./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/termination.prp --file ../../../trunk/examples/svcomp/termination-bwb/or-01.c --full-output --cacsl2boogietranslator.use.bitabs.translation true --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 514d202d Calling Ultimate with: /root/.sdkman/candidates/java/current/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 ../../../trunk/examples/svcomp/termination-bwb/or-01.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 7f247e4473503f47ee3194e296d6b905e51586799395e11124f119da43a61cc2 --cacsl2boogietranslator.use.bitabs.translation true --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-514d202-m [2024-02-09 14:17:50,053 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-02-09 14:17:50,139 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-02-09 14:17:50,143 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-02-09 14:17:50,144 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-02-09 14:17:50,165 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-02-09 14:17:50,166 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-02-09 14:17:50,166 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-02-09 14:17:50,167 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-02-09 14:17:50,170 INFO L153 SettingsManager]: * Use memory slicer=true [2024-02-09 14:17:50,170 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-02-09 14:17:50,170 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-02-09 14:17:50,171 INFO L153 SettingsManager]: * Use SBE=true [2024-02-09 14:17:50,172 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-02-09 14:17:50,172 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-02-09 14:17:50,173 INFO L153 SettingsManager]: * Use old map elimination=false [2024-02-09 14:17:50,173 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-02-09 14:17:50,173 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-02-09 14:17:50,173 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-02-09 14:17:50,173 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-02-09 14:17:50,174 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-02-09 14:17:50,174 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-02-09 14:17:50,174 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-02-09 14:17:50,174 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-02-09 14:17:50,175 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-02-09 14:17:50,175 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-02-09 14:17:50,175 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-02-09 14:17:50,175 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-02-09 14:17:50,175 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-02-09 14:17:50,176 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-02-09 14:17:50,176 INFO L153 SettingsManager]: * Use constant arrays=true [2024-02-09 14:17:50,177 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-02-09 14:17:50,177 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-02-09 14:17:50,177 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-02-09 14:17:50,177 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-02-09 14:17:50,178 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-02-09 14:17:50,178 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7f247e4473503f47ee3194e296d6b905e51586799395e11124f119da43a61cc2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2024-02-09 14:17:50,388 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-02-09 14:17:50,414 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-02-09 14:17:50,418 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-02-09 14:17:50,419 INFO L270 PluginConnector]: Initializing CDTParser... [2024-02-09 14:17:50,419 INFO L274 PluginConnector]: CDTParser initialized [2024-02-09 14:17:50,421 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/termination-bwb/or-01.c [2024-02-09 14:17:51,486 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-02-09 14:17:51,661 INFO L384 CDTParser]: Found 1 translation units. [2024-02-09 14:17:51,661 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/termination-bwb/or-01.c [2024-02-09 14:17:51,667 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2afacf4e/e4ceb56aa70847e99749e55cc2058c2f/FLAG66940475b [2024-02-09 14:17:51,679 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2afacf4e/e4ceb56aa70847e99749e55cc2058c2f [2024-02-09 14:17:51,681 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-02-09 14:17:51,682 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-02-09 14:17:51,684 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-02-09 14:17:51,684 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-02-09 14:17:51,688 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-02-09 14:17:51,689 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.02 02:17:51" (1/1) ... [2024-02-09 14:17:51,690 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2137c92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 02:17:51, skipping insertion in model container [2024-02-09 14:17:51,690 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.02 02:17:51" (1/1) ... [2024-02-09 14:17:51,709 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-02-09 14:17:51,811 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-09 14:17:51,815 INFO L202 MainTranslator]: Completed pre-run [2024-02-09 14:17:51,825 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-09 14:17:51,836 INFO L206 MainTranslator]: Completed translation [2024-02-09 14:17:51,836 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 02:17:51 WrapperNode [2024-02-09 14:17:51,837 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-02-09 14:17:51,838 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-02-09 14:17:51,839 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-02-09 14:17:51,839 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-02-09 14:17:51,845 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 02:17:51" (1/1) ... [2024-02-09 14:17:51,850 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 02:17:51" (1/1) ... [2024-02-09 14:17:51,866 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 31 [2024-02-09 14:17:51,866 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-02-09 14:17:51,867 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-02-09 14:17:51,868 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-02-09 14:17:51,868 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-02-09 14:17:51,876 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 02:17:51" (1/1) ... [2024-02-09 14:17:51,879 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 02:17:51" (1/1) ... [2024-02-09 14:17:51,879 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 02:17:51" (1/1) ... [2024-02-09 14:17:51,883 INFO L175 MemorySlicer]: No memory access in input program. [2024-02-09 14:17:51,884 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 02:17:51" (1/1) ... [2024-02-09 14:17:51,884 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 02:17:51" (1/1) ... [2024-02-09 14:17:51,885 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 02:17:51" (1/1) ... [2024-02-09 14:17:51,887 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 02:17:51" (1/1) ... [2024-02-09 14:17:51,888 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 02:17:51" (1/1) ... [2024-02-09 14:17:51,888 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 02:17:51" (1/1) ... [2024-02-09 14:17:51,889 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-02-09 14:17:51,890 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-02-09 14:17:51,890 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-02-09 14:17:51,890 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-02-09 14:17:51,891 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 02:17:51" (1/1) ... [2024-02-09 14:17:51,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 14:17:51,906 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 14:17:51,918 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) [2024-02-09 14:17:51,925 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 [2024-02-09 14:17:51,964 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-02-09 14:17:51,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-02-09 14:17:52,040 INFO L241 CfgBuilder]: Building ICFG [2024-02-09 14:17:52,062 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2024-02-09 14:17:52,205 INFO L282 CfgBuilder]: Performing block encoding [2024-02-09 14:17:52,232 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-02-09 14:17:52,232 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2024-02-09 14:17:52,233 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 02:17:52 BoogieIcfgContainer [2024-02-09 14:17:52,233 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-02-09 14:17:52,233 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-02-09 14:17:52,234 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-02-09 14:17:52,236 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-02-09 14:17:52,242 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-02-09 14:17:52,242 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 09.02 02:17:51" (1/3) ... [2024-02-09 14:17:52,243 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4f7a3b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.02 02:17:52, skipping insertion in model container [2024-02-09 14:17:52,244 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-02-09 14:17:52,244 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 02:17:51" (2/3) ... [2024-02-09 14:17:52,244 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4f7a3b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.02 02:17:52, skipping insertion in model container [2024-02-09 14:17:52,247 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-02-09 14:17:52,248 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 02:17:52" (3/3) ... [2024-02-09 14:17:52,249 INFO L332 chiAutomizerObserver]: Analyzing ICFG or-01.c [2024-02-09 14:17:52,319 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2024-02-09 14:17:52,319 INFO L304 stractBuchiCegarLoop]: Hoare is false [2024-02-09 14:17:52,319 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-02-09 14:17:52,319 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-02-09 14:17:52,320 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-02-09 14:17:52,320 INFO L308 stractBuchiCegarLoop]: Difference is false [2024-02-09 14:17:52,320 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-02-09 14:17:52,320 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-02-09 14:17:52,323 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-09 14:17:52,339 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-02-09 14:17:52,339 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-02-09 14:17:52,340 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-02-09 14:17:52,344 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-02-09 14:17:52,344 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-02-09 14:17:52,344 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-02-09 14:17:52,345 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-09 14:17:52,346 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-02-09 14:17:52,347 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-02-09 14:17:52,347 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-02-09 14:17:52,347 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-02-09 14:17:52,347 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-02-09 14:17:52,362 INFO L748 eck$LassoCheckResult]: Stem: 7#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~nondet2#1, main_~a~0#1, main_~b~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~b~0#1;havoc main_~x~0#1;main_~a~0#1 := 16;main_~b~0#1 := 30;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 5#L20-2true [2024-02-09 14:17:52,363 INFO L750 eck$LassoCheckResult]: Loop: 5#L20-2true assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 3#L22true assume 0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1;main_#t~nondet2#1 := main_~a~0#1; 8#L22-4true main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 5#L20-2true [2024-02-09 14:17:52,366 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 14:17:52,367 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-02-09 14:17:52,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-09 14:17:52,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686198870] [2024-02-09 14:17:52,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-09 14:17:52,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-09 14:17:52,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 14:17:52,528 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-09 14:17:52,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 14:17:52,550 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-09 14:17:52,568 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 14:17:52,568 INFO L85 PathProgramCache]: Analyzing trace with hash 40819, now seen corresponding path program 1 times [2024-02-09 14:17:52,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-09 14:17:52,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241743263] [2024-02-09 14:17:52,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-09 14:17:52,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-09 14:17:52,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 14:17:52,589 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-09 14:17:52,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 14:17:52,608 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-09 14:17:52,611 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 14:17:52,611 INFO L85 PathProgramCache]: Analyzing trace with hash 28699761, now seen corresponding path program 1 times [2024-02-09 14:17:52,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-09 14:17:52,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959065996] [2024-02-09 14:17:52,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-09 14:17:52,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-09 14:17:52,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-09 14:17:52,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-09 14:17:52,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-09 14:17:52,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959065996] [2024-02-09 14:17:52,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959065996] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-09 14:17:52,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-09 14:17:52,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-02-09 14:17:52,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510456189] [2024-02-09 14:17:52,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-09 14:17:52,920 INFO L210 LassoAnalysis]: Preferences: [2024-02-09 14:17:52,921 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2024-02-09 14:17:52,921 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-02-09 14:17:52,921 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2024-02-09 14:17:52,921 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2024-02-09 14:17:52,921 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 14:17:52,921 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2024-02-09 14:17:52,921 INFO L132 ssoRankerPreferences]: Path of dumped script: [2024-02-09 14:17:52,921 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-01.c_Iteration1_Loop [2024-02-09 14:17:52,922 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2024-02-09 14:17:52,922 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2024-02-09 14:17:52,934 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 14:17:52,941 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 14:17:52,953 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 14:17:53,021 INFO L294 LassoAnalysis]: Preprocessing complete. [2024-02-09 14:17:53,022 INFO L404 LassoAnalysis]: Checking for nontermination... [2024-02-09 14:17:53,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 14:17:53,025 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 14:17:53,027 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-02-09 14:17:53,043 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-02-09 14:17:53,044 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-02-09 14:17:53,044 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-02-09 14:17:53,065 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2024-02-09 14:17:53,066 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post1#1=0} Honda state: {ULTIMATE.start_main_#t~post1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-02-09 14:17:53,072 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2024-02-09 14:17:53,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 14:17:53,072 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 14:17:53,074 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-02-09 14:17:53,079 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-02-09 14:17:53,079 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-02-09 14:17:53,092 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-02-09 14:17:53,096 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2024-02-09 14:17:53,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 14:17:53,097 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 14:17:53,099 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) [2024-02-09 14:17:53,101 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 [2024-02-09 14:17:53,102 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-02-09 14:17:53,102 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-02-09 14:17:53,328 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-02-09 14:17:53,332 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 [2024-02-09 14:17:53,333 INFO L210 LassoAnalysis]: Preferences: [2024-02-09 14:17:53,333 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2024-02-09 14:17:53,333 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-02-09 14:17:53,333 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2024-02-09 14:17:53,333 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2024-02-09 14:17:53,333 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 14:17:53,333 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2024-02-09 14:17:53,333 INFO L132 ssoRankerPreferences]: Path of dumped script: [2024-02-09 14:17:53,333 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-01.c_Iteration1_Loop [2024-02-09 14:17:53,333 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2024-02-09 14:17:53,333 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2024-02-09 14:17:53,336 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 14:17:53,342 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 14:17:53,356 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 14:17:53,423 INFO L294 LassoAnalysis]: Preprocessing complete. [2024-02-09 14:17:53,427 INFO L490 LassoAnalysis]: Using template 'affine'. [2024-02-09 14:17:53,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 14:17:53,428 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 14:17:53,446 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) [2024-02-09 14:17:53,450 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-02-09 14:17:53,458 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-02-09 14:17:53,458 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-02-09 14:17:53,458 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-02-09 14:17:53,459 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-02-09 14:17:53,459 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-02-09 14:17:53,460 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-02-09 14:17:53,460 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-02-09 14:17:53,463 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 [2024-02-09 14:17:53,472 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-02-09 14:17:53,477 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2024-02-09 14:17:53,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 14:17:53,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 14:17:53,494 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) [2024-02-09 14:17:53,499 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 [2024-02-09 14:17:53,506 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-02-09 14:17:53,506 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-02-09 14:17:53,506 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-02-09 14:17:53,506 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-02-09 14:17:53,506 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-02-09 14:17:53,510 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2024-02-09 14:17:53,510 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-02-09 14:17:53,514 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 [2024-02-09 14:17:53,522 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-02-09 14:17:53,527 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2024-02-09 14:17:53,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 14:17:53,528 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 14:17:53,529 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) [2024-02-09 14:17:53,534 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 [2024-02-09 14:17:53,540 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-02-09 14:17:53,541 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-02-09 14:17:53,541 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-02-09 14:17:53,541 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-02-09 14:17:53,541 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-02-09 14:17:53,541 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-02-09 14:17:53,542 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-02-09 14:17:53,544 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 [2024-02-09 14:17:53,553 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-02-09 14:17:53,558 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2024-02-09 14:17:53,558 INFO L490 LassoAnalysis]: Using template '2-nested'. [2024-02-09 14:17:53,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 14:17:53,558 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 14:17:53,559 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) [2024-02-09 14:17:53,564 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 [2024-02-09 14:17:53,570 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-02-09 14:17:53,571 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-02-09 14:17:53,571 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-02-09 14:17:53,571 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-02-09 14:17:53,571 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2024-02-09 14:17:53,572 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2024-02-09 14:17:53,572 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-02-09 14:17:53,575 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 [2024-02-09 14:17:53,583 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-02-09 14:17:53,589 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2024-02-09 14:17:53,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 14:17:53,589 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 14:17:53,590 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) [2024-02-09 14:17:53,595 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 [2024-02-09 14:17:53,601 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-02-09 14:17:53,601 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-02-09 14:17:53,602 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-02-09 14:17:53,602 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-02-09 14:17:53,602 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2024-02-09 14:17:53,602 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 [2024-02-09 14:17:53,607 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-02-09 14:17:53,607 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-02-09 14:17:53,623 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-02-09 14:17:53,632 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2024-02-09 14:17:53,632 INFO L444 ModelExtractionUtils]: 5 out of 9 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-02-09 14:17:53,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 14:17:53,634 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 14:17:53,717 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) [2024-02-09 14:17:53,722 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-02-09 14:17:53,722 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-02-09 14:17:53,722 INFO L513 LassoAnalysis]: Proved termination. [2024-02-09 14:17:53,723 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = -1*ULTIMATE.start_main_~a~0#1 f1 = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2024-02-09 14:17:53,727 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 [2024-02-09 14:17:53,745 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2024-02-09 14:17:53,748 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-02-09 14:17:53,758 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: IfThenElseExpression (if -1 * ~a~0 > 0 then 1 else 0) could not be translated [2024-02-09 14:17:53,758 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: IfThenElseExpression (if -1 * ~a~0 > 0 then -1 * ~a~0 else ~x~0) could not be translated [2024-02-09 14:17:53,770 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 14:17:53,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-09 14:17:53,778 INFO L262 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2024-02-09 14:17:53,779 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-02-09 14:17:53,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-09 14:17:53,792 WARN L260 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 9 conjunts are in the unsatisfiable core [2024-02-09 14:17:53,793 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-02-09 14:17:53,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-09 14:17:53,933 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-02-09 14:17:53,934 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) [2024-02-09 14:17:54,031 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 30 states and 42 transitions. Complement of second has 12 states. [2024-02-09 14:17:54,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2024-02-09 14:17:54,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) [2024-02-09 14:17:54,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 14 transitions. [2024-02-09 14:17:54,038 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 14 transitions. Stem has 2 letters. Loop has 3 letters. [2024-02-09 14:17:54,039 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-02-09 14:17:54,039 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 14 transitions. Stem has 5 letters. Loop has 3 letters. [2024-02-09 14:17:54,039 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-02-09 14:17:54,039 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 14 transitions. Stem has 2 letters. Loop has 6 letters. [2024-02-09 14:17:54,039 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-02-09 14:17:54,040 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 42 transitions. [2024-02-09 14:17:54,042 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-02-09 14:17:54,044 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 16 states and 21 transitions. [2024-02-09 14:17:54,045 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2024-02-09 14:17:54,045 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2024-02-09 14:17:54,046 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 21 transitions. [2024-02-09 14:17:54,046 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-02-09 14:17:54,046 INFO L218 hiAutomatonCegarLoop]: Abstraction has 16 states and 21 transitions. [2024-02-09 14:17:54,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 21 transitions. [2024-02-09 14:17:54,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 13. [2024-02-09 14:17:54,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 12 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) [2024-02-09 14:17:54,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 18 transitions. [2024-02-09 14:17:54,064 INFO L240 hiAutomatonCegarLoop]: Abstraction has 13 states and 18 transitions. [2024-02-09 14:17:54,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-09 14:17:54,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-09 14:17:54,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-02-09 14:17:54,067 INFO L87 Difference]: Start difference. First operand 13 states and 18 transitions. Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) [2024-02-09 14:17:54,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-02-09 14:17:54,085 INFO L93 Difference]: Finished difference Result 13 states and 16 transitions. [2024-02-09 14:17:54,085 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 16 transitions. [2024-02-09 14:17:54,086 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-02-09 14:17:54,086 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 13 states and 16 transitions. [2024-02-09 14:17:54,087 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2024-02-09 14:17:54,087 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2024-02-09 14:17:54,087 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 16 transitions. [2024-02-09 14:17:54,087 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-02-09 14:17:54,087 INFO L218 hiAutomatonCegarLoop]: Abstraction has 13 states and 16 transitions. [2024-02-09 14:17:54,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 16 transitions. [2024-02-09 14:17:54,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 11. [2024-02-09 14:17:54,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-09 14:17:54,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2024-02-09 14:17:54,088 INFO L240 hiAutomatonCegarLoop]: Abstraction has 11 states and 14 transitions. [2024-02-09 14:17:54,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-09 14:17:54,089 INFO L428 stractBuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2024-02-09 14:17:54,090 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-02-09 14:17:54,090 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 14 transitions. [2024-02-09 14:17:54,090 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-02-09 14:17:54,090 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-02-09 14:17:54,090 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-02-09 14:17:54,091 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2024-02-09 14:17:54,092 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-02-09 14:17:54,092 INFO L748 eck$LassoCheckResult]: Stem: 125#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 126#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~nondet2#1, main_~a~0#1, main_~b~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~b~0#1;havoc main_~x~0#1;main_~a~0#1 := 16;main_~b~0#1 := 30;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 123#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 121#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 122#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 127#L22-4 [2024-02-09 14:17:54,092 INFO L750 eck$LassoCheckResult]: Loop: 127#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 128#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 131#L22 assume 0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1;main_#t~nondet2#1 := main_~a~0#1; 127#L22-4 [2024-02-09 14:17:54,092 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 14:17:54,093 INFO L85 PathProgramCache]: Analyzing trace with hash 28699821, now seen corresponding path program 1 times [2024-02-09 14:17:54,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-09 14:17:54,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406820114] [2024-02-09 14:17:54,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-09 14:17:54,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-09 14:17:54,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 14:17:54,099 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-09 14:17:54,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 14:17:54,104 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-09 14:17:54,105 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 14:17:54,105 INFO L85 PathProgramCache]: Analyzing trace with hash 52249, now seen corresponding path program 2 times [2024-02-09 14:17:54,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-09 14:17:54,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058019707] [2024-02-09 14:17:54,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-09 14:17:54,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-09 14:17:54,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 14:17:54,109 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-09 14:17:54,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 14:17:54,113 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-09 14:17:54,113 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 14:17:54,113 INFO L85 PathProgramCache]: Analyzing trace with hash 297897965, now seen corresponding path program 1 times [2024-02-09 14:17:54,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-09 14:17:54,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943221976] [2024-02-09 14:17:54,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-09 14:17:54,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-09 14:17:54,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-09 14:17:54,200 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2024-02-09 14:17:54,268 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-09 14:17:54,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-09 14:17:54,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943221976] [2024-02-09 14:17:54,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943221976] provided 0 perfect and 1 imperfect interpolant sequences [2024-02-09 14:17:54,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [423729890] [2024-02-09 14:17:54,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-09 14:17:54,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-02-09 14:17:54,269 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 14:17:54,284 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-02-09 14:17:54,290 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-02-09 14:17:54,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-09 14:17:54,310 INFO L262 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 10 conjunts are in the unsatisfiable core [2024-02-09 14:17:54,310 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-02-09 14:17:54,371 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-09 14:17:54,372 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-02-09 14:17:54,532 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-09 14:17:54,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [423729890] provided 0 perfect and 2 imperfect interpolant sequences [2024-02-09 14:17:54,532 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-02-09 14:17:54,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 6] total 15 [2024-02-09 14:17:54,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758035783] [2024-02-09 14:17:54,532 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-02-09 14:17:54,562 INFO L210 LassoAnalysis]: Preferences: [2024-02-09 14:17:54,562 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2024-02-09 14:17:54,562 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-02-09 14:17:54,562 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2024-02-09 14:17:54,562 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2024-02-09 14:17:54,562 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 14:17:54,562 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2024-02-09 14:17:54,562 INFO L132 ssoRankerPreferences]: Path of dumped script: [2024-02-09 14:17:54,562 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-01.c_Iteration2_Loop [2024-02-09 14:17:54,562 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2024-02-09 14:17:54,562 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2024-02-09 14:17:54,563 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 14:17:54,564 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 14:17:54,632 INFO L294 LassoAnalysis]: Preprocessing complete. [2024-02-09 14:17:54,632 INFO L404 LassoAnalysis]: Checking for nontermination... [2024-02-09 14:17:54,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 14:17:54,632 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 14:17:54,633 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) [2024-02-09 14:17:54,634 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 [2024-02-09 14:17:54,637 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-02-09 14:17:54,637 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-02-09 14:17:54,656 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2024-02-09 14:17:54,656 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post1#1=0} Honda state: {ULTIMATE.start_main_#t~post1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-02-09 14:17:54,662 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2024-02-09 14:17:54,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 14:17:54,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 14:17:54,672 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) [2024-02-09 14:17:54,709 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 [2024-02-09 14:17:54,721 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-02-09 14:17:54,721 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-02-09 14:17:54,745 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2024-02-09 14:17:54,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 14:17:54,745 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 14:17:54,746 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) [2024-02-09 14:17:54,747 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 [2024-02-09 14:17:54,748 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-02-09 14:17:54,748 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-02-09 14:17:55,197 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-02-09 14:17:55,205 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 [2024-02-09 14:17:55,205 INFO L210 LassoAnalysis]: Preferences: [2024-02-09 14:17:55,205 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2024-02-09 14:17:55,205 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-02-09 14:17:55,205 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2024-02-09 14:17:55,206 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2024-02-09 14:17:55,206 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 14:17:55,206 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2024-02-09 14:17:55,206 INFO L132 ssoRankerPreferences]: Path of dumped script: [2024-02-09 14:17:55,206 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-01.c_Iteration2_Loop [2024-02-09 14:17:55,206 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2024-02-09 14:17:55,206 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2024-02-09 14:17:55,207 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 14:17:55,209 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 14:17:55,293 INFO L294 LassoAnalysis]: Preprocessing complete. [2024-02-09 14:17:55,294 INFO L490 LassoAnalysis]: Using template 'affine'. [2024-02-09 14:17:55,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 14:17:55,294 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 14:17:55,295 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) [2024-02-09 14:17:55,308 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 [2024-02-09 14:17:55,314 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-02-09 14:17:55,315 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-02-09 14:17:55,315 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-02-09 14:17:55,315 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-02-09 14:17:55,315 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-02-09 14:17:55,315 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-02-09 14:17:55,316 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-02-09 14:17:55,317 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-02-09 14:17:55,318 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 [2024-02-09 14:17:55,336 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 [2024-02-09 14:17:55,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 14:17:55,336 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 14:17:55,349 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) [2024-02-09 14:17:55,353 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 [2024-02-09 14:17:55,361 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-02-09 14:17:55,361 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-02-09 14:17:55,361 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-02-09 14:17:55,361 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-02-09 14:17:55,361 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-02-09 14:17:55,369 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2024-02-09 14:17:55,369 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-02-09 14:17:55,373 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 [2024-02-09 14:17:55,380 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-02-09 14:17:55,398 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 [2024-02-09 14:17:55,399 INFO L490 LassoAnalysis]: Using template '2-nested'. [2024-02-09 14:17:55,399 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 14:17:55,399 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 14:17:55,401 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) [2024-02-09 14:17:55,403 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 [2024-02-09 14:17:55,442 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 [2024-02-09 14:17:55,449 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-02-09 14:17:55,449 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-02-09 14:17:55,449 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-02-09 14:17:55,449 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-02-09 14:17:55,449 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2024-02-09 14:17:55,453 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2024-02-09 14:17:55,454 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-02-09 14:17:55,469 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-02-09 14:17:55,474 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2024-02-09 14:17:55,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 14:17:55,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 14:17:55,484 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) [2024-02-09 14:17:55,519 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 [2024-02-09 14:17:55,526 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-02-09 14:17:55,526 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-02-09 14:17:55,526 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-02-09 14:17:55,526 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-02-09 14:17:55,527 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2024-02-09 14:17:55,532 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-02-09 14:17:55,532 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-02-09 14:17:55,537 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 [2024-02-09 14:17:55,544 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-02-09 14:17:55,558 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2024-02-09 14:17:55,558 INFO L444 ModelExtractionUtils]: 6 out of 11 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-02-09 14:17:55,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 14:17:55,558 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 14:17:55,560 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) [2024-02-09 14:17:55,562 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 [2024-02-09 14:17:55,602 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-02-09 14:17:55,602 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-02-09 14:17:55,602 INFO L513 LassoAnalysis]: Proved termination. [2024-02-09 14:17:55,602 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = -1*ULTIMATE.start_main_~a~0#1 f1 = 1*ULTIMATE.start_main_~x~0#1 - 1*ULTIMATE.start_main_#t~nondet2#1 Supporting invariants [] [2024-02-09 14:17:55,606 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2024-02-09 14:17:55,607 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-02-09 14:17:55,608 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: IfThenElseExpression (if -1 * ~a~0 > 0 then 1 else 0) could not be translated [2024-02-09 14:17:55,608 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: IfThenElseExpression (if -1 * ~a~0 > 0 then -1 * ~a~0 else ~x~0 + -1 * #t~nondet2) could not be translated [2024-02-09 14:17:55,620 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 14:17:55,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-09 14:17:55,626 INFO L262 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2024-02-09 14:17:55,626 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-02-09 14:17:55,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-09 14:17:55,652 WARN L260 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 9 conjunts are in the unsatisfiable core [2024-02-09 14:17:55,653 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-02-09 14:17:55,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-09 14:17:55,808 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-02-09 14:17:55,808 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 4 Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-09 14:17:55,828 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 4. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 25 states and 33 transitions. Complement of second has 7 states. [2024-02-09 14:17:55,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-02-09 14:17:55,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-09 14:17:55,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2024-02-09 14:17:55,829 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 5 letters. Loop has 3 letters. [2024-02-09 14:17:55,830 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-02-09 14:17:55,830 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 8 letters. Loop has 3 letters. [2024-02-09 14:17:55,830 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-02-09 14:17:55,830 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 5 letters. Loop has 6 letters. [2024-02-09 14:17:55,830 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-02-09 14:17:55,830 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 33 transitions. [2024-02-09 14:17:55,831 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2024-02-09 14:17:55,831 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 24 states and 32 transitions. [2024-02-09 14:17:55,831 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2024-02-09 14:17:55,832 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2024-02-09 14:17:55,832 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 32 transitions. [2024-02-09 14:17:55,832 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-02-09 14:17:55,832 INFO L218 hiAutomatonCegarLoop]: Abstraction has 24 states and 32 transitions. [2024-02-09 14:17:55,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 32 transitions. [2024-02-09 14:17:55,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 23. [2024-02-09 14:17:55,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 22 states have internal predecessors, (31), 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) [2024-02-09 14:17:55,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 31 transitions. [2024-02-09 14:17:55,834 INFO L240 hiAutomatonCegarLoop]: Abstraction has 23 states and 31 transitions. [2024-02-09 14:17:55,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-09 14:17:55,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-02-09 14:17:55,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2024-02-09 14:17:55,834 INFO L87 Difference]: Start difference. First operand 23 states and 31 transitions. Second operand has 16 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 16 states have internal predecessors, (22), 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) [2024-02-09 14:17:55,910 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2024-02-09 14:17:56,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-02-09 14:17:56,075 INFO L93 Difference]: Finished difference Result 31 states and 36 transitions. [2024-02-09 14:17:56,075 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 36 transitions. [2024-02-09 14:17:56,079 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-02-09 14:17:56,079 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 29 states and 34 transitions. [2024-02-09 14:17:56,079 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2024-02-09 14:17:56,080 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2024-02-09 14:17:56,080 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 34 transitions. [2024-02-09 14:17:56,080 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-02-09 14:17:56,080 INFO L218 hiAutomatonCegarLoop]: Abstraction has 29 states and 34 transitions. [2024-02-09 14:17:56,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 34 transitions. [2024-02-09 14:17:56,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 20. [2024-02-09 14:17:56,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 20 states have (on average 1.2) internal successors, (24), 19 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-09 14:17:56,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 24 transitions. [2024-02-09 14:17:56,083 INFO L240 hiAutomatonCegarLoop]: Abstraction has 20 states and 24 transitions. [2024-02-09 14:17:56,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-02-09 14:17:56,097 INFO L428 stractBuchiCegarLoop]: Abstraction has 20 states and 24 transitions. [2024-02-09 14:17:56,097 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-02-09 14:17:56,097 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 24 transitions. [2024-02-09 14:17:56,097 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-02-09 14:17:56,097 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-02-09 14:17:56,097 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-02-09 14:17:56,097 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 3, 2, 2, 1, 1] [2024-02-09 14:17:56,097 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-02-09 14:17:56,098 INFO L748 eck$LassoCheckResult]: Stem: 340#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 341#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~nondet2#1, main_~a~0#1, main_~b~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~b~0#1;havoc main_~x~0#1;main_~a~0#1 := 16;main_~b~0#1 := 30;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 345#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 348#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 347#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 346#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 338#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 334#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 335#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 342#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 343#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 352#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 349#L22-2 [2024-02-09 14:17:56,098 INFO L750 eck$LassoCheckResult]: Loop: 349#L22-2 assume 0 == main_~a~0#1;main_#t~nondet2#1 := main_~b~0#1; 350#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 353#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 351#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 349#L22-2 [2024-02-09 14:17:56,098 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 14:17:56,098 INFO L85 PathProgramCache]: Analyzing trace with hash 898884598, now seen corresponding path program 1 times [2024-02-09 14:17:56,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-09 14:17:56,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997741570] [2024-02-09 14:17:56,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-09 14:17:56,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-09 14:17:56,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 14:17:56,105 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-09 14:17:56,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 14:17:56,125 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-09 14:17:56,125 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 14:17:56,129 INFO L85 PathProgramCache]: Analyzing trace with hash 1512010, now seen corresponding path program 1 times [2024-02-09 14:17:56,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-09 14:17:56,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146381611] [2024-02-09 14:17:56,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-09 14:17:56,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-09 14:17:56,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 14:17:56,134 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-09 14:17:56,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 14:17:56,137 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-09 14:17:56,138 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 14:17:56,138 INFO L85 PathProgramCache]: Analyzing trace with hash -1065487425, now seen corresponding path program 1 times [2024-02-09 14:17:56,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-09 14:17:56,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833385205] [2024-02-09 14:17:56,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-09 14:17:56,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-09 14:17:56,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-09 14:17:56,205 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-09 14:17:56,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-09 14:17:56,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833385205] [2024-02-09 14:17:56,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833385205] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-09 14:17:56,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-09 14:17:56,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-02-09 14:17:56,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219981279] [2024-02-09 14:17:56,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-09 14:17:56,236 INFO L210 LassoAnalysis]: Preferences: [2024-02-09 14:17:56,237 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2024-02-09 14:17:56,237 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-02-09 14:17:56,237 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2024-02-09 14:17:56,237 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2024-02-09 14:17:56,237 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 14:17:56,237 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2024-02-09 14:17:56,237 INFO L132 ssoRankerPreferences]: Path of dumped script: [2024-02-09 14:17:56,238 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-01.c_Iteration3_Loop [2024-02-09 14:17:56,238 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2024-02-09 14:17:56,238 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2024-02-09 14:17:56,239 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 14:17:56,243 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 14:17:56,244 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 14:17:56,246 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 14:17:56,319 INFO L294 LassoAnalysis]: Preprocessing complete. [2024-02-09 14:17:56,319 INFO L404 LassoAnalysis]: Checking for nontermination... [2024-02-09 14:17:56,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 14:17:56,319 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 14:17:56,320 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) [2024-02-09 14:17:56,341 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-02-09 14:17:56,342 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-02-09 14:17:56,350 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 [2024-02-09 14:17:56,364 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2024-02-09 14:17:56,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 14:17:56,365 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 14:17:56,365 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) [2024-02-09 14:17:56,370 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-02-09 14:17:56,370 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-02-09 14:17:56,376 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 [2024-02-09 14:17:56,385 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-02-09 14:17:56,403 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2024-02-09 14:17:56,403 INFO L210 LassoAnalysis]: Preferences: [2024-02-09 14:17:56,404 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2024-02-09 14:17:56,404 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-02-09 14:17:56,404 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2024-02-09 14:17:56,404 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2024-02-09 14:17:56,404 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 14:17:56,404 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2024-02-09 14:17:56,404 INFO L132 ssoRankerPreferences]: Path of dumped script: [2024-02-09 14:17:56,404 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-01.c_Iteration3_Loop [2024-02-09 14:17:56,404 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2024-02-09 14:17:56,404 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2024-02-09 14:17:56,405 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 14:17:56,410 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 14:17:56,412 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 14:17:56,414 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 14:17:56,499 INFO L294 LassoAnalysis]: Preprocessing complete. [2024-02-09 14:17:56,499 INFO L490 LassoAnalysis]: Using template 'affine'. [2024-02-09 14:17:56,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 14:17:56,499 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 14:17:56,500 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) [2024-02-09 14:17:56,503 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 [2024-02-09 14:17:56,509 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-02-09 14:17:56,509 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-02-09 14:17:56,509 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-02-09 14:17:56,509 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-02-09 14:17:56,509 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-02-09 14:17:56,510 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-02-09 14:17:56,510 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-02-09 14:17:56,513 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 [2024-02-09 14:17:56,520 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-02-09 14:17:56,522 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-02-09 14:17:56,522 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-02-09 14:17:56,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 14:17:56,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 14:17:56,523 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) [2024-02-09 14:17:56,525 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-02-09 14:17:56,525 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-02-09 14:17:56,525 INFO L513 LassoAnalysis]: Proved termination. [2024-02-09 14:17:56,525 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~a~0#1) = -2*ULTIMATE.start_main_~a~0#1 + 1 Supporting invariants [] [2024-02-09 14:17:56,527 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 [2024-02-09 14:17:56,539 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 [2024-02-09 14:17:56,539 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-02-09 14:17:56,550 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 14:17:56,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-09 14:17:56,559 INFO L262 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjunts are in the unsatisfiable core [2024-02-09 14:17:56,560 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-02-09 14:17:56,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-09 14:17:56,573 INFO L262 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 4 conjunts are in the unsatisfiable core [2024-02-09 14:17:56,574 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-02-09 14:17:56,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-09 14:17:56,594 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-02-09 14:17:56,594 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 24 transitions. cyclomatic complexity: 6 Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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) [2024-02-09 14:17:56,616 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states and 24 transitions. cyclomatic complexity: 6. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 50 states and 62 transitions. Complement of second has 6 states. [2024-02-09 14:17:56,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-02-09 14:17:56,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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) [2024-02-09 14:17:56,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2024-02-09 14:17:56,619 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 12 letters. Loop has 4 letters. [2024-02-09 14:17:56,619 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-02-09 14:17:56,619 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 16 letters. Loop has 4 letters. [2024-02-09 14:17:56,620 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-02-09 14:17:56,620 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 12 letters. Loop has 8 letters. [2024-02-09 14:17:56,620 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-02-09 14:17:56,620 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 50 states and 62 transitions. [2024-02-09 14:17:56,622 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-02-09 14:17:56,623 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 50 states to 41 states and 51 transitions. [2024-02-09 14:17:56,624 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2024-02-09 14:17:56,624 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2024-02-09 14:17:56,624 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 51 transitions. [2024-02-09 14:17:56,624 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-02-09 14:17:56,624 INFO L218 hiAutomatonCegarLoop]: Abstraction has 41 states and 51 transitions. [2024-02-09 14:17:56,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states and 51 transitions. [2024-02-09 14:17:56,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 36. [2024-02-09 14:17:56,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 36 states have (on average 1.2777777777777777) internal successors, (46), 35 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-09 14:17:56,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 46 transitions. [2024-02-09 14:17:56,628 INFO L240 hiAutomatonCegarLoop]: Abstraction has 36 states and 46 transitions. [2024-02-09 14:17:56,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-09 14:17:56,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-02-09 14:17:56,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-02-09 14:17:56,629 INFO L87 Difference]: Start difference. First operand 36 states and 46 transitions. Second operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 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) [2024-02-09 14:17:56,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-02-09 14:17:56,644 INFO L93 Difference]: Finished difference Result 30 states and 33 transitions. [2024-02-09 14:17:56,644 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 33 transitions. [2024-02-09 14:17:56,646 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-02-09 14:17:56,648 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 16 states and 17 transitions. [2024-02-09 14:17:56,648 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2024-02-09 14:17:56,648 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2024-02-09 14:17:56,648 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 17 transitions. [2024-02-09 14:17:56,648 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-02-09 14:17:56,648 INFO L218 hiAutomatonCegarLoop]: Abstraction has 16 states and 17 transitions. [2024-02-09 14:17:56,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 17 transitions. [2024-02-09 14:17:56,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2024-02-09 14:17:56,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.0625) internal successors, (17), 15 states have internal predecessors, (17), 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) [2024-02-09 14:17:56,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2024-02-09 14:17:56,651 INFO L240 hiAutomatonCegarLoop]: Abstraction has 16 states and 17 transitions. [2024-02-09 14:17:56,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-02-09 14:17:56,653 INFO L428 stractBuchiCegarLoop]: Abstraction has 16 states and 17 transitions. [2024-02-09 14:17:56,653 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-02-09 14:17:56,653 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 17 transitions. [2024-02-09 14:17:56,653 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-02-09 14:17:56,653 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-02-09 14:17:56,654 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-02-09 14:17:56,654 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 3, 2, 2, 1, 1] [2024-02-09 14:17:56,654 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-02-09 14:17:56,654 INFO L748 eck$LassoCheckResult]: Stem: 548#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 549#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~nondet2#1, main_~a~0#1, main_~b~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~b~0#1;havoc main_~x~0#1;main_~a~0#1 := 16;main_~b~0#1 := 30;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 547#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 545#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 546#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 550#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 551#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 560#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 559#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 558#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 557#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 556#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 553#L22-2 [2024-02-09 14:17:56,655 INFO L750 eck$LassoCheckResult]: Loop: 553#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 554#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 555#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 552#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 553#L22-2 [2024-02-09 14:17:56,655 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 14:17:56,655 INFO L85 PathProgramCache]: Analyzing trace with hash 898884598, now seen corresponding path program 2 times [2024-02-09 14:17:56,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-09 14:17:56,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282971123] [2024-02-09 14:17:56,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-09 14:17:56,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-09 14:17:56,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 14:17:56,673 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-09 14:17:56,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 14:17:56,684 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-09 14:17:56,686 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 14:17:56,686 INFO L85 PathProgramCache]: Analyzing trace with hash 1571592, now seen corresponding path program 1 times [2024-02-09 14:17:56,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-09 14:17:56,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655442269] [2024-02-09 14:17:56,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-09 14:17:56,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-09 14:17:56,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 14:17:56,690 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-09 14:17:56,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 14:17:56,695 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-09 14:17:56,702 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 14:17:56,702 INFO L85 PathProgramCache]: Analyzing trace with hash -1065427843, now seen corresponding path program 3 times [2024-02-09 14:17:56,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-09 14:17:56,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697732446] [2024-02-09 14:17:56,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-09 14:17:56,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-09 14:17:56,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 14:17:56,711 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-09 14:17:56,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 14:17:56,719 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-09 14:17:56,847 INFO L210 LassoAnalysis]: Preferences: [2024-02-09 14:17:56,847 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2024-02-09 14:17:56,847 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-02-09 14:17:56,847 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2024-02-09 14:17:56,847 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2024-02-09 14:17:56,847 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 14:17:56,847 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2024-02-09 14:17:56,847 INFO L132 ssoRankerPreferences]: Path of dumped script: [2024-02-09 14:17:56,847 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-01.c_Iteration4_Loop [2024-02-09 14:17:56,848 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2024-02-09 14:17:56,848 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2024-02-09 14:17:56,850 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 14:17:56,888 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 14:17:56,941 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2024-02-09 14:17:57,006 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2024-02-09 14:17:57,347 INFO L294 LassoAnalysis]: Preprocessing complete. [2024-02-09 14:17:57,347 INFO L404 LassoAnalysis]: Checking for nontermination... [2024-02-09 14:17:57,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 14:17:57,347 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 14:17:57,352 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) [2024-02-09 14:17:57,373 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-02-09 14:17:57,373 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-02-09 14:17:57,387 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 [2024-02-09 14:17:57,397 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2024-02-09 14:17:57,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 14:17:57,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 14:17:57,399 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) [2024-02-09 14:17:57,402 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-02-09 14:17:57,402 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-02-09 14:17:57,422 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 [2024-02-09 14:17:57,441 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2024-02-09 14:17:57,441 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~a~0#1=1, ULTIMATE.start_main_#t~nondet2#1=-1, ULTIMATE.start_main_~b~0#1=-1} Honda state: {ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~a~0#1=1, ULTIMATE.start_main_#t~nondet2#1=-1, ULTIMATE.start_main_~b~0#1=-1} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~a~0#1=1, ULTIMATE.start_main_#t~nondet2#1=0, ULTIMATE.start_main_~b~0#1=0}, {ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~a~0#1=0, ULTIMATE.start_main_#t~nondet2#1=0, ULTIMATE.start_main_~b~0#1=0}, {ULTIMATE.start_main_~x~0#1=1, ULTIMATE.start_main_~a~0#1=0, ULTIMATE.start_main_#t~nondet2#1=0, ULTIMATE.start_main_~b~0#1=0}] Lambdas: [1, 0, 1] Nus: [1, 0] [2024-02-09 14:17:57,451 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 [2024-02-09 14:17:57,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 14:17:57,452 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 14:17:57,453 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-02-09 14:17:57,457 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-02-09 14:17:57,457 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-02-09 14:17:57,465 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2024-02-09 14:17:57,472 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2024-02-09 14:17:57,472 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post1#1=0} Honda state: {ULTIMATE.start_main_#t~post1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-02-09 14:17:57,487 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2024-02-09 14:17:57,596 INFO L210 LassoAnalysis]: Preferences: [2024-02-09 14:17:57,596 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2024-02-09 14:17:57,596 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-02-09 14:17:57,596 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2024-02-09 14:17:57,596 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2024-02-09 14:17:57,596 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 14:17:57,596 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2024-02-09 14:17:57,596 INFO L132 ssoRankerPreferences]: Path of dumped script: [2024-02-09 14:17:57,596 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-01.c_Iteration4_Lasso [2024-02-09 14:17:57,596 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2024-02-09 14:17:57,596 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2024-02-09 14:17:57,597 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 14:17:57,599 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 14:17:57,641 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 14:17:57,643 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 14:17:57,699 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2024-02-09 14:17:58,044 INFO L294 LassoAnalysis]: Preprocessing complete. [2024-02-09 14:17:58,044 INFO L404 LassoAnalysis]: Checking for nontermination... [2024-02-09 14:17:58,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 14:17:58,044 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 14:17:58,052 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-02-09 14:17:58,054 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-02-09 14:17:58,055 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-02-09 14:17:58,062 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2024-02-09 14:17:58,062 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0#1=0} Honda state: {ULTIMATE.start_main_#t~nondet0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-02-09 14:17:58,064 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2024-02-09 14:17:58,065 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2024-02-09 14:17:58,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 14:17:58,065 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 14:17:58,066 INFO L229 MonitoredProcess]: Starting monitored process 28 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) [2024-02-09 14:17:58,067 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2024-02-09 14:17:58,068 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-02-09 14:17:58,068 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-02-09 14:17:58,091 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2024-02-09 14:17:58,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 14:17:58,092 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 14:17:58,092 INFO L229 MonitoredProcess]: Starting monitored process 29 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) [2024-02-09 14:17:58,105 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-02-09 14:17:58,105 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-02-09 14:17:58,136 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2024-02-09 14:17:58,147 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-02-09 14:17:58,151 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2024-02-09 14:17:58,151 INFO L210 LassoAnalysis]: Preferences: [2024-02-09 14:17:58,151 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2024-02-09 14:17:58,151 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-02-09 14:17:58,151 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2024-02-09 14:17:58,151 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2024-02-09 14:17:58,151 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 14:17:58,151 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2024-02-09 14:17:58,151 INFO L132 ssoRankerPreferences]: Path of dumped script: [2024-02-09 14:17:58,151 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-01.c_Iteration4_Lasso [2024-02-09 14:17:58,151 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2024-02-09 14:17:58,151 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2024-02-09 14:17:58,152 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 14:17:58,154 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 14:17:58,156 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 14:17:58,214 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 14:17:58,273 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2024-02-09 14:17:58,623 INFO L294 LassoAnalysis]: Preprocessing complete. [2024-02-09 14:17:58,623 INFO L490 LassoAnalysis]: Using template 'affine'. [2024-02-09 14:17:58,623 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 14:17:58,623 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 14:17:58,627 INFO L229 MonitoredProcess]: Starting monitored process 30 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) [2024-02-09 14:17:58,629 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 [2024-02-09 14:17:58,635 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-02-09 14:17:58,635 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-02-09 14:17:58,635 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-02-09 14:17:58,635 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-02-09 14:17:58,635 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-02-09 14:17:58,636 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-02-09 14:17:58,636 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-02-09 14:17:58,639 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2024-02-09 14:17:58,647 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-02-09 14:17:58,651 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2024-02-09 14:17:58,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 14:17:58,652 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 14:17:58,653 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-02-09 14:17:58,664 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 [2024-02-09 14:17:58,665 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2024-02-09 14:17:58,670 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-02-09 14:17:58,670 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-02-09 14:17:58,670 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-02-09 14:17:58,670 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-02-09 14:17:58,670 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-02-09 14:17:58,671 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-02-09 14:17:58,671 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-02-09 14:17:58,680 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-02-09 14:17:58,685 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2024-02-09 14:17:58,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 14:17:58,685 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 14:17:58,686 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-02-09 14:17:58,688 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2024-02-09 14:17:58,688 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 [2024-02-09 14:17:58,694 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-02-09 14:17:58,695 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-02-09 14:17:58,695 INFO L204 nArgumentSynthesizer]: 7 loop disjuncts [2024-02-09 14:17:58,695 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-02-09 14:17:58,800 INFO L401 nArgumentSynthesizer]: We have 126 Motzkin's Theorem applications. [2024-02-09 14:17:58,800 INFO L402 nArgumentSynthesizer]: A total of 14 supporting invariants were added. [2024-02-09 14:18:00,017 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-02-09 14:18:00,935 INFO L443 ModelExtractionUtils]: Simplification made 31 calls to the SMT solver. [2024-02-09 14:18:00,935 INFO L444 ModelExtractionUtils]: 36 out of 76 variables were initially zero. Simplification set additionally 25 variables to zero. [2024-02-09 14:18:00,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 14:18:00,936 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 14:18:00,937 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-02-09 14:18:00,939 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-02-09 14:18:00,940 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2024-02-09 14:18:00,968 INFO L438 nArgumentSynthesizer]: Removed 11 redundant supporting invariants from a total of 14. [2024-02-09 14:18:00,968 INFO L513 LassoAnalysis]: Proved termination. [2024-02-09 14:18:00,968 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 2*ULTIMATE.start_main_~x~0#1 + 1 Supporting invariants [1*ULTIMATE.start_main_~a~0#1 >= 0, 1*ULTIMATE.start_main_~b~0#1 - 1*ULTIMATE.start_main_~a~0#1 + 1 >= 0, 1*ULTIMATE.start_main_~x~0#1 >= 0] [2024-02-09 14:18:00,981 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2024-02-09 14:18:00,989 INFO L156 tatePredicateManager]: 1 out of 3 supporting invariants were superfluous and have been removed [2024-02-09 14:18:01,007 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 14:18:01,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-09 14:18:01,016 INFO L262 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 15 conjunts are in the unsatisfiable core [2024-02-09 14:18:01,017 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-02-09 14:18:01,086 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2024-02-09 14:18:01,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-09 14:18:01,144 WARN L260 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 11 conjunts are in the unsatisfiable core [2024-02-09 14:18:01,145 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-02-09 14:18:01,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-09 14:18:01,209 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.7 stem predicates 4 loop predicates [2024-02-09 14:18:01,209 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 17 transitions. cyclomatic complexity: 2 Second operand has 11 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 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) [2024-02-09 14:18:01,278 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 17 transitions. cyclomatic complexity: 2. Second operand has 11 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 30 states and 33 transitions. Complement of second has 11 states. [2024-02-09 14:18:01,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 3 stem states 3 non-accepting loop states 1 accepting loop states [2024-02-09 14:18:01,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 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) [2024-02-09 14:18:01,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2024-02-09 14:18:01,279 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 10 transitions. Stem has 12 letters. Loop has 4 letters. [2024-02-09 14:18:01,279 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-02-09 14:18:01,279 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 10 transitions. Stem has 16 letters. Loop has 4 letters. [2024-02-09 14:18:01,279 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-02-09 14:18:01,279 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 10 transitions. Stem has 12 letters. Loop has 8 letters. [2024-02-09 14:18:01,279 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-02-09 14:18:01,279 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 33 transitions. [2024-02-09 14:18:01,280 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-02-09 14:18:01,280 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 21 states and 23 transitions. [2024-02-09 14:18:01,280 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2024-02-09 14:18:01,280 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2024-02-09 14:18:01,280 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 23 transitions. [2024-02-09 14:18:01,280 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-02-09 14:18:01,280 INFO L218 hiAutomatonCegarLoop]: Abstraction has 21 states and 23 transitions. [2024-02-09 14:18:01,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 23 transitions. [2024-02-09 14:18:01,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2024-02-09 14:18:01,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 20 states have (on average 1.1) internal successors, (22), 19 states have internal predecessors, (22), 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) [2024-02-09 14:18:01,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2024-02-09 14:18:01,281 INFO L240 hiAutomatonCegarLoop]: Abstraction has 20 states and 22 transitions. [2024-02-09 14:18:01,281 INFO L428 stractBuchiCegarLoop]: Abstraction has 20 states and 22 transitions. [2024-02-09 14:18:01,281 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-02-09 14:18:01,281 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 22 transitions. [2024-02-09 14:18:01,282 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-02-09 14:18:01,282 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-02-09 14:18:01,282 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-02-09 14:18:01,282 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 3, 3, 3, 1, 1, 1] [2024-02-09 14:18:01,282 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-02-09 14:18:01,282 INFO L748 eck$LassoCheckResult]: Stem: 702#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 703#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~nondet2#1, main_~a~0#1, main_~b~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~b~0#1;havoc main_~x~0#1;main_~a~0#1 := 16;main_~b~0#1 := 30;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 699#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 695#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 696#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 707#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 714#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 697#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 698#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 706#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 700#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 701#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 711#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 713#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 712#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 710#L22 assume 0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1;main_#t~nondet2#1 := main_~a~0#1; 704#L22-4 [2024-02-09 14:18:01,282 INFO L750 eck$LassoCheckResult]: Loop: 704#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 705#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 709#L22 assume 0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1;main_#t~nondet2#1 := main_~a~0#1; 704#L22-4 [2024-02-09 14:18:01,282 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 14:18:01,282 INFO L85 PathProgramCache]: Analyzing trace with hash -1065427845, now seen corresponding path program 2 times [2024-02-09 14:18:01,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-09 14:18:01,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519213829] [2024-02-09 14:18:01,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-09 14:18:01,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-09 14:18:01,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-09 14:18:01,434 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-09 14:18:01,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-09 14:18:01,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519213829] [2024-02-09 14:18:01,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519213829] provided 0 perfect and 1 imperfect interpolant sequences [2024-02-09 14:18:01,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [83930890] [2024-02-09 14:18:01,435 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-02-09 14:18:01,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-02-09 14:18:01,435 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 14:18:01,449 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-02-09 14:18:01,481 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-02-09 14:18:01,482 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-02-09 14:18:01,482 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-02-09 14:18:01,482 INFO L262 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 17 conjunts are in the unsatisfiable core [2024-02-09 14:18:01,483 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-02-09 14:18:01,598 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-09 14:18:01,598 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-02-09 14:18:01,803 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-09 14:18:01,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [83930890] provided 0 perfect and 2 imperfect interpolant sequences [2024-02-09 14:18:01,803 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-02-09 14:18:01,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 12] total 29 [2024-02-09 14:18:01,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808866891] [2024-02-09 14:18:01,804 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-02-09 14:18:01,804 INFO L753 eck$LassoCheckResult]: stem already infeasible [2024-02-09 14:18:01,804 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 14:18:01,804 INFO L85 PathProgramCache]: Analyzing trace with hash 52249, now seen corresponding path program 3 times [2024-02-09 14:18:01,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-09 14:18:01,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953671000] [2024-02-09 14:18:01,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-09 14:18:01,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-09 14:18:01,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 14:18:01,807 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-09 14:18:01,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 14:18:01,808 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-09 14:18:01,836 INFO L210 LassoAnalysis]: Preferences: [2024-02-09 14:18:01,836 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2024-02-09 14:18:01,836 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-02-09 14:18:01,836 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2024-02-09 14:18:01,836 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2024-02-09 14:18:01,836 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 14:18:01,836 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2024-02-09 14:18:01,836 INFO L132 ssoRankerPreferences]: Path of dumped script: [2024-02-09 14:18:01,836 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-01.c_Iteration5_Loop [2024-02-09 14:18:01,836 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2024-02-09 14:18:01,836 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2024-02-09 14:18:01,837 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 14:18:01,838 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 14:18:01,906 INFO L294 LassoAnalysis]: Preprocessing complete. [2024-02-09 14:18:01,906 INFO L404 LassoAnalysis]: Checking for nontermination... [2024-02-09 14:18:01,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 14:18:01,906 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 14:18:01,907 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-02-09 14:18:01,912 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-02-09 14:18:01,912 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-02-09 14:18:01,921 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2024-02-09 14:18:01,921 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post1#1=0} Honda state: {ULTIMATE.start_main_#t~post1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-02-09 14:18:01,923 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2024-02-09 14:18:01,924 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2024-02-09 14:18:01,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 14:18:01,924 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 14:18:01,941 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-02-09 14:18:01,942 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2024-02-09 14:18:01,943 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-02-09 14:18:01,943 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-02-09 14:18:01,978 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2024-02-09 14:18:01,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 14:18:01,979 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 14:18:01,979 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-02-09 14:18:01,981 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-02-09 14:18:01,981 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-02-09 14:18:02,008 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2024-02-09 14:18:02,384 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-02-09 14:18:02,390 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2024-02-09 14:18:02,391 INFO L210 LassoAnalysis]: Preferences: [2024-02-09 14:18:02,391 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2024-02-09 14:18:02,391 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-02-09 14:18:02,391 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2024-02-09 14:18:02,391 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2024-02-09 14:18:02,391 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 14:18:02,391 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2024-02-09 14:18:02,391 INFO L132 ssoRankerPreferences]: Path of dumped script: [2024-02-09 14:18:02,391 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-01.c_Iteration5_Loop [2024-02-09 14:18:02,391 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2024-02-09 14:18:02,391 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2024-02-09 14:18:02,392 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 14:18:02,394 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 14:18:02,445 INFO L294 LassoAnalysis]: Preprocessing complete. [2024-02-09 14:18:02,445 INFO L490 LassoAnalysis]: Using template 'affine'. [2024-02-09 14:18:02,446 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 14:18:02,446 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 14:18:02,460 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-02-09 14:18:02,464 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 [2024-02-09 14:18:02,470 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-02-09 14:18:02,470 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-02-09 14:18:02,471 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-02-09 14:18:02,471 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-02-09 14:18:02,471 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-02-09 14:18:02,471 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-02-09 14:18:02,471 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-02-09 14:18:02,474 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2024-02-09 14:18:02,480 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-02-09 14:18:02,482 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2024-02-09 14:18:02,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 14:18:02,483 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 14:18:02,483 INFO L229 MonitoredProcess]: Starting monitored process 39 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) [2024-02-09 14:18:02,492 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 [2024-02-09 14:18:02,498 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-02-09 14:18:02,498 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-02-09 14:18:02,498 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-02-09 14:18:02,498 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-02-09 14:18:02,498 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-02-09 14:18:02,501 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2024-02-09 14:18:02,501 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-02-09 14:18:02,505 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2024-02-09 14:18:02,505 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-02-09 14:18:02,507 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2024-02-09 14:18:02,507 INFO L490 LassoAnalysis]: Using template '2-nested'. [2024-02-09 14:18:02,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 14:18:02,508 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 14:18:02,508 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-02-09 14:18:02,510 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2024-02-09 14:18:02,511 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 [2024-02-09 14:18:02,516 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-02-09 14:18:02,517 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-02-09 14:18:02,517 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-02-09 14:18:02,517 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-02-09 14:18:02,517 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2024-02-09 14:18:02,517 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2024-02-09 14:18:02,517 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-02-09 14:18:02,518 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-02-09 14:18:02,521 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2024-02-09 14:18:02,521 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 14:18:02,521 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 14:18:02,522 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-02-09 14:18:02,523 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2024-02-09 14:18:02,523 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 [2024-02-09 14:18:02,529 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-02-09 14:18:02,529 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-02-09 14:18:02,530 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-02-09 14:18:02,530 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-02-09 14:18:02,530 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2024-02-09 14:18:02,546 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-02-09 14:18:02,546 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-02-09 14:18:02,557 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-02-09 14:18:02,561 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2024-02-09 14:18:02,561 INFO L444 ModelExtractionUtils]: 5 out of 11 variables were initially zero. Simplification set additionally 2 variables to zero. [2024-02-09 14:18:02,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 14:18:02,561 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 14:18:02,563 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-02-09 14:18:02,564 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-02-09 14:18:02,564 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-02-09 14:18:02,564 INFO L513 LassoAnalysis]: Proved termination. [2024-02-09 14:18:02,564 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = -1*ULTIMATE.start_main_~a~0#1 f1 = -1*ULTIMATE.start_main_#t~nondet2#1 + 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2024-02-09 14:18:02,567 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2024-02-09 14:18:02,567 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2024-02-09 14:18:02,568 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-02-09 14:18:02,569 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: IfThenElseExpression (if -1 * ~a~0 > 0 then 1 else 0) could not be translated [2024-02-09 14:18:02,569 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: IfThenElseExpression (if -1 * ~a~0 > 0 then -1 * ~a~0 else ~x~0 + -1 * #t~nondet2) could not be translated [2024-02-09 14:18:02,577 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 14:18:02,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-09 14:18:02,589 INFO L262 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 2 conjunts are in the unsatisfiable core [2024-02-09 14:18:02,590 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-02-09 14:18:02,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-09 14:18:02,602 WARN L260 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 8 conjunts are in the unsatisfiable core [2024-02-09 14:18:02,602 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-02-09 14:18:02,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-09 14:18:02,667 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-02-09 14:18:02,667 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 22 transitions. cyclomatic complexity: 4 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-09 14:18:02,695 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states and 22 transitions. cyclomatic complexity: 4. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 30 states and 34 transitions. Complement of second has 7 states. [2024-02-09 14:18:02,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-02-09 14:18:02,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-09 14:18:02,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2024-02-09 14:18:02,696 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 16 letters. Loop has 3 letters. [2024-02-09 14:18:02,697 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-02-09 14:18:02,697 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 19 letters. Loop has 3 letters. [2024-02-09 14:18:02,697 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-02-09 14:18:02,697 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 16 letters. Loop has 6 letters. [2024-02-09 14:18:02,697 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-02-09 14:18:02,697 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 34 transitions. [2024-02-09 14:18:02,698 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-02-09 14:18:02,698 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 28 states and 32 transitions. [2024-02-09 14:18:02,698 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2024-02-09 14:18:02,698 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2024-02-09 14:18:02,698 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 32 transitions. [2024-02-09 14:18:02,698 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-02-09 14:18:02,698 INFO L218 hiAutomatonCegarLoop]: Abstraction has 28 states and 32 transitions. [2024-02-09 14:18:02,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 32 transitions. [2024-02-09 14:18:02,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 26. [2024-02-09 14:18:02,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 26 states have (on average 1.1538461538461537) internal successors, (30), 25 states have internal predecessors, (30), 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) [2024-02-09 14:18:02,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 30 transitions. [2024-02-09 14:18:02,700 INFO L240 hiAutomatonCegarLoop]: Abstraction has 26 states and 30 transitions. [2024-02-09 14:18:02,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-09 14:18:02,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-02-09 14:18:02,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=201, Invalid=669, Unknown=0, NotChecked=0, Total=870 [2024-02-09 14:18:02,700 INFO L87 Difference]: Start difference. First operand 26 states and 30 transitions. Second operand has 30 states, 29 states have (on average 1.5862068965517242) internal successors, (46), 30 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-09 14:18:02,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-02-09 14:18:02,854 INFO L93 Difference]: Finished difference Result 43 states and 47 transitions. [2024-02-09 14:18:02,854 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43 states and 47 transitions. [2024-02-09 14:18:02,854 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-02-09 14:18:02,854 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43 states to 43 states and 47 transitions. [2024-02-09 14:18:02,855 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2024-02-09 14:18:02,855 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2024-02-09 14:18:02,855 INFO L73 IsDeterministic]: Start isDeterministic. Operand 43 states and 47 transitions. [2024-02-09 14:18:02,855 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-02-09 14:18:02,855 INFO L218 hiAutomatonCegarLoop]: Abstraction has 43 states and 47 transitions. [2024-02-09 14:18:02,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states and 47 transitions. [2024-02-09 14:18:02,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 42. [2024-02-09 14:18:02,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 42 states have (on average 1.0952380952380953) internal successors, (46), 41 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-09 14:18:02,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions. [2024-02-09 14:18:02,856 INFO L240 hiAutomatonCegarLoop]: Abstraction has 42 states and 46 transitions. [2024-02-09 14:18:02,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-02-09 14:18:02,857 INFO L428 stractBuchiCegarLoop]: Abstraction has 42 states and 46 transitions. [2024-02-09 14:18:02,857 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-02-09 14:18:02,857 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 42 states and 46 transitions. [2024-02-09 14:18:02,857 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-02-09 14:18:02,857 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-02-09 14:18:02,857 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-02-09 14:18:02,858 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [9, 8, 8, 7, 1, 1, 1] [2024-02-09 14:18:02,858 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-02-09 14:18:02,858 INFO L748 eck$LassoCheckResult]: Stem: 1035#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 1036#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~nondet2#1, main_~a~0#1, main_~b~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~b~0#1;havoc main_~x~0#1;main_~a~0#1 := 16;main_~b~0#1 := 30;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 1032#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1028#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1029#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 1040#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1068#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1030#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1031#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 1039#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1033#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1034#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1065#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 1064#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1063#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1062#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1061#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 1060#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1059#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1058#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1057#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 1056#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1055#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1054#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1053#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 1052#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1051#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1050#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1047#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 1049#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1048#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1046#L22 assume 0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1;main_#t~nondet2#1 := main_~a~0#1; 1045#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1043#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1069#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1066#L22-2 [2024-02-09 14:18:02,858 INFO L750 eck$LassoCheckResult]: Loop: 1066#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 1037#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1038#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1067#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1066#L22-2 [2024-02-09 14:18:02,858 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 14:18:02,859 INFO L85 PathProgramCache]: Analyzing trace with hash -213061435, now seen corresponding path program 3 times [2024-02-09 14:18:02,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-09 14:18:02,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651076988] [2024-02-09 14:18:02,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-09 14:18:02,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-09 14:18:02,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-09 14:18:03,032 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2024-02-09 14:18:03,267 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 23 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-09 14:18:03,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-09 14:18:03,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651076988] [2024-02-09 14:18:03,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651076988] provided 0 perfect and 1 imperfect interpolant sequences [2024-02-09 14:18:03,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2067359976] [2024-02-09 14:18:03,268 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-02-09 14:18:03,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-02-09 14:18:03,268 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 14:18:03,269 INFO L229 MonitoredProcess]: Starting monitored process 43 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-02-09 14:18:03,292 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2024-02-09 14:18:03,303 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2024-02-09 14:18:03,303 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-02-09 14:18:03,304 INFO L262 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 33 conjunts are in the unsatisfiable core [2024-02-09 14:18:03,305 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-02-09 14:18:03,625 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 23 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-09 14:18:03,625 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-02-09 14:18:04,274 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 23 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-09 14:18:04,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2067359976] provided 0 perfect and 2 imperfect interpolant sequences [2024-02-09 14:18:04,274 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-02-09 14:18:04,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18, 25] total 58 [2024-02-09 14:18:04,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854021348] [2024-02-09 14:18:04,274 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-02-09 14:18:04,274 INFO L753 eck$LassoCheckResult]: stem already infeasible [2024-02-09 14:18:04,275 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 14:18:04,275 INFO L85 PathProgramCache]: Analyzing trace with hash 1571592, now seen corresponding path program 2 times [2024-02-09 14:18:04,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-09 14:18:04,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782775360] [2024-02-09 14:18:04,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-09 14:18:04,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-09 14:18:04,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 14:18:04,277 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-09 14:18:04,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 14:18:04,279 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-09 14:18:04,400 INFO L210 LassoAnalysis]: Preferences: [2024-02-09 14:18:04,400 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2024-02-09 14:18:04,400 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-02-09 14:18:04,400 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2024-02-09 14:18:04,400 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2024-02-09 14:18:04,400 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 14:18:04,400 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2024-02-09 14:18:04,400 INFO L132 ssoRankerPreferences]: Path of dumped script: [2024-02-09 14:18:04,400 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-01.c_Iteration6_Loop [2024-02-09 14:18:04,401 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2024-02-09 14:18:04,401 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2024-02-09 14:18:04,401 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 14:18:04,436 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 14:18:04,483 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2024-02-09 14:18:04,769 INFO L294 LassoAnalysis]: Preprocessing complete. [2024-02-09 14:18:04,769 INFO L404 LassoAnalysis]: Checking for nontermination... [2024-02-09 14:18:04,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 14:18:04,769 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 14:18:04,770 INFO L229 MonitoredProcess]: Starting monitored process 44 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-02-09 14:18:04,772 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2024-02-09 14:18:04,772 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-02-09 14:18:04,772 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-02-09 14:18:04,788 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2024-02-09 14:18:04,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 14:18:04,790 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 14:18:04,790 INFO L229 MonitoredProcess]: Starting monitored process 45 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-02-09 14:18:04,791 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2024-02-09 14:18:04,792 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-02-09 14:18:04,792 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-02-09 14:18:04,809 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2024-02-09 14:18:04,809 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~a~0#1=1, ULTIMATE.start_main_#t~nondet2#1=-1, ULTIMATE.start_main_~b~0#1=-1} Honda state: {ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~a~0#1=1, ULTIMATE.start_main_#t~nondet2#1=-1, ULTIMATE.start_main_~b~0#1=-1} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~a~0#1=1, ULTIMATE.start_main_#t~nondet2#1=0, ULTIMATE.start_main_~b~0#1=0}, {ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~a~0#1=0, ULTIMATE.start_main_#t~nondet2#1=0, ULTIMATE.start_main_~b~0#1=0}, {ULTIMATE.start_main_~x~0#1=1, ULTIMATE.start_main_~a~0#1=0, ULTIMATE.start_main_#t~nondet2#1=0, ULTIMATE.start_main_~b~0#1=0}] Lambdas: [1, 0, 1] Nus: [1, 0] [2024-02-09 14:18:04,812 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2024-02-09 14:18:04,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 14:18:04,812 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 14:18:04,813 INFO L229 MonitoredProcess]: Starting monitored process 46 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-02-09 14:18:04,814 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2024-02-09 14:18:04,815 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-02-09 14:18:04,815 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-02-09 14:18:04,822 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2024-02-09 14:18:04,822 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post1#1=0} Honda state: {ULTIMATE.start_main_#t~post1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-02-09 14:18:04,826 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2024-02-09 14:18:04,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-09 14:18:04,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2024-02-09 14:18:04,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=640, Invalid=2666, Unknown=0, NotChecked=0, Total=3306 [2024-02-09 14:18:04,828 INFO L87 Difference]: Start difference. First operand 42 states and 46 transitions. cyclomatic complexity: 7 Second operand has 58 states, 58 states have (on average 1.6724137931034482) internal successors, (97), 58 states have internal predecessors, (97), 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) [2024-02-09 14:18:05,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-02-09 14:18:05,210 INFO L93 Difference]: Finished difference Result 67 states and 71 transitions. [2024-02-09 14:18:05,210 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 67 states and 71 transitions. [2024-02-09 14:18:05,210 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-02-09 14:18:05,211 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 67 states to 67 states and 71 transitions. [2024-02-09 14:18:05,211 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2024-02-09 14:18:05,211 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2024-02-09 14:18:05,211 INFO L73 IsDeterministic]: Start isDeterministic. Operand 67 states and 71 transitions. [2024-02-09 14:18:05,211 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-02-09 14:18:05,211 INFO L218 hiAutomatonCegarLoop]: Abstraction has 67 states and 71 transitions. [2024-02-09 14:18:05,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states and 71 transitions. [2024-02-09 14:18:05,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 66. [2024-02-09 14:18:05,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 66 states have (on average 1.0606060606060606) internal successors, (70), 65 states have internal predecessors, (70), 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) [2024-02-09 14:18:05,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 70 transitions. [2024-02-09 14:18:05,213 INFO L240 hiAutomatonCegarLoop]: Abstraction has 66 states and 70 transitions. [2024-02-09 14:18:05,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-02-09 14:18:05,214 INFO L428 stractBuchiCegarLoop]: Abstraction has 66 states and 70 transitions. [2024-02-09 14:18:05,214 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2024-02-09 14:18:05,214 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 66 states and 70 transitions. [2024-02-09 14:18:05,214 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-02-09 14:18:05,214 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-02-09 14:18:05,214 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-02-09 14:18:05,215 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [15, 14, 14, 13, 1, 1, 1] [2024-02-09 14:18:05,215 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-02-09 14:18:05,216 INFO L748 eck$LassoCheckResult]: Stem: 1434#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 1435#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~nondet2#1, main_~a~0#1, main_~b~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~b~0#1;havoc main_~x~0#1;main_~a~0#1 := 16;main_~b~0#1 := 30;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 1432#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1428#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1429#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 1440#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1433#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1430#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1431#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 1438#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1439#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1492#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1489#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 1488#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1487#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1486#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1485#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 1484#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1483#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1482#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1481#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 1480#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1479#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1478#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1477#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 1476#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1475#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1474#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1473#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 1472#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1471#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1470#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1469#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 1468#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1467#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1466#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1465#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 1464#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1463#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1462#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1461#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 1460#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1459#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1458#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1457#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 1456#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1455#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1454#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1453#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 1452#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1451#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1450#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1447#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 1449#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1448#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1446#L22 assume 0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1;main_#t~nondet2#1 := main_~a~0#1; 1445#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1443#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1493#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1490#L22-2 [2024-02-09 14:18:05,216 INFO L750 eck$LassoCheckResult]: Loop: 1490#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 1436#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1437#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1491#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1490#L22-2 [2024-02-09 14:18:05,216 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 14:18:05,216 INFO L85 PathProgramCache]: Analyzing trace with hash -1273996581, now seen corresponding path program 4 times [2024-02-09 14:18:05,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-09 14:18:05,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239688957] [2024-02-09 14:18:05,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-09 14:18:05,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-09 14:18:05,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 14:18:05,259 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-09 14:18:05,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 14:18:05,282 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-09 14:18:05,283 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 14:18:05,283 INFO L85 PathProgramCache]: Analyzing trace with hash 1571592, now seen corresponding path program 3 times [2024-02-09 14:18:05,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-09 14:18:05,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713192991] [2024-02-09 14:18:05,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-09 14:18:05,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-09 14:18:05,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 14:18:05,286 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-09 14:18:05,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 14:18:05,288 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-09 14:18:05,290 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 14:18:05,290 INFO L85 PathProgramCache]: Analyzing trace with hash 745232610, now seen corresponding path program 5 times [2024-02-09 14:18:05,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-09 14:18:05,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889218134] [2024-02-09 14:18:05,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-09 14:18:05,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-09 14:18:05,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 14:18:05,317 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-09 14:18:05,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 14:18:05,346 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-09 14:18:05,495 INFO L210 LassoAnalysis]: Preferences: [2024-02-09 14:18:05,495 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2024-02-09 14:18:05,495 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-02-09 14:18:05,495 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2024-02-09 14:18:05,495 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2024-02-09 14:18:05,495 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 14:18:05,496 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2024-02-09 14:18:05,496 INFO L132 ssoRankerPreferences]: Path of dumped script: [2024-02-09 14:18:05,496 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-01.c_Iteration7_Loop [2024-02-09 14:18:05,496 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2024-02-09 14:18:05,496 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2024-02-09 14:18:05,496 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 14:18:05,530 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 14:18:05,573 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2024-02-09 14:18:05,872 INFO L294 LassoAnalysis]: Preprocessing complete. [2024-02-09 14:18:05,872 INFO L404 LassoAnalysis]: Checking for nontermination... [2024-02-09 14:18:05,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 14:18:05,872 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 14:18:05,874 INFO L229 MonitoredProcess]: Starting monitored process 47 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-02-09 14:18:05,875 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2024-02-09 14:18:05,876 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-02-09 14:18:05,876 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-02-09 14:18:05,894 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0 [2024-02-09 14:18:05,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 14:18:05,895 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 14:18:05,900 INFO L229 MonitoredProcess]: Starting monitored process 48 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-02-09 14:18:05,900 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2024-02-09 14:18:05,901 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-02-09 14:18:05,901 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-02-09 14:18:05,930 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2024-02-09 14:18:05,930 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~a~0#1=1, ULTIMATE.start_main_#t~nondet2#1=-1, ULTIMATE.start_main_~b~0#1=-1} Honda state: {ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~a~0#1=1, ULTIMATE.start_main_#t~nondet2#1=-1, ULTIMATE.start_main_~b~0#1=-1} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0#1=1, ULTIMATE.start_main_~a~0#1=0, ULTIMATE.start_main_#t~nondet2#1=0, ULTIMATE.start_main_~b~0#1=0}, {ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~a~0#1=1, ULTIMATE.start_main_#t~nondet2#1=0, ULTIMATE.start_main_~b~0#1=0}, {ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~a~0#1=0, ULTIMATE.start_main_#t~nondet2#1=0, ULTIMATE.start_main_~b~0#1=0}] Lambdas: [1, 1, 0] Nus: [0, 1] [2024-02-09 14:18:05,933 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2024-02-09 14:18:05,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 14:18:05,933 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 14:18:05,934 INFO L229 MonitoredProcess]: Starting monitored process 49 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-02-09 14:18:05,936 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2024-02-09 14:18:05,937 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-02-09 14:18:05,937 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-02-09 14:18:05,943 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2024-02-09 14:18:05,944 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post1#1=0} Honda state: {ULTIMATE.start_main_#t~post1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-02-09 14:18:05,946 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Ended with exit code 0 [2024-02-09 14:18:07,434 INFO L210 LassoAnalysis]: Preferences: [2024-02-09 14:18:07,434 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2024-02-09 14:18:07,434 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-02-09 14:18:07,434 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2024-02-09 14:18:07,434 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2024-02-09 14:18:07,434 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 14:18:07,434 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2024-02-09 14:18:07,434 INFO L132 ssoRankerPreferences]: Path of dumped script: [2024-02-09 14:18:07,434 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-01.c_Iteration7_Lasso [2024-02-09 14:18:07,435 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2024-02-09 14:18:07,435 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2024-02-09 14:18:07,436 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 14:18:07,438 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 14:18:07,439 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 14:18:07,441 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 14:18:07,479 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 14:18:07,496 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 14:18:07,592 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2024-02-09 14:18:07,980 INFO L294 LassoAnalysis]: Preprocessing complete. [2024-02-09 14:18:07,980 INFO L404 LassoAnalysis]: Checking for nontermination... [2024-02-09 14:18:07,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 14:18:07,980 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 14:18:07,981 INFO L229 MonitoredProcess]: Starting monitored process 50 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) [2024-02-09 14:18:07,983 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2024-02-09 14:18:07,986 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-02-09 14:18:07,986 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-02-09 14:18:08,008 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2024-02-09 14:18:08,008 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post1#1=0} Honda state: {ULTIMATE.start_main_#t~post1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-02-09 14:18:08,011 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2024-02-09 14:18:08,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 14:18:08,011 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 14:18:08,012 INFO L229 MonitoredProcess]: Starting monitored process 51 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-02-09 14:18:08,014 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-02-09 14:18:08,023 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2024-02-09 14:18:08,031 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2024-02-09 14:18:08,031 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {} Honda state: {} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-02-09 14:18:08,033 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Forceful destruction successful, exit code 0 [2024-02-09 14:18:08,033 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 14:18:08,034 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 14:18:08,034 INFO L229 MonitoredProcess]: Starting monitored process 52 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-02-09 14:18:08,037 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-02-09 14:18:08,037 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-02-09 14:18:08,046 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2024-02-09 14:18:08,055 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2024-02-09 14:18:08,055 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res#1=0} Honda state: {ULTIMATE.start_main_#res#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-02-09 14:18:08,057 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0 [2024-02-09 14:18:08,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 14:18:08,057 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 14:18:08,058 INFO L229 MonitoredProcess]: Starting monitored process 53 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-02-09 14:18:08,061 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2024-02-09 14:18:08,061 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-02-09 14:18:08,061 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-02-09 14:18:08,071 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Ended with exit code 0 [2024-02-09 14:18:08,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 14:18:08,071 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 14:18:08,072 INFO L229 MonitoredProcess]: Starting monitored process 54 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-02-09 14:18:08,075 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-02-09 14:18:08,075 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-02-09 14:18:08,093 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2024-02-09 14:18:08,100 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-02-09 14:18:08,103 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Forceful destruction successful, exit code 0 [2024-02-09 14:18:08,104 INFO L210 LassoAnalysis]: Preferences: [2024-02-09 14:18:08,104 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2024-02-09 14:18:08,104 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-02-09 14:18:08,104 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2024-02-09 14:18:08,104 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2024-02-09 14:18:08,104 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 14:18:08,104 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2024-02-09 14:18:08,104 INFO L132 ssoRankerPreferences]: Path of dumped script: [2024-02-09 14:18:08,104 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-01.c_Iteration7_Lasso [2024-02-09 14:18:08,104 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2024-02-09 14:18:08,104 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2024-02-09 14:18:08,105 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 14:18:08,108 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 14:18:08,110 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 14:18:08,111 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 14:18:08,139 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 14:18:08,179 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 14:18:08,251 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2024-02-09 14:18:08,615 INFO L294 LassoAnalysis]: Preprocessing complete. [2024-02-09 14:18:08,615 INFO L490 LassoAnalysis]: Using template 'affine'. [2024-02-09 14:18:08,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 14:18:08,615 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 14:18:08,616 INFO L229 MonitoredProcess]: Starting monitored process 55 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) [2024-02-09 14:18:08,618 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2024-02-09 14:18:08,619 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 [2024-02-09 14:18:08,625 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-02-09 14:18:08,625 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-02-09 14:18:08,625 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-02-09 14:18:08,625 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-02-09 14:18:08,626 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-02-09 14:18:08,626 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-02-09 14:18:08,636 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-02-09 14:18:08,639 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Forceful destruction successful, exit code 0 [2024-02-09 14:18:08,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 14:18:08,639 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 14:18:08,640 INFO L229 MonitoredProcess]: Starting monitored process 56 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) [2024-02-09 14:18:08,643 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 [2024-02-09 14:18:08,648 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-02-09 14:18:08,648 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-02-09 14:18:08,648 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-02-09 14:18:08,649 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-02-09 14:18:08,649 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-02-09 14:18:08,649 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-02-09 14:18:08,649 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-02-09 14:18:08,652 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2024-02-09 14:18:08,660 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-02-09 14:18:08,663 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Forceful destruction successful, exit code 0 [2024-02-09 14:18:08,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 14:18:08,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 14:18:08,663 INFO L229 MonitoredProcess]: Starting monitored process 57 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-02-09 14:18:08,666 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 [2024-02-09 14:18:08,672 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-02-09 14:18:08,672 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-02-09 14:18:08,672 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-02-09 14:18:08,672 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-02-09 14:18:08,672 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-02-09 14:18:08,672 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2024-02-09 14:18:08,673 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-02-09 14:18:08,673 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-02-09 14:18:08,674 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-02-09 14:18:08,676 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Ended with exit code 0 [2024-02-09 14:18:08,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 14:18:08,676 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 14:18:08,677 INFO L229 MonitoredProcess]: Starting monitored process 58 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-02-09 14:18:08,679 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2024-02-09 14:18:08,679 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 [2024-02-09 14:18:08,685 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-02-09 14:18:08,685 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-02-09 14:18:08,685 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-02-09 14:18:08,685 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-02-09 14:18:08,687 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-02-09 14:18:08,687 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-02-09 14:18:08,690 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-02-09 14:18:08,692 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Forceful destruction successful, exit code 0 [2024-02-09 14:18:08,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 14:18:08,692 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 14:18:08,693 INFO L229 MonitoredProcess]: Starting monitored process 59 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-02-09 14:18:08,694 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2024-02-09 14:18:08,695 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 [2024-02-09 14:18:08,700 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-02-09 14:18:08,700 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-02-09 14:18:08,700 INFO L204 nArgumentSynthesizer]: 7 loop disjuncts [2024-02-09 14:18:08,700 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-02-09 14:18:08,794 INFO L401 nArgumentSynthesizer]: We have 126 Motzkin's Theorem applications. [2024-02-09 14:18:08,795 INFO L402 nArgumentSynthesizer]: A total of 14 supporting invariants were added. [2024-02-09 14:18:09,702 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-02-09 14:18:10,255 INFO L443 ModelExtractionUtils]: Simplification made 26 calls to the SMT solver. [2024-02-09 14:18:10,255 INFO L444 ModelExtractionUtils]: 47 out of 76 variables were initially zero. Simplification set additionally 23 variables to zero. [2024-02-09 14:18:10,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 14:18:10,256 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 14:18:10,258 INFO L229 MonitoredProcess]: Starting monitored process 60 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-02-09 14:18:10,259 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2024-02-09 14:18:10,259 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-02-09 14:18:10,299 INFO L438 nArgumentSynthesizer]: Removed 13 redundant supporting invariants from a total of 14. [2024-02-09 14:18:10,299 INFO L513 LassoAnalysis]: Proved termination. [2024-02-09 14:18:10,300 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~a~0#1) = -2*ULTIMATE.start_main_~a~0#1 + 4294967295 Supporting invariants [-2*ULTIMATE.start_main_~a~0#1 + 2*ULTIMATE.start_main_~b~0#1 + 3 >= 0] [2024-02-09 14:18:10,311 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Forceful destruction successful, exit code 0 [2024-02-09 14:18:10,318 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2024-02-09 14:18:10,347 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 14:18:10,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-09 14:18:10,395 INFO L262 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 5 conjunts are in the unsatisfiable core [2024-02-09 14:18:10,397 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-02-09 14:18:10,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-09 14:18:10,500 WARN L260 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 13 conjunts are in the unsatisfiable core [2024-02-09 14:18:10,500 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-02-09 14:18:10,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-09 14:18:10,614 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.4 stem predicates 4 loop predicates [2024-02-09 14:18:10,615 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 66 states and 70 transitions. cyclomatic complexity: 7 Second operand has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-09 14:18:10,694 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 66 states and 70 transitions. cyclomatic complexity: 7. Second operand has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 105 states and 110 transitions. Complement of second has 11 states. [2024-02-09 14:18:10,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 3 stem states 3 non-accepting loop states 1 accepting loop states [2024-02-09 14:18:10,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-09 14:18:10,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2024-02-09 14:18:10,695 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 10 transitions. Stem has 59 letters. Loop has 4 letters. [2024-02-09 14:18:10,696 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-02-09 14:18:10,696 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-02-09 14:18:10,710 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 14:18:10,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-09 14:18:10,738 INFO L262 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 5 conjunts are in the unsatisfiable core [2024-02-09 14:18:10,744 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-02-09 14:18:10,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-09 14:18:10,813 WARN L260 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 13 conjunts are in the unsatisfiable core [2024-02-09 14:18:10,813 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-02-09 14:18:10,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-09 14:18:10,912 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.4 stem predicates 4 loop predicates [2024-02-09 14:18:10,912 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 66 states and 70 transitions. cyclomatic complexity: 7 Second operand has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-09 14:18:11,107 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 66 states and 70 transitions. cyclomatic complexity: 7. Second operand has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 118 states and 125 transitions. Complement of second has 14 states. [2024-02-09 14:18:11,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 9 states 3 stem states 5 non-accepting loop states 1 accepting loop states [2024-02-09 14:18:11,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-09 14:18:11,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 11 transitions. [2024-02-09 14:18:11,109 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 11 transitions. Stem has 59 letters. Loop has 4 letters. [2024-02-09 14:18:11,109 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-02-09 14:18:11,110 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 11 transitions. Stem has 63 letters. Loop has 4 letters. [2024-02-09 14:18:11,110 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-02-09 14:18:11,110 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 11 transitions. Stem has 59 letters. Loop has 8 letters. [2024-02-09 14:18:11,110 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-02-09 14:18:11,110 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 118 states and 125 transitions. [2024-02-09 14:18:11,111 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-02-09 14:18:11,112 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 118 states to 73 states and 78 transitions. [2024-02-09 14:18:11,112 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2024-02-09 14:18:11,112 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2024-02-09 14:18:11,112 INFO L73 IsDeterministic]: Start isDeterministic. Operand 73 states and 78 transitions. [2024-02-09 14:18:11,112 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-02-09 14:18:11,112 INFO L218 hiAutomatonCegarLoop]: Abstraction has 73 states and 78 transitions. [2024-02-09 14:18:11,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states and 78 transitions. [2024-02-09 14:18:11,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 68. [2024-02-09 14:18:11,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 68 states have (on average 1.0588235294117647) internal successors, (72), 67 states have internal predecessors, (72), 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) [2024-02-09 14:18:11,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 72 transitions. [2024-02-09 14:18:11,114 INFO L240 hiAutomatonCegarLoop]: Abstraction has 68 states and 72 transitions. [2024-02-09 14:18:11,114 INFO L428 stractBuchiCegarLoop]: Abstraction has 68 states and 72 transitions. [2024-02-09 14:18:11,114 INFO L335 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2024-02-09 14:18:11,114 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 68 states and 72 transitions. [2024-02-09 14:18:11,114 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-02-09 14:18:11,115 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-02-09 14:18:11,115 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-02-09 14:18:11,115 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [15, 14, 14, 14, 1, 1, 1] [2024-02-09 14:18:11,115 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-02-09 14:18:11,115 INFO L748 eck$LassoCheckResult]: Stem: 2175#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 2176#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~nondet2#1, main_~a~0#1, main_~b~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~b~0#1;havoc main_~x~0#1;main_~a~0#1 := 16;main_~b~0#1 := 30;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 2172#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2173#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 2179#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 2178#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 2174#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2170#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 2171#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 2180#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 2235#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2234#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 2233#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 2232#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 2231#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2230#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 2229#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 2228#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 2227#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2226#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 2225#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 2224#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 2223#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2222#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 2221#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 2220#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 2219#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2218#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 2217#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 2216#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 2215#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2214#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 2213#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 2212#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 2211#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2210#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 2209#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 2208#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 2207#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2206#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 2205#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 2204#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 2203#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2202#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 2201#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 2200#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 2199#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2198#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 2197#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 2196#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 2195#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2193#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 2192#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 2190#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 2191#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2194#L22 assume 0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1;main_#t~nondet2#1 := main_~a~0#1; 2187#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 2188#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2183#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 2181#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 2169#L22-4 [2024-02-09 14:18:11,116 INFO L750 eck$LassoCheckResult]: Loop: 2169#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 2177#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2168#L22 assume 0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1;main_#t~nondet2#1 := main_~a~0#1; 2169#L22-4 [2024-02-09 14:18:11,116 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 14:18:11,116 INFO L85 PathProgramCache]: Analyzing trace with hash -839188326, now seen corresponding path program 6 times [2024-02-09 14:18:11,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-09 14:18:11,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602302574] [2024-02-09 14:18:11,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-09 14:18:11,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-09 14:18:11,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 14:18:11,129 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-09 14:18:11,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 14:18:11,139 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-09 14:18:11,140 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 14:18:11,140 INFO L85 PathProgramCache]: Analyzing trace with hash 52249, now seen corresponding path program 4 times [2024-02-09 14:18:11,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-09 14:18:11,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289655523] [2024-02-09 14:18:11,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-09 14:18:11,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-09 14:18:11,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 14:18:11,142 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-09 14:18:11,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 14:18:11,143 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-09 14:18:11,143 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 14:18:11,143 INFO L85 PathProgramCache]: Analyzing trace with hash 745232608, now seen corresponding path program 7 times [2024-02-09 14:18:11,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-09 14:18:11,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260295472] [2024-02-09 14:18:11,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-09 14:18:11,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-09 14:18:11,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 14:18:11,155 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-09 14:18:11,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 14:18:11,166 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-09 14:18:11,193 INFO L210 LassoAnalysis]: Preferences: [2024-02-09 14:18:11,193 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2024-02-09 14:18:11,193 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-02-09 14:18:11,193 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2024-02-09 14:18:11,193 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2024-02-09 14:18:11,193 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 14:18:11,193 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2024-02-09 14:18:11,193 INFO L132 ssoRankerPreferences]: Path of dumped script: [2024-02-09 14:18:11,193 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-01.c_Iteration8_Loop [2024-02-09 14:18:11,193 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2024-02-09 14:18:11,193 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2024-02-09 14:18:11,194 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 14:18:11,203 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 14:18:11,259 INFO L294 LassoAnalysis]: Preprocessing complete. [2024-02-09 14:18:11,259 INFO L404 LassoAnalysis]: Checking for nontermination... [2024-02-09 14:18:11,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 14:18:11,259 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 14:18:11,260 INFO L229 MonitoredProcess]: Starting monitored process 61 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-02-09 14:18:11,266 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2024-02-09 14:18:11,267 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-02-09 14:18:11,267 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-02-09 14:18:11,290 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Ended with exit code 0 [2024-02-09 14:18:11,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 14:18:11,291 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 14:18:11,291 INFO L229 MonitoredProcess]: Starting monitored process 62 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-02-09 14:18:11,293 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2024-02-09 14:18:11,294 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-02-09 14:18:11,294 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-02-09 14:18:11,704 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-02-09 14:18:11,709 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Forceful destruction successful, exit code 0 [2024-02-09 14:18:11,709 INFO L210 LassoAnalysis]: Preferences: [2024-02-09 14:18:11,709 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2024-02-09 14:18:11,709 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-02-09 14:18:11,709 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2024-02-09 14:18:11,709 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2024-02-09 14:18:11,709 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 14:18:11,709 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2024-02-09 14:18:11,709 INFO L132 ssoRankerPreferences]: Path of dumped script: [2024-02-09 14:18:11,709 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-01.c_Iteration8_Loop [2024-02-09 14:18:11,709 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2024-02-09 14:18:11,709 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2024-02-09 14:18:11,710 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 14:18:11,711 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 14:18:11,766 INFO L294 LassoAnalysis]: Preprocessing complete. [2024-02-09 14:18:11,766 INFO L490 LassoAnalysis]: Using template 'affine'. [2024-02-09 14:18:11,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 14:18:11,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 14:18:11,767 INFO L229 MonitoredProcess]: Starting monitored process 63 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-02-09 14:18:11,769 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2024-02-09 14:18:11,770 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 [2024-02-09 14:18:11,776 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-02-09 14:18:11,776 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-02-09 14:18:11,776 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-02-09 14:18:11,777 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-02-09 14:18:11,777 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-02-09 14:18:11,777 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-02-09 14:18:11,777 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-02-09 14:18:11,778 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-02-09 14:18:11,780 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Forceful destruction successful, exit code 0 [2024-02-09 14:18:11,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 14:18:11,781 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 14:18:11,781 INFO L229 MonitoredProcess]: Starting monitored process 64 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-02-09 14:18:11,784 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process [2024-02-09 14:18:11,785 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 [2024-02-09 14:18:11,791 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-02-09 14:18:11,791 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-02-09 14:18:11,791 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-02-09 14:18:11,791 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-02-09 14:18:11,791 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-02-09 14:18:11,793 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2024-02-09 14:18:11,793 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-02-09 14:18:11,796 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-02-09 14:18:11,799 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Forceful destruction successful, exit code 0 [2024-02-09 14:18:11,799 INFO L490 LassoAnalysis]: Using template '2-nested'. [2024-02-09 14:18:11,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 14:18:11,799 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 14:18:11,802 INFO L229 MonitoredProcess]: Starting monitored process 65 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-02-09 14:18:11,820 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Forceful destruction successful, exit code 0 [2024-02-09 14:18:11,821 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Waiting until timeout for monitored process [2024-02-09 14:18:11,821 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 [2024-02-09 14:18:11,827 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-02-09 14:18:11,827 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-02-09 14:18:11,827 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-02-09 14:18:11,827 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-02-09 14:18:11,827 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2024-02-09 14:18:11,828 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2024-02-09 14:18:11,828 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-02-09 14:18:11,829 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-02-09 14:18:11,831 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Forceful destruction successful, exit code 0 [2024-02-09 14:18:11,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 14:18:11,831 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 14:18:11,832 INFO L229 MonitoredProcess]: Starting monitored process 66 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) [2024-02-09 14:18:11,834 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Waiting until timeout for monitored process [2024-02-09 14:18:11,835 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 [2024-02-09 14:18:11,841 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-02-09 14:18:11,842 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-02-09 14:18:11,842 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-02-09 14:18:11,842 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-02-09 14:18:11,842 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2024-02-09 14:18:11,845 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-02-09 14:18:11,845 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-02-09 14:18:11,850 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-02-09 14:18:11,854 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2024-02-09 14:18:11,854 INFO L444 ModelExtractionUtils]: 6 out of 11 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-02-09 14:18:11,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 14:18:11,854 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 14:18:11,855 INFO L229 MonitoredProcess]: Starting monitored process 67 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-02-09 14:18:11,860 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Waiting until timeout for monitored process [2024-02-09 14:18:11,860 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-02-09 14:18:11,860 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-02-09 14:18:11,860 INFO L513 LassoAnalysis]: Proved termination. [2024-02-09 14:18:11,860 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = -1*ULTIMATE.start_main_~a~0#1 f1 = -1*ULTIMATE.start_main_#t~nondet2#1 + 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2024-02-09 14:18:11,863 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Forceful destruction successful, exit code 0 [2024-02-09 14:18:11,864 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-02-09 14:18:11,865 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: IfThenElseExpression (if -1 * ~a~0 > 0 then 1 else 0) could not be translated [2024-02-09 14:18:11,865 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: IfThenElseExpression (if -1 * ~a~0 > 0 then -1 * ~a~0 else ~x~0 + -1 * #t~nondet2) could not be translated [2024-02-09 14:18:11,873 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 14:18:11,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-09 14:18:11,903 INFO L262 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 2 conjunts are in the unsatisfiable core [2024-02-09 14:18:11,904 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-02-09 14:18:11,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-09 14:18:11,983 WARN L260 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 8 conjunts are in the unsatisfiable core [2024-02-09 14:18:11,983 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-02-09 14:18:12,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-09 14:18:12,072 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-02-09 14:18:12,072 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 68 states and 72 transitions. cyclomatic complexity: 8 Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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) [2024-02-09 14:18:12,091 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 68 states and 72 transitions. cyclomatic complexity: 8. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 72 states and 76 transitions. Complement of second has 7 states. [2024-02-09 14:18:12,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-02-09 14:18:12,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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) [2024-02-09 14:18:12,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2024-02-09 14:18:12,092 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 60 letters. Loop has 3 letters. [2024-02-09 14:18:12,092 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-02-09 14:18:12,092 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-02-09 14:18:12,101 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 14:18:12,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-09 14:18:12,128 INFO L262 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 2 conjunts are in the unsatisfiable core [2024-02-09 14:18:12,128 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-02-09 14:18:12,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-09 14:18:12,176 WARN L260 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 8 conjunts are in the unsatisfiable core [2024-02-09 14:18:12,176 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-02-09 14:18:12,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-09 14:18:12,248 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2024-02-09 14:18:12,248 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 68 states and 72 transitions. cyclomatic complexity: 8 Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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) [2024-02-09 14:18:12,259 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 68 states and 72 transitions. cyclomatic complexity: 8. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 72 states and 76 transitions. Complement of second has 7 states. [2024-02-09 14:18:12,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-02-09 14:18:12,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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) [2024-02-09 14:18:12,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2024-02-09 14:18:12,260 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 60 letters. Loop has 3 letters. [2024-02-09 14:18:12,260 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-02-09 14:18:12,260 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-02-09 14:18:12,269 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 14:18:12,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-09 14:18:12,294 INFO L262 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 2 conjunts are in the unsatisfiable core [2024-02-09 14:18:12,295 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-02-09 14:18:12,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-09 14:18:12,345 WARN L260 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 8 conjunts are in the unsatisfiable core [2024-02-09 14:18:12,345 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-02-09 14:18:12,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-09 14:18:12,421 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 3 loop predicates [2024-02-09 14:18:12,422 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 68 states and 72 transitions. cyclomatic complexity: 8 Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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) [2024-02-09 14:18:12,438 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 68 states and 72 transitions. cyclomatic complexity: 8. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 131 states and 139 transitions. Complement of second has 8 states. [2024-02-09 14:18:12,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-02-09 14:18:12,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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) [2024-02-09 14:18:12,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 13 transitions. [2024-02-09 14:18:12,439 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 60 letters. Loop has 3 letters. [2024-02-09 14:18:12,440 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-02-09 14:18:12,440 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 63 letters. Loop has 3 letters. [2024-02-09 14:18:12,441 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-02-09 14:18:12,441 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 60 letters. Loop has 6 letters. [2024-02-09 14:18:12,442 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-02-09 14:18:12,442 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 131 states and 139 transitions. [2024-02-09 14:18:12,443 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-02-09 14:18:12,443 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 131 states to 0 states and 0 transitions. [2024-02-09 14:18:12,443 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-02-09 14:18:12,443 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-02-09 14:18:12,444 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-02-09 14:18:12,444 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-02-09 14:18:12,444 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-02-09 14:18:12,444 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-02-09 14:18:12,444 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-02-09 14:18:12,444 INFO L335 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2024-02-09 14:18:12,444 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-02-09 14:18:12,444 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-02-09 14:18:12,444 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-02-09 14:18:12,449 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 09.02 02:18:12 BoogieIcfgContainer [2024-02-09 14:18:12,449 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-02-09 14:18:12,450 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-02-09 14:18:12,450 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-02-09 14:18:12,450 INFO L274 PluginConnector]: Witness Printer initialized [2024-02-09 14:18:12,450 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 02:17:52" (3/4) ... [2024-02-09 14:18:12,451 INFO L140 WitnessPrinter]: No result that supports witness generation found [2024-02-09 14:18:12,452 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-02-09 14:18:12,452 INFO L158 Benchmark]: Toolchain (without parser) took 20770.46ms. Allocated memory was 184.5MB in the beginning and 323.0MB in the end (delta: 138.4MB). Free memory was 115.9MB in the beginning and 172.4MB in the end (delta: -56.5MB). Peak memory consumption was 83.4MB. Max. memory is 16.1GB. [2024-02-09 14:18:12,453 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 104.9MB. Free memory is still 68.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-02-09 14:18:12,453 INFO L158 Benchmark]: CACSL2BoogieTranslator took 152.92ms. Allocated memory is still 184.5MB. Free memory was 115.7MB in the beginning and 106.1MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-02-09 14:18:12,453 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.93ms. Allocated memory is still 184.5MB. Free memory was 106.0MB in the beginning and 104.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-02-09 14:18:12,453 INFO L158 Benchmark]: Boogie Preprocessor took 22.20ms. Allocated memory is still 184.5MB. Free memory was 104.7MB in the beginning and 103.2MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-02-09 14:18:12,453 INFO L158 Benchmark]: RCFGBuilder took 343.04ms. Allocated memory is still 184.5MB. Free memory was 103.1MB in the beginning and 151.7MB in the end (delta: -48.5MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. [2024-02-09 14:18:12,454 INFO L158 Benchmark]: BuchiAutomizer took 20215.95ms. Allocated memory was 184.5MB in the beginning and 323.0MB in the end (delta: 138.4MB). Free memory was 151.7MB in the beginning and 173.4MB in the end (delta: -21.8MB). Peak memory consumption was 119.7MB. Max. memory is 16.1GB. [2024-02-09 14:18:12,454 INFO L158 Benchmark]: Witness Printer took 2.42ms. Allocated memory is still 323.0MB. Free memory is still 172.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-02-09 14:18:12,455 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 104.9MB. Free memory is still 68.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 152.92ms. Allocated memory is still 184.5MB. Free memory was 115.7MB in the beginning and 106.1MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.93ms. Allocated memory is still 184.5MB. Free memory was 106.0MB in the beginning and 104.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.20ms. Allocated memory is still 184.5MB. Free memory was 104.7MB in the beginning and 103.2MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 343.04ms. Allocated memory is still 184.5MB. Free memory was 103.1MB in the beginning and 151.7MB in the end (delta: -48.5MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. * BuchiAutomizer took 20215.95ms. Allocated memory was 184.5MB in the beginning and 323.0MB in the end (delta: 138.4MB). Free memory was 151.7MB in the beginning and 173.4MB in the end (delta: -21.8MB). Peak memory consumption was 119.7MB. Max. memory is 16.1GB. * Witness Printer took 2.42ms. Allocated memory is still 323.0MB. Free memory is still 172.4MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IfThenElseExpression (if -1 * ~a~0 > 0 then 1 else 0) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IfThenElseExpression (if -1 * ~a~0 > 0 then -1 * ~a~0 else ~x~0) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IfThenElseExpression (if -1 * ~a~0 > 0 then 1 else 0) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IfThenElseExpression (if -1 * ~a~0 > 0 then -1 * ~a~0 else ~x~0 + -1 * #t~nondet2) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IfThenElseExpression (if -1 * ~a~0 > 0 then 1 else 0) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IfThenElseExpression (if -1 * ~a~0 > 0 then -1 * ~a~0 else ~x~0 + -1 * #t~nondet2) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IfThenElseExpression (if -1 * ~a~0 > 0 then 1 else 0) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IfThenElseExpression (if -1 * ~a~0 > 0 then -1 * ~a~0 else ~x~0 + -1 * #t~nondet2) could not be translated * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 12 terminating modules (5 trivial, 6 deterministic, 1 nondeterministic). One deterministic module has 2-nested ranking function null, null and consists of 7 locations. One deterministic module has 2-nested ranking function null, null and consists of 4 locations. One deterministic module has affine ranking function ((-2 * a) + 1) and consists of 4 locations. One deterministic module has affine ranking function ((2 * x) + 1) and consists of 7 locations. One deterministic module has 2-nested ranking function null, null and consists of 4 locations. One deterministic module has affine ranking function (4294967295 + (-2 * a)) and consists of 9 locations. One nondeterministic module has 2-nested ranking function null, null and consists of 4 locations. 5 modules have a trivial ranking function, the largest among these consists of 58 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 20.1s and 9 iterations. TraceHistogramMax:15. Analysis of lassos took 16.8s. Construction of modules took 0.4s. Büchi inclusion checks took 2.7s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 9. Automata minimization 0.0s AutomataMinimizationTime, 11 MinimizatonAttempts, 30 StatesRemovedByMinimization, 10 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 [5, 1, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 246 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 239 mSDsluCounter, 116 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 50 mSDsCounter, 213 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1044 IncrementalHoareTripleChecker+Invalid, 1257 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 213 mSolverCounterUnsat, 66 mSDtfsCounter, 1044 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT3 SILN1 SILU0 SILI0 SILT1 lasso2 LassoPreprocessingBenchmarks: Lassos: inital57 mio100 ax100 hnf100 lsp99 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq168 hnf94 smp100 dnf901 smp57 tf101 neg100 sie106 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 2282ms VariablesStem: 4 VariablesLoop: 7 DisjunctsStem: 1 DisjunctsLoop: 7 SupportingInvariants: 14 MotzkinApplications: 126 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 10 LassoNonterminationAnalysisSatUnbounded: 3 LassoNonterminationAnalysisUnsat: 7 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 2.2s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-02-09 14:18:12,462 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Forceful destruction successful, exit code 0 [2024-02-09 14:18:12,666 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Forceful destruction successful, exit code 0 [2024-02-09 14:18:12,870 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2024-02-09 14:18:13,070 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-02-09 14:18:13,271 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE