./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-crafted-lit/Urban-WST2013-Fig2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 3061b6dc 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-crafted-lit/Urban-WST2013-Fig2.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 9c55a9a6f50b70c8ad02d8f9cdba1133727e3a9a73c5b8d3940178ed4735e2c1 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 14:14:37,412 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 14:14:37,494 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-11-19 14:14:37,499 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 14:14:37,501 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 14:14:37,535 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 14:14:37,536 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 14:14:37,536 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 14:14:37,536 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 14:14:37,537 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 14:14:37,537 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 14:14:37,538 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 14:14:37,538 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 14:14:37,538 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-19 14:14:37,539 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-19 14:14:37,539 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-19 14:14:37,539 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-19 14:14:37,540 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-19 14:14:37,540 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-19 14:14:37,540 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 14:14:37,541 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-19 14:14:37,544 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 14:14:37,544 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 14:14:37,545 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-19 14:14:37,545 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-19 14:14:37,545 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-19 14:14:37,545 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 14:14:37,545 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 14:14:37,545 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 14:14:37,546 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-19 14:14:37,546 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 14:14:37,546 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 14:14:37,546 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 14:14:37,547 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 14:14:37,547 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 14:14:37,547 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-19 14:14:37,547 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9c55a9a6f50b70c8ad02d8f9cdba1133727e3a9a73c5b8d3940178ed4735e2c1 [2024-11-19 14:14:37,811 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 14:14:37,834 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 14:14:37,837 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 14:14:37,838 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 14:14:37,839 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 14:14:37,841 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/Urban-WST2013-Fig2.c [2024-11-19 14:14:39,326 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 14:14:39,492 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 14:14:39,492 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/Urban-WST2013-Fig2.c [2024-11-19 14:14:39,498 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d85d2e7bd/fd4d13e589d0495d978b61c948415534/FLAG31f465bfb [2024-11-19 14:14:39,510 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d85d2e7bd/fd4d13e589d0495d978b61c948415534 [2024-11-19 14:14:39,513 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 14:14:39,514 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 14:14:39,515 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 14:14:39,515 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 14:14:39,519 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 14:14:39,520 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:14:39" (1/1) ... [2024-11-19 14:14:39,521 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c83105f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:14:39, skipping insertion in model container [2024-11-19 14:14:39,521 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:14:39" (1/1) ... [2024-11-19 14:14:39,538 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 14:14:39,706 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 14:14:39,711 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 14:14:39,721 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 14:14:39,735 INFO L204 MainTranslator]: Completed translation [2024-11-19 14:14:39,735 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:14:39 WrapperNode [2024-11-19 14:14:39,735 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 14:14:39,737 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 14:14:39,737 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 14:14:39,737 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 14:14:39,744 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:14:39" (1/1) ... [2024-11-19 14:14:39,766 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:14:39" (1/1) ... [2024-11-19 14:14:39,782 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 23 [2024-11-19 14:14:39,783 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 14:14:39,783 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 14:14:39,784 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 14:14:39,784 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 14:14:39,799 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:14:39" (1/1) ... [2024-11-19 14:14:39,811 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:14:39" (1/1) ... [2024-11-19 14:14:39,812 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:14:39" (1/1) ... [2024-11-19 14:14:39,817 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-19 14:14:39,818 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:14:39" (1/1) ... [2024-11-19 14:14:39,818 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:14:39" (1/1) ... [2024-11-19 14:14:39,820 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:14:39" (1/1) ... [2024-11-19 14:14:39,827 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:14:39" (1/1) ... [2024-11-19 14:14:39,828 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:14:39" (1/1) ... [2024-11-19 14:14:39,829 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:14:39" (1/1) ... [2024-11-19 14:14:39,830 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 14:14:39,831 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 14:14:39,831 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 14:14:39,831 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 14:14:39,832 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:14:39" (1/1) ... [2024-11-19 14:14:39,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:14:39,846 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:14:39,859 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) [2024-11-19 14:14:39,862 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 [2024-11-19 14:14:39,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 14:14:39,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 14:14:39,991 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 14:14:39,993 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 14:14:40,048 INFO L? ?]: Removed 4 outVars from TransFormulas that were not future-live. [2024-11-19 14:14:40,049 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 14:14:40,067 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 14:14:40,067 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-19 14:14:40,068 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:14:40 BoogieIcfgContainer [2024-11-19 14:14:40,068 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 14:14:40,069 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-19 14:14:40,069 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-19 14:14:40,073 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-19 14:14:40,074 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-19 14:14:40,074 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 02:14:39" (1/3) ... [2024-11-19 14:14:40,075 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@92611db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 02:14:40, skipping insertion in model container [2024-11-19 14:14:40,075 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-19 14:14:40,075 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:14:39" (2/3) ... [2024-11-19 14:14:40,076 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@92611db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 02:14:40, skipping insertion in model container [2024-11-19 14:14:40,076 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-19 14:14:40,076 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:14:40" (3/3) ... [2024-11-19 14:14:40,078 INFO L332 chiAutomizerObserver]: Analyzing ICFG Urban-WST2013-Fig2.c [2024-11-19 14:14:40,141 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-19 14:14:40,141 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-19 14:14:40,141 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-19 14:14:40,142 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-19 14:14:40,142 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-19 14:14:40,142 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-19 14:14:40,143 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-19 14:14:40,143 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-19 14:14:40,147 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 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) [2024-11-19 14:14:40,166 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-19 14:14:40,166 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-19 14:14:40,167 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-19 14:14:40,172 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-19 14:14:40,172 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-19 14:14:40,173 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-19 14:14:40,174 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 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) [2024-11-19 14:14:40,175 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-19 14:14:40,175 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-19 14:14:40,175 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-19 14:14:40,175 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-19 14:14:40,176 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-19 14:14:40,182 INFO L745 eck$LassoCheckResult]: Stem: 6#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x1~0#1, main_~x2~0#1;havoc main_~x1~0#1;havoc main_~x2~0#1;havoc main_#t~nondet0#1;main_~x1~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~x2~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 2#L19-2true [2024-11-19 14:14:40,183 INFO L747 eck$LassoCheckResult]: Loop: 2#L19-2true assume !!(main_~x1~0#1 <= 10);main_~x2~0#1 := 10; 7#L21-2true assume !(main_~x2~0#1 > 1); 4#L21-3true main_~x1~0#1 := 1 + main_~x1~0#1; 2#L19-2true [2024-11-19 14:14:40,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:14:40,189 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-11-19 14:14:40,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:14:40,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044299036] [2024-11-19 14:14:40,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:14:40,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:14:40,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:14:40,288 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 14:14:40,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:14:40,311 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 14:14:40,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:14:40,316 INFO L85 PathProgramCache]: Analyzing trace with hash 40944, now seen corresponding path program 1 times [2024-11-19 14:14:40,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:14:40,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225269440] [2024-11-19 14:14:40,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:14:40,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:14:40,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:14:40,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:14:40,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:14:40,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225269440] [2024-11-19 14:14:40,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225269440] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:14:40,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:14:40,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 14:14:40,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759155899] [2024-11-19 14:14:40,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:14:40,422 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-19 14:14:40,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:14:40,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 14:14:40,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 14:14:40,466 INFO L87 Difference]: Start difference. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 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) Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:14:40,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 14:14:40,479 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2024-11-19 14:14:40,480 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 11 transitions. [2024-11-19 14:14:40,481 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-11-19 14:14:40,484 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 6 states and 7 transitions. [2024-11-19 14:14:40,486 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2024-11-19 14:14:40,487 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2024-11-19 14:14:40,487 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 7 transitions. [2024-11-19 14:14:40,488 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-19 14:14:40,488 INFO L218 hiAutomatonCegarLoop]: Abstraction has 6 states and 7 transitions. [2024-11-19 14:14:40,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states and 7 transitions. [2024-11-19 14:14:40,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2024-11-19 14:14:40,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:14:40,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 7 transitions. [2024-11-19 14:14:40,508 INFO L240 hiAutomatonCegarLoop]: Abstraction has 6 states and 7 transitions. [2024-11-19 14:14:40,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 14:14:40,512 INFO L425 stractBuchiCegarLoop]: Abstraction has 6 states and 7 transitions. [2024-11-19 14:14:40,512 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-19 14:14:40,513 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 7 transitions. [2024-11-19 14:14:40,513 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-11-19 14:14:40,513 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-19 14:14:40,513 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-19 14:14:40,513 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-19 14:14:40,513 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-19 14:14:40,514 INFO L745 eck$LassoCheckResult]: Stem: 31#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 32#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x1~0#1, main_~x2~0#1;havoc main_~x1~0#1;havoc main_~x2~0#1;havoc main_#t~nondet0#1;main_~x1~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~x2~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 28#L19-2 [2024-11-19 14:14:40,514 INFO L747 eck$LassoCheckResult]: Loop: 28#L19-2 assume !!(main_~x1~0#1 <= 10);main_~x2~0#1 := 10; 29#L21-2 assume !!(main_~x2~0#1 > 1);main_~x2~0#1 := main_~x2~0#1 - 1; 33#L21-2 assume !(main_~x2~0#1 > 1); 30#L21-3 main_~x1~0#1 := 1 + main_~x1~0#1; 28#L19-2 [2024-11-19 14:14:40,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:14:40,514 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2024-11-19 14:14:40,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:14:40,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702217691] [2024-11-19 14:14:40,515 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 14:14:40,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:14:40,521 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 14:14:40,521 INFO L228 tOrderPrioritization]: Conjunction of SSA is sat [2024-11-19 14:14:40,521 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 14:14:40,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:14:40,527 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 14:14:40,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:14:40,528 INFO L85 PathProgramCache]: Analyzing trace with hash 1271024, now seen corresponding path program 1 times [2024-11-19 14:14:40,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:14:40,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791136274] [2024-11-19 14:14:40,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:14:40,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:14:40,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:14:40,576 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:14:40,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:14:40,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791136274] [2024-11-19 14:14:40,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791136274] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:14:40,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1047444424] [2024-11-19 14:14:40,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:14:40,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:14:40,579 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:14:40,581 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 14:14:40,582 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 14:14:40,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:14:40,612 INFO L255 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 14:14:40,613 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:14:40,647 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:14:40,647 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 14:14:40,671 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:14:40,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1047444424] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 14:14:40,671 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 14:14:40,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2024-11-19 14:14:40,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063327791] [2024-11-19 14:14:40,672 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 14:14:40,672 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-19 14:14:40,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:14:40,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 14:14:40,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-19 14:14:40,673 INFO L87 Difference]: Start difference. First operand 6 states and 7 transitions. cyclomatic complexity: 2 Second operand has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:14:40,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 14:14:40,690 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2024-11-19 14:14:40,690 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 10 transitions. [2024-11-19 14:14:40,690 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2024-11-19 14:14:40,691 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 9 states and 10 transitions. [2024-11-19 14:14:40,691 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2024-11-19 14:14:40,691 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2024-11-19 14:14:40,691 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 10 transitions. [2024-11-19 14:14:40,691 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-19 14:14:40,692 INFO L218 hiAutomatonCegarLoop]: Abstraction has 9 states and 10 transitions. [2024-11-19 14:14:40,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 10 transitions. [2024-11-19 14:14:40,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2024-11-19 14:14:40,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 8 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) [2024-11-19 14:14:40,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2024-11-19 14:14:40,693 INFO L240 hiAutomatonCegarLoop]: Abstraction has 9 states and 10 transitions. [2024-11-19 14:14:40,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 14:14:40,694 INFO L425 stractBuchiCegarLoop]: Abstraction has 9 states and 10 transitions. [2024-11-19 14:14:40,695 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-19 14:14:40,695 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 10 transitions. [2024-11-19 14:14:40,695 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2024-11-19 14:14:40,695 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-19 14:14:40,696 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-19 14:14:40,696 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-19 14:14:40,696 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [4, 1, 1, 1] [2024-11-19 14:14:40,696 INFO L745 eck$LassoCheckResult]: Stem: 73#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 74#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x1~0#1, main_~x2~0#1;havoc main_~x1~0#1;havoc main_~x2~0#1;havoc main_#t~nondet0#1;main_~x1~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~x2~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 70#L19-2 [2024-11-19 14:14:40,696 INFO L747 eck$LassoCheckResult]: Loop: 70#L19-2 assume !!(main_~x1~0#1 <= 10);main_~x2~0#1 := 10; 71#L21-2 assume !!(main_~x2~0#1 > 1);main_~x2~0#1 := main_~x2~0#1 - 1; 75#L21-2 assume !!(main_~x2~0#1 > 1);main_~x2~0#1 := main_~x2~0#1 - 1; 78#L21-2 assume !!(main_~x2~0#1 > 1);main_~x2~0#1 := main_~x2~0#1 - 1; 77#L21-2 assume !!(main_~x2~0#1 > 1);main_~x2~0#1 := main_~x2~0#1 - 1; 76#L21-2 assume !(main_~x2~0#1 > 1); 72#L21-3 main_~x1~0#1 := 1 + main_~x1~0#1; 70#L19-2 [2024-11-19 14:14:40,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:14:40,697 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 3 times [2024-11-19 14:14:40,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:14:40,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878948674] [2024-11-19 14:14:40,698 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 14:14:40,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:14:40,701 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-19 14:14:40,701 INFO L228 tOrderPrioritization]: Conjunction of SSA is sat [2024-11-19 14:14:40,701 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 14:14:40,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:14:40,703 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 14:14:40,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:14:40,704 INFO L85 PathProgramCache]: Analyzing trace with hash -787882000, now seen corresponding path program 2 times [2024-11-19 14:14:40,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:14:40,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776786842] [2024-11-19 14:14:40,705 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 14:14:40,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:14:40,722 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 14:14:40,722 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 14:14:40,853 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:14:40,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:14:40,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776786842] [2024-11-19 14:14:40,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776786842] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:14:40,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [647932723] [2024-11-19 14:14:40,854 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 14:14:40,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:14:40,854 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:14:40,857 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 14:14:40,859 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 14:14:40,891 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 14:14:40,891 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 14:14:40,892 INFO L255 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-19 14:14:40,893 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:14:40,914 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:14:40,915 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 14:14:40,981 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:14:40,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [647932723] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 14:14:40,981 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 14:14:40,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 10 [2024-11-19 14:14:40,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489640731] [2024-11-19 14:14:40,982 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 14:14:40,982 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-19 14:14:40,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:14:40,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-19 14:14:40,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2024-11-19 14:14:40,984 INFO L87 Difference]: Start difference. First operand 9 states and 10 transitions. cyclomatic complexity: 2 Second operand has 11 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:14:41,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 14:14:41,002 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2024-11-19 14:14:41,002 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 15 transitions. [2024-11-19 14:14:41,003 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2024-11-19 14:14:41,004 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 14 states and 15 transitions. [2024-11-19 14:14:41,005 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2024-11-19 14:14:41,005 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2024-11-19 14:14:41,005 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 15 transitions. [2024-11-19 14:14:41,006 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-19 14:14:41,006 INFO L218 hiAutomatonCegarLoop]: Abstraction has 14 states and 15 transitions. [2024-11-19 14:14:41,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 15 transitions. [2024-11-19 14:14:41,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2024-11-19 14:14:41,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 13 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:14:41,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2024-11-19 14:14:41,009 INFO L240 hiAutomatonCegarLoop]: Abstraction has 14 states and 15 transitions. [2024-11-19 14:14:41,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-19 14:14:41,010 INFO L425 stractBuchiCegarLoop]: Abstraction has 14 states and 15 transitions. [2024-11-19 14:14:41,011 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-19 14:14:41,012 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 15 transitions. [2024-11-19 14:14:41,012 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2024-11-19 14:14:41,013 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-19 14:14:41,013 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-19 14:14:41,014 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-19 14:14:41,014 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [9, 1, 1, 1] [2024-11-19 14:14:41,014 INFO L745 eck$LassoCheckResult]: Stem: 146#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 147#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x1~0#1, main_~x2~0#1;havoc main_~x1~0#1;havoc main_~x2~0#1;havoc main_#t~nondet0#1;main_~x1~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~x2~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 143#L19-2 [2024-11-19 14:14:41,014 INFO L747 eck$LassoCheckResult]: Loop: 143#L19-2 assume !!(main_~x1~0#1 <= 10);main_~x2~0#1 := 10; 144#L21-2 assume !!(main_~x2~0#1 > 1);main_~x2~0#1 := main_~x2~0#1 - 1; 148#L21-2 assume !!(main_~x2~0#1 > 1);main_~x2~0#1 := main_~x2~0#1 - 1; 156#L21-2 assume !!(main_~x2~0#1 > 1);main_~x2~0#1 := main_~x2~0#1 - 1; 155#L21-2 assume !!(main_~x2~0#1 > 1);main_~x2~0#1 := main_~x2~0#1 - 1; 154#L21-2 assume !!(main_~x2~0#1 > 1);main_~x2~0#1 := main_~x2~0#1 - 1; 153#L21-2 assume !!(main_~x2~0#1 > 1);main_~x2~0#1 := main_~x2~0#1 - 1; 152#L21-2 assume !!(main_~x2~0#1 > 1);main_~x2~0#1 := main_~x2~0#1 - 1; 151#L21-2 assume !!(main_~x2~0#1 > 1);main_~x2~0#1 := main_~x2~0#1 - 1; 150#L21-2 assume !!(main_~x2~0#1 > 1);main_~x2~0#1 := main_~x2~0#1 - 1; 149#L21-2 assume !(main_~x2~0#1 > 1); 145#L21-3 main_~x1~0#1 := 1 + main_~x1~0#1; 143#L19-2 [2024-11-19 14:14:41,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:14:41,016 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 4 times [2024-11-19 14:14:41,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:14:41,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784047583] [2024-11-19 14:14:41,017 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-19 14:14:41,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:14:41,024 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-19 14:14:41,024 INFO L228 tOrderPrioritization]: Conjunction of SSA is sat [2024-11-19 14:14:41,025 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 14:14:41,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:14:41,028 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 14:14:41,029 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:14:41,030 INFO L85 PathProgramCache]: Analyzing trace with hash -219093776, now seen corresponding path program 3 times [2024-11-19 14:14:41,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:14:41,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901052290] [2024-11-19 14:14:41,031 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 14:14:41,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:14:41,047 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-11-19 14:14:41,047 INFO L228 tOrderPrioritization]: Conjunction of SSA is sat [2024-11-19 14:14:41,047 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 14:14:41,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:14:41,061 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 14:14:41,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:14:41,062 INFO L85 PathProgramCache]: Analyzing trace with hash 995055026, now seen corresponding path program 1 times [2024-11-19 14:14:41,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:14:41,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689887993] [2024-11-19 14:14:41,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:14:41,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:14:41,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:14:41,085 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 14:14:41,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:14:41,106 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 14:14:41,260 INFO L204 LassoAnalysis]: Preferences: [2024-11-19 14:14:41,261 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-19 14:14:41,261 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-19 14:14:41,261 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-19 14:14:41,261 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-19 14:14:41,261 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:14:41,261 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-19 14:14:41,262 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-19 14:14:41,262 INFO L132 ssoRankerPreferences]: Filename of dumped script: Urban-WST2013-Fig2.c_Iteration4_Loop [2024-11-19 14:14:41,276 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-19 14:14:41,276 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-19 14:14:41,296 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:14:41,306 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:14:41,312 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:14:41,315 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:14:41,372 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-19 14:14:41,372 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-19 14:14:41,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:14:41,374 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:14:41,380 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) [2024-11-19 14:14:41,382 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 [2024-11-19 14:14:41,384 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-19 14:14:41,384 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 14:14:41,412 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-19 14:14:41,412 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: [] [2024-11-19 14:14:41,424 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 [2024-11-19 14:14:41,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:14:41,425 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:14:41,426 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) [2024-11-19 14:14:41,428 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 [2024-11-19 14:14:41,429 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-19 14:14:41,430 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 14:14:41,449 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-19 14:14:41,449 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: [] [2024-11-19 14:14:41,464 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 [2024-11-19 14:14:41,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:14:41,465 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:14:41,466 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) [2024-11-19 14:14:41,468 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 [2024-11-19 14:14:41,470 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-19 14:14:41,470 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 14:14:41,485 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-19 14:14:41,486 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x2~0#1=0} Honda state: {ULTIMATE.start_main_~x2~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-19 14:14:41,501 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 [2024-11-19 14:14:41,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:14:41,501 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:14:41,503 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) [2024-11-19 14:14:41,504 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 [2024-11-19 14:14:41,505 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-19 14:14:41,506 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 14:14:41,535 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 [2024-11-19 14:14:41,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:14:41,536 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:14:41,538 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) [2024-11-19 14:14:41,539 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 [2024-11-19 14:14:41,540 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-19 14:14:41,540 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 14:14:41,568 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-19 14:14:41,573 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 [2024-11-19 14:14:41,573 INFO L204 LassoAnalysis]: Preferences: [2024-11-19 14:14:41,573 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-19 14:14:41,573 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-19 14:14:41,573 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-19 14:14:41,574 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-19 14:14:41,574 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:14:41,574 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-19 14:14:41,574 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-19 14:14:41,574 INFO L132 ssoRankerPreferences]: Filename of dumped script: Urban-WST2013-Fig2.c_Iteration4_Loop [2024-11-19 14:14:41,574 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-19 14:14:41,574 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-19 14:14:41,575 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:14:41,579 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:14:41,583 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:14:41,586 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:14:41,628 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-19 14:14:41,633 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-19 14:14:41,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:14:41,634 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:14:41,636 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) [2024-11-19 14:14:41,637 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 [2024-11-19 14:14:41,638 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 [2024-11-19 14:14:41,653 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-19 14:14:41,654 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-19 14:14:41,654 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-19 14:14:41,654 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-19 14:14:41,660 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-19 14:14:41,660 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-19 14:14:41,670 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-19 14:14:41,686 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2024-11-19 14:14:41,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:14:41,687 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:14:41,688 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) [2024-11-19 14:14:41,689 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 [2024-11-19 14:14:41,690 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 [2024-11-19 14:14:41,700 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-19 14:14:41,700 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-19 14:14:41,700 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-19 14:14:41,700 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-19 14:14:41,702 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-19 14:14:41,702 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-19 14:14:41,708 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-19 14:14:41,723 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2024-11-19 14:14:41,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:14:41,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:14:41,725 INFO L229 MonitoredProcess]: Starting monitored process 11 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) [2024-11-19 14:14:41,726 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-11-19 14:14:41,727 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 [2024-11-19 14:14:41,740 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-19 14:14:41,740 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-19 14:14:41,741 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-19 14:14:41,741 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-19 14:14:41,741 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-19 14:14:41,741 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-19 14:14:41,742 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-19 14:14:41,745 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-19 14:14:41,760 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2024-11-19 14:14:41,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:14:41,761 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:14:41,763 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) [2024-11-19 14:14:41,764 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 [2024-11-19 14:14:41,765 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 [2024-11-19 14:14:41,778 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-19 14:14:41,778 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-19 14:14:41,778 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-19 14:14:41,778 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-19 14:14:41,778 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-19 14:14:41,779 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-19 14:14:41,779 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-19 14:14:41,781 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-19 14:14:41,785 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-19 14:14:41,785 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-19 14:14:41,787 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:14:41,787 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:14:41,789 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) [2024-11-19 14:14:41,790 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 [2024-11-19 14:14:41,791 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-19 14:14:41,791 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-19 14:14:41,791 INFO L474 LassoAnalysis]: Proved termination. [2024-11-19 14:14:41,792 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x1~0#1) = -2*ULTIMATE.start_main_~x1~0#1 + 21 Supporting invariants [] [2024-11-19 14:14:41,825 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2024-11-19 14:14:41,828 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-19 14:14:41,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:14:41,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:14:41,859 WARN L253 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-19 14:14:41,859 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:14:41,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:14:41,873 INFO L255 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 14:14:41,874 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:14:41,946 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-19 14:14:41,950 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 [2024-11-19 14:14:41,952 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states and 15 transitions. cyclomatic complexity: 2 Second operand has 3 states, 3 states have (on average 2.0) 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) [2024-11-19 14:14:41,984 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states and 15 transitions. cyclomatic complexity: 2. Second operand has 3 states, 3 states have (on average 2.0) 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) Result 26 states and 29 transitions. Complement of second has 4 states. [2024-11-19 14:14:41,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-19 14:14:41,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) 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) [2024-11-19 14:14:41,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2024-11-19 14:14:41,988 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 2 letters. Loop has 12 letters. [2024-11-19 14:14:41,988 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 14:14:41,988 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 14 letters. Loop has 12 letters. [2024-11-19 14:14:41,989 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 14:14:41,989 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 2 letters. Loop has 24 letters. [2024-11-19 14:14:41,989 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 14:14:41,989 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 29 transitions. [2024-11-19 14:14:41,990 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2024-11-19 14:14:41,991 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 25 states and 28 transitions. [2024-11-19 14:14:41,991 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2024-11-19 14:14:41,991 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2024-11-19 14:14:41,991 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 28 transitions. [2024-11-19 14:14:41,991 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-19 14:14:41,991 INFO L218 hiAutomatonCegarLoop]: Abstraction has 25 states and 28 transitions. [2024-11-19 14:14:41,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 28 transitions. [2024-11-19 14:14:41,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 16. [2024-11-19 14:14:41,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.1875) internal successors, (19), 15 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:14:41,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2024-11-19 14:14:41,993 INFO L240 hiAutomatonCegarLoop]: Abstraction has 16 states and 19 transitions. [2024-11-19 14:14:41,993 INFO L425 stractBuchiCegarLoop]: Abstraction has 16 states and 19 transitions. [2024-11-19 14:14:41,993 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-11-19 14:14:41,993 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 19 transitions. [2024-11-19 14:14:41,994 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2024-11-19 14:14:41,994 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-19 14:14:41,994 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-19 14:14:41,994 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-19 14:14:41,994 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2024-11-19 14:14:41,994 INFO L745 eck$LassoCheckResult]: Stem: 249#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 250#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x1~0#1, main_~x2~0#1;havoc main_~x1~0#1;havoc main_~x2~0#1;havoc main_#t~nondet0#1;main_~x1~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~x2~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 244#L19-2 assume !!(main_~x1~0#1 <= 10);main_~x2~0#1 := 10; 246#L21-2 [2024-11-19 14:14:41,994 INFO L747 eck$LassoCheckResult]: Loop: 246#L21-2 assume !!(main_~x2~0#1 > 1);main_~x2~0#1 := main_~x2~0#1 - 1; 246#L21-2 [2024-11-19 14:14:41,995 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:14:41,995 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2024-11-19 14:14:41,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:14:41,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403956336] [2024-11-19 14:14:41,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:14:41,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:14:42,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:14:42,004 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 14:14:42,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:14:42,007 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 14:14:42,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:14:42,008 INFO L85 PathProgramCache]: Analyzing trace with hash 51, now seen corresponding path program 1 times [2024-11-19 14:14:42,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:14:42,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788821054] [2024-11-19 14:14:42,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:14:42,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:14:42,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:14:42,015 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 14:14:42,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:14:42,017 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 14:14:42,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:14:42,018 INFO L85 PathProgramCache]: Analyzing trace with hash 925804, now seen corresponding path program 1 times [2024-11-19 14:14:42,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:14:42,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197878215] [2024-11-19 14:14:42,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:14:42,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:14:42,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:14:42,026 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 14:14:42,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:14:42,030 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 14:14:42,049 INFO L204 LassoAnalysis]: Preferences: [2024-11-19 14:14:42,049 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-19 14:14:42,049 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-19 14:14:42,049 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-19 14:14:42,049 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-19 14:14:42,049 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:14:42,049 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-19 14:14:42,049 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-19 14:14:42,049 INFO L132 ssoRankerPreferences]: Filename of dumped script: Urban-WST2013-Fig2.c_Iteration5_Loop [2024-11-19 14:14:42,049 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-19 14:14:42,050 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-19 14:14:42,050 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:14:42,054 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:14:42,057 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:14:42,095 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-19 14:14:42,095 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-19 14:14:42,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:14:42,095 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:14:42,098 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) [2024-11-19 14:14:42,100 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 [2024-11-19 14:14:42,101 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-19 14:14:42,101 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 14:14:42,119 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-19 14:14:42,120 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: [] [2024-11-19 14:14:42,131 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2024-11-19 14:14:42,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:14:42,132 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:14:42,133 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) [2024-11-19 14:14:42,133 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 [2024-11-19 14:14:42,134 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-19 14:14:42,134 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 14:14:42,154 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-19 14:14:42,154 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: [] [2024-11-19 14:14:42,165 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 [2024-11-19 14:14:42,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:14:42,165 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:14:42,166 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) [2024-11-19 14:14:42,167 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 [2024-11-19 14:14:42,168 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-19 14:14:42,168 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 14:14:42,190 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 [2024-11-19 14:14:42,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:14:42,190 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:14:42,191 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) [2024-11-19 14:14:42,192 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 [2024-11-19 14:14:42,193 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-19 14:14:42,193 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 14:14:42,223 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-19 14:14:42,227 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 [2024-11-19 14:14:42,228 INFO L204 LassoAnalysis]: Preferences: [2024-11-19 14:14:42,228 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-19 14:14:42,228 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-19 14:14:42,228 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-19 14:14:42,228 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-19 14:14:42,228 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:14:42,228 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-19 14:14:42,228 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-19 14:14:42,228 INFO L132 ssoRankerPreferences]: Filename of dumped script: Urban-WST2013-Fig2.c_Iteration5_Loop [2024-11-19 14:14:42,228 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-19 14:14:42,229 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-19 14:14:42,230 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:14:42,233 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:14:42,235 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:14:42,273 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-19 14:14:42,274 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-19 14:14:42,274 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:14:42,274 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:14:42,276 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) [2024-11-19 14:14:42,278 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 [2024-11-19 14:14:42,279 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 [2024-11-19 14:14:42,291 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-19 14:14:42,292 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-19 14:14:42,292 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-19 14:14:42,292 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-19 14:14:42,294 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-19 14:14:42,294 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-19 14:14:42,298 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-19 14:14:42,312 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 [2024-11-19 14:14:42,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:14:42,313 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:14:42,314 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) [2024-11-19 14:14:42,317 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 [2024-11-19 14:14:42,318 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 [2024-11-19 14:14:42,331 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-19 14:14:42,331 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-19 14:14:42,331 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-19 14:14:42,331 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-19 14:14:42,334 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-19 14:14:42,334 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-19 14:14:42,339 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-19 14:14:42,353 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 [2024-11-19 14:14:42,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:14:42,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:14:42,355 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) [2024-11-19 14:14:42,358 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 [2024-11-19 14:14:42,359 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 [2024-11-19 14:14:42,371 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-19 14:14:42,371 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-19 14:14:42,372 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-19 14:14:42,372 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-19 14:14:42,372 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-19 14:14:42,373 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-19 14:14:42,373 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-19 14:14:42,375 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-19 14:14:42,379 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-19 14:14:42,379 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-19 14:14:42,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:14:42,380 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:14:42,382 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) [2024-11-19 14:14:42,385 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 [2024-11-19 14:14:42,386 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-19 14:14:42,386 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-19 14:14:42,386 INFO L474 LassoAnalysis]: Proved termination. [2024-11-19 14:14:42,386 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x2~0#1) = 1*ULTIMATE.start_main_~x2~0#1 Supporting invariants [] [2024-11-19 14:14:42,401 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 [2024-11-19 14:14:42,402 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-19 14:14:42,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:14:42,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:14:42,422 INFO L255 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-19 14:14:42,422 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:14:42,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:14:42,429 WARN L253 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 14:14:42,429 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:14:42,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:14:42,430 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2024-11-19 14:14:42,430 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 19 transitions. cyclomatic complexity: 5 Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2024-11-19 14:14:42,437 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 19 transitions. cyclomatic complexity: 5. Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 32 transitions. Complement of second has 3 states. [2024-11-19 14:14:42,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2024-11-19 14:14:42,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2024-11-19 14:14:42,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 4 transitions. [2024-11-19 14:14:42,440 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 4 transitions. Stem has 3 letters. Loop has 1 letters. [2024-11-19 14:14:42,440 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 14:14:42,440 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 4 transitions. Stem has 4 letters. Loop has 1 letters. [2024-11-19 14:14:42,440 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 14:14:42,440 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 4 transitions. Stem has 3 letters. Loop has 2 letters. [2024-11-19 14:14:42,441 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 14:14:42,441 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 32 transitions. [2024-11-19 14:14:42,442 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2024-11-19 14:14:42,442 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 26 states and 29 transitions. [2024-11-19 14:14:42,444 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2024-11-19 14:14:42,445 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2024-11-19 14:14:42,445 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 29 transitions. [2024-11-19 14:14:42,445 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-19 14:14:42,445 INFO L218 hiAutomatonCegarLoop]: Abstraction has 26 states and 29 transitions. [2024-11-19 14:14:42,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 29 transitions. [2024-11-19 14:14:42,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 16. [2024-11-19 14:14:42,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.125) internal successors, (18), 15 states have internal predecessors, (18), 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) [2024-11-19 14:14:42,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2024-11-19 14:14:42,447 INFO L240 hiAutomatonCegarLoop]: Abstraction has 16 states and 18 transitions. [2024-11-19 14:14:42,447 INFO L425 stractBuchiCegarLoop]: Abstraction has 16 states and 18 transitions. [2024-11-19 14:14:42,447 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-11-19 14:14:42,447 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 18 transitions. [2024-11-19 14:14:42,448 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2024-11-19 14:14:42,448 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-19 14:14:42,448 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-19 14:14:42,449 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [9, 2, 1, 1, 1, 1] [2024-11-19 14:14:42,449 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2024-11-19 14:14:42,449 INFO L745 eck$LassoCheckResult]: Stem: 321#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 322#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x1~0#1, main_~x2~0#1;havoc main_~x1~0#1;havoc main_~x2~0#1;havoc main_#t~nondet0#1;main_~x1~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~x2~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 316#L19-2 assume !!(main_~x1~0#1 <= 10);main_~x2~0#1 := 10; 317#L21-2 assume !!(main_~x2~0#1 > 1);main_~x2~0#1 := main_~x2~0#1 - 1; 323#L21-2 assume !!(main_~x2~0#1 > 1);main_~x2~0#1 := main_~x2~0#1 - 1; 331#L21-2 assume !!(main_~x2~0#1 > 1);main_~x2~0#1 := main_~x2~0#1 - 1; 330#L21-2 assume !!(main_~x2~0#1 > 1);main_~x2~0#1 := main_~x2~0#1 - 1; 329#L21-2 assume !!(main_~x2~0#1 > 1);main_~x2~0#1 := main_~x2~0#1 - 1; 328#L21-2 assume !!(main_~x2~0#1 > 1);main_~x2~0#1 := main_~x2~0#1 - 1; 327#L21-2 assume !!(main_~x2~0#1 > 1);main_~x2~0#1 := main_~x2~0#1 - 1; 326#L21-2 assume !!(main_~x2~0#1 > 1);main_~x2~0#1 := main_~x2~0#1 - 1; 325#L21-2 assume !!(main_~x2~0#1 > 1);main_~x2~0#1 := main_~x2~0#1 - 1; 324#L21-2 assume !(main_~x2~0#1 > 1); 320#L21-3 main_~x1~0#1 := 1 + main_~x1~0#1; 318#L19-2 assume !!(main_~x1~0#1 <= 10);main_~x2~0#1 := 10; 319#L21-2 [2024-11-19 14:14:42,449 INFO L747 eck$LassoCheckResult]: Loop: 319#L21-2 assume !!(main_~x2~0#1 > 1);main_~x2~0#1 := main_~x2~0#1 - 1; 319#L21-2 [2024-11-19 14:14:42,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:14:42,450 INFO L85 PathProgramCache]: Analyzing trace with hash 781934745, now seen corresponding path program 2 times [2024-11-19 14:14:42,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:14:42,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935446872] [2024-11-19 14:14:42,450 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 14:14:42,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:14:42,458 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 14:14:42,459 INFO L228 tOrderPrioritization]: Conjunction of SSA is sat [2024-11-19 14:14:42,459 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 14:14:42,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:14:42,467 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 14:14:42,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:14:42,468 INFO L85 PathProgramCache]: Analyzing trace with hash 51, now seen corresponding path program 2 times [2024-11-19 14:14:42,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:14:42,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495289023] [2024-11-19 14:14:42,468 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 14:14:42,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:14:42,471 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 14:14:42,471 INFO L228 tOrderPrioritization]: Conjunction of SSA is sat [2024-11-19 14:14:42,472 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 14:14:42,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:14:42,473 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 14:14:42,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:14:42,474 INFO L85 PathProgramCache]: Analyzing trace with hash -1529826661, now seen corresponding path program 3 times [2024-11-19 14:14:42,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:14:42,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140929057] [2024-11-19 14:14:42,475 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 14:14:42,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:14:42,485 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-11-19 14:14:42,486 INFO L228 tOrderPrioritization]: Conjunction of SSA is sat [2024-11-19 14:14:42,486 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 14:14:42,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:14:42,493 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 14:14:42,506 INFO L204 LassoAnalysis]: Preferences: [2024-11-19 14:14:42,507 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-19 14:14:42,507 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-19 14:14:42,507 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-19 14:14:42,507 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-19 14:14:42,507 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:14:42,507 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-19 14:14:42,507 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-19 14:14:42,508 INFO L132 ssoRankerPreferences]: Filename of dumped script: Urban-WST2013-Fig2.c_Iteration6_Loop [2024-11-19 14:14:42,508 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-19 14:14:42,508 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-19 14:14:42,509 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:14:42,514 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:14:42,517 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:14:42,549 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-19 14:14:42,549 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-19 14:14:42,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:14:42,549 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:14:42,551 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) [2024-11-19 14:14:42,552 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 [2024-11-19 14:14:42,553 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-19 14:14:42,553 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 14:14:42,579 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 [2024-11-19 14:14:42,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:14:42,580 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:14:42,583 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) [2024-11-19 14:14:42,584 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 [2024-11-19 14:14:42,585 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-19 14:14:42,585 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 14:14:42,616 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-19 14:14:42,621 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2024-11-19 14:14:42,622 INFO L204 LassoAnalysis]: Preferences: [2024-11-19 14:14:42,622 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-19 14:14:42,622 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-19 14:14:42,622 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-19 14:14:42,622 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-19 14:14:42,622 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:14:42,622 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-19 14:14:42,622 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-19 14:14:42,622 INFO L132 ssoRankerPreferences]: Filename of dumped script: Urban-WST2013-Fig2.c_Iteration6_Loop [2024-11-19 14:14:42,622 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-19 14:14:42,622 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-19 14:14:42,623 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:14:42,631 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:14:42,635 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:14:42,669 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-19 14:14:42,669 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-19 14:14:42,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:14:42,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:14:42,670 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) [2024-11-19 14:14:42,671 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 [2024-11-19 14:14:42,672 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 [2024-11-19 14:14:42,682 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-19 14:14:42,682 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-19 14:14:42,682 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-19 14:14:42,682 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-19 14:14:42,682 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-19 14:14:42,684 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-19 14:14:42,684 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-19 14:14:42,686 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-19 14:14:42,689 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-19 14:14:42,689 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-19 14:14:42,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:14:42,689 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:14:42,691 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) [2024-11-19 14:14:42,693 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 [2024-11-19 14:14:42,693 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-19 14:14:42,693 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-19 14:14:42,694 INFO L474 LassoAnalysis]: Proved termination. [2024-11-19 14:14:42,694 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x2~0#1) = 1*ULTIMATE.start_main_~x2~0#1 Supporting invariants [] [2024-11-19 14:14:42,708 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2024-11-19 14:14:42,710 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-19 14:14:42,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:14:42,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:14:42,743 INFO L255 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-19 14:14:42,744 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:14:42,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:14:42,773 WARN L253 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 14:14:42,774 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:14:42,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:14:42,774 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2024-11-19 14:14:42,775 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 18 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:14:42,784 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 18 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 26 states and 29 transitions. Complement of second has 3 states. [2024-11-19 14:14:42,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2024-11-19 14:14:42,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:14:42,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 4 transitions. [2024-11-19 14:14:42,787 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 4 transitions. Stem has 15 letters. Loop has 1 letters. [2024-11-19 14:14:42,787 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 14:14:42,788 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-19 14:14:42,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:14:42,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:14:42,816 INFO L255 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-19 14:14:42,816 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:14:42,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:14:42,848 WARN L253 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 14:14:42,849 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:14:42,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:14:42,849 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2024-11-19 14:14:42,850 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 18 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:14:42,859 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 18 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 26 states and 29 transitions. Complement of second has 3 states. [2024-11-19 14:14:42,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2024-11-19 14:14:42,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:14:42,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 4 transitions. [2024-11-19 14:14:42,862 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 4 transitions. Stem has 15 letters. Loop has 1 letters. [2024-11-19 14:14:42,862 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 14:14:42,862 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-19 14:14:42,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:14:42,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:14:42,886 INFO L255 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-19 14:14:42,887 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:14:42,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:14:42,919 WARN L253 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 14:14:42,920 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:14:42,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:14:42,920 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 1 loop predicates [2024-11-19 14:14:42,921 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 18 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:14:42,929 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 18 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 17 states and 19 transitions. Complement of second has 2 states. [2024-11-19 14:14:42,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2024-11-19 14:14:42,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:14:42,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 8 transitions. [2024-11-19 14:14:42,933 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 8 transitions. Stem has 15 letters. Loop has 1 letters. [2024-11-19 14:14:42,934 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 14:14:42,935 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 8 transitions. Stem has 16 letters. Loop has 1 letters. [2024-11-19 14:14:42,936 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 14:14:42,936 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 8 transitions. Stem has 15 letters. Loop has 2 letters. [2024-11-19 14:14:42,936 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 14:14:42,936 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 19 transitions. [2024-11-19 14:14:42,937 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-19 14:14:42,938 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 0 states and 0 transitions. [2024-11-19 14:14:42,938 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-19 14:14:42,939 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-19 14:14:42,939 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-19 14:14:42,939 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-19 14:14:42,939 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-19 14:14:42,939 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-19 14:14:42,939 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-19 14:14:42,939 INFO L332 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2024-11-19 14:14:42,939 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-11-19 14:14:42,939 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-19 14:14:42,940 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-11-19 14:14:42,947 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 02:14:42 BoogieIcfgContainer [2024-11-19 14:14:42,947 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-19 14:14:42,947 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-19 14:14:42,947 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-19 14:14:42,948 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-19 14:14:42,948 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:14:40" (3/4) ... [2024-11-19 14:14:42,952 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-19 14:14:42,955 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-19 14:14:42,955 INFO L158 Benchmark]: Toolchain (without parser) took 3441.54ms. Allocated memory is still 167.8MB. Free memory was 100.3MB in the beginning and 49.0MB in the end (delta: 51.3MB). Peak memory consumption was 53.2MB. Max. memory is 16.1GB. [2024-11-19 14:14:42,956 INFO L158 Benchmark]: CDTParser took 0.70ms. Allocated memory is still 104.9MB. Free memory is still 71.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 14:14:42,956 INFO L158 Benchmark]: CACSL2BoogieTranslator took 220.91ms. Allocated memory is still 167.8MB. Free memory was 100.1MB in the beginning and 88.9MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-19 14:14:42,956 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.40ms. Allocated memory is still 167.8MB. Free memory was 88.9MB in the beginning and 141.2MB in the end (delta: -52.3MB). Peak memory consumption was 6.7MB. Max. memory is 16.1GB. [2024-11-19 14:14:42,956 INFO L158 Benchmark]: Boogie Preprocessor took 46.62ms. Allocated memory is still 167.8MB. Free memory was 141.2MB in the beginning and 139.9MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-19 14:14:42,957 INFO L158 Benchmark]: RCFGBuilder took 237.10ms. Allocated memory is still 167.8MB. Free memory was 139.9MB in the beginning and 130.9MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-19 14:14:42,957 INFO L158 Benchmark]: BuchiAutomizer took 2878.14ms. Allocated memory is still 167.8MB. Free memory was 130.9MB in the beginning and 50.0MB in the end (delta: 80.9MB). Peak memory consumption was 82.2MB. Max. memory is 16.1GB. [2024-11-19 14:14:42,957 INFO L158 Benchmark]: Witness Printer took 7.59ms. Allocated memory is still 167.8MB. Free memory was 50.0MB in the beginning and 49.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-19 14:14:42,959 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.70ms. Allocated memory is still 104.9MB. Free memory is still 71.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 220.91ms. Allocated memory is still 167.8MB. Free memory was 100.1MB in the beginning and 88.9MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.40ms. Allocated memory is still 167.8MB. Free memory was 88.9MB in the beginning and 141.2MB in the end (delta: -52.3MB). Peak memory consumption was 6.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.62ms. Allocated memory is still 167.8MB. Free memory was 141.2MB in the beginning and 139.9MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 237.10ms. Allocated memory is still 167.8MB. Free memory was 139.9MB in the beginning and 130.9MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 2878.14ms. Allocated memory is still 167.8MB. Free memory was 130.9MB in the beginning and 50.0MB in the end (delta: 80.9MB). Peak memory consumption was 82.2MB. Max. memory is 16.1GB. * Witness Printer took 7.59ms. Allocated memory is still 167.8MB. Free memory was 50.0MB in the beginning and 49.0MB in the end (delta: 1.1MB). 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 6 terminating modules (3 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function (((long) -2 * x1) + 21) and consists of 3 locations. One deterministic module has affine ranking function x2 and consists of 2 locations. One nondeterministic module has affine ranking function x2 and consists of 2 locations. 3 modules have a trivial ranking function, the largest among these consists of 11 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.8s and 7 iterations. TraceHistogramMax:9. Analysis of lassos took 2.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 4. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 19 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 45/45 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 20 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 15 mSDsluCounter, 51 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 44 IncrementalHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 38 mSDtfsCounter, 44 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI3 SFLT3 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital10 mio100 ax220 hnf100 lsp45 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 36ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-11-19 14:14:42,986 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2024-11-19 14:14:43,184 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 [2024-11-19 14:14:43,385 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2024-11-19 14:14:43,589 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-19 14:14:43,803 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-19 14:14:43,989 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE