./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-restricted-15/Ex05.c --full-output --architecture 64bit -------------------------------------------------------------------------------- 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-restricted-15/Ex05.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 fe18722fa54a7078517ae7582e6099223a71d937bfeb5065d832643df19b81c8 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 08:03:25,639 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 08:03:25,716 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-11-17 08:03:25,722 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 08:03:25,723 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 08:03:25,723 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2024-11-17 08:03:25,749 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 08:03:25,749 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 08:03:25,750 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 08:03:25,750 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 08:03:25,751 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 08:03:25,751 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 08:03:25,752 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 08:03:25,756 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 08:03:25,757 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-17 08:03:25,757 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-17 08:03:25,757 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-17 08:03:25,758 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-17 08:03:25,758 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-17 08:03:25,758 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-17 08:03:25,758 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 08:03:25,759 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-17 08:03:25,759 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 08:03:25,759 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 08:03:25,759 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-17 08:03:25,760 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-17 08:03:25,760 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-17 08:03:25,760 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 08:03:25,760 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 08:03:25,760 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-17 08:03:25,761 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-17 08:03:25,761 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 08:03:25,761 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 08:03:25,761 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 08:03:25,761 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 08:03:25,762 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 08:03:25,764 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-17 08:03:25,765 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fe18722fa54a7078517ae7582e6099223a71d937bfeb5065d832643df19b81c8 [2024-11-17 08:03:26,026 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 08:03:26,054 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 08:03:26,057 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 08:03:26,058 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 08:03:26,059 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 08:03:26,061 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/Ex05.c [2024-11-17 08:03:27,529 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 08:03:27,703 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 08:03:27,704 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/Ex05.c [2024-11-17 08:03:27,710 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/289ffcd5d/77c1407905b24d6ca2cee402875e1539/FLAG8951ea764 [2024-11-17 08:03:28,098 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/289ffcd5d/77c1407905b24d6ca2cee402875e1539 [2024-11-17 08:03:28,102 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 08:03:28,104 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 08:03:28,105 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 08:03:28,105 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 08:03:28,113 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 08:03:28,113 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 08:03:28" (1/1) ... [2024-11-17 08:03:28,114 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41455f79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:03:28, skipping insertion in model container [2024-11-17 08:03:28,115 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 08:03:28" (1/1) ... [2024-11-17 08:03:28,131 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 08:03:28,379 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 08:03:28,385 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 08:03:28,396 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 08:03:28,411 INFO L204 MainTranslator]: Completed translation [2024-11-17 08:03:28,412 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:03:28 WrapperNode [2024-11-17 08:03:28,412 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 08:03:28,414 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 08:03:28,414 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 08:03:28,414 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 08:03:28,420 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:03:28" (1/1) ... [2024-11-17 08:03:28,424 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:03:28" (1/1) ... [2024-11-17 08:03:28,441 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 11 [2024-11-17 08:03:28,442 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 08:03:28,443 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 08:03:28,443 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 08:03:28,443 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 08:03:28,454 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:03:28" (1/1) ... [2024-11-17 08:03:28,454 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:03:28" (1/1) ... [2024-11-17 08:03:28,454 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:03:28" (1/1) ... [2024-11-17 08:03:28,460 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-17 08:03:28,460 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:03:28" (1/1) ... [2024-11-17 08:03:28,460 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:03:28" (1/1) ... [2024-11-17 08:03:28,462 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:03:28" (1/1) ... [2024-11-17 08:03:28,462 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:03:28" (1/1) ... [2024-11-17 08:03:28,462 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:03:28" (1/1) ... [2024-11-17 08:03:28,463 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:03:28" (1/1) ... [2024-11-17 08:03:28,464 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 08:03:28,466 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 08:03:28,466 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 08:03:28,466 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 08:03:28,467 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:03:28" (1/1) ... [2024-11-17 08:03:28,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:03:28,483 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:03:28,501 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 08:03:28,503 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 08:03:28,538 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 08:03:28,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 08:03:28,608 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 08:03:28,610 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 08:03:28,639 INFO L? ?]: Removed 2 outVars from TransFormulas that were not future-live. [2024-11-17 08:03:28,640 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 08:03:28,649 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 08:03:28,649 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 08:03:28,650 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 08:03:28 BoogieIcfgContainer [2024-11-17 08:03:28,650 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 08:03:28,651 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-17 08:03:28,651 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-17 08:03:28,655 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-17 08:03:28,656 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-17 08:03:28,656 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 17.11 08:03:28" (1/3) ... [2024-11-17 08:03:28,657 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@40a7aed9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.11 08:03:28, skipping insertion in model container [2024-11-17 08:03:28,657 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-17 08:03:28,657 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:03:28" (2/3) ... [2024-11-17 08:03:28,658 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@40a7aed9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.11 08:03:28, skipping insertion in model container [2024-11-17 08:03:28,658 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-17 08:03:28,658 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 08:03:28" (3/3) ... [2024-11-17 08:03:28,659 INFO L332 chiAutomizerObserver]: Analyzing ICFG Ex05.c [2024-11-17 08:03:28,719 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-17 08:03:28,720 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-17 08:03:28,720 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-17 08:03:28,720 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-17 08:03:28,720 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-17 08:03:28,721 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-17 08:03:28,721 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-17 08:03:28,721 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-17 08:03:28,727 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 7 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:03:28,748 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-17 08:03:28,750 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:03:28,750 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:03:28,762 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-17 08:03:28,762 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-17 08:03:28,762 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-17 08:03:28,763 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 7 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:03:28,764 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-17 08:03:28,764 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:03:28,764 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:03:28,766 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-17 08:03:28,766 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-17 08:03:28,773 INFO L745 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 6#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_~i~0#1;havoc main_~i~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 2#L9true [2024-11-17 08:03:28,773 INFO L747 eck$LassoCheckResult]: Loop: 2#L9true assume true; 7#L9-1true assume !false; 2#L9true [2024-11-17 08:03:28,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:03:28,780 INFO L85 PathProgramCache]: Analyzing trace with hash 1216, now seen corresponding path program 1 times [2024-11-17 08:03:28,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:03:28,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908175016] [2024-11-17 08:03:28,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:03:28,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:03:28,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:03:28,873 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:03:28,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:03:28,894 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:03:28,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:03:28,897 INFO L85 PathProgramCache]: Analyzing trace with hash 1120, now seen corresponding path program 1 times [2024-11-17 08:03:28,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:03:28,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907219550] [2024-11-17 08:03:28,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:03:28,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:03:28,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:03:28,906 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:03:28,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:03:28,909 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:03:28,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:03:28,911 INFO L85 PathProgramCache]: Analyzing trace with hash 1168735, now seen corresponding path program 1 times [2024-11-17 08:03:28,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:03:28,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641178634] [2024-11-17 08:03:28,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:03:28,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:03:28,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:03:28,921 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:03:28,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:03:28,930 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:03:28,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:03:28,967 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:03:28,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:03:28,987 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 17.11 08:03:28 BoogieIcfgContainer [2024-11-17 08:03:28,987 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-17 08:03:28,987 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-17 08:03:28,987 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-17 08:03:28,987 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-17 08:03:28,988 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 08:03:28" (3/4) ... [2024-11-17 08:03:28,990 INFO L140 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-17 08:03:29,023 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-17 08:03:29,023 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-17 08:03:29,025 INFO L158 Benchmark]: Toolchain (without parser) took 920.22ms. Allocated memory is still 159.4MB. Free memory was 92.5MB in the beginning and 102.6MB in the end (delta: -10.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 08:03:29,026 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 113.2MB. Free memory is still 75.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 08:03:29,027 INFO L158 Benchmark]: CACSL2BoogieTranslator took 307.68ms. Allocated memory is still 159.4MB. Free memory was 92.2MB in the beginning and 130.6MB in the end (delta: -38.5MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB. [2024-11-17 08:03:29,028 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.90ms. Allocated memory is still 159.4MB. Free memory was 130.6MB in the beginning and 129.8MB in the end (delta: 833.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 08:03:29,028 INFO L158 Benchmark]: Boogie Preprocessor took 21.45ms. Allocated memory is still 159.4MB. Free memory was 129.8MB in the beginning and 128.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 08:03:29,029 INFO L158 Benchmark]: IcfgBuilder took 184.26ms. Allocated memory is still 159.4MB. Free memory was 128.3MB in the beginning and 120.0MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-17 08:03:29,029 INFO L158 Benchmark]: BuchiAutomizer took 335.85ms. Allocated memory is still 159.4MB. Free memory was 119.3MB in the beginning and 104.0MB in the end (delta: 15.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-17 08:03:29,030 INFO L158 Benchmark]: Witness Printer took 35.86ms. Allocated memory is still 159.4MB. Free memory was 104.0MB in the beginning and 102.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 08:03:29,034 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 113.2MB. Free memory is still 75.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 307.68ms. Allocated memory is still 159.4MB. Free memory was 92.2MB in the beginning and 130.6MB in the end (delta: -38.5MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.90ms. Allocated memory is still 159.4MB. Free memory was 130.6MB in the beginning and 129.8MB in the end (delta: 833.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.45ms. Allocated memory is still 159.4MB. Free memory was 129.8MB in the beginning and 128.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 184.26ms. Allocated memory is still 159.4MB. Free memory was 128.3MB in the beginning and 120.0MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 335.85ms. Allocated memory is still 159.4MB. Free memory was 119.3MB in the beginning and 104.0MB in the end (delta: 15.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 35.86ms. Allocated memory is still 159.4MB. Free memory was 104.0MB in the beginning and 102.6MB in the end (delta: 1.5MB). 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 0.2s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.2s. 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: 9]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L6] int i; [L7] i = __VERIFIER_nondet_int() Loop: [L9] COND TRUE \read(true) End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 9]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] i = __VERIFIER_nondet_int() Loop: [L9] COND TRUE \read(true) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-11-17 08:03:29,070 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)