./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-nla/divbin1-both-nt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-nla/divbin1-both-nt.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-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 32bit --witnessprinter.graph.data.programhash 34d019f936433212ffb98f9f63454a8763bb76cd95f2f69226ba6fae3efa4715 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 08:05:01,116 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 08:05:01,179 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-17 08:05:01,184 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 08:05:01,185 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 08:05:01,185 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2024-11-17 08:05:01,211 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 08:05:01,213 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 08:05:01,214 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 08:05:01,214 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 08:05:01,215 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 08:05:01,216 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 08:05:01,216 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 08:05:01,220 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 08:05:01,220 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-17 08:05:01,221 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-17 08:05:01,221 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-17 08:05:01,221 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-17 08:05:01,222 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-17 08:05:01,222 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-17 08:05:01,222 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 08:05:01,226 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-17 08:05:01,226 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-17 08:05:01,227 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 08:05:01,227 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-17 08:05:01,227 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 08:05:01,227 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-17 08:05:01,227 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-17 08:05:01,227 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-17 08:05:01,228 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 08:05:01,228 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 08:05:01,228 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-17 08:05:01,228 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-17 08:05:01,228 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-17 08:05:01,229 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 08:05:01,229 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 08:05:01,229 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 08:05:01,230 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 08:05:01,231 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 08:05:01,231 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-17 08:05:01,231 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 34d019f936433212ffb98f9f63454a8763bb76cd95f2f69226ba6fae3efa4715 [2024-11-17 08:05:01,449 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 08:05:01,466 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 08:05:01,469 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 08:05:01,470 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 08:05:01,470 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 08:05:01,471 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-nla/divbin1-both-nt.i [2024-11-17 08:05:02,779 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 08:05:02,915 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 08:05:02,915 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-nla/divbin1-both-nt.i [2024-11-17 08:05:02,921 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd2380a34/c35f65f3643f4040bb9004f1586daec5/FLAGf7670398d [2024-11-17 08:05:02,933 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd2380a34/c35f65f3643f4040bb9004f1586daec5 [2024-11-17 08:05:02,935 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 08:05:02,936 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 08:05:02,937 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 08:05:02,937 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 08:05:02,941 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 08:05:02,941 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 08:05:02" (1/1) ... [2024-11-17 08:05:02,942 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b00345e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:05:02, skipping insertion in model container [2024-11-17 08:05:02,942 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 08:05:02" (1/1) ... [2024-11-17 08:05:02,955 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 08:05:03,087 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 08:05:03,095 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 08:05:03,106 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 08:05:03,117 INFO L204 MainTranslator]: Completed translation [2024-11-17 08:05:03,117 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:05:03 WrapperNode [2024-11-17 08:05:03,118 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 08:05:03,118 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 08:05:03,118 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 08:05:03,119 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 08:05:03,124 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:05:03" (1/1) ... [2024-11-17 08:05:03,127 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:05:03" (1/1) ... [2024-11-17 08:05:03,139 INFO L138 Inliner]: procedures = 5, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 37 [2024-11-17 08:05:03,139 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 08:05:03,140 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 08:05:03,140 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 08:05:03,140 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 08:05:03,147 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:05:03" (1/1) ... [2024-11-17 08:05:03,147 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:05:03" (1/1) ... [2024-11-17 08:05:03,148 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:05:03" (1/1) ... [2024-11-17 08:05:03,152 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-17 08:05:03,152 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:05:03" (1/1) ... [2024-11-17 08:05:03,152 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:05:03" (1/1) ... [2024-11-17 08:05:03,154 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:05:03" (1/1) ... [2024-11-17 08:05:03,154 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:05:03" (1/1) ... [2024-11-17 08:05:03,154 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:05:03" (1/1) ... [2024-11-17 08:05:03,155 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:05:03" (1/1) ... [2024-11-17 08:05:03,156 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 08:05:03,157 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 08:05:03,157 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 08:05:03,157 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 08:05:03,157 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:05:03" (1/1) ... [2024-11-17 08:05:03,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:05:03,173 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:05:03,190 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:05:03,192 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-17 08:05:03,230 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 08:05:03,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 08:05:03,280 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 08:05:03,282 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 08:05:03,407 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-11-17 08:05:03,408 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 08:05:03,416 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 08:05:03,427 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 08:05:03,427 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 08:05:03 BoogieIcfgContainer [2024-11-17 08:05:03,427 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 08:05:03,428 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-17 08:05:03,428 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-17 08:05:03,431 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-17 08:05:03,432 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-17 08:05:03,432 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 17.11 08:05:02" (1/3) ... [2024-11-17 08:05:03,433 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1ed218f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.11 08:05:03, skipping insertion in model container [2024-11-17 08:05:03,433 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-17 08:05:03,433 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:05:03" (2/3) ... [2024-11-17 08:05:03,433 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1ed218f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.11 08:05:03, skipping insertion in model container [2024-11-17 08:05:03,434 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-17 08:05:03,434 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 08:05:03" (3/3) ... [2024-11-17 08:05:03,435 INFO L332 chiAutomizerObserver]: Analyzing ICFG divbin1-both-nt.i [2024-11-17 08:05:03,479 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-17 08:05:03,480 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-17 08:05:03,480 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-17 08:05:03,480 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-17 08:05:03,480 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-17 08:05:03,480 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-17 08:05:03,480 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-17 08:05:03,481 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-17 08:05:03,484 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 14 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 13 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:05:03,498 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-11-17 08:05:03,498 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:05:03,499 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:05:03,505 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2024-11-17 08:05:03,505 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-17 08:05:03,506 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-17 08:05:03,506 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 14 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 13 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:05:03,507 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-11-17 08:05:03,508 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:05:03,508 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:05:03,508 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2024-11-17 08:05:03,508 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-17 08:05:03,514 INFO L745 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 10#ULTIMATE.init_returnLabel#1true assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~A~0#1, main_~B~0#1, main_~q~0#1, main_~r~0#1, main_~b~0#1;havoc main_~A~0#1;havoc main_~B~0#1;havoc main_~q~0#1;havoc main_~r~0#1;havoc main_~b~0#1;havoc main_#t~nondet0#1;main_~A~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~B~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 13#L15-1true assume !(main_~B~0#1 % 4294967296 >= 2147483647); 3#L16-1true assume !(main_~B~0#1 % 4294967296 < 1); 14#L17-1true assume !(main_~A~0#1 % 4294967296 >= 2147483647);main_~q~0#1 := 0;main_~r~0#1 := main_~A~0#1;main_~b~0#1 := main_~B~0#1; 11#L21true assume main_~r~0#1 % 4294967296 < main_~b~0#1 % 4294967296; 9#L22true [2024-11-17 08:05:03,516 INFO L747 eck$LassoCheckResult]: Loop: 9#L22true assume true; 5#L22-1true assume !!(main_~A~0#1 % 4294967296 == (main_~q~0#1 * main_~b~0#1 + main_~r~0#1) % 4294967296); 12#L23true assume !(2 * (main_~b~0#1 % 4294967296 / 2) % 4294967296 == main_~b~0#1 % 4294967296); 9#L22true [2024-11-17 08:05:03,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:05:03,524 INFO L85 PathProgramCache]: Analyzing trace with hash 1626101911, now seen corresponding path program 1 times [2024-11-17 08:05:03,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:05:03,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579907125] [2024-11-17 08:05:03,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:05:03,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:05:03,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:05:03,623 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:05:03,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:05:03,652 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:05:03,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:05:03,654 INFO L85 PathProgramCache]: Analyzing trace with hash 38694, now seen corresponding path program 1 times [2024-11-17 08:05:03,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:05:03,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122261833] [2024-11-17 08:05:03,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:05:03,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:05:03,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-17 08:05:03,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [855381886] [2024-11-17 08:05:03,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:05:03,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 08:05:03,681 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:05:03,690 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 08:05:03,691 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-17 08:05:03,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:05:03,733 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:05:03,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:05:03,738 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:05:03,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:05:03,740 INFO L85 PathProgramCache]: Analyzing trace with hash 265907920, now seen corresponding path program 1 times [2024-11-17 08:05:03,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:05:03,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138166927] [2024-11-17 08:05:03,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:05:03,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:05:03,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-17 08:05:03,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1909897743] [2024-11-17 08:05:03,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:05:03,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 08:05:03,752 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:05:03,755 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 08:05:03,757 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-17 08:05:03,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:05:03,790 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:05:03,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:05:03,799 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:05:03,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:05:03,991 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:05:03,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:05:04,020 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 17.11 08:05:04 BoogieIcfgContainer [2024-11-17 08:05:04,021 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-17 08:05:04,021 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-17 08:05:04,022 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-17 08:05:04,023 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-17 08:05:04,023 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 08:05:03" (3/4) ... [2024-11-17 08:05:04,025 INFO L140 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-17 08:05:04,053 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-17 08:05:04,054 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-17 08:05:04,055 INFO L158 Benchmark]: Toolchain (without parser) took 1118.56ms. Allocated memory is still 176.2MB. Free memory was 104.5MB in the beginning and 115.9MB in the end (delta: -11.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 08:05:04,055 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 176.2MB. Free memory is still 130.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 08:05:04,056 INFO L158 Benchmark]: CACSL2BoogieTranslator took 181.08ms. Allocated memory is still 176.2MB. Free memory was 104.1MB in the beginning and 92.7MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-17 08:05:04,057 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.87ms. Allocated memory is still 176.2MB. Free memory was 92.5MB in the beginning and 91.3MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 08:05:04,057 INFO L158 Benchmark]: Boogie Preprocessor took 16.33ms. Allocated memory is still 176.2MB. Free memory was 91.1MB in the beginning and 90.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 08:05:04,057 INFO L158 Benchmark]: IcfgBuilder took 271.20ms. Allocated memory is still 176.2MB. Free memory was 89.8MB in the beginning and 146.3MB in the end (delta: -56.5MB). Peak memory consumption was 18.1MB. Max. memory is 16.1GB. [2024-11-17 08:05:04,058 INFO L158 Benchmark]: BuchiAutomizer took 592.56ms. Allocated memory is still 176.2MB. Free memory was 146.3MB in the beginning and 118.0MB in the end (delta: 28.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-11-17 08:05:04,059 INFO L158 Benchmark]: Witness Printer took 32.29ms. Allocated memory is still 176.2MB. Free memory was 118.0MB in the beginning and 115.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 08:05:04,061 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 176.2MB. Free memory is still 130.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 181.08ms. Allocated memory is still 176.2MB. Free memory was 104.1MB in the beginning and 92.7MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 20.87ms. Allocated memory is still 176.2MB. Free memory was 92.5MB in the beginning and 91.3MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 16.33ms. Allocated memory is still 176.2MB. Free memory was 91.1MB in the beginning and 90.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 271.20ms. Allocated memory is still 176.2MB. Free memory was 89.8MB in the beginning and 146.3MB in the end (delta: -56.5MB). Peak memory consumption was 18.1MB. Max. memory is 16.1GB. * BuchiAutomizer took 592.56ms. Allocated memory is still 176.2MB. Free memory was 146.3MB in the beginning and 118.0MB in the end (delta: 28.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Witness Printer took 32.29ms. Allocated memory is still 176.2MB. Free memory was 118.0MB in the beginning and 115.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.5s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. 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 [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 22]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L11] unsigned A, B; [L12] unsigned q, r, b; [L13] A = __VERIFIER_nondet_unsigned_int() [L14] B = __VERIFIER_nondet_unsigned_int() [L15] COND FALSE !(B >= (0x7fffffff * 2U + 1U)/2) VAL [B=-8589934591] [L16] COND FALSE !(B < 1) VAL [B=-8589934591] [L17] COND FALSE !(A >= (0x7fffffff * 2U + 1U)/2) [L18] q = 0 [L19] r = A [L20] b = B VAL [A=0, b=-8589934591, q=0, r=0] [L21] COND TRUE r < b VAL [A=0, b=-8589934591, q=0, r=0] Loop: [L22] COND TRUE A == q * b + r [L23] COND FALSE !(2 * (b / 2) == b) End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 22]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L11] unsigned A, B; [L12] unsigned q, r, b; [L13] A = __VERIFIER_nondet_unsigned_int() [L14] B = __VERIFIER_nondet_unsigned_int() [L15] COND FALSE !(B >= (0x7fffffff * 2U + 1U)/2) VAL [B=-8589934591] [L16] COND FALSE !(B < 1) VAL [B=-8589934591] [L17] COND FALSE !(A >= (0x7fffffff * 2U + 1U)/2) [L18] q = 0 [L19] r = A [L20] b = B VAL [A=0, b=-8589934591, q=0, r=0] [L21] COND TRUE r < b VAL [A=0, b=-8589934591, q=0, r=0] Loop: [L22] COND TRUE A == q * b + r [L23] COND FALSE !(2 * (b / 2) == b) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-11-17 08:05:04,087 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-17 08:05:04,286 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-17 08:05:04,491 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)