./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-bwb/or-02.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-bwb/or-02.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 7598e0946f5292d261b929b388079f7fb794bee1a1e7afaa45add76236cc5a38 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-09 06:47:06,886 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-09 06:47:06,930 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2025-03-09 06:47:06,935 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-09 06:47:06,935 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-09 06:47:06,935 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2025-03-09 06:47:06,953 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-09 06:47:06,955 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-09 06:47:06,955 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-09 06:47:06,956 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-09 06:47:06,956 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-09 06:47:06,957 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-09 06:47:06,957 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-09 06:47:06,957 INFO L153 SettingsManager]: * Use SBE=true [2025-03-09 06:47:06,957 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-03-09 06:47:06,957 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-03-09 06:47:06,957 INFO L153 SettingsManager]: * Use old map elimination=false [2025-03-09 06:47:06,958 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-03-09 06:47:06,958 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-03-09 06:47:06,958 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-03-09 06:47:06,958 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-09 06:47:06,958 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-03-09 06:47:06,958 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-09 06:47:06,958 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-09 06:47:06,958 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-03-09 06:47:06,958 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-03-09 06:47:06,958 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-03-09 06:47:06,958 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-09 06:47:06,958 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-09 06:47:06,958 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-03-09 06:47:06,959 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-09 06:47:06,959 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-09 06:47:06,959 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-09 06:47:06,959 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-09 06:47:06,959 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-09 06:47:06,959 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-09 06:47:06,959 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-03-09 06:47:06,960 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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 -> 7598e0946f5292d261b929b388079f7fb794bee1a1e7afaa45add76236cc5a38 [2025-03-09 06:47:07,187 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-09 06:47:07,197 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-09 06:47:07,199 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-09 06:47:07,200 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-09 06:47:07,200 INFO L274 PluginConnector]: CDTParser initialized [2025-03-09 06:47:07,202 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-bwb/or-02.c [2025-03-09 06:47:08,408 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94ad48274/bba264e466b94a3ebc24344adf1627b5/FLAGcfe85efc9 [2025-03-09 06:47:08,608 INFO L384 CDTParser]: Found 1 translation units. [2025-03-09 06:47:08,608 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-bwb/or-02.c [2025-03-09 06:47:08,613 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94ad48274/bba264e466b94a3ebc24344adf1627b5/FLAGcfe85efc9 [2025-03-09 06:47:08,976 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94ad48274/bba264e466b94a3ebc24344adf1627b5 [2025-03-09 06:47:08,978 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-09 06:47:08,979 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-09 06:47:08,980 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-09 06:47:08,980 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-09 06:47:08,983 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-09 06:47:08,983 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 06:47:08" (1/1) ... [2025-03-09 06:47:08,984 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c2f9394 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:47:08, skipping insertion in model container [2025-03-09 06:47:08,984 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 06:47:08" (1/1) ... [2025-03-09 06:47:08,993 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-09 06:47:09,079 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 06:47:09,082 INFO L200 MainTranslator]: Completed pre-run [2025-03-09 06:47:09,089 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 06:47:09,098 INFO L204 MainTranslator]: Completed translation [2025-03-09 06:47:09,099 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:47:09 WrapperNode [2025-03-09 06:47:09,099 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-09 06:47:09,099 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-09 06:47:09,099 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-09 06:47:09,100 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-09 06:47:09,104 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:47:09" (1/1) ... [2025-03-09 06:47:09,106 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:47:09" (1/1) ... [2025-03-09 06:47:09,115 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2025-03-09 06:47:09,116 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-09 06:47:09,116 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-09 06:47:09,116 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-09 06:47:09,116 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-09 06:47:09,121 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:47:09" (1/1) ... [2025-03-09 06:47:09,122 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:47:09" (1/1) ... [2025-03-09 06:47:09,123 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:47:09" (1/1) ... [2025-03-09 06:47:09,125 INFO L175 MemorySlicer]: No memory access in input program. [2025-03-09 06:47:09,126 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:47:09" (1/1) ... [2025-03-09 06:47:09,126 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:47:09" (1/1) ... [2025-03-09 06:47:09,127 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:47:09" (1/1) ... [2025-03-09 06:47:09,128 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:47:09" (1/1) ... [2025-03-09 06:47:09,128 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:47:09" (1/1) ... [2025-03-09 06:47:09,131 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:47:09" (1/1) ... [2025-03-09 06:47:09,131 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-09 06:47:09,132 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-09 06:47:09,132 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-09 06:47:09,132 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-09 06:47:09,133 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:47:09" (1/1) ... [2025-03-09 06:47:09,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:47:09,148 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:47:09,165 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) [2025-03-09 06:47:09,170 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 [2025-03-09 06:47:09,190 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-09 06:47:09,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-09 06:47:09,224 INFO L256 CfgBuilder]: Building ICFG [2025-03-09 06:47:09,225 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-09 06:47:09,310 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live. [2025-03-09 06:47:09,313 INFO L307 CfgBuilder]: Performing block encoding [2025-03-09 06:47:09,327 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-09 06:47:09,327 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-09 06:47:09,327 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 06:47:09 BoogieIcfgContainer [2025-03-09 06:47:09,327 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-09 06:47:09,329 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-03-09 06:47:09,329 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-03-09 06:47:09,333 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-03-09 06:47:09,333 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-09 06:47:09,334 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 09.03 06:47:08" (1/3) ... [2025-03-09 06:47:09,335 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@256c72fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.03 06:47:09, skipping insertion in model container [2025-03-09 06:47:09,335 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-09 06:47:09,336 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:47:09" (2/3) ... [2025-03-09 06:47:09,336 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@256c72fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.03 06:47:09, skipping insertion in model container [2025-03-09 06:47:09,336 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-09 06:47:09,336 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 06:47:09" (3/3) ... [2025-03-09 06:47:09,337 INFO L363 chiAutomizerObserver]: Analyzing ICFG or-02.c [2025-03-09 06:47:09,383 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-03-09 06:47:09,383 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-03-09 06:47:09,383 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-03-09 06:47:09,383 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-03-09 06:47:09,384 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-03-09 06:47:09,384 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-03-09 06:47:09,384 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-03-09 06:47:09,384 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-03-09 06:47:09,388 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:47:09,397 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2025-03-09 06:47:09,398 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-09 06:47:09,398 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-09 06:47:09,401 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-03-09 06:47:09,401 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-03-09 06:47:09,402 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-03-09 06:47:09,402 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:47:09,402 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2025-03-09 06:47:09,402 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-09 06:47:09,402 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-09 06:47:09,402 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-03-09 06:47:09,402 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-03-09 06:47:09,407 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~bitwise1#1, main_~b~0#1, main_~x~0#1;havoc main_~b~0#1;havoc main_~x~0#1;main_~b~0#1 := 30;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;" [2025-03-09 06:47:09,407 INFO L754 eck$LassoCheckResult]: Loop: "assume main_~x~0#1 > 0;" "assume 0 == main_~b~0#1 || main_~b~0#1 == 1 + main_~b~0#1;main_#t~bitwise1#1 := 1 + main_~b~0#1;" "main_~b~0#1 := main_#t~bitwise1#1;havoc main_#t~bitwise1#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1;" [2025-03-09 06:47:09,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:47:09,411 INFO L85 PathProgramCache]: Analyzing trace with hash 1344, now seen corresponding path program 1 times [2025-03-09 06:47:09,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:47:09,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500366806] [2025-03-09 06:47:09,416 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:47:09,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:47:09,454 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-03-09 06:47:09,458 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-03-09 06:47:09,458 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:47:09,458 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 06:47:09,459 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 06:47:09,460 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-03-09 06:47:09,460 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-03-09 06:47:09,460 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:47:09,460 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 06:47:09,468 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 06:47:09,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:47:09,470 INFO L85 PathProgramCache]: Analyzing trace with hash 39528, now seen corresponding path program 1 times [2025-03-09 06:47:09,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:47:09,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127393691] [2025-03-09 06:47:09,470 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:47:09,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:47:09,472 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-09 06:47:09,476 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-09 06:47:09,476 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:47:09,476 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 06:47:09,476 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 06:47:09,478 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-09 06:47:09,480 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-09 06:47:09,480 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:47:09,480 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 06:47:09,482 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 06:47:09,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:47:09,485 INFO L85 PathProgramCache]: Analyzing trace with hash 40048841, now seen corresponding path program 1 times [2025-03-09 06:47:09,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:47:09,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951737314] [2025-03-09 06:47:09,486 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:47:09,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:47:09,491 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-09 06:47:09,494 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-09 06:47:09,494 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:47:09,494 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:47:09,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:47:09,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:47:09,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951737314] [2025-03-09 06:47:09,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951737314] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:47:09,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:47:09,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 06:47:09,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340190382] [2025-03-09 06:47:09,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:47:09,587 INFO L204 LassoAnalysis]: Preferences: [2025-03-09 06:47:09,587 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-09 06:47:09,587 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-09 06:47:09,587 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-09 06:47:09,587 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-03-09 06:47:09,587 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:47:09,587 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-09 06:47:09,587 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-09 06:47:09,587 INFO L132 ssoRankerPreferences]: Filename of dumped script: or-02.c_Iteration1_Loop [2025-03-09 06:47:09,588 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-09 06:47:09,588 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-09 06:47:09,595 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-09 06:47:09,600 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-09 06:47:09,607 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-09 06:47:09,649 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-09 06:47:09,649 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-03-09 06:47:09,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:47:09,650 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:47:09,653 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) [2025-03-09 06:47:09,654 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 [2025-03-09 06:47:09,655 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-09 06:47:09,655 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-09 06:47:09,669 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-09 06:47:09,669 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~bitwise1#1=0} Honda state: {ULTIMATE.start_main_#t~bitwise1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-03-09 06:47:09,675 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2025-03-09 06:47:09,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:47:09,675 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:47:09,677 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) [2025-03-09 06:47:09,677 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 [2025-03-09 06:47:09,679 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-09 06:47:09,679 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-09 06:47:09,700 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 [2025-03-09 06:47:09,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:47:09,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:47:09,702 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) [2025-03-09 06:47:09,704 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 [2025-03-09 06:47:09,710 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-03-09 06:47:09,710 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-09 06:47:09,727 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-03-09 06:47:09,733 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2025-03-09 06:47:09,733 INFO L204 LassoAnalysis]: Preferences: [2025-03-09 06:47:09,733 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-09 06:47:09,733 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-09 06:47:09,733 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-09 06:47:09,733 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-03-09 06:47:09,733 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:47:09,733 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-09 06:47:09,733 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-09 06:47:09,733 INFO L132 ssoRankerPreferences]: Filename of dumped script: or-02.c_Iteration1_Loop [2025-03-09 06:47:09,733 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-09 06:47:09,733 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-09 06:47:09,734 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-09 06:47:09,737 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-09 06:47:09,742 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-09 06:47:09,796 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-09 06:47:09,798 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-03-09 06:47:09,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:47:09,799 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:47:09,801 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) [2025-03-09 06:47:09,804 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 [2025-03-09 06:47:09,806 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 [2025-03-09 06:47:09,824 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-09 06:47:09,824 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-09 06:47:09,825 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-09 06:47:09,825 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-09 06:47:09,825 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-09 06:47:09,828 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-09 06:47:09,828 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-09 06:47:09,829 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-09 06:47:09,835 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2025-03-09 06:47:09,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:47:09,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:47:09,837 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) [2025-03-09 06:47:09,839 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 [2025-03-09 06:47:09,840 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 [2025-03-09 06:47:09,851 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-09 06:47:09,851 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-09 06:47:09,851 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-09 06:47:09,851 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-09 06:47:09,852 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-09 06:47:09,854 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-09 06:47:09,854 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-09 06:47:09,857 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-03-09 06:47:09,860 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-03-09 06:47:09,863 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-03-09 06:47:09,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:47:09,865 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:47:09,867 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) [2025-03-09 06:47:09,869 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 [2025-03-09 06:47:09,870 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-03-09 06:47:09,870 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-03-09 06:47:09,874 INFO L474 LassoAnalysis]: Proved termination. [2025-03-09 06:47:09,875 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~b~0#1) = -2*ULTIMATE.start_main_~b~0#1 + 1 Supporting invariants [] [2025-03-09 06:47:09,882 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2025-03-09 06:47:09,888 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-03-09 06:47:09,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:47:09,927 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-03-09 06:47:09,928 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-03-09 06:47:09,928 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:47:09,928 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:47:09,929 INFO L256 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-09 06:47:09,930 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:47:09,941 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-09 06:47:09,943 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-09 06:47:09,943 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:47:09,943 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:47:09,944 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-09 06:47:09,944 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:47:09,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:47:10,002 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2025-03-09 06:47:10,004 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 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) [2025-03-09 06:47:10,054 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 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 22 states and 30 transitions. Complement of second has 7 states. [2025-03-09 06:47:10,055 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 [2025-03-09 06:47:10,058 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) [2025-03-09 06:47:10,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2025-03-09 06:47:10,066 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 2 letters. Loop has 3 letters. [2025-03-09 06:47:10,067 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-09 06:47:10,068 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 5 letters. Loop has 3 letters. [2025-03-09 06:47:10,068 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-09 06:47:10,068 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 2 letters. Loop has 6 letters. [2025-03-09 06:47:10,068 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-09 06:47:10,069 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 30 transitions. [2025-03-09 06:47:10,071 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2025-03-09 06:47:10,073 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 14 states and 19 transitions. [2025-03-09 06:47:10,074 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2025-03-09 06:47:10,075 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2025-03-09 06:47:10,075 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 19 transitions. [2025-03-09 06:47:10,076 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-03-09 06:47:10,076 INFO L218 hiAutomatonCegarLoop]: Abstraction has 14 states and 19 transitions. [2025-03-09 06:47:10,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 19 transitions. [2025-03-09 06:47:10,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2025-03-09 06:47:10,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.3333333333333333) 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) [2025-03-09 06:47:10,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 16 transitions. [2025-03-09 06:47:10,095 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12 states and 16 transitions. [2025-03-09 06:47:10,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:47:10,096 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 06:47:10,097 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 06:47:10,097 INFO L87 Difference]: Start difference. First operand 12 states and 16 transitions. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 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) [2025-03-09 06:47:10,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 06:47:10,114 INFO L93 Difference]: Finished difference Result 12 states and 14 transitions. [2025-03-09 06:47:10,114 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 14 transitions. [2025-03-09 06:47:10,115 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2025-03-09 06:47:10,115 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 11 states and 13 transitions. [2025-03-09 06:47:10,116 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2025-03-09 06:47:10,116 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2025-03-09 06:47:10,116 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 13 transitions. [2025-03-09 06:47:10,116 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-03-09 06:47:10,116 INFO L218 hiAutomatonCegarLoop]: Abstraction has 11 states and 13 transitions. [2025-03-09 06:47:10,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 13 transitions. [2025-03-09 06:47:10,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2025-03-09 06:47:10,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.2) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:47:10,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2025-03-09 06:47:10,119 INFO L240 hiAutomatonCegarLoop]: Abstraction has 10 states and 12 transitions. [2025-03-09 06:47:10,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 06:47:10,120 INFO L432 stractBuchiCegarLoop]: Abstraction has 10 states and 12 transitions. [2025-03-09 06:47:10,121 INFO L338 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-03-09 06:47:10,121 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 12 transitions. [2025-03-09 06:47:10,121 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2025-03-09 06:47:10,122 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-09 06:47:10,122 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-09 06:47:10,122 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2025-03-09 06:47:10,122 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2025-03-09 06:47:10,122 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~bitwise1#1, main_~b~0#1, main_~x~0#1;havoc main_~b~0#1;havoc main_~x~0#1;main_~b~0#1 := 30;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;" "assume main_~x~0#1 > 0;" "assume !(0 == main_~b~0#1 || main_~b~0#1 == 1 + main_~b~0#1);" "assume !(0 == 1 + main_~b~0#1);" [2025-03-09 06:47:10,123 INFO L754 eck$LassoCheckResult]: Loop: "havoc main_#t~bitwise1#1;assume (((((main_~b~0#1 < 0 && 1 + main_~b~0#1 >= 0) || main_#t~bitwise1#1 >= 1 + main_~b~0#1) && ((main_~b~0#1 >= 0 && 1 + main_~b~0#1 < 0) || main_#t~bitwise1#1 >= main_~b~0#1)) && ((main_~b~0#1 < 0 || 1 + main_~b~0#1 < 0) || main_#t~bitwise1#1 <= main_~b~0#1 + (1 + main_~b~0#1))) && ((main_~b~0#1 >= 0 && 1 + main_~b~0#1 >= 0) || main_#t~bitwise1#1 < 0)) && main_#t~bitwise1#1 <= 2147483647;" "main_~b~0#1 := main_#t~bitwise1#1;havoc main_#t~bitwise1#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1;" "assume main_~x~0#1 > 0;" "assume !(0 == main_~b~0#1 || main_~b~0#1 == 1 + main_~b~0#1);" "assume !(0 == 1 + main_~b~0#1);" [2025-03-09 06:47:10,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:47:10,123 INFO L85 PathProgramCache]: Analyzing trace with hash 40049001, now seen corresponding path program 1 times [2025-03-09 06:47:10,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:47:10,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435593418] [2025-03-09 06:47:10,124 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:47:10,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:47:10,126 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-09 06:47:10,130 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-09 06:47:10,130 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:47:10,130 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 06:47:10,130 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 06:47:10,131 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-09 06:47:10,134 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-09 06:47:10,135 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:47:10,135 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 06:47:10,136 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 06:47:10,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:47:10,138 INFO L85 PathProgramCache]: Analyzing trace with hash 41657715, now seen corresponding path program 1 times [2025-03-09 06:47:10,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:47:10,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107664765] [2025-03-09 06:47:10,138 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:47:10,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:47:10,143 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-09 06:47:10,155 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-09 06:47:10,156 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:47:10,156 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 06:47:10,156 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 06:47:10,157 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-09 06:47:10,164 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-09 06:47:10,166 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:47:10,167 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 06:47:10,168 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 06:47:10,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:47:10,170 INFO L85 PathProgramCache]: Analyzing trace with hash 1620585739, now seen corresponding path program 1 times [2025-03-09 06:47:10,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:47:10,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854939276] [2025-03-09 06:47:10,170 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:47:10,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:47:10,175 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-09 06:47:10,180 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-09 06:47:10,180 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:47:10,181 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 06:47:10,181 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 06:47:10,183 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-09 06:47:10,190 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-09 06:47:10,190 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:47:10,190 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 06:47:10,192 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 06:47:10,314 INFO L204 LassoAnalysis]: Preferences: [2025-03-09 06:47:10,314 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-09 06:47:10,314 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-09 06:47:10,314 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-09 06:47:10,314 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-03-09 06:47:10,314 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:47:10,314 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-09 06:47:10,314 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-09 06:47:10,314 INFO L132 ssoRankerPreferences]: Filename of dumped script: or-02.c_Iteration2_Loop [2025-03-09 06:47:10,314 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-09 06:47:10,314 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-09 06:47:10,316 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-09 06:47:10,339 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-09 06:47:10,469 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-09 06:47:10,470 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-03-09 06:47:10,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:47:10,471 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:47:10,471 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 [2025-03-09 06:47:10,476 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) [2025-03-09 06:47:10,477 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 [2025-03-09 06:47:10,478 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-09 06:47:10,478 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-09 06:47:10,496 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2025-03-09 06:47:10,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:47:10,496 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:47:10,498 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) [2025-03-09 06:47:10,499 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 [2025-03-09 06:47:10,500 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-03-09 06:47:10,500 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-09 06:47:10,519 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-03-09 06:47:10,523 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 [2025-03-09 06:47:10,524 INFO L204 LassoAnalysis]: Preferences: [2025-03-09 06:47:10,524 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-09 06:47:10,524 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-09 06:47:10,524 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-09 06:47:10,524 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-03-09 06:47:10,524 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:47:10,524 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-09 06:47:10,524 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-09 06:47:10,524 INFO L132 ssoRankerPreferences]: Filename of dumped script: or-02.c_Iteration2_Loop [2025-03-09 06:47:10,524 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-09 06:47:10,524 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-09 06:47:10,525 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-09 06:47:10,544 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-09 06:47:10,649 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-09 06:47:10,650 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-03-09 06:47:10,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:47:10,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:47:10,654 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) [2025-03-09 06:47:10,655 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 [2025-03-09 06:47:10,656 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 [2025-03-09 06:47:10,667 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-09 06:47:10,667 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-09 06:47:10,667 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-09 06:47:10,667 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2025-03-09 06:47:10,667 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-09 06:47:10,669 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2025-03-09 06:47:10,669 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-09 06:47:10,672 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-03-09 06:47:10,676 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-03-09 06:47:10,676 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-03-09 06:47:10,677 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:47:10,677 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:47:10,679 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-09 06:47:10,680 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2025-03-09 06:47:10,681 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-03-09 06:47:10,681 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-03-09 06:47:10,682 INFO L474 LassoAnalysis]: Proved termination. [2025-03-09 06:47:10,682 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~b~0#1) = -2*ULTIMATE.start_main_~b~0#1 + 4294967293 Supporting invariants [] [2025-03-09 06:47:10,688 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2025-03-09 06:47:10,689 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-03-09 06:47:10,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:47:10,708 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-09 06:47:10,710 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-09 06:47:10,710 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:47:10,710 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:47:10,710 INFO L256 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-09 06:47:10,710 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:47:10,722 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-09 06:47:10,725 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-09 06:47:10,725 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:47:10,726 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:47:10,726 WARN L254 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-09 06:47:10,727 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:47:10,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:47:10,936 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 [2025-03-09 06:47:10,936 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 12 transitions. cyclomatic complexity: 3 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) [2025-03-09 06:47:10,972 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 12 transitions. cyclomatic complexity: 3. 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 21 states and 27 transitions. Complement of second has 7 states. [2025-03-09 06:47:10,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-03-09 06:47:10,974 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) [2025-03-09 06:47:10,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 19 transitions. [2025-03-09 06:47:10,974 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 5 letters. Loop has 5 letters. [2025-03-09 06:47:10,975 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-09 06:47:10,975 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 10 letters. Loop has 5 letters. [2025-03-09 06:47:10,975 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-09 06:47:10,975 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 5 letters. Loop has 10 letters. [2025-03-09 06:47:10,975 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-09 06:47:10,975 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 27 transitions. [2025-03-09 06:47:10,976 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2025-03-09 06:47:10,976 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 16 states and 19 transitions. [2025-03-09 06:47:10,976 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2025-03-09 06:47:10,976 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2025-03-09 06:47:10,976 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 19 transitions. [2025-03-09 06:47:10,976 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-03-09 06:47:10,976 INFO L218 hiAutomatonCegarLoop]: Abstraction has 16 states and 19 transitions. [2025-03-09 06:47:10,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 19 transitions. [2025-03-09 06:47:10,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 15. [2025-03-09 06:47:10,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 1.2) internal successors, (18), 14 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) [2025-03-09 06:47:10,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 18 transitions. [2025-03-09 06:47:10,977 INFO L240 hiAutomatonCegarLoop]: Abstraction has 15 states and 18 transitions. [2025-03-09 06:47:10,977 INFO L432 stractBuchiCegarLoop]: Abstraction has 15 states and 18 transitions. [2025-03-09 06:47:10,978 INFO L338 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-03-09 06:47:10,978 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 18 transitions. [2025-03-09 06:47:10,978 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2025-03-09 06:47:10,978 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-09 06:47:10,978 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-09 06:47:10,978 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2025-03-09 06:47:10,978 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2025-03-09 06:47:10,979 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~bitwise1#1, main_~b~0#1, main_~x~0#1;havoc main_~b~0#1;havoc main_~x~0#1;main_~b~0#1 := 30;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;" "assume main_~x~0#1 > 0;" "assume !(0 == main_~b~0#1 || main_~b~0#1 == 1 + main_~b~0#1);" "assume !(0 == 1 + main_~b~0#1);" "havoc main_#t~bitwise1#1;assume (((((main_~b~0#1 < 0 && 1 + main_~b~0#1 >= 0) || main_#t~bitwise1#1 >= 1 + main_~b~0#1) && ((main_~b~0#1 >= 0 && 1 + main_~b~0#1 < 0) || main_#t~bitwise1#1 >= main_~b~0#1)) && ((main_~b~0#1 < 0 || 1 + main_~b~0#1 < 0) || main_#t~bitwise1#1 <= main_~b~0#1 + (1 + main_~b~0#1))) && ((main_~b~0#1 >= 0 && 1 + main_~b~0#1 >= 0) || main_#t~bitwise1#1 < 0)) && main_#t~bitwise1#1 <= 2147483647;" [2025-03-09 06:47:10,979 INFO L754 eck$LassoCheckResult]: Loop: "main_~b~0#1 := main_#t~bitwise1#1;havoc main_#t~bitwise1#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1;" "assume main_~x~0#1 > 0;" "assume !(0 == main_~b~0#1 || main_~b~0#1 == 1 + main_~b~0#1);" "assume 0 == 1 + main_~b~0#1;main_#t~bitwise1#1 := main_~b~0#1;" [2025-03-09 06:47:10,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:47:10,979 INFO L85 PathProgramCache]: Analyzing trace with hash 1241519045, now seen corresponding path program 1 times [2025-03-09 06:47:10,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:47:10,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993262626] [2025-03-09 06:47:10,979 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:47:10,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:47:10,982 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-09 06:47:10,984 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-09 06:47:10,984 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:47:10,984 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 06:47:10,984 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 06:47:10,985 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-09 06:47:10,987 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-09 06:47:10,987 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:47:10,987 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 06:47:10,988 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 06:47:10,988 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:47:10,988 INFO L85 PathProgramCache]: Analyzing trace with hash 1022788, now seen corresponding path program 1 times [2025-03-09 06:47:10,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:47:10,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713130109] [2025-03-09 06:47:10,989 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:47:10,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:47:10,990 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-09 06:47:10,991 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-09 06:47:10,991 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:47:10,991 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 06:47:10,991 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 06:47:10,992 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-09 06:47:10,993 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-09 06:47:10,993 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:47:10,993 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 06:47:10,994 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 06:47:10,994 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:47:10,994 INFO L85 PathProgramCache]: Analyzing trace with hash 1620585736, now seen corresponding path program 1 times [2025-03-09 06:47:10,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:47:10,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413023971] [2025-03-09 06:47:10,994 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:47:10,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:47:10,996 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-09 06:47:11,000 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-09 06:47:11,003 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:47:11,004 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:47:11,079 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:47:11,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:47:11,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413023971] [2025-03-09 06:47:11,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413023971] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:47:11,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:47:11,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-09 06:47:11,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968198406] [2025-03-09 06:47:11,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:47:11,115 INFO L204 LassoAnalysis]: Preferences: [2025-03-09 06:47:11,115 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-09 06:47:11,115 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-09 06:47:11,116 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-09 06:47:11,116 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-03-09 06:47:11,116 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:47:11,116 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-09 06:47:11,116 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-09 06:47:11,116 INFO L132 ssoRankerPreferences]: Filename of dumped script: or-02.c_Iteration3_Loop [2025-03-09 06:47:11,116 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-09 06:47:11,116 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-09 06:47:11,116 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-09 06:47:11,123 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-09 06:47:11,125 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-09 06:47:11,156 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-09 06:47:11,157 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-03-09 06:47:11,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:47:11,157 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:47:11,160 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) [2025-03-09 06:47:11,163 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 [2025-03-09 06:47:11,164 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-09 06:47:11,164 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-09 06:47:11,181 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 [2025-03-09 06:47:11,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:47:11,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:47:11,184 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) [2025-03-09 06:47:11,184 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 [2025-03-09 06:47:11,186 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-03-09 06:47:11,186 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-09 06:47:11,230 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-09 06:47:11,230 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=0} Honda state: {ULTIMATE.start_main_~x~0#1=0} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0#1=1}, {ULTIMATE.start_main_~x~0#1=0}, {ULTIMATE.start_main_~x~0#1=0}] Lambdas: [1, 8, 0] Nus: [1, 1] [2025-03-09 06:47:11,236 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 [2025-03-09 06:47:11,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:47:11,237 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:47:11,239 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) [2025-03-09 06:47:11,240 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 [2025-03-09 06:47:11,242 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-09 06:47:11,242 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-09 06:47:11,253 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-09 06:47:11,253 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~b~0#1=0} Honda state: {ULTIMATE.start_main_~b~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-03-09 06:47:11,259 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2025-03-09 06:47:11,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:47:11,260 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:47:11,262 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) [2025-03-09 06:47:11,263 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 [2025-03-09 06:47:11,264 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-09 06:47:11,264 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-09 06:47:11,282 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-09 06:47:11,282 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~bitwise1#1=-1} Honda state: {ULTIMATE.start_main_#t~bitwise1#1=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-03-09 06:47:11,288 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 [2025-03-09 06:47:11,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:47:11,289 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-09 06:47:11,289 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-09 06:47:11,289 INFO L87 Difference]: Start difference. First operand 15 states and 18 transitions. cyclomatic complexity: 5 Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 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) [2025-03-09 06:47:11,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 06:47:11,306 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2025-03-09 06:47:11,306 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 16 transitions. [2025-03-09 06:47:11,306 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-03-09 06:47:11,306 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 0 states and 0 transitions. [2025-03-09 06:47:11,306 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-03-09 06:47:11,306 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-03-09 06:47:11,306 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-03-09 06:47:11,306 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-03-09 06:47:11,306 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-09 06:47:11,306 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-09 06:47:11,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-09 06:47:11,307 INFO L432 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-09 06:47:11,307 INFO L338 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2025-03-09 06:47:11,307 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2025-03-09 06:47:11,307 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-03-09 06:47:11,308 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2025-03-09 06:47:11,315 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 09.03 06:47:11 BoogieIcfgContainer [2025-03-09 06:47:11,315 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-03-09 06:47:11,315 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-09 06:47:11,315 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-09 06:47:11,315 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-09 06:47:11,316 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 06:47:09" (3/4) ... [2025-03-09 06:47:11,317 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-03-09 06:47:11,318 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-09 06:47:11,318 INFO L158 Benchmark]: Toolchain (without parser) took 2339.09ms. Allocated memory is still 167.8MB. Free memory was 129.7MB in the beginning and 62.9MB in the end (delta: 66.7MB). Peak memory consumption was 63.4MB. Max. memory is 16.1GB. [2025-03-09 06:47:11,318 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 201.3MB. Free memory is still 127.0MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 06:47:11,318 INFO L158 Benchmark]: CACSL2BoogieTranslator took 119.11ms. Allocated memory is still 167.8MB. Free memory was 129.2MB in the beginning and 119.7MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-09 06:47:11,319 INFO L158 Benchmark]: Boogie Procedure Inliner took 16.50ms. Allocated memory is still 167.8MB. Free memory was 119.7MB in the beginning and 118.8MB in the end (delta: 858.2kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 06:47:11,319 INFO L158 Benchmark]: Boogie Preprocessor took 15.12ms. Allocated memory is still 167.8MB. Free memory was 118.8MB in the beginning and 118.0MB in the end (delta: 844.3kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 06:47:11,319 INFO L158 Benchmark]: IcfgBuilder took 195.19ms. Allocated memory is still 167.8MB. Free memory was 118.0MB in the beginning and 106.9MB in the end (delta: 11.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-09 06:47:11,319 INFO L158 Benchmark]: BuchiAutomizer took 1986.17ms. Allocated memory is still 167.8MB. Free memory was 106.9MB in the beginning and 63.9MB in the end (delta: 43.0MB). Peak memory consumption was 38.3MB. Max. memory is 16.1GB. [2025-03-09 06:47:11,319 INFO L158 Benchmark]: Witness Printer took 2.34ms. Allocated memory is still 167.8MB. Free memory was 63.9MB in the beginning and 62.9MB in the end (delta: 908.5kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 06:47:11,320 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 201.3MB. Free memory is still 127.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 119.11ms. Allocated memory is still 167.8MB. Free memory was 129.2MB in the beginning and 119.7MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 16.50ms. Allocated memory is still 167.8MB. Free memory was 119.7MB in the beginning and 118.8MB in the end (delta: 858.2kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 15.12ms. Allocated memory is still 167.8MB. Free memory was 118.8MB in the beginning and 118.0MB in the end (delta: 844.3kB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 195.19ms. Allocated memory is still 167.8MB. Free memory was 118.0MB in the beginning and 106.9MB in the end (delta: 11.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 1986.17ms. Allocated memory is still 167.8MB. Free memory was 106.9MB in the beginning and 63.9MB in the end (delta: 43.0MB). Peak memory consumption was 38.3MB. Max. memory is 16.1GB. * Witness Printer took 2.34ms. Allocated memory is still 167.8MB. Free memory was 63.9MB in the beginning and 62.9MB in the end (delta: 908.5kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (2 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function (((long) -2 * b) + 1) and consists of 4 locations. One deterministic module has affine ranking function (((long) -2 * b) + 4294967293) and consists of 5 locations. 2 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.9s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 1.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 4 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 16 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 14 mSDsluCounter, 34 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 63 IncrementalHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 21 mSDtfsCounter, 63 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc1 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital28 mio100 ax100 hnf100 lsp76 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq154 hnf95 smp100 dnf270 smp67 tf108 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 31ms VariablesStem: 0 VariablesLoop: 4 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 0 MotzkinApplications: 4 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 3 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2025-03-09 06:47:11,328 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2025-03-09 06:47:11,533 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