 20:55:09,808 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-12 20:55:09,822 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2024-11-12 20:55:09,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:09,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:09,823 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:55:09,824 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2024-11-12 20:55:09,825 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 [2024-11-12 20:55:09,834 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 20:55:09,835 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-12 20:55:09,835 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 20:55:09,835 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 20:55:09,835 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 20:55:09,836 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-12 20:55:09,836 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-12 20:55:09,840 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-12 20:55:09,842 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-11-12 20:55:09,842 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-12 20:55:09,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:09,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:09,844 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:55:09,845 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2024-11-12 20:55:09,846 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-12 20:55:09,846 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-12 20:55:09,846 INFO L474 LassoAnalysis]: Proved termination. [2024-11-12 20:55:09,846 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2024-11-12 20:55:09,860 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2024-11-12 20:55:09,861 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-12 20:55:09,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:55:09,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:55:09,877 INFO L256 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-12 20:55:09,878 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:55:09,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:55:09,889 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-12 20:55:09,889 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:55:09,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:55:09,918 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 [2024-11-12 20:55:09,918 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 28 states and 45 transitions. cyclomatic complexity: 20 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:55:09,948 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 28 states and 45 transitions. cyclomatic complexity: 20. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 65 states and 104 transitions. Complement of second has 7 states. [2024-11-12 20:55:09,950 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 [2024-11-12 20:55:09,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:55:09,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2024-11-12 20:55:09,951 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 5 letters. Loop has 4 letters. [2024-11-12 20:55:09,951 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 20:55:09,952 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 9 letters. Loop has 4 letters. [2024-11-12 20:55:09,952 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 20:55:09,952 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 5 letters. Loop has 8 letters. [2024-11-12 20:55:09,952 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 20:55:09,952 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 65 states and 104 transitions. [2024-11-12 20:55:09,957 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 13 [2024-11-12 20:55:09,958 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 65 states to 60 states and 98 transitions. [2024-11-12 20:55:09,958 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2024-11-12 20:55:09,959 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 32 [2024-11-12 20:55:09,959 INFO L73 IsDeterministic]: Start isDeterministic. Operand 60 states and 98 transitions. [2024-11-12 20:55:09,959 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-12 20:55:09,959 INFO L218 hiAutomatonCegarLoop]: Abstraction has 60 states and 98 transitions. [2024-11-12 20:55:09,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states and 98 transitions. [2024-11-12 20:55:09,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 56. [2024-11-12 20:55:09,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 56 states have (on average 1.6785714285714286) internal successors, (94), 55 states have internal predecessors, (94), 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) [2024-11-12 20:55:09,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 94 transitions. [2024-11-12 20:55:09,966 INFO L240 hiAutomatonCegarLoop]: Abstraction has 56 states and 94 transitions. [2024-11-12 20:55:09,966 INFO L426 stractBuchiCegarLoop]: Abstraction has 56 states and 94 transitions. [2024-11-12 20:55:09,967 INFO L333 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-12 20:55:09,967 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 56 states and 94 transitions. [2024-11-12 20:55:09,971 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 13 [2024-11-12 20:55:09,971 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-12 20:55:09,971 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-12 20:55:09,972 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2024-11-12 20:55:09,972 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-12 20:55:09,972 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume 10 == main_~i~0#1;main_~up~0#1 := 0;" "assume 0 == main_~i~0#1;main_~up~0#1 := 1;" "assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1;" [2024-11-12 20:55:09,972 INFO L749 eck$LassoCheckResult]: Loop: "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume 10 == main_~i~0#1;main_~up~0#1 := 0;" "assume 0 == main_~i~0#1;main_~up~0#1 := 1;" "assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1;" [2024-11-12 20:55:09,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:55:09,972 INFO L85 PathProgramCache]: Analyzing trace with hash 889692526, now seen corresponding path program 1 times [2024-11-12 20:55:09,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:55:09,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412714063] [2024-11-12 20:55:09,973 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:55:09,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:55:09,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:55:10,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:55:10,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412714063] [2024-11-12 20:55:10,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412714063] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 20:55:10,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [4734754] [2024-11-12 20:55:10,009 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:55:10,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 20:55:10,010 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:10,012 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 20:55:10,013 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-12 20:55:10,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:55:10,039 INFO L256 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-12 20:55:10,039 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:55:10,043 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 20:55:10,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [4734754] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 20:55:10,049 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 20:55:10,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 4 [2024-11-12 20:55:10,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986812918] [2024-11-12 20:55:10,049 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 20:55:10,049 INFO L752 eck$LassoCheckResult]: stem already infeasible [2024-11-12 20:55:10,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:55:10,050 INFO L85 PathProgramCache]: Analyzing trace with hash 1265322, now seen corresponding path program 1 times [2024-11-12 20:55:10,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:55:10,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918367060] [2024-11-12 20:55:10,050 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:55:10,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:55:10,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:55:10,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:55:10,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918367060] [2024-11-12 20:55:10,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918367060] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 20:55:10,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [626980350] [2024-11-12 20:55:10,076 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:55:10,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 20:55:10,076 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:10,078 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 20:55:10,079 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-12 20:55:10,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:55:10,103 INFO L256 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-12 20:55:10,104 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:55:10,108 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 20:55:10,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [626980350] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 20:55:10,115 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 20:55:10,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 4 [2024-11-12 20:55:10,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241792944] [2024-11-12 20:55:10,116 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 20:55:10,116 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-12 20:55:10,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:55:10,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 20:55:10,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-12 20:55:10,117 INFO L87 Difference]: Start difference. First operand 56 states and 94 transitions. cyclomatic complexity: 44 Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:55:10,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 20:55:10,144 INFO L93 Difference]: Finished difference Result 73 states and 109 transitions. [2024-11-12 20:55:10,144 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 73 states and 109 transitions. [2024-11-12 20:55:10,145 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 18 [2024-11-12 20:55:10,146 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 73 states to 69 states and 102 transitions. [2024-11-12 20:55:10,146 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 39 [2024-11-12 20:55:10,147 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 39 [2024-11-12 20:55:10,147 INFO L73 IsDeterministic]: Start isDeterministic. Operand 69 states and 102 transitions. [2024-11-12 20:55:10,147 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-12 20:55:10,147 INFO L218 hiAutomatonCegarLoop]: Abstraction has 69 states and 102 transitions. [2024-11-12 20:55:10,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states and 102 transitions. [2024-11-12 20:55:10,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 65. [2024-11-12 20:55:10,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 65 states have (on average 1.5076923076923077) internal successors, (98), 64 states have internal predecessors, (98), 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) [2024-11-12 20:55:10,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 98 transitions. [2024-11-12 20:55:10,155 INFO L240 hiAutomatonCegarLoop]: Abstraction has 65 states and 98 transitions. [2024-11-12 20:55:10,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 20:55:10,156 INFO L426 stractBuchiCegarLoop]: Abstraction has 65 states and 98 transitions. [2024-11-12 20:55:10,156 INFO L333 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-11-12 20:55:10,156 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 65 states and 98 transitions. [2024-11-12 20:55:10,157 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 17 [2024-11-12 20:55:10,157 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-12 20:55:10,157 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-12 20:55:10,158 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2024-11-12 20:55:10,158 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-12 20:55:10,158 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume 0 == main_~i~0#1;main_~up~0#1 := 1;" "assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1;" [2024-11-12 20:55:10,158 INFO L749 eck$LassoCheckResult]: Loop: "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume 0 == main_~i~0#1;main_~up~0#1 := 1;" "assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1;" [2024-11-12 20:55:10,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:55:10,158 INFO L85 PathProgramCache]: Analyzing trace with hash 889694448, now seen corresponding path program 1 times [2024-11-12 20:55:10,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:55:10,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756907502] [2024-11-12 20:55:10,159 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:55:10,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:55:10,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:55:10,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:55:10,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756907502] [2024-11-12 20:55:10,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756907502] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 20:55:10,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1499123476] [2024-11-12 20:55:10,182 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:55:10,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 20:55:10,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:10,184 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 20:55:10,185 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-12 20:55:10,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:55:10,209 INFO L256 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-12 20:55:10,209 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:55:10,212 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 20:55:10,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1499123476] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 20:55:10,215 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 20:55:10,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 2 [2024-11-12 20:55:10,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227911140] [2024-11-12 20:55:10,215 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 20:55:10,215 INFO L752 eck$LassoCheckResult]: stem already infeasible [2024-11-12 20:55:10,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:55:10,215 INFO L85 PathProgramCache]: Analyzing trace with hash 1267244, now seen corresponding path program 2 times [2024-11-12 20:55:10,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:55:10,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857779912] [2024-11-12 20:55:10,216 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:55:10,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:55:10,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:55:10,219 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 20:55:10,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:55:10,221 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 20:55:10,244 INFO L204 LassoAnalysis]: Preferences: [2024-11-12 20:55:10,244 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-12 20:55:10,244 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-12 20:55:10,244 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-12 20:55:10,244 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-12 20:55:10,244 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:10,244 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-12 20:55:10,244 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-12 20:55:10,244 INFO L132 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration5_Loop [2024-11-12 20:55:10,244 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-12 20:55:10,244 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-12 20:55:10,245 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:10,249 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:10,252 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:10,254 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:10,295 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-12 20:55:10,295 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-12 20:55:10,295 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:10,295 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:10,297 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:55:10,298 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2024-11-12 20:55:10,299 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 20:55:10,299 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:55:10,321 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2024-11-12 20:55:10,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:10,322 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:10,323 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:55:10,324 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2024-11-12 20:55:10,325 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-12 20:55:10,325 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:55:10,337 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-12 20:55:10,346 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2024-11-12 20:55:10,347 INFO L204 LassoAnalysis]: Preferences: [2024-11-12 20:55:10,347 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-12 20:55:10,347 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-12 20:55:10,347 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-12 20:55:10,347 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-12 20:55:10,347 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:10,347 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-12 20:55:10,347 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-12 20:55:10,347 INFO L132 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration5_Loop [2024-11-12 20:55:10,347 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-12 20:55:10,347 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-12 20:55:10,348 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:10,355 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:10,357 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:10,359 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:10,401 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-12 20:55:10,402 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-12 20:55:10,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:10,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:10,403 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:55:10,405 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2024-11-12 20:55:10,405 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 [2024-11-12 20:55:10,418 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 20:55:10,418 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-12 20:55:10,418 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 20:55:10,418 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 20:55:10,418 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 20:55:10,419 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-12 20:55:10,419 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-12 20:55:10,422 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-12 20:55:10,425 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-12 20:55:10,425 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-12 20:55:10,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:10,425 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:10,427 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:55:10,428 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2024-11-12 20:55:10,429 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-12 20:55:10,429 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-12 20:55:10,429 INFO L474 LassoAnalysis]: Proved termination. [2024-11-12 20:55:10,429 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 1 Supporting invariants [] [2024-11-12 20:55:10,443 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2024-11-12 20:55:10,445 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-12 20:55:10,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:55:10,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:55:10,464 INFO L256 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-12 20:55:10,464 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:55:10,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:55:10,477 INFO L256 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-12 20:55:10,478 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:55:10,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:55:10,499 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-12 20:55:10,500 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 65 states and 98 transitions. cyclomatic complexity: 39 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2024-11-12 20:55:10,535 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 65 states and 98 transitions. cyclomatic complexity: 39. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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 140 states and 202 transitions. Complement of second has 7 states. [2024-11-12 20:55:10,540 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 [2024-11-12 20:55:10,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2024-11-12 20:55:10,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2024-11-12 20:55:10,541 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 6 letters. Loop has 4 letters. [2024-11-12 20:55:10,541 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 20:55:10,541 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 10 letters. Loop has 4 letters. [2024-11-12 20:55:10,542 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 20:55:10,542 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 6 letters. Loop has 8 letters. [2024-11-12 20:55:10,542 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 20:55:10,542 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 140 states and 202 transitions. [2024-11-12 20:55:10,545 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 21 [2024-11-12 20:55:10,546 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 140 states to 122 states and 178 transitions. [2024-11-12 20:55:10,546 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 61 [2024-11-12 20:55:10,547 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 66 [2024-11-12 20:55:10,547 INFO L73 IsDeterministic]: Start isDeterministic. Operand 122 states and 178 transitions. [2024-11-12 20:55:10,547 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-12 20:55:10,547 INFO L218 hiAutomatonCegarLoop]: Abstraction has 122 states and 178 transitions. [2024-11-12 20:55:10,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states and 178 transitions. [2024-11-12 20:55:10,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 96. [2024-11-12 20:55:10,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 96 states have (on average 1.53125) internal successors, (147), 95 states have internal predecessors, (147), 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) [2024-11-12 20:55:10,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 147 transitions. [2024-11-12 20:55:10,555 INFO L240 hiAutomatonCegarLoop]: Abstraction has 96 states and 147 transitions. [2024-11-12 20:55:10,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:55:10,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 20:55:10,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 20:55:10,556 INFO L87 Difference]: Start difference. First operand 96 states and 147 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:55:10,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 20:55:10,567 INFO L93 Difference]: Finished difference Result 71 states and 96 transitions. [2024-11-12 20:55:10,567 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 71 states and 96 transitions. [2024-11-12 20:55:10,568 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 17 [2024-11-12 20:55:10,569 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 71 states to 64 states and 86 transitions. [2024-11-12 20:55:10,569 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 31 [2024-11-12 20:55:10,569 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 31 [2024-11-12 20:55:10,569 INFO L73 IsDeterministic]: Start isDeterministic. Operand 64 states and 86 transitions. [2024-11-12 20:55:10,569 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-12 20:55:10,569 INFO L218 hiAutomatonCegarLoop]: Abstraction has 64 states and 86 transitions. [2024-11-12 20:55:10,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states and 86 transitions. [2024-11-12 20:55:10,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 61. [2024-11-12 20:55:10,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 61 states have (on average 1.3442622950819672) internal successors, (82), 60 states have internal predecessors, (82), 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) [2024-11-12 20:55:10,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 82 transitions. [2024-11-12 20:55:10,572 INFO L240 hiAutomatonCegarLoop]: Abstraction has 61 states and 82 transitions. [2024-11-12 20:55:10,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 20:55:10,573 INFO L426 stractBuchiCegarLoop]: Abstraction has 61 states and 82 transitions. [2024-11-12 20:55:10,573 INFO L333 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-11-12 20:55:10,573 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 61 states and 82 transitions. [2024-11-12 20:55:10,574 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 17 [2024-11-12 20:55:10,574 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-12 20:55:10,574 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-12 20:55:10,574 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1, 1, 1] [2024-11-12 20:55:10,574 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-12 20:55:10,574 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume 0 == main_~i~0#1;main_~up~0#1 := 1;" "assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" [2024-11-12 20:55:10,574 INFO L749 eck$LassoCheckResult]: Loop: "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" [2024-11-12 20:55:10,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:55:10,575 INFO L85 PathProgramCache]: Analyzing trace with hash -1988396462, now seen corresponding path program 1 times [2024-11-12 20:55:10,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:55:10,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823715054] [2024-11-12 20:55:10,575 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:55:10,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:55:10,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:55:10,580 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 20:55:10,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:55:10,584 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 20:55:10,584 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:55:10,584 INFO L85 PathProgramCache]: Analyzing trace with hash 1422136, now seen corresponding path program 2 times [2024-11-12 20:55:10,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:55:10,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189676712] [2024-11-12 20:55:10,584 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:55:10,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:55:10,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:55:10,587 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 20:55:10,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:55:10,589 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 20:55:10,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:55:10,589 INFO L85 PathProgramCache]: Analyzing trace with hash 263822601, now seen corresponding path program 2 times [2024-11-12 20:55:10,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:55:10,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776597529] [2024-11-12 20:55:10,589 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:55:10,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:55:10,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:55:10,598 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 20:55:10,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:55:10,606 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 20:55:10,648 INFO L204 LassoAnalysis]: Preferences: [2024-11-12 20:55:10,648 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-12 20:55:10,648 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-12 20:55:10,648 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-12 20:55:10,648 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-12 20:55:10,648 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:10,648 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-12 20:55:10,649 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-12 20:55:10,649 INFO L132 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration6_Loop [2024-11-12 20:55:10,649 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-12 20:55:10,649 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-12 20:55:10,649 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:10,657 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:10,660 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:10,663 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:10,733 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-12 20:55:10,733 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-12 20:55:10,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:10,734 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:10,735 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:55:10,736 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2024-11-12 20:55:10,738 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 20:55:10,738 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:55:10,764 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2024-11-12 20:55:10,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:10,764 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:10,765 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:55:10,766 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2024-11-12 20:55:10,766 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-12 20:55:10,767 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:55:10,837 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-12 20:55:10,841 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2024-11-12 20:55:10,841 INFO L204 LassoAnalysis]: Preferences: [2024-11-12 20:55:10,841 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-12 20:55:10,841 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-12 20:55:10,841 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-12 20:55:10,841 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-12 20:55:10,842 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:10,842 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-12 20:55:10,842 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-12 20:55:10,842 INFO L132 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration6_Loop [2024-11-12 20:55:10,842 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-12 20:55:10,842 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-12 20:55:10,843 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:10,849 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:10,851 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:10,853 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:10,913 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-12 20:55:10,913 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-12 20:55:10,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:10,914 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:10,915 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:55:10,916 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2024-11-12 20:55:10,916 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 [2024-11-12 20:55:10,926 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 20:55:10,926 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-12 20:55:10,926 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 20:55:10,926 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-11-12 20:55:10,926 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 20:55:10,928 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2024-11-12 20:55:10,928 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-12 20:55:10,931 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-12 20:55:10,933 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-12 20:55:10,933 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-12 20:55:10,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:10,934 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:10,935 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:55:10,937 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2024-11-12 20:55:10,937 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-12 20:55:10,937 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-12 20:55:10,937 INFO L474 LassoAnalysis]: Proved termination. [2024-11-12 20:55:10,937 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 19 Supporting invariants [] [2024-11-12 20:55:10,951 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2024-11-12 20:55:10,952 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-12 20:55:10,966 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:55:10,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:55:10,973 INFO L256 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-12 20:55:10,974 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:55:10,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:55:10,997 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-12 20:55:10,997 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:55:11,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:55:11,013 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-12 20:55:11,013 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 61 states and 82 transitions. cyclomatic complexity: 28 Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:55:11,044 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 61 states and 82 transitions. cyclomatic complexity: 28. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 81 states and 108 transitions. Complement of second has 7 states. [2024-11-12 20:55:11,047 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 [2024-11-12 20:55:11,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:55:11,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2024-11-12 20:55:11,048 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 11 letters. Loop has 4 letters. [2024-11-12 20:55:11,048 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 20:55:11,048 INFO L683 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-12 20:55:11,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:55:11,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:55:11,066 INFO L256 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-12 20:55:11,067 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:55:11,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:55:11,088 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-12 20:55:11,088 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:55:11,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:55:11,103 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-12 20:55:11,103 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 61 states and 82 transitions. cyclomatic complexity: 28 Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:55:11,132 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 61 states and 82 transitions. cyclomatic complexity: 28. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 81 states and 108 transitions. Complement of second has 7 states. [2024-11-12 20:55:11,132 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 [2024-11-12 20:55:11,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:55:11,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2024-11-12 20:55:11,134 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 11 letters. Loop has 4 letters. [2024-11-12 20:55:11,134 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 20:55:11,134 INFO L683 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-12 20:55:11,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:55:11,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:55:11,151 INFO L256 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-12 20:55:11,152 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:55:11,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:55:11,168 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-12 20:55:11,169 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:55:11,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:55:11,182 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-12 20:55:11,182 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 61 states and 82 transitions. cyclomatic complexity: 28 Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:55:11,208 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 61 states and 82 transitions. cyclomatic complexity: 28. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 99 states and 137 transitions. Complement of second has 6 states. [2024-11-12 20:55:11,208 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 [2024-11-12 20:55:11,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:55:11,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2024-11-12 20:55:11,209 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 11 letters. Loop has 4 letters. [2024-11-12 20:55:11,209 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 20:55:11,209 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 15 letters. Loop has 4 letters. [2024-11-12 20:55:11,210 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 20:55:11,210 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 11 letters. Loop has 8 letters. [2024-11-12 20:55:11,210 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 20:55:11,210 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 99 states and 137 transitions. [2024-11-12 20:55:11,211 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 14 [2024-11-12 20:55:11,212 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 99 states to 62 states and 83 transitions. [2024-11-12 20:55:11,212 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2024-11-12 20:55:11,212 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2024-11-12 20:55:11,212 INFO L73 IsDeterministic]: Start isDeterministic. Operand 62 states and 83 transitions. [2024-11-12 20:55:11,212 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-12 20:55:11,212 INFO L218 hiAutomatonCegarLoop]: Abstraction has 62 states and 83 transitions. [2024-11-12 20:55:11,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states and 83 transitions. [2024-11-12 20:55:11,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 57. [2024-11-12 20:55:11,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 57 states have (on average 1.3508771929824561) internal successors, (77), 56 states have internal predecessors, (77), 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) [2024-11-12 20:55:11,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 77 transitions. [2024-11-12 20:55:11,215 INFO L240 hiAutomatonCegarLoop]: Abstraction has 57 states and 77 transitions. [2024-11-12 20:55:11,215 INFO L426 stractBuchiCegarLoop]: Abstraction has 57 states and 77 transitions. [2024-11-12 20:55:11,215 INFO L333 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2024-11-12 20:55:11,215 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 57 states and 77 transitions. [2024-11-12 20:55:11,215 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2024-11-12 20:55:11,216 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-12 20:55:11,216 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-12 20:55:11,216 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 2, 1, 1, 1, 1, 1] [2024-11-12 20:55:11,216 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-12 20:55:11,216 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume 0 == main_~i~0#1;main_~up~0#1 := 1;" "assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume 10 == main_~i~0#1;main_~up~0#1 := 0;" [2024-11-12 20:55:11,216 INFO L749 eck$LassoCheckResult]: Loop: "assume !(0 == main_~i~0#1);" "assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume 10 == main_~i~0#1;main_~up~0#1 := 0;" [2024-11-12 20:55:11,216 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:55:11,217 INFO L85 PathProgramCache]: Analyzing trace with hash 1818617978, now seen corresponding path program 1 times [2024-11-12 20:55:11,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:55:11,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914964248] [2024-11-12 20:55:11,217 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:55:11,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:55:11,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:55:11,278 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2024-11-12 20:55:11,306 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2024-11-12 20:55:11,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:55:11,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914964248] [2024-11-12 20:55:11,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914964248] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 20:55:11,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [500049966] [2024-11-12 20:55:11,319 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:55:11,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 20:55:11,319 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:11,319 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2024-11-12 20:55:11,323 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 20:55:11,324 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2024-11-12 20:55:11,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:55:11,356 INFO L256 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-12 20:55:11,357 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:55:11,369 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 20:55:11,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [500049966] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 20:55:11,399 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 20:55:11,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-12 20:55:11,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475383245] [2024-11-12 20:55:11,399 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 20:55:11,399 INFO L752 eck$LassoCheckResult]: stem already infeasible [2024-11-12 20:55:11,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:55:11,400 INFO L85 PathProgramCache]: Analyzing trace with hash 1606186, now seen corresponding path program 1 times [2024-11-12 20:55:11,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:55:11,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848891212] [2024-11-12 20:55:11,400 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:55:11,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:55:11,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:55:11,404 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 20:55:11,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:55:11,409 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 20:55:11,444 INFO L204 LassoAnalysis]: Preferences: [2024-11-12 20:55:11,444 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-12 20:55:11,444 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-12 20:55:11,444 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-12 20:55:11,444 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-12 20:55:11,444 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:11,444 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-12 20:55:11,444 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-12 20:55:11,444 INFO L132 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration7_Loop [2024-11-12 20:55:11,444 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-12 20:55:11,444 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-12 20:55:11,445 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:11,447 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:11,451 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:11,459 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:11,499 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-12 20:55:11,499 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-12 20:55:11,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:11,500 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:11,501 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:55:11,503 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2024-11-12 20:55:11,503 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 20:55:11,503 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:55:11,521 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-12 20:55:11,521 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_11=1} Honda state: {v_rep~unnamed0~0~true_11=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-12 20:55:11,531 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2024-11-12 20:55:11,531 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:11,532 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:11,532 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:55:11,533 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2024-11-12 20:55:11,534 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 20:55:11,534 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:55:11,552 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-12 20:55:11,552 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_11=0} Honda state: {v_rep~unnamed0~0~false_11=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-12 20:55:11,563 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2024-11-12 20:55:11,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:11,563 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:11,564 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:55:11,565 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2024-11-12 20:55:11,565 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 20:55:11,565 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:55:11,584 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-12 20:55:11,584 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~up~0#1=0} Honda state: {ULTIMATE.start_main_~up~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-12 20:55:11,595 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2024-11-12 20:55:11,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:11,595 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:11,596 INFO L229 MonitoredProcess]: Starting monitored process 43 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:55:11,597 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2024-11-12 20:55:11,598 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 20:55:11,598 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:55:11,619 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2024-11-12 20:55:11,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:11,620 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:11,621 INFO L229 MonitoredProcess]: Starting monitored process 44 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:55:11,622 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2024-11-12 20:55:11,622 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-12 20:55:11,623 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:55:11,634 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-12 20:55:11,645 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2024-11-12 20:55:11,645 INFO L204 LassoAnalysis]: Preferences: [2024-11-12 20:55:11,645 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-12 20:55:11,645 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-12 20:55:11,645 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-12 20:55:11,645 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-12 20:55:11,645 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:11,645 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-12 20:55:11,646 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-12 20:55:11,646 INFO L132 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration7_Loop [2024-11-12 20:55:11,646 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-12 20:55:11,646 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-12 20:55:11,646 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:11,651 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:11,655 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:11,657 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:11,704 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-12 20:55:11,704 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-12 20:55:11,704 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:11,705 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:11,706 INFO L229 MonitoredProcess]: Starting monitored process 45 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:55:11,706 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2024-11-12 20:55:11,707 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 [2024-11-12 20:55:11,716 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 20:55:11,717 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 20:55:11,717 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 20:55:11,717 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 20:55:11,718 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-12 20:55:11,718 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-12 20:55:11,722 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-12 20:55:11,735 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2024-11-12 20:55:11,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:11,736 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:11,742 INFO L229 MonitoredProcess]: Starting monitored process 46 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:55:11,744 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2024-11-12 20:55:11,744 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 [2024-11-12 20:55:11,754 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 20:55:11,754 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-12 20:55:11,754 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 20:55:11,754 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-11-12 20:55:11,754 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 20:55:11,756 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2024-11-12 20:55:11,756 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-12 20:55:11,759 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-12 20:55:11,772 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2024-11-12 20:55:11,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:11,772 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:11,773 INFO L229 MonitoredProcess]: Starting monitored process 47 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:55:11,774 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2024-11-12 20:55:11,774 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 [2024-11-12 20:55:11,784 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 20:55:11,784 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 20:55:11,784 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 20:55:11,784 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 20:55:11,786 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-12 20:55:11,786 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-12 20:55:11,790 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-12 20:55:11,803 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Ended with exit code 0 [2024-11-12 20:55:11,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:11,803 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:11,804 INFO L229 MonitoredProcess]: Starting monitored process 48 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:55:11,806 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2024-11-12 20:55:11,807 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 [2024-11-12 20:55:11,817 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 20:55:11,817 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-12 20:55:11,817 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 20:55:11,818 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 20:55:11,818 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 20:55:11,818 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-12 20:55:11,818 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-12 20:55:11,820 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-12 20:55:11,822 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-12 20:55:11,822 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-12 20:55:11,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:11,823 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:11,824 INFO L229 MonitoredProcess]: Starting monitored process 49 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:55:11,824 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2024-11-12 20:55:11,825 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-12 20:55:11,825 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-12 20:55:11,825 INFO L474 LassoAnalysis]: Proved termination. [2024-11-12 20:55:11,825 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2024-11-12 20:55:11,835 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Ended with exit code 0 [2024-11-12 20:55:11,835 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-12 20:55:11,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:55:11,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:55:11,853 INFO L256 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-12 20:55:11,853 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:55:11,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:55:11,869 INFO L256 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-12 20:55:11,869 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:55:11,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:55:11,880 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-12 20:55:11,880 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 57 states and 77 transitions. cyclomatic complexity: 26 Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:55:11,901 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 57 states and 77 transitions. cyclomatic complexity: 26. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 108 states and 152 transitions. Complement of second has 7 states. [2024-11-12 20:55:11,902 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 [2024-11-12 20:55:11,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:55:11,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2024-11-12 20:55:11,904 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 12 letters. Loop has 4 letters. [2024-11-12 20:55:11,904 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 20:55:11,904 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 16 letters. Loop has 4 letters. [2024-11-12 20:55:11,904 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 20:55:11,904 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 12 letters. Loop has 8 letters. [2024-11-12 20:55:11,905 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 20:55:11,905 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 108 states and 152 transitions. [2024-11-12 20:55:11,906 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2024-11-12 20:55:11,906 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 108 states to 88 states and 119 transitions. [2024-11-12 20:55:11,906 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2024-11-12 20:55:11,906 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2024-11-12 20:55:11,906 INFO L73 IsDeterministic]: Start isDeterministic. Operand 88 states and 119 transitions. [2024-11-12 20:55:11,907 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-12 20:55:11,907 INFO L218 hiAutomatonCegarLoop]: Abstraction has 88 states and 119 transitions. [2024-11-12 20:55:11,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states and 119 transitions. [2024-11-12 20:55:11,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 69. [2024-11-12 20:55:11,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 69 states have (on average 1.3623188405797102) internal successors, (94), 68 states have internal predecessors, (94), 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) [2024-11-12 20:55:11,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 94 transitions. [2024-11-12 20:55:11,910 INFO L240 hiAutomatonCegarLoop]: Abstraction has 69 states and 94 transitions. [2024-11-12 20:55:11,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:55:11,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-12 20:55:11,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2024-11-12 20:55:11,911 INFO L87 Difference]: Start difference. First operand 69 states and 94 transitions. Second operand has 8 states, 7 states have (on average 2.857142857142857) internal successors, (20), 8 states have internal predecessors, (20), 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) [2024-11-12 20:55:11,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 20:55:11,957 INFO L93 Difference]: Finished difference Result 168 states and 212 transitions. [2024-11-12 20:55:11,957 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 168 states and 212 transitions. [2024-11-12 20:55:11,958 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 34 [2024-11-12 20:55:11,959 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 168 states to 168 states and 212 transitions. [2024-11-12 20:55:11,959 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2024-11-12 20:55:11,959 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2024-11-12 20:55:11,960 INFO L73 IsDeterministic]: Start isDeterministic. Operand 168 states and 212 transitions. [2024-11-12 20:55:11,960 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-12 20:55:11,960 INFO L218 hiAutomatonCegarLoop]: Abstraction has 168 states and 212 transitions. [2024-11-12 20:55:11,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states and 212 transitions. [2024-11-12 20:55:11,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 124. [2024-11-12 20:55:11,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 124 states have (on average 1.2580645161290323) internal successors, (156), 123 states have internal predecessors, (156), 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) [2024-11-12 20:55:11,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 156 transitions. [2024-11-12 20:55:11,969 INFO L240 hiAutomatonCegarLoop]: Abstraction has 124 states and 156 transitions. [2024-11-12 20:55:11,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-12 20:55:11,970 INFO L426 stractBuchiCegarLoop]: Abstraction has 124 states and 156 transitions. [2024-11-12 20:55:11,970 INFO L333 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2024-11-12 20:55:11,970 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 124 states and 156 transitions. [2024-11-12 20:55:11,971 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 32 [2024-11-12 20:55:11,971 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-12 20:55:11,971 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-12 20:55:11,975 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [9, 7, 7, 6, 2, 2, 1, 1, 1] [2024-11-12 20:55:11,975 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-12 20:55:11,975 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume 10 == main_~i~0#1;main_~up~0#1 := 0;" "assume !(0 == main_~i~0#1);" "assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume 0 == main_~i~0#1;main_~up~0#1 := 1;" "assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume 10 == main_~i~0#1;main_~up~0#1 := 0;" [2024-11-12 20:55:11,975 INFO L749 eck$LassoCheckResult]: Loop: "assume !(0 == main_~i~0#1);" "assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume 10 == main_~i~0#1;main_~up~0#1 := 0;" [2024-11-12 20:55:11,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:55:11,975 INFO L85 PathProgramCache]: Analyzing trace with hash 1781274610, now seen corresponding path program 1 times [2024-11-12 20:55:11,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:55:11,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771873313] [2024-11-12 20:55:11,976 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:55:11,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:55:11,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:55:12,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:55:12,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771873313] [2024-11-12 20:55:12,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771873313] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 20:55:12,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1768306109] [2024-11-12 20:55:12,074 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:55:12,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 20:55:12,074 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:12,075 INFO L229 MonitoredProcess]: Starting monitored process 50 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 20:55:12,077 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2024-11-12 20:55:12,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:55:12,114 INFO L256 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-12 20:55:12,115 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:55:12,132 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 20:55:12,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1768306109] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 20:55:12,171 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 20:55:12,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2024-11-12 20:55:12,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382092683] [2024-11-12 20:55:12,171 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 20:55:12,171 INFO L752 eck$LassoCheckResult]: stem already infeasible [2024-11-12 20:55:12,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:55:12,172 INFO L85 PathProgramCache]: Analyzing trace with hash 1606186, now seen corresponding path program 2 times [2024-11-12 20:55:12,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:55:12,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10273542] [2024-11-12 20:55:12,172 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:55:12,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:55:12,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:55:12,175 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 20:55:12,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:55:12,179 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 20:55:12,208 INFO L204 LassoAnalysis]: Preferences: [2024-11-12 20:55:12,208 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-12 20:55:12,208 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-12 20:55:12,208 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-12 20:55:12,208 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-12 20:55:12,208 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:12,208 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-12 20:55:12,209 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-12 20:55:12,209 INFO L132 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration8_Loop [2024-11-12 20:55:12,209 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-12 20:55:12,209 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-12 20:55:12,209 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:12,214 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:12,217 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:12,219 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:12,262 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-12 20:55:12,262 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-12 20:55:12,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:12,263 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:12,264 INFO L229 MonitoredProcess]: Starting monitored process 51 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:55:12,265 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2024-11-12 20:55:12,265 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 20:55:12,265 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:55:12,286 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Ended with exit code 0 [2024-11-12 20:55:12,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:12,286 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:12,287 INFO L229 MonitoredProcess]: Starting monitored process 52 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:55:12,288 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2024-11-12 20:55:12,289 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-12 20:55:12,289 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:55:12,300 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-12 20:55:12,310 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Ended with exit code 0 [2024-11-12 20:55:12,311 INFO L204 LassoAnalysis]: Preferences: [2024-11-12 20:55:12,311 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-12 20:55:12,311 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-12 20:55:12,311 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-12 20:55:12,311 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-12 20:55:12,311 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:12,311 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-12 20:55:12,311 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-12 20:55:12,311 INFO L132 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration8_Loop [2024-11-12 20:55:12,311 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-12 20:55:12,311 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-12 20:55:12,312 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:12,316 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:12,318 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:12,319 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:12,360 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-12 20:55:12,360 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-12 20:55:12,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:12,360 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:12,362 INFO L229 MonitoredProcess]: Starting monitored process 53 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:55:12,362 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2024-11-12 20:55:12,363 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 [2024-11-12 20:55:12,376 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 20:55:12,376 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-12 20:55:12,376 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 20:55:12,376 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 20:55:12,376 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 20:55:12,377 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-12 20:55:12,377 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-12 20:55:12,379 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-12 20:55:12,383 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-12 20:55:12,383 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-12 20:55:12,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:12,383 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:12,385 INFO L229 MonitoredProcess]: Starting monitored process 54 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:55:12,386 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2024-11-12 20:55:12,387 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-12 20:55:12,387 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-12 20:55:12,387 INFO L474 LassoAnalysis]: Proved termination. [2024-11-12 20:55:12,387 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2024-11-12 20:55:12,401 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Ended with exit code 0 [2024-11-12 20:55:12,402 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-12 20:55:12,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:55:12,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:55:12,430 INFO L256 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-12 20:55:12,431 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:55:12,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:55:12,480 INFO L256 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-12 20:55:12,481 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:55:12,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:55:12,492 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-12 20:55:12,493 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 124 states and 156 transitions. cyclomatic complexity: 40 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:55:12,523 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 124 states and 156 transitions. cyclomatic complexity: 40. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 143 states and 182 transitions. Complement of second has 7 states. [2024-11-12 20:55:12,524 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 [2024-11-12 20:55:12,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:55:12,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2024-11-12 20:55:12,524 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 36 letters. Loop has 4 letters. [2024-11-12 20:55:12,525 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 20:55:12,525 INFO L683 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-12 20:55:12,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:55:12,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:55:12,555 INFO L256 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-12 20:55:12,556 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:55:12,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:55:12,600 INFO L256 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-12 20:55:12,600 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:55:12,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:55:12,612 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-12 20:55:12,612 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 124 states and 156 transitions. cyclomatic complexity: 40 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:55:12,644 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 124 states and 156 transitions. cyclomatic complexity: 40. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 153 states and 190 transitions. Complement of second has 7 states. [2024-11-12 20:55:12,645 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 [2024-11-12 20:55:12,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:55:12,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2024-11-12 20:55:12,646 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 36 letters. Loop has 4 letters. [2024-11-12 20:55:12,646 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 20:55:12,646 INFO L683 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-12 20:55:12,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:55:12,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:55:12,675 INFO L256 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-12 20:55:12,676 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:55:12,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:55:12,725 INFO L256 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-12 20:55:12,725 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:55:12,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:55:12,736 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-12 20:55:12,736 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 124 states and 156 transitions. cyclomatic complexity: 40 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:55:12,761 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 124 states and 156 transitions. cyclomatic complexity: 40. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 150 states and 193 transitions. Complement of second has 8 states. [2024-11-12 20:55:12,761 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 [2024-11-12 20:55:12,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:55:12,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2024-11-12 20:55:12,762 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 36 letters. Loop has 4 letters. [2024-11-12 20:55:12,762 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 20:55:12,762 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 40 letters. Loop has 4 letters. [2024-11-12 20:55:12,762 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 20:55:12,762 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 36 letters. Loop has 8 letters. [2024-11-12 20:55:12,763 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 20:55:12,763 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 150 states and 193 transitions. [2024-11-12 20:55:12,764 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 34 [2024-11-12 20:55:12,764 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 150 states to 127 states and 159 transitions. [2024-11-12 20:55:12,765 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2024-11-12 20:55:12,765 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2024-11-12 20:55:12,765 INFO L73 IsDeterministic]: Start isDeterministic. Operand 127 states and 159 transitions. [2024-11-12 20:55:12,765 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-12 20:55:12,765 INFO L218 hiAutomatonCegarLoop]: Abstraction has 127 states and 159 transitions. [2024-11-12 20:55:12,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states and 159 transitions. [2024-11-12 20:55:12,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 87. [2024-11-12 20:55:12,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 87 states have (on average 1.2298850574712643) internal successors, (107), 86 states have internal predecessors, (107), 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) [2024-11-12 20:55:12,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 107 transitions. [2024-11-12 20:55:12,768 INFO L240 hiAutomatonCegarLoop]: Abstraction has 87 states and 107 transitions. [2024-11-12 20:55:12,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:55:12,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-12 20:55:12,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2024-11-12 20:55:12,768 INFO L87 Difference]: Start difference. First operand 87 states and 107 transitions. Second operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 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) [2024-11-12 20:55:12,813 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Ended with exit code 0 [2024-11-12 20:55:12,827 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Forceful destruction successful, exit code 0 [2024-11-12 20:55:12,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 20:55:12,849 INFO L93 Difference]: Finished difference Result 132 states and 161 transitions. [2024-11-12 20:55:12,849 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 132 states and 161 transitions. [2024-11-12 20:55:12,850 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 51 [2024-11-12 20:55:12,851 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 132 states to 124 states and 153 transitions. [2024-11-12 20:55:12,851 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2024-11-12 20:55:12,851 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2024-11-12 20:55:12,851 INFO L73 IsDeterministic]: Start isDeterministic. Operand 124 states and 153 transitions. [2024-11-12 20:55:12,851 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-12 20:55:12,851 INFO L218 hiAutomatonCegarLoop]: Abstraction has 124 states and 153 transitions. [2024-11-12 20:55:12,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states and 153 transitions. [2024-11-12 20:55:12,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 119. [2024-11-12 20:55:12,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 119 states have (on average 1.2352941176470589) internal successors, (147), 118 states have internal predecessors, (147), 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) [2024-11-12 20:55:12,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 147 transitions. [2024-11-12 20:55:12,854 INFO L240 hiAutomatonCegarLoop]: Abstraction has 119 states and 147 transitions. [2024-11-12 20:55:12,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-12 20:55:12,855 INFO L426 stractBuchiCegarLoop]: Abstraction has 119 states and 147 transitions. [2024-11-12 20:55:12,855 INFO L333 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2024-11-12 20:55:12,856 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 119 states and 147 transitions. [2024-11-12 20:55:12,856 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 49 [2024-11-12 20:55:12,856 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-12 20:55:12,856 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-12 20:55:12,857 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-11-12 20:55:12,857 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [12, 11, 11, 6, 6, 1, 1] [2024-11-12 20:55:12,857 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume 10 == main_~i~0#1;main_~up~0#1 := 0;" [2024-11-12 20:55:12,858 INFO L749 eck$LassoCheckResult]: Loop: "assume !(0 == main_~i~0#1);" "assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume 0 == main_~i~0#1;main_~up~0#1 := 1;" "assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume 10 == main_~i~0#1;main_~up~0#1 := 0;" [2024-11-12 20:55:12,858 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:55:12,858 INFO L85 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 1 times [2024-11-12 20:55:12,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:55:12,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96705118] [2024-11-12 20:55:12,858 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:55:12,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:55:12,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:55:12,861 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 20:55:12,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:55:12,862 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 20:55:12,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:55:12,863 INFO L85 PathProgramCache]: Analyzing trace with hash 78762809, now seen corresponding path program 1 times [2024-11-12 20:55:12,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:55:12,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576623117] [2024-11-12 20:55:12,863 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:55:12,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:55:12,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:55:13,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:55:13,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576623117] [2024-11-12 20:55:13,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576623117] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 20:55:13,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [912366942] [2024-11-12 20:55:13,002 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:55:13,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 20:55:13,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:13,004 INFO L229 MonitoredProcess]: Starting monitored process 55 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 20:55:13,006 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process [2024-11-12 20:55:13,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:55:13,044 INFO L256 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-12 20:55:13,045 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:55:13,089 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 20:55:13,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [912366942] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 20:55:13,168 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 20:55:13,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 11 [2024-11-12 20:55:13,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046378455] [2024-11-12 20:55:13,169 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 20:55:13,169 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-12 20:55:13,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:55:13,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-12 20:55:13,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2024-11-12 20:55:13,170 INFO L87 Difference]: Start difference. First operand 119 states and 147 transitions. cyclomatic complexity: 33 Second operand has 12 states, 11 states have (on average 3.8181818181818183) internal successors, (42), 12 states have internal predecessors, (42), 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) [2024-11-12 20:55:13,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 20:55:13,223 INFO L93 Difference]: Finished difference Result 225 states and 276 transitions. [2024-11-12 20:55:13,223 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 225 states and 276 transitions. [2024-11-12 20:55:13,224 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 67 [2024-11-12 20:55:13,225 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 225 states to 225 states and 276 transitions. [2024-11-12 20:55:13,225 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2024-11-12 20:55:13,226 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2024-11-12 20:55:13,226 INFO L73 IsDeterministic]: Start isDeterministic. Operand 225 states and 276 transitions. [2024-11-12 20:55:13,226 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-12 20:55:13,226 INFO L218 hiAutomatonCegarLoop]: Abstraction has 225 states and 276 transitions. [2024-11-12 20:55:13,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states and 276 transitions. [2024-11-12 20:55:13,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 151. [2024-11-12 20:55:13,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 151 states have (on average 1.2119205298013245) internal successors, (183), 150 states have internal predecessors, (183), 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) [2024-11-12 20:55:13,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 183 transitions. [2024-11-12 20:55:13,229 INFO L240 hiAutomatonCegarLoop]: Abstraction has 151 states and 183 transitions. [2024-11-12 20:55:13,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-12 20:55:13,233 INFO L426 stractBuchiCegarLoop]: Abstraction has 151 states and 183 transitions. [2024-11-12 20:55:13,233 INFO L333 stractBuchiCegarLoop]: ======== Iteration 10 ============ [2024-11-12 20:55:13,233 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 151 states and 183 transitions. [2024-11-12 20:55:13,234 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 65 [2024-11-12 20:55:13,234 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-12 20:55:13,234 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-12 20:55:13,235 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-11-12 20:55:13,235 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [16, 15, 15, 10, 6, 1, 1] [2024-11-12 20:55:13,235 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume 10 == main_~i~0#1;main_~up~0#1 := 0;" [2024-11-12 20:55:13,235 INFO L749 eck$LassoCheckResult]: Loop: "assume !(0 == main_~i~0#1);" "assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume 0 == main_~i~0#1;main_~up~0#1 := 1;" "assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume 10 == main_~i~0#1;main_~up~0#1 := 0;" [2024-11-12 20:55:13,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:55:13,235 INFO L85 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 2 times [2024-11-12 20:55:13,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:55:13,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805322392] [2024-11-12 20:55:13,236 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:55:13,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:55:13,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:55:13,238 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 20:55:13,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:55:13,240 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 20:55:13,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:55:13,241 INFO L85 PathProgramCache]: Analyzing trace with hash 666246877, now seen corresponding path program 2 times [2024-11-12 20:55:13,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:55:13,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303056180] [2024-11-12 20:55:13,241 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:55:13,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:55:13,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:55:13,251 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 20:55:13,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:55:13,265 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 20:55:13,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:55:13,265 INFO L85 PathProgramCache]: Analyzing trace with hash 1397659458, now seen corresponding path program 2 times [2024-11-12 20:55:13,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:55:13,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843004477] [2024-11-12 20:55:13,265 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:55:13,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:55:13,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:55:13,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:55:13,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843004477] [2024-11-12 20:55:13,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843004477] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 20:55:13,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2013751818] [2024-11-12 20:55:13,411 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-12 20:55:13,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 20:55:13,411 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:13,413 INFO L229 MonitoredProcess]: Starting monitored process 56 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 20:55:13,414 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Waiting until timeout for monitored process [2024-11-12 20:55:13,438 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-12 20:55:13,438 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-12 20:55:13,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-12 20:55:13,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675880837] [2024-11-12 20:55:13,439 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-12 20:55:13,729 INFO L204 LassoAnalysis]: Preferences: [2024-11-12 20:55:13,729 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-12 20:55:13,729 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-12 20:55:13,729 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-12 20:55:13,730 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-12 20:55:13,730 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:13,730 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-12 20:55:13,730 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-12 20:55:13,730 INFO L132 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration10_Loop [2024-11-12 20:55:13,730 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-12 20:55:13,730 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-12 20:55:13,731 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:13,734 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:13,739 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:13,742 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:13,795 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-12 20:55:13,795 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-12 20:55:13,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:13,796 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:13,797 INFO L229 MonitoredProcess]: Starting monitored process 57 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:55:13,799 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2024-11-12 20:55:13,799 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 20:55:13,799 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:55:13,824 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-12 20:55:13,824 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_15=1} Honda state: {v_rep~unnamed0~0~true_15=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-12 20:55:13,840 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Ended with exit code 0 [2024-11-12 20:55:13,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:13,841 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:13,843 INFO L229 MonitoredProcess]: Starting monitored process 58 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:55:13,844 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2024-11-12 20:55:13,853 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 20:55:13,853 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:55:13,877 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-12 20:55:13,877 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~up~0#1=0} Honda state: {ULTIMATE.start_main_~up~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-12 20:55:13,892 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Forceful destruction successful, exit code 0 [2024-11-12 20:55:13,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:13,893 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:13,895 INFO L229 MonitoredProcess]: Starting monitored process 59 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:55:13,896 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2024-11-12 20:55:13,897 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 20:55:13,897 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:55:13,920 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-12 20:55:13,920 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_15=0} Honda state: {v_rep~unnamed0~0~false_15=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-12 20:55:13,935 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Ended with exit code 0 [2024-11-12 20:55:13,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:13,937 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:13,938 INFO L229 MonitoredProcess]: Starting monitored process 60 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:55:13,939 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2024-11-12 20:55:13,940 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 20:55:13,941 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:55:13,971 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Forceful destruction successful, exit code 0 [2024-11-12 20:55:13,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:13,972 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:13,974 INFO L229 MonitoredProcess]: Starting monitored process 61 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:55:13,977 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2024-11-12 20:55:13,978 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-12 20:55:13,978 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:55:13,994 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-12 20:55:14,010 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Forceful destruction successful, exit code 0 [2024-11-12 20:55:14,010 INFO L204 LassoAnalysis]: Preferences: [2024-11-12 20:55:14,010 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-12 20:55:14,010 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-12 20:55:14,010 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-12 20:55:14,010 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-12 20:55:14,010 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:14,011 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-12 20:55:14,011 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-12 20:55:14,011 INFO L132 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration10_Loop [2024-11-12 20:55:14,011 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-12 20:55:14,011 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-12 20:55:14,011 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:14,014 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:14,019 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:14,024 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:14,080 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-12 20:55:14,080 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-12 20:55:14,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:14,080 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:14,084 INFO L229 MonitoredProcess]: Starting monitored process 62 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:55:14,085 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2024-11-12 20:55:14,086 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 [2024-11-12 20:55:14,100 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 20:55:14,100 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 20:55:14,100 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 20:55:14,100 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 20:55:14,101 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-12 20:55:14,101 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-12 20:55:14,104 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-12 20:55:14,119 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Ended with exit code 0 [2024-11-12 20:55:14,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:14,119 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:14,121 INFO L229 MonitoredProcess]: Starting monitored process 63 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:55:14,122 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2024-11-12 20:55:14,123 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 [2024-11-12 20:55:14,136 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 20:55:14,137 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-12 20:55:14,137 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 20:55:14,137 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-11-12 20:55:14,137 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 20:55:14,138 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2024-11-12 20:55:14,138 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-12 20:55:14,141 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-12 20:55:14,155 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Ended with exit code 0 [2024-11-12 20:55:14,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:14,156 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:14,157 INFO L229 MonitoredProcess]: Starting monitored process 64 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:55:14,158 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process [2024-11-12 20:55:14,159 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 [2024-11-12 20:55:14,171 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 20:55:14,172 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-12 20:55:14,172 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 20:55:14,172 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 20:55:14,172 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 20:55:14,173 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-12 20:55:14,173 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-12 20:55:14,177 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-12 20:55:14,179 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-12 20:55:14,179 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-12 20:55:14,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:14,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:14,183 INFO L229 MonitoredProcess]: Starting monitored process 65 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:55:14,184 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Waiting until timeout for monitored process [2024-11-12 20:55:14,184 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-12 20:55:14,184 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-12 20:55:14,184 INFO L474 LassoAnalysis]: Proved termination. [2024-11-12 20:55:14,184 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -1*ULTIMATE.start_main_~i~0#1 + 8 Supporting invariants [] [2024-11-12 20:55:14,196 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Forceful destruction successful, exit code 0 [2024-11-12 20:55:14,196 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-12 20:55:14,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:55:14,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:55:14,210 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-12 20:55:14,210 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:55:14,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:55:14,236 INFO L256 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-12 20:55:14,237 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:55:14,373 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 309 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2024-11-12 20:55:14,374 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 8 loop predicates [2024-11-12 20:55:14,374 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 151 states and 183 transitions. cyclomatic complexity: 37 Second operand has 10 states, 10 states have (on average 3.4) internal successors, (34), 10 states have internal predecessors, (34), 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) [2024-11-12 20:55:14,667 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 151 states and 183 transitions. cyclomatic complexity: 37. Second operand has 10 states, 10 states have (on average 3.4) internal successors, (34), 10 states have internal predecessors, (34), 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 854 states and 1039 transitions. Complement of second has 31 states. [2024-11-12 20:55:14,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 16 states 1 stem states 14 non-accepting loop states 1 accepting loop states [2024-11-12 20:55:14,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 3.4) internal successors, (34), 10 states have internal predecessors, (34), 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) [2024-11-12 20:55:14,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 79 transitions. [2024-11-12 20:55:14,668 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 16 states and 79 transitions. Stem has 4 letters. Loop has 64 letters. [2024-11-12 20:55:14,669 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 20:55:14,669 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 16 states and 79 transitions. Stem has 68 letters. Loop has 64 letters. [2024-11-12 20:55:14,669 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 20:55:14,669 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 16 states and 79 transitions. Stem has 4 letters. Loop has 128 letters. [2024-11-12 20:55:14,671 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 20:55:14,671 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 854 states and 1039 transitions. [2024-11-12 20:55:14,678 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 65 [2024-11-12 20:55:14,681 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 854 states to 617 states and 745 transitions. [2024-11-12 20:55:14,681 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2024-11-12 20:55:14,681 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 37 [2024-11-12 20:55:14,682 INFO L73 IsDeterministic]: Start isDeterministic. Operand 617 states and 745 transitions. [2024-11-12 20:55:14,682 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-12 20:55:14,682 INFO L218 hiAutomatonCegarLoop]: Abstraction has 617 states and 745 transitions. [2024-11-12 20:55:14,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 617 states and 745 transitions. [2024-11-12 20:55:14,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 617 to 426. [2024-11-12 20:55:14,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 426 states, 426 states have (on average 1.2065727699530517) internal successors, (514), 425 states have internal predecessors, (514), 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) [2024-11-12 20:55:14,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 514 transitions. [2024-11-12 20:55:14,689 INFO L240 hiAutomatonCegarLoop]: Abstraction has 426 states and 514 transitions. [2024-11-12 20:55:14,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:55:14,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-12 20:55:14,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2024-11-12 20:55:14,690 INFO L87 Difference]: Start difference. First operand 426 states and 514 transitions. Second operand has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 9 states have internal predecessors, (34), 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) [2024-11-12 20:55:14,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 20:55:14,742 INFO L93 Difference]: Finished difference Result 306 states and 365 transitions. [2024-11-12 20:55:14,742 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 306 states and 365 transitions. [2024-11-12 20:55:14,744 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 71 [2024-11-12 20:55:14,745 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 306 states to 256 states and 315 transitions. [2024-11-12 20:55:14,745 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2024-11-12 20:55:14,745 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2024-11-12 20:55:14,745 INFO L73 IsDeterministic]: Start isDeterministic. Operand 256 states and 315 transitions. [2024-11-12 20:55:14,746 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-12 20:55:14,746 INFO L218 hiAutomatonCegarLoop]: Abstraction has 256 states and 315 transitions. [2024-11-12 20:55:14,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states and 315 transitions. [2024-11-12 20:55:14,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 159. [2024-11-12 20:55:14,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 159 states have (on average 1.2138364779874213) internal successors, (193), 158 states have internal predecessors, (193), 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) [2024-11-12 20:55:14,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 193 transitions. [2024-11-12 20:55:14,750 INFO L240 hiAutomatonCegarLoop]: Abstraction has 159 states and 193 transitions. [2024-11-12 20:55:14,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-12 20:55:14,751 INFO L426 stractBuchiCegarLoop]: Abstraction has 159 states and 193 transitions. [2024-11-12 20:55:14,751 INFO L333 stractBuchiCegarLoop]: ======== Iteration 11 ============ [2024-11-12 20:55:14,751 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 159 states and 193 transitions. [2024-11-12 20:55:14,751 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 69 [2024-11-12 20:55:14,751 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-12 20:55:14,751 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-12 20:55:14,752 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-11-12 20:55:14,752 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [17, 16, 16, 10, 7, 1, 1] [2024-11-12 20:55:14,752 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume 10 == main_~i~0#1;main_~up~0#1 := 0;" [2024-11-12 20:55:14,752 INFO L749 eck$LassoCheckResult]: Loop: "assume !(0 == main_~i~0#1);" "assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume 0 == main_~i~0#1;main_~up~0#1 := 1;" "assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume 10 == main_~i~0#1;main_~up~0#1 := 0;" [2024-11-12 20:55:14,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:55:14,753 INFO L85 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 3 times [2024-11-12 20:55:14,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:55:14,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509773706] [2024-11-12 20:55:14,753 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:55:14,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:55:14,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:55:14,758 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 20:55:14,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:55:14,759 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 20:55:14,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:55:14,759 INFO L85 PathProgramCache]: Analyzing trace with hash -1310209784, now seen corresponding path program 3 times [2024-11-12 20:55:14,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:55:14,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584694997] [2024-11-12 20:55:14,760 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:55:14,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:55:14,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:55:14,769 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 20:55:14,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:55:14,778 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 20:55:14,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:55:14,779 INFO L85 PathProgramCache]: Analyzing trace with hash -233601299, now seen corresponding path program 3 times [2024-11-12 20:55:14,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:55:14,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283900382] [2024-11-12 20:55:14,780 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:55:14,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:55:14,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:55:14,908 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Forceful destruction successful, exit code 0 [2024-11-12 20:55:14,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:55:14,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283900382] [2024-11-12 20:55:14,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283900382] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 20:55:14,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1610600980] [2024-11-12 20:55:14,938 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-12 20:55:14,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 20:55:14,938 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:14,940 INFO L229 MonitoredProcess]: Starting monitored process 66 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 20:55:14,942 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Waiting until timeout for monitored process [2024-11-12 20:55:14,971 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-12 20:55:14,971 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-12 20:55:14,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-12 20:55:14,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005892201] [2024-11-12 20:55:14,971 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-12 20:55:15,361 INFO L204 LassoAnalysis]: Preferences: [2024-11-12 20:55:15,361 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-12 20:55:15,361 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-12 20:55:15,361 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-12 20:55:15,361 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-12 20:55:15,361 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:15,361 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-12 20:55:15,361 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-12 20:55:15,362 INFO L132 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration11_Loop [2024-11-12 20:55:15,362 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-12 20:55:15,362 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-12 20:55:15,362 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:15,367 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:15,369 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:15,382 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:15,452 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-12 20:55:15,452 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-12 20:55:15,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:15,452 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:15,453 INFO L229 MonitoredProcess]: Starting monitored process 67 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:55:15,454 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Waiting until timeout for monitored process [2024-11-12 20:55:15,455 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 20:55:15,455 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:55:15,472 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-12 20:55:15,472 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~up~0#1=0} Honda state: {ULTIMATE.start_main_~up~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-12 20:55:15,482 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Ended with exit code 0 [2024-11-12 20:55:15,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:15,482 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:15,483 INFO L229 MonitoredProcess]: Starting monitored process 68 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:55:15,484 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Waiting until timeout for monitored process [2024-11-12 20:55:15,485 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 20:55:15,485 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:55:15,502 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-12 20:55:15,502 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_17=1} Honda state: {v_rep~unnamed0~0~true_17=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-12 20:55:15,512 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Forceful destruction successful, exit code 0 [2024-11-12 20:55:15,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:15,512 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:15,513 INFO L229 MonitoredProcess]: Starting monitored process 69 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:55:15,514 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Waiting until timeout for monitored process [2024-11-12 20:55:15,515 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 20:55:15,515 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:55:15,535 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Ended with exit code 0 [2024-11-12 20:55:15,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:15,535 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:15,536 INFO L229 MonitoredProcess]: Starting monitored process 70 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:55:15,537 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Waiting until timeout for monitored process [2024-11-12 20:55:15,537 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-12 20:55:15,538 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:55:15,549 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-12 20:55:15,559 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Ended with exit code 0 [2024-11-12 20:55:15,559 INFO L204 LassoAnalysis]: Preferences: [2024-11-12 20:55:15,559 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-12 20:55:15,559 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-12 20:55:15,559 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-12 20:55:15,559 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-12 20:55:15,559 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:15,559 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-12 20:55:15,559 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-12 20:55:15,559 INFO L132 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration11_Loop [2024-11-12 20:55:15,560 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-12 20:55:15,560 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-12 20:55:15,560 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:15,565 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:15,566 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:15,577 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:15,637 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-12 20:55:15,637 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-12 20:55:15,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:15,637 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:15,640 INFO L229 MonitoredProcess]: Starting monitored process 71 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:55:15,641 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Waiting until timeout for monitored process [2024-11-12 20:55:15,641 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 [2024-11-12 20:55:15,651 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 20:55:15,651 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-12 20:55:15,651 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 20:55:15,651 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-11-12 20:55:15,651 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 20:55:15,652 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2024-11-12 20:55:15,652 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-12 20:55:15,654 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-12 20:55:15,664 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Ended with exit code 0 [2024-11-12 20:55:15,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:15,664 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:15,665 INFO L229 MonitoredProcess]: Starting monitored process 72 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:55:15,666 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Waiting until timeout for monitored process [2024-11-12 20:55:15,667 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 [2024-11-12 20:55:15,676 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 20:55:15,677 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 20:55:15,677 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 20:55:15,677 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 20:55:15,678 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-12 20:55:15,678 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-12 20:55:15,680 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-12 20:55:15,690 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Ended with exit code 0 [2024-11-12 20:55:15,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:15,691 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:15,691 INFO L229 MonitoredProcess]: Starting monitored process 73 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:55:15,692 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Waiting until timeout for monitored process [2024-11-12 20:55:15,700 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 [2024-11-12 20:55:15,711 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 20:55:15,711 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-12 20:55:15,711 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 20:55:15,711 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 20:55:15,712 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 20:55:15,712 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-12 20:55:15,712 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-12 20:55:15,717 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-12 20:55:15,719 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-12 20:55:15,719 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-12 20:55:15,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:15,719 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:15,721 INFO L229 MonitoredProcess]: Starting monitored process 74 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:55:15,722 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Waiting until timeout for monitored process [2024-11-12 20:55:15,723 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-12 20:55:15,723 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-12 20:55:15,723 INFO L474 LassoAnalysis]: Proved termination. [2024-11-12 20:55:15,723 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 17 Supporting invariants [] [2024-11-12 20:55:15,740 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Forceful destruction successful, exit code 0 [2024-11-12 20:55:15,741 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-12 20:55:15,755 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:55:15,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:55:15,758 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-12 20:55:15,758 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:55:15,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:55:15,779 INFO L256 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-12 20:55:15,780 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:55:15,912 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 373 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2024-11-12 20:55:15,912 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 9 loop predicates [2024-11-12 20:55:15,913 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 159 states and 193 transitions. cyclomatic complexity: 39 Second operand has 11 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 11 states have internal predecessors, (38), 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) [2024-11-12 20:55:16,028 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Forceful destruction successful, exit code 0 [2024-11-12 20:55:16,294 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 159 states and 193 transitions. cyclomatic complexity: 39. Second operand has 11 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 11 states have internal predecessors, (38), 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 1042 states and 1269 transitions. Complement of second has 35 states. [2024-11-12 20:55:16,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 18 states 1 stem states 16 non-accepting loop states 1 accepting loop states [2024-11-12 20:55:16,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 11 states have internal predecessors, (38), 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) [2024-11-12 20:55:16,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 89 transitions. [2024-11-12 20:55:16,296 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 18 states and 89 transitions. Stem has 4 letters. Loop has 68 letters. [2024-11-12 20:55:16,297 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 20:55:16,297 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 18 states and 89 transitions. Stem has 72 letters. Loop has 68 letters. [2024-11-12 20:55:16,297 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 20:55:16,297 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 18 states and 89 transitions. Stem has 4 letters. Loop has 136 letters. [2024-11-12 20:55:16,300 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 20:55:16,300 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1042 states and 1269 transitions. [2024-11-12 20:55:16,306 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 69 [2024-11-12 20:55:16,310 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1042 states to 724 states and 876 transitions. [2024-11-12 20:55:16,310 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2024-11-12 20:55:16,310 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 41 [2024-11-12 20:55:16,311 INFO L73 IsDeterministic]: Start isDeterministic. Operand 724 states and 876 transitions. [2024-11-12 20:55:16,315 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-12 20:55:16,315 INFO L218 hiAutomatonCegarLoop]: Abstraction has 724 states and 876 transitions. [2024-11-12 20:55:16,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 724 states and 876 transitions. [2024-11-12 20:55:16,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 724 to 472. [2024-11-12 20:55:16,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 472 states, 472 states have (on average 1.2076271186440677) internal successors, (570), 471 states have internal predecessors, (570), 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) [2024-11-12 20:55:16,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 570 transitions. [2024-11-12 20:55:16,325 INFO L240 hiAutomatonCegarLoop]: Abstraction has 472 states and 570 transitions. [2024-11-12 20:55:16,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:55:16,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-12 20:55:16,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2024-11-12 20:55:16,326 INFO L87 Difference]: Start difference. First operand 472 states and 570 transitions. Second operand has 10 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 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) [2024-11-12 20:55:16,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 20:55:16,379 INFO L93 Difference]: Finished difference Result 330 states and 393 transitions. [2024-11-12 20:55:16,379 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 330 states and 393 transitions. [2024-11-12 20:55:16,381 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 75 [2024-11-12 20:55:16,383 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 330 states to 272 states and 335 transitions. [2024-11-12 20:55:16,383 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2024-11-12 20:55:16,383 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2024-11-12 20:55:16,383 INFO L73 IsDeterministic]: Start isDeterministic. Operand 272 states and 335 transitions. [2024-11-12 20:55:16,383 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-12 20:55:16,383 INFO L218 hiAutomatonCegarLoop]: Abstraction has 272 states and 335 transitions. [2024-11-12 20:55:16,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states and 335 transitions. [2024-11-12 20:55:16,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 167. [2024-11-12 20:55:16,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 167 states have (on average 1.215568862275449) internal successors, (203), 166 states have internal predecessors, (203), 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) [2024-11-12 20:55:16,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 203 transitions. [2024-11-12 20:55:16,388 INFO L240 hiAutomatonCegarLoop]: Abstraction has 167 states and 203 transitions. [2024-11-12 20:55:16,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-12 20:55:16,389 INFO L426 stractBuchiCegarLoop]: Abstraction has 167 states and 203 transitions. [2024-11-12 20:55:16,389 INFO L333 stractBuchiCegarLoop]: ======== Iteration 12 ============ [2024-11-12 20:55:16,390 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 167 states and 203 transitions. [2024-11-12 20:55:16,391 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 73 [2024-11-12 20:55:16,391 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-12 20:55:16,391 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-12 20:55:16,392 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-11-12 20:55:16,392 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [18, 17, 17, 10, 8, 1, 1] [2024-11-12 20:55:16,392 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume 10 == main_~i~0#1;main_~up~0#1 := 0;" [2024-11-12 20:55:16,392 INFO L749 eck$LassoCheckResult]: Loop: "assume !(0 == main_~i~0#1);" "assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume 0 == main_~i~0#1;main_~up~0#1 := 1;" "assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume 10 == main_~i~0#1;main_~up~0#1 := 0;" [2024-11-12 20:55:16,392 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:55:16,393 INFO L85 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 4 times [2024-11-12 20:55:16,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:55:16,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526630563] [2024-11-12 20:55:16,393 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:55:16,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:55:16,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:55:16,397 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 20:55:16,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:55:16,398 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 20:55:16,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:55:16,399 INFO L85 PathProgramCache]: Analyzing trace with hash 429024691, now seen corresponding path program 4 times [2024-11-12 20:55:16,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:55:16,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4686484] [2024-11-12 20:55:16,399 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:55:16,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:55:16,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:55:16,411 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 20:55:16,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:55:16,422 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 20:55:16,422 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:55:16,422 INFO L85 PathProgramCache]: Analyzing trace with hash -1070421736, now seen corresponding path program 4 times [2024-11-12 20:55:16,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:55:16,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313079634] [2024-11-12 20:55:16,423 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:55:16,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:55:16,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:55:16,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:55:16,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313079634] [2024-11-12 20:55:16,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313079634] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 20:55:16,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [746428337] [2024-11-12 20:55:16,565 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-12 20:55:16,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 20:55:16,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:16,567 INFO L229 MonitoredProcess]: Starting monitored process 75 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 20:55:16,568 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Waiting until timeout for monitored process [2024-11-12 20:55:16,595 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-12 20:55:16,595 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-12 20:55:16,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-12 20:55:16,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508275241] [2024-11-12 20:55:16,595 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-12 20:55:16,938 INFO L204 LassoAnalysis]: Preferences: [2024-11-12 20:55:16,938 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-12 20:55:16,938 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-12 20:55:16,938 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-12 20:55:16,938 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-12 20:55:16,938 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:16,938 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-12 20:55:16,938 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-12 20:55:16,939 INFO L132 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration12_Loop [2024-11-12 20:55:16,939 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-12 20:55:16,939 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-12 20:55:16,939 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:16,953 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:16,956 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:16,957 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:16,994 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-12 20:55:16,994 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-12 20:55:16,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:16,994 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:16,996 INFO L229 MonitoredProcess]: Starting monitored process 76 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:55:16,997 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Waiting until timeout for monitored process [2024-11-12 20:55:16,998 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 20:55:16,998 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:55:17,025 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Ended with exit code 0 [2024-11-12 20:55:17,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:17,025 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:17,026 INFO L229 MonitoredProcess]: Starting monitored process 77 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:55:17,027 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Waiting until timeout for monitored process [2024-11-12 20:55:17,028 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-12 20:55:17,028 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:55:17,040 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-12 20:55:17,050 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Ended with exit code 0 [2024-11-12 20:55:17,050 INFO L204 LassoAnalysis]: Preferences: [2024-11-12 20:55:17,050 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-12 20:55:17,050 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-12 20:55:17,050 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-12 20:55:17,050 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-12 20:55:17,051 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:17,051 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-12 20:55:17,051 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-12 20:55:17,051 INFO L132 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration12_Loop [2024-11-12 20:55:17,051 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-12 20:55:17,051 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-12 20:55:17,051 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:17,056 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:17,057 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:17,059 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:17,096 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-12 20:55:17,096 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-12 20:55:17,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:17,096 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:17,097 INFO L229 MonitoredProcess]: Starting monitored process 78 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:55:17,098 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Waiting until timeout for monitored process [2024-11-12 20:55:17,100 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 [2024-11-12 20:55:17,110 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 20:55:17,110 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-12 20:55:17,110 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 20:55:17,110 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 20:55:17,110 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 20:55:17,111 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-12 20:55:17,111 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-12 20:55:17,113 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-12 20:55:17,115 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-12 20:55:17,115 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-12 20:55:17,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:17,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:17,117 INFO L229 MonitoredProcess]: Starting monitored process 79 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:55:17,117 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Waiting until timeout for monitored process [2024-11-12 20:55:17,118 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-12 20:55:17,118 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-12 20:55:17,118 INFO L474 LassoAnalysis]: Proved termination. [2024-11-12 20:55:17,118 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -1*ULTIMATE.start_main_~i~0#1 + 9 Supporting invariants [] [2024-11-12 20:55:17,128 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Ended with exit code 0 [2024-11-12 20:55:17,129 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-12 20:55:17,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:55:17,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:55:17,142 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-12 20:55:17,142 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:55:17,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:55:17,168 INFO L256 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-12 20:55:17,169 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:55:17,320 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 441 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2024-11-12 20:55:17,321 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 10 loop predicates [2024-11-12 20:55:17,321 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 167 states and 203 transitions. cyclomatic complexity: 41 Second operand has 12 states, 12 states have (on average 3.5) internal successors, (42), 12 states have internal predecessors, (42), 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) [2024-11-12 20:55:17,683 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 167 states and 203 transitions. cyclomatic complexity: 41. Second operand has 12 states, 12 states have (on average 3.5) internal successors, (42), 12 states have internal predecessors, (42), 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 1254 states and 1529 transitions. Complement of second has 39 states. [2024-11-12 20:55:17,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 20 states 1 stem states 18 non-accepting loop states 1 accepting loop states [2024-11-12 20:55:17,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 3.5) internal successors, (42), 12 states have internal predecessors, (42), 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) [2024-11-12 20:55:17,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 99 transitions. [2024-11-12 20:55:17,684 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 20 states and 99 transitions. Stem has 4 letters. Loop has 72 letters. [2024-11-12 20:55:17,684 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 20:55:17,685 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 20 states and 99 transitions. Stem has 76 letters. Loop has 72 letters. [2024-11-12 20:55:17,685 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 20:55:17,685 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 20 states and 99 transitions. Stem has 4 letters. Loop has 144 letters. [2024-11-12 20:55:17,686 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 20:55:17,686 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1254 states and 1529 transitions. [2024-11-12 20:55:17,692 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 73 [2024-11-12 20:55:17,695 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1254 states to 843 states and 1022 transitions. [2024-11-12 20:55:17,695 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2024-11-12 20:55:17,696 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 45 [2024-11-12 20:55:17,696 INFO L73 IsDeterministic]: Start isDeterministic. Operand 843 states and 1022 transitions. [2024-11-12 20:55:17,696 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-12 20:55:17,696 INFO L218 hiAutomatonCegarLoop]: Abstraction has 843 states and 1022 transitions. [2024-11-12 20:55:17,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 843 states and 1022 transitions. [2024-11-12 20:55:17,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 843 to 522. [2024-11-12 20:55:17,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 522 states, 522 states have (on average 1.2088122605363985) internal successors, (631), 521 states have internal predecessors, (631), 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) [2024-11-12 20:55:17,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 522 states and 631 transitions. [2024-11-12 20:55:17,704 INFO L240 hiAutomatonCegarLoop]: Abstraction has 522 states and 631 transitions. [2024-11-12 20:55:17,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:55:17,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-12 20:55:17,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2024-11-12 20:55:17,705 INFO L87 Difference]: Start difference. First operand 522 states and 631 transitions. Second operand has 11 states, 11 states have (on average 3.8181818181818183) internal successors, (42), 11 states have internal predecessors, (42), 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) [2024-11-12 20:55:17,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 20:55:17,760 INFO L93 Difference]: Finished difference Result 354 states and 421 transitions. [2024-11-12 20:55:17,760 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 354 states and 421 transitions. [2024-11-12 20:55:17,762 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 79 [2024-11-12 20:55:17,763 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 354 states to 288 states and 355 transitions. [2024-11-12 20:55:17,763 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2024-11-12 20:55:17,763 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2024-11-12 20:55:17,764 INFO L73 IsDeterministic]: Start isDeterministic. Operand 288 states and 355 transitions. [2024-11-12 20:55:17,764 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-12 20:55:17,764 INFO L218 hiAutomatonCegarLoop]: Abstraction has 288 states and 355 transitions. [2024-11-12 20:55:17,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states and 355 transitions. [2024-11-12 20:55:17,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 175. [2024-11-12 20:55:17,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 175 states have (on average 1.217142857142857) internal successors, (213), 174 states have internal predecessors, (213), 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) [2024-11-12 20:55:17,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 213 transitions. [2024-11-12 20:55:17,767 INFO L240 hiAutomatonCegarLoop]: Abstraction has 175 states and 213 transitions. [2024-11-12 20:55:17,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-12 20:55:17,768 INFO L426 stractBuchiCegarLoop]: Abstraction has 175 states and 213 transitions. [2024-11-12 20:55:17,768 INFO L333 stractBuchiCegarLoop]: ======== Iteration 13 ============ [2024-11-12 20:55:17,768 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 175 states and 213 transitions. [2024-11-12 20:55:17,769 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 77 [2024-11-12 20:55:17,769 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-12 20:55:17,769 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-12 20:55:17,770 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-11-12 20:55:17,770 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [19, 18, 18, 10, 9, 1, 1] [2024-11-12 20:55:17,770 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume 10 == main_~i~0#1;main_~up~0#1 := 0;" [2024-11-12 20:55:17,770 INFO L749 eck$LassoCheckResult]: Loop: "assume !(0 == main_~i~0#1);" "assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume 0 == main_~i~0#1;main_~up~0#1 := 1;" "assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume 10 == main_~i~0#1;main_~up~0#1 := 0;" [2024-11-12 20:55:17,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:55:17,771 INFO L85 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 5 times [2024-11-12 20:55:17,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:55:17,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371849069] [2024-11-12 20:55:17,771 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:55:17,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:55:17,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:55:17,774 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 20:55:17,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:55:17,775 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 20:55:17,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:55:17,775 INFO L85 PathProgramCache]: Analyzing trace with hash 1006154974, now seen corresponding path program 5 times [2024-11-12 20:55:17,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:55:17,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414715767] [2024-11-12 20:55:17,776 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:55:17,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:55:17,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:55:17,783 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 20:55:17,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:55:17,790 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 20:55:17,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:55:17,791 INFO L85 PathProgramCache]: Analyzing trace with hash 1213119939, now seen corresponding path program 5 times [2024-11-12 20:55:17,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:55:17,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856993450] [2024-11-12 20:55:17,791 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:55:17,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:55:17,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:55:17,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:55:17,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856993450] [2024-11-12 20:55:17,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856993450] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 20:55:17,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [815189842] [2024-11-12 20:55:17,939 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-12 20:55:17,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 20:55:17,940 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:17,941 INFO L229 MonitoredProcess]: Starting monitored process 80 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 20:55:17,942 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (80)] Waiting until timeout for monitored process [2024-11-12 20:55:17,967 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-12 20:55:17,967 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-12 20:55:17,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-12 20:55:17,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382623310] [2024-11-12 20:55:17,968 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-12 20:55:18,021 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Ended with exit code 0 [2024-11-12 20:55:18,436 INFO L204 LassoAnalysis]: Preferences: [2024-11-12 20:55:18,437 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-12 20:55:18,437 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-12 20:55:18,437 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-12 20:55:18,437 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-12 20:55:18,437 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:18,437 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-12 20:55:18,437 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-12 20:55:18,437 INFO L132 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration13_Loop [2024-11-12 20:55:18,437 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-12 20:55:18,437 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-12 20:55:18,438 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:18,443 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:18,446 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:18,448 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:18,495 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-12 20:55:18,496 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-12 20:55:18,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:18,496 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:18,498 INFO L229 MonitoredProcess]: Starting monitored process 81 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:55:18,499 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Waiting until timeout for monitored process [2024-11-12 20:55:18,499 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 20:55:18,499 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:55:18,522 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-12 20:55:18,522 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~up~0#1=0} Honda state: {ULTIMATE.start_main_~up~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-12 20:55:18,536 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Forceful destruction successful, exit code 0 [2024-11-12 20:55:18,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:18,537 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:18,538 INFO L229 MonitoredProcess]: Starting monitored process 82 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:55:18,539 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Waiting until timeout for monitored process [2024-11-12 20:55:18,540 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 20:55:18,540 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:55:18,563 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-12 20:55:18,563 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_21=0} Honda state: {v_rep~unnamed0~0~false_21=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-12 20:55:18,577 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Ended with exit code 0 [2024-11-12 20:55:18,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:18,578 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:18,580 INFO L229 MonitoredProcess]: Starting monitored process 83 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:55:18,581 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (83)] Waiting until timeout for monitored process [2024-11-12 20:55:18,582 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 20:55:18,582 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:55:18,603 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-12 20:55:18,604 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_21=1} Honda state: {v_rep~unnamed0~0~true_21=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-12 20:55:18,618 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (83)] Forceful destruction successful, exit code 0 [2024-11-12 20:55:18,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:18,618 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:18,620 INFO L229 MonitoredProcess]: Starting monitored process 84 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:55:18,621 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (84)] Waiting until timeout for monitored process [2024-11-12 20:55:18,622 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 20:55:18,622 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:55:18,651 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (84)] Forceful destruction successful, exit code 0 [2024-11-12 20:55:18,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:18,652 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:18,654 INFO L229 MonitoredProcess]: Starting monitored process 85 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:55:18,655 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (85)] Waiting until timeout for monitored process [2024-11-12 20:55:18,656 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-12 20:55:18,656 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:55:18,671 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-12 20:55:18,685 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (85)] Forceful destruction successful, exit code 0 [2024-11-12 20:55:18,686 INFO L204 LassoAnalysis]: Preferences: [2024-11-12 20:55:18,686 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-12 20:55:18,686 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-12 20:55:18,686 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-12 20:55:18,686 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-12 20:55:18,686 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:18,686 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-12 20:55:18,686 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-12 20:55:18,686 INFO L132 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration13_Loop [2024-11-12 20:55:18,686 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-12 20:55:18,686 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-12 20:55:18,687 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:18,692 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:18,695 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:18,697 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:55:18,745 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-12 20:55:18,746 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-12 20:55:18,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:18,746 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:18,748 INFO L229 MonitoredProcess]: Starting monitored process 86 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:55:18,749 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (86)] Waiting until timeout for monitored process [2024-11-12 20:55:18,750 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 [2024-11-12 20:55:18,762 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 20:55:18,763 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-12 20:55:18,763 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 20:55:18,763 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-11-12 20:55:18,763 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 20:55:18,764 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2024-11-12 20:55:18,764 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-12 20:55:18,766 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-12 20:55:18,780 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (86)] Ended with exit code 0 [2024-11-12 20:55:18,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:18,781 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:18,782 INFO L229 MonitoredProcess]: Starting monitored process 87 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:55:18,784 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (87)] Waiting until timeout for monitored process [2024-11-12 20:55:18,784 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 [2024-11-12 20:55:18,797 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 20:55:18,797 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 20:55:18,797 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 20:55:18,797 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 20:55:18,799 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-12 20:55:18,799 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-12 20:55:18,803 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-12 20:55:18,817 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (87)] Forceful destruction successful, exit code 0 [2024-11-12 20:55:18,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:18,818 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:18,819 INFO L229 MonitoredProcess]: Starting monitored process 88 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:55:18,821 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (88)] Waiting until timeout for monitored process [2024-11-12 20:55:18,822 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 [2024-11-12 20:55:18,834 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 20:55:18,834 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 20:55:18,834 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 20:55:18,834 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 20:55:18,836 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-12 20:55:18,836 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-12 20:55:18,841 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-12 20:55:18,855 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (88)] Forceful destruction successful, exit code 0 [2024-11-12 20:55:18,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:18,856 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:18,857 INFO L229 MonitoredProcess]: Starting monitored process 89 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:55:18,859 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (89)] Waiting until timeout for monitored process [2024-11-12 20:55:18,860 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 [2024-11-12 20:55:18,872 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 20:55:18,873 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-12 20:55:18,873 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 20:55:18,873 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 20:55:18,873 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 20:55:18,874 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-12 20:55:18,874 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-12 20:55:18,876 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-12 20:55:18,879 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-12 20:55:18,879 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-12 20:55:18,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:55:18,880 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:55:18,881 INFO L229 MonitoredProcess]: Starting monitored process 90 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:55:18,882 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (90)] Waiting until timeout for monitored process [2024-11-12 20:55:18,883 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-12 20:55:18,883 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-12 20:55:18,884 INFO L474 LassoAnalysis]: Proved termination. [2024-11-12 20:55:18,884 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 19 Supporting invariants [] [2024-11-12 20:55:18,898 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (89)] Ended with exit code 0 [2024-11-12 20:55:18,899 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-12 20:55:18,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:55:18,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:55:18,916 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-12 20:55:18,916 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:55:18,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:55:18,939 INFO L256 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-12 20:55:18,940 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:55:19,179 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 513 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2024-11-12 20:55:19,179 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 11 loop predicates [2024-11-12 20:55:19,179 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 175 states and 213 transitions. cyclomatic complexity: 43 Second operand has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 13 states have internal predecessors, (46), 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) [2024-11-12 20:55:19,539 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (90)] Ended with exit code 0 [2024-11-12 20:55:19,717 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 175 states and 213 transitions. cyclomatic complexity: 43. Second operand has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 13 states have internal predecessors, (46), 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 1490 states and 1820 transitions. Complement of second has 43 states. [2024-11-12 20:55:19,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 22 states 1 stem states 20 non-accepting loop states 1 accepting loop states [2024-11-12 20:55:19,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 13 states have internal predecessors, (46), 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) [2024-11-12 20:55:19,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 109 transitions. [2024-11-12 20:55:19,719 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 22 states and 109 transitions. Stem has 4 letters. Loop has 76 letters. [2024-11-12 20:55:19,719 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 20:55:19,719 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 22 states and 109 transitions. Stem has 80 letters. Loop has 76 letters. [2024-11-12 20:55:19,719 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 20:55:19,719 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 22 states and 109 transitions. Stem has 4 letters. Loop has 152 letters. [2024-11-12 20:55:19,720 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 20:55:19,720 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1490 states and 1820 transitions. [2024-11-12 20:55:19,726 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 77 [2024-11-12 20:55:19,730 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1490 states to 974 states and 1184 transitions. [2024-11-12 20:55:19,730 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2024-11-12 20:55:19,730 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 49 [2024-11-12 20:55:19,730 INFO L73 IsDeterministic]: Start isDeterministic. Operand 974 states and 1184 transitions. [2024-11-12 20:55:19,730 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-12 20:55:19,730 INFO L218 hiAutomatonCegarLoop]: Abstraction has 974 states and 1184 transitions. [2024-11-12 20:55:19,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 974 states and 1184 transitions. [2024-11-12 20:55:19,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 974 to 576. [2024-11-12 20:55:19,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 576 states have (on average 1.2100694444444444) internal successors, (697), 575 states have internal predecessors, (697), 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) [2024-11-12 20:55:19,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 697 transitions. [2024-11-12 20:55:19,740 INFO L240 hiAutomatonCegarLoop]: Abstraction has 576 states and 697 transitions. [2024-11-12 20:55:19,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:55:19,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-12 20:55:19,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2024-11-12 20:55:19,741 INFO L87 Difference]: Start difference. First operand 576 states and 697 transitions. Second operand has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 12 states have internal predecessors, (46), 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) [2024-11-12 20:55:19,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 20:55:19,798 INFO L93 Difference]: Finished difference Result 378 states and 449 transitions. [2024-11-12 20:55:19,798 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 378 states and 449 transitions. [2024-11-12 20:55:19,799 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 83 [2024-11-12 20:55:19,800 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 378 states to 304 states and 375 transitions. [2024-11-12 20:55:19,800 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2024-11-12 20:55:19,801 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2024-11-12 20:55:19,801 INFO L73 IsDeterministic]: Start isDeterministic. Operand 304 states and 375 transitions. [2024-11-12 20:55:19,801 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-12 20:55:19,801 INFO L218 hiAutomatonCegarLoop]: Abstraction has 304 states and 375 transitions. [2024-11-12 20:55:19,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states and 375 transitions. [2024-11-12 20:55:19,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 183. [2024-11-12 20:55:19,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 183 states have (on average 1.2185792349726776) internal successors, (223), 182 states have internal predecessors, (223), 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) [2024-11-12 20:55:19,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 223 transitions. [2024-11-12 20:55:19,805 INFO L240 hiAutomatonCegarLoop]: Abstraction has 183 states and 223 transitions. [2024-11-12 20:55:19,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-12 20:55:19,805 INFO L426 stractBuchiCegarLoop]: Abstraction has 183 states and 223 transitions. [2024-11-12 20:55:19,805 INFO L333 stractBuchiCegarLoop]: ======== Iteration 14 ============ [2024-11-12 20:55:19,806 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 183 states and 223 transitions. [2024-11-12 20:55:19,806 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 81 [2024-11-12 20:55:19,806 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-12 20:55:19,806 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-12 20:55:19,808 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-11-12 20:55:19,808 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [20, 19, 19, 10, 10, 1, 1] [2024-11-12 20:55:19,808 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume 10 == main_~i~0#1;main_~up~0#1 := 0;" [2024-11-12 20:55:19,808 INFO L749 eck$LassoCheckResult]: Loop: "assume !(0 == main_~i~0#1);" "assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume 0 == main_~i~0#1;main_~up~0#1 := 1;" "assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume !(10 == main_~i~0#1);" "assume !(0 == main_~i~0#1);" "assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1;" "assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10);" "assume 10 == main_~i~0#1;main_~up~0#1 := 0;" [2024-11-12 20:55:19,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:55:19,809 INFO L85 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 6 times [2024-11-12 20:55:19,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:55:19,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330648442] [2024-11-12 20:55:19,809 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:55:19,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:55:19,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:55:19,812 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 20:55:19,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:55:19,813 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 20:55:19,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:55:19,813 INFO L85 PathProgramCache]: Analyzing trace with hash 385709705, now seen corresponding path program 6 times [2024-11-12 20:55:19,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:55:19,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118663557] [2024-11-12 20:55:19,814 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:55:19,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:55:19,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:55:19,822 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 20:55:19,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:55:19,830 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 20:55:19,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:55:19,831 INFO L85 PathProgramCache]: Analyzing trace with hash -2052422418, now seen corresponding path program 6 times [2024-11-12 20:55:19,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:55:19,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746732171] [2024-11-12 20:55:19,832 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:55:19,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:55:19,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:55:19,840 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 20:55:19,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:55:19,852 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 20:55:20,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:55:20,282 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 20:55:20,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:55:20,314 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 12.11 08:55:20 BoogieIcfgContainer [2024-11-12 20:55:20,314 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-12 20:55:20,314 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-12 20:55:20,314 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-12 20:55:20,315 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-12 20:55:20,315 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 08:55:07" (3/4) ... [2024-11-12 20:55:20,316 INFO L139 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-12 20:55:20,363 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-12 20:55:20,363 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-12 20:55:20,364 INFO L158 Benchmark]: Toolchain (without parser) took 13771.61ms. Allocated memory was 144.7MB in the beginning and 226.5MB in the end (delta: 81.8MB). Free memory was 88.7MB in the beginning and 81.5MB in the end (delta: 7.2MB). Peak memory consumption was 90.1MB. Max. memory is 16.1GB. [2024-11-12 20:55:20,364 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 144.7MB. Free memory is still 106.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-12 20:55:20,364 INFO L158 Benchmark]: CACSL2BoogieTranslator took 225.17ms. Allocated memory is still 144.7MB. Free memory was 88.4MB in the beginning and 76.9MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-12 20:55:20,364 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.07ms. Allocated memory is still 144.7MB. Free memory was 76.9MB in the beginning and 75.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-12 20:55:20,365 INFO L158 Benchmark]: Boogie Preprocessor took 29.05ms. Allocated memory is still 144.7MB. Free memory was 75.4MB in the beginning and 74.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-12 20:55:20,368 INFO L158 Benchmark]: RCFGBuilder took 250.31ms. Allocated memory is still 144.7MB. Free memory was 74.0MB in the beginning and 64.9MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-12 20:55:20,369 INFO L158 Benchmark]: BuchiAutomizer took 13186.37ms. Allocated memory was 144.7MB in the beginning and 226.5MB in the end (delta: 81.8MB). Free memory was 64.9MB in the beginning and 85.7MB in the end (delta: -20.8MB). Peak memory consumption was 64.9MB. Max. memory is 16.1GB. [2024-11-12 20:55:20,369 INFO L158 Benchmark]: Witness Printer took 48.76ms. Allocated memory is still 226.5MB. Free memory was 85.7MB in the beginning and 81.5MB in the end (delta: 4.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-12 20:55:20,370 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 144.7MB. Free memory is still 106.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 225.17ms. Allocated memory is still 144.7MB. Free memory was 88.4MB in the beginning and 76.9MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.07ms. Allocated memory is still 144.7MB. Free memory was 76.9MB in the beginning and 75.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 29.05ms. Allocated memory is still 144.7MB. Free memory was 75.4MB in the beginning and 74.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 250.31ms. Allocated memory is still 144.7MB. Free memory was 74.0MB in the beginning and 64.9MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 13186.37ms. Allocated memory was 144.7MB in the beginning and 226.5MB in the end (delta: 81.8MB). Free memory was 64.9MB in the beginning and 85.7MB in the end (delta: -20.8MB). Peak memory consumption was 64.9MB. Max. memory is 16.1GB. * Witness Printer took 48.76ms. Allocated memory is still 226.5MB. Free memory was 85.7MB in the beginning and 81.5MB in the end (delta: 4.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 21 terminating modules (10 trivial, 9 deterministic, 2 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function (((long) -2 * i) + 1) and consists of 5 locations. One deterministic module has affine ranking function (((long) -2 * i) + 19) and consists of 4 locations. One deterministic module has affine ranking function i and consists of 4 locations. One deterministic module has affine ranking function (((long) -2 * i) + 1) and consists of 4 locations. One deterministic module has affine ranking function i and consists of 4 locations. One deterministic module has affine ranking function (((long) -1 * i) + 8) and consists of 16 locations. One deterministic module has affine ranking function (((long) -2 * i) + 17) and consists of 18 locations. One deterministic module has affine ranking function (((long) -1 * i) + 9) and consists of 20 locations. One deterministic module has affine ranking function (((long) -2 * i) + 19) and consists of 22 locations. One nondeterministic module has affine ranking function (((long) -2 * i) + 19) and consists of 4 locations. One nondeterministic module has affine ranking function i and consists of 4 locations. 10 modules have a trivial ranking function, the largest among these consists of 12 locations. The remainder module has 183 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 13.1s and 14 iterations. TraceHistogramMax:20. Analysis of lassos took 8.7s. Construction of modules took 0.9s. Büchi inclusion checks took 3.1s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 21. Automata minimization 0.1s AutomataMinimizationTime, 21 MinimizatonAttempts, 1825 StatesRemovedByMinimization, 21 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [9, 0, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 684/2320 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 583 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 568 mSDsluCounter, 238 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 36 mSDsCounter, 158 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1479 IncrementalHoareTripleChecker+Invalid, 1637 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 158 mSolverCounterUnsat, 202 mSDtfsCounter, 1479 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT3 conc0 concLT5 SILN0 SILU0 SILI1 SILT3 lasso0 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax174 hnf100 lsp41 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq182 hnf93 smp89 dnf131 smp95 tf109 neg100 sie113 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 31ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 18 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 11 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.1s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 15]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L6] int i; [L7] int up; [L8] i = __VERIFIER_nondet_int() [L9] up = 0 VAL [up=0] [L11] COND TRUE 0 <= i && i <= 10 VAL [i=10, up=0] [L12] COND TRUE i == 10 [L13] up = 0 VAL [i=10, up=0] Loop: [L15] COND FALSE !(i == 0) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND TRUE i == 0 [L16] up = 1 [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND TRUE i == 10 [L13] up = 0 End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 15]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] int up; [L8] i = __VERIFIER_nondet_int() [L9] up = 0 VAL [up=0] [L11] COND TRUE 0 <= i && i <= 10 VAL [i=10, up=0] [L12] COND TRUE i == 10 [L13] up = 0 VAL [i=10, up=0] Loop: [L15] COND FALSE !(i == 0) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND TRUE i == 0 [L16] up = 1 [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND TRUE i == 10 [L13] up = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-11-12 20:55:20,398 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (80)] Ended with exit code 0 [2024-11-12 20:55:20,594 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Ended with exit code 0 [2024-11-12 20:55:20,794 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Ended with exit code 0 [2024-11-12 20:55:20,995 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Ended with exit code 0 [2024-11-12 20:55:21,195 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Forceful destruction successful, exit code 0 [2024-11-12 20:55:21,395 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Forceful destruction successful, exit code 0 [2024-11-12 20:55:21,597 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Ended with exit code 0 [2024-11-12 20:55:21,797 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2024-11-12 20:55:21,996 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2024-11-12 20:55:22,197 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2024-11-12 20:55:22,397 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-12 20:55:22,599 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)