./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/float-benchs/water_pid.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 798a7b37 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/float-benchs/water_pid.c -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 934622c50be6b43827f31f94ee6f464812ea7c1827ffb5fb855e650934cdada0 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 15:59:49,624 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 15:59:49,685 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2025-03-04 15:59:49,690 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 15:59:49,692 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 15:59:49,692 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2025-03-04 15:59:49,717 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 15:59:49,718 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 15:59:49,718 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 15:59:49,718 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 15:59:49,719 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 15:59:49,719 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 15:59:49,719 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 15:59:49,719 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 15:59:49,720 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-03-04 15:59:49,721 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-03-04 15:59:49,721 INFO L153 SettingsManager]: * Use old map elimination=false [2025-03-04 15:59:49,721 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-03-04 15:59:49,721 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-03-04 15:59:49,721 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-03-04 15:59:49,721 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 15:59:49,721 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-03-04 15:59:49,721 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 15:59:49,721 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 15:59:49,721 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 15:59:49,721 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 15:59:49,721 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-03-04 15:59:49,721 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-03-04 15:59:49,721 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-03-04 15:59:49,721 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 15:59:49,721 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 15:59:49,721 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 15:59:49,721 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-03-04 15:59:49,721 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 15:59:49,722 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 15:59:49,722 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 15:59:49,722 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 15:59:49,722 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 15:59:49,722 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 15:59:49,722 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-03-04 15:59:49,722 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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 934622c50be6b43827f31f94ee6f464812ea7c1827ffb5fb855e650934cdada0 [2025-03-04 15:59:49,940 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 15:59:49,948 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 15:59:49,951 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 15:59:49,953 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 15:59:49,953 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 15:59:49,955 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/water_pid.c [2025-03-04 15:59:51,141 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35f682fa5/52fb7d1f3597496685c0b10a9007aff6/FLAG6862e2e60 [2025-03-04 15:59:51,358 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 15:59:51,358 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/water_pid.c [2025-03-04 15:59:51,381 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35f682fa5/52fb7d1f3597496685c0b10a9007aff6/FLAG6862e2e60 [2025-03-04 15:59:51,400 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35f682fa5/52fb7d1f3597496685c0b10a9007aff6 [2025-03-04 15:59:51,402 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 15:59:51,403 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 15:59:51,405 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 15:59:51,405 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 15:59:51,407 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 15:59:51,408 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 03:59:51" (1/1) ... [2025-03-04 15:59:51,408 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@624cf787 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:59:51, skipping insertion in model container [2025-03-04 15:59:51,410 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 03:59:51" (1/1) ... [2025-03-04 15:59:51,422 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 15:59:51,549 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 15:59:51,557 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 15:59:51,570 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 15:59:51,581 INFO L204 MainTranslator]: Completed translation [2025-03-04 15:59:51,582 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:59:51 WrapperNode [2025-03-04 15:59:51,582 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 15:59:51,582 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 15:59:51,582 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 15:59:51,583 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 15:59:51,586 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:59:51" (1/1) ... [2025-03-04 15:59:51,591 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:59:51" (1/1) ... [2025-03-04 15:59:51,600 INFO L138 Inliner]: procedures = 13, calls = 11, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 61 [2025-03-04 15:59:51,600 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 15:59:51,601 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 15:59:51,601 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 15:59:51,601 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 15:59:51,606 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:59:51" (1/1) ... [2025-03-04 15:59:51,606 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:59:51" (1/1) ... [2025-03-04 15:59:51,609 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:59:51" (1/1) ... [2025-03-04 15:59:51,616 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-03-04 15:59:51,616 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:59:51" (1/1) ... [2025-03-04 15:59:51,616 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:59:51" (1/1) ... [2025-03-04 15:59:51,618 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:59:51" (1/1) ... [2025-03-04 15:59:51,619 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:59:51" (1/1) ... [2025-03-04 15:59:51,619 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:59:51" (1/1) ... [2025-03-04 15:59:51,620 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:59:51" (1/1) ... [2025-03-04 15:59:51,622 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 15:59:51,624 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 15:59:51,624 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 15:59:51,624 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 15:59:51,625 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:59:51" (1/1) ... [2025-03-04 15:59:51,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:59:51,640 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:59:51,650 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) [2025-03-04 15:59:51,651 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 [2025-03-04 15:59:51,668 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 15:59:51,668 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 15:59:51,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 15:59:51,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 15:59:51,711 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 15:59:51,712 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 15:59:51,802 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2025-03-04 15:59:51,802 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 15:59:51,808 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 15:59:51,808 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 15:59:51,808 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 03:59:51 BoogieIcfgContainer [2025-03-04 15:59:51,808 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 15:59:51,809 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-03-04 15:59:51,809 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-03-04 15:59:51,813 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-03-04 15:59:51,813 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-04 15:59:51,813 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 04.03 03:59:51" (1/3) ... [2025-03-04 15:59:51,815 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3de29e76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 04.03 03:59:51, skipping insertion in model container [2025-03-04 15:59:51,815 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-04 15:59:51,816 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:59:51" (2/3) ... [2025-03-04 15:59:51,816 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3de29e76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 04.03 03:59:51, skipping insertion in model container [2025-03-04 15:59:51,816 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-04 15:59:51,816 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 03:59:51" (3/3) ... [2025-03-04 15:59:51,817 INFO L363 chiAutomizerObserver]: Analyzing ICFG water_pid.c [2025-03-04 15:59:51,850 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-03-04 15:59:51,850 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-03-04 15:59:51,850 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-03-04 15:59:51,850 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-03-04 15:59:51,850 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-03-04 15:59:51,850 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-03-04 15:59:51,850 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-03-04 15:59:51,851 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-03-04 15:59:51,854 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:59:51,866 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2025-03-04 15:59:51,867 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-04 15:59:51,867 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-04 15:59:51,870 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2025-03-04 15:59:51,870 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2025-03-04 15:59:51,870 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-03-04 15:59:51,870 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:59:51,872 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2025-03-04 15:59:51,872 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-04 15:59:51,872 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-04 15:59:51,872 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2025-03-04 15:59:51,872 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2025-03-04 15:59:51,877 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(12, 2);call #Ultimate.allocInit(12, 3);~yn~0 := ~convertINTToDOUBLE(0);~ui~0 := ~convertINTToDOUBLE(0);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_#t~ret5#1, main_#t~post6#1, main_~yi~0#1, main_~yc~0#1, main_~K~0#1, main_~T~0#1, main_~taui~0#1, main_~taud~0#1, main_~ei~0#1, main_~sumej~0#1, main_~epi~0#1, main_~i~0#1;havoc main_~yi~0#1;havoc main_~yc~0#1;havoc main_~K~0#1;havoc main_~T~0#1;havoc main_~taui~0#1;havoc main_~taud~0#1;havoc main_~ei~0#1;havoc main_~sumej~0#1;havoc main_~epi~0#1;havoc main_~i~0#1;main_~T~0#1 := ~convertINTToDOUBLE(1);main_~taui~0#1 := ~convertINTToDOUBLE(1);main_~taud~0#1 := ~convertINTToDOUBLE(1);main_~K~0#1 := 0.5;main_~yc~0#1 := 0.5;assume { :begin_inline_y } true;y_#in~i#1 := 0;havoc y_#res#1;havoc y_~i#1;y_~i#1 := y_#in~i#1;~yn~0 := ~someBinaryArithmeticDOUBLEoperation(~yn~0, ~ui~0);y_#res#1 := ~yn~0;" "main_#t~ret4#1 := y_#res#1;havoc y_~i#1;havoc y_#in~i#1;assume { :end_inline_y } true;main_~yi~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1;main_~epi~0#1 := ~someBinaryArithmeticDOUBLEoperation(main_~yc~0#1, main_~yi~0#1);main_~sumej~0#1 := main_~epi~0#1;main_~i~0#1 := 0;" [2025-03-04 15:59:51,878 INFO L754 eck$LassoCheckResult]: Loop: "assume main_~i~0#1 < 120;assume { :begin_inline_y } true;y_#in~i#1 := main_~i~0#1;havoc y_#res#1;havoc y_~i#1;y_~i#1 := y_#in~i#1;~yn~0 := ~someBinaryArithmeticDOUBLEoperation(~yn~0, ~ui~0);y_#res#1 := ~yn~0;" "main_#t~ret5#1 := y_#res#1;havoc y_~i#1;havoc y_#in~i#1;assume { :end_inline_y } true;main_~yi~0#1 := main_#t~ret5#1;havoc main_#t~ret5#1;main_~ei~0#1 := ~someBinaryArithmeticDOUBLEoperation(main_~yc~0#1, main_~yi~0#1);main_~sumej~0#1 := ~someBinaryArithmeticDOUBLEoperation(main_~sumej~0#1, main_~ei~0#1);~ui~0 := ~someBinaryArithmeticDOUBLEoperation(main_~K~0#1, ~someBinaryArithmeticDOUBLEoperation(~someBinaryArithmeticDOUBLEoperation(main_~ei~0#1, ~someBinaryArithmeticDOUBLEoperation(~someBinaryArithmeticDOUBLEoperation(main_~sumej~0#1, main_~T~0#1), main_~taui~0#1)), ~someBinaryArithmeticDOUBLEoperation(~someBinaryArithmeticDOUBLEoperation(main_~taud~0#1, main_~T~0#1), ~someBinaryArithmeticDOUBLEoperation(main_~ei~0#1, main_~epi~0#1))));main_~epi~0#1 := main_~ei~0#1;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if ~someBinaryDOUBLEComparisonOperation(main_~epi~0#1, ~someUnaryDOUBLEoperation(1.0)) && ~someBinaryDOUBLEComparisonOperation(main_~epi~0#1, 1.0) then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1;" "assume !(0 == __VERIFIER_assert_~cond#1);" "havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;main_#t~post6#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1;" [2025-03-04 15:59:51,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:59:51,881 INFO L85 PathProgramCache]: Analyzing trace with hash 44652, now seen corresponding path program 1 times [2025-03-04 15:59:51,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:59:51,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642510075] [2025-03-04 15:59:51,889 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:59:51,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:59:51,941 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-04 15:59:51,950 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-04 15:59:51,951 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:59:51,951 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 15:59:51,951 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 15:59:51,957 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-04 15:59:51,961 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-04 15:59:51,963 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:59:51,963 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 15:59:51,976 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 15:59:51,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:59:51,979 INFO L85 PathProgramCache]: Analyzing trace with hash 1260122, now seen corresponding path program 1 times [2025-03-04 15:59:51,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:59:51,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220814147] [2025-03-04 15:59:51,979 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:59:51,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:59:51,987 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-04 15:59:52,000 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-04 15:59:52,001 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:59:52,001 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 15:59:52,001 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 15:59:52,003 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-04 15:59:52,007 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-04 15:59:52,007 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:59:52,007 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 15:59:52,011 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 15:59:52,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:59:52,014 INFO L85 PathProgramCache]: Analyzing trace with hash -1712276667, now seen corresponding path program 1 times [2025-03-04 15:59:52,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:59:52,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374723101] [2025-03-04 15:59:52,014 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:59:52,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:59:52,021 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-04 15:59:52,032 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 15:59:52,033 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:59:52,033 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 15:59:52,033 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 15:59:52,036 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-04 15:59:52,048 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 15:59:52,049 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:59:52,049 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 15:59:52,052 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 15:59:52,148 INFO L204 LassoAnalysis]: Preferences: [2025-03-04 15:59:52,149 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-04 15:59:52,149 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-04 15:59:52,149 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-04 15:59:52,149 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-03-04 15:59:52,149 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:59:52,149 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-04 15:59:52,149 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-04 15:59:52,149 INFO L132 ssoRankerPreferences]: Filename of dumped script: water_pid.c_Iteration1_Loop [2025-03-04 15:59:52,150 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-04 15:59:52,151 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-04 15:59:52,160 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:59:52,172 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:59:52,179 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:59:52,183 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:59:52,186 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:59:52,190 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:59:52,192 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:59:52,194 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:59:52,196 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:59:52,198 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:59:52,202 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:59:52,257 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-04 15:59:52,258 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-03-04 15:59:52,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:59:52,259 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:59:52,262 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) [2025-03-04 15:59:52,264 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 [2025-03-04 15:59:52,265 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-04 15:59:52,265 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-04 15:59:52,287 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 [2025-03-04 15:59:52,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:59:52,288 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:59:52,290 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) [2025-03-04 15:59:52,299 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 [2025-03-04 15:59:52,302 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-03-04 15:59:52,302 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-04 15:59:52,325 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-03-04 15:59:52,329 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 [2025-03-04 15:59:52,329 INFO L204 LassoAnalysis]: Preferences: [2025-03-04 15:59:52,329 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-04 15:59:52,329 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-04 15:59:52,329 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-04 15:59:52,329 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-03-04 15:59:52,329 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:59:52,329 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-04 15:59:52,329 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-04 15:59:52,329 INFO L132 ssoRankerPreferences]: Filename of dumped script: water_pid.c_Iteration1_Loop [2025-03-04 15:59:52,329 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-04 15:59:52,329 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-04 15:59:52,330 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:59:52,340 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:59:52,344 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:59:52,346 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:59:52,348 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:59:52,350 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:59:52,352 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:59:52,354 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:59:52,362 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:59:52,370 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:59:52,376 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 15:59:52,435 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-04 15:59:52,440 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-03-04 15:59:52,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:59:52,441 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:59:52,443 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) [2025-03-04 15:59:52,444 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 [2025-03-04 15:59:52,445 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 [2025-03-04 15:59:52,457 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-04 15:59:52,457 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-04 15:59:52,458 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-04 15:59:52,458 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-04 15:59:52,458 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-04 15:59:52,461 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-04 15:59:52,461 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-04 15:59:52,464 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-03-04 15:59:52,468 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-03-04 15:59:52,470 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-03-04 15:59:52,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 15:59:52,472 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:59:52,474 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) [2025-03-04 15:59:52,475 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 [2025-03-04 15:59:52,475 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-03-04 15:59:52,476 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-03-04 15:59:52,476 INFO L474 LassoAnalysis]: Proved termination. [2025-03-04 15:59:52,476 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 239 Supporting invariants [] [2025-03-04 15:59:52,483 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 [2025-03-04 15:59:52,486 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-03-04 15:59:52,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:59:52,516 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-04 15:59:52,525 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-04 15:59:52,526 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:59:52,526 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:59:52,527 INFO L256 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-04 15:59:52,528 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 15:59:52,539 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-04 15:59:52,542 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-04 15:59:52,542 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:59:52,542 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:59:52,542 INFO L256 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-04 15:59:52,543 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 15:59:52,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:59:52,590 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 [2025-03-04 15:59:52,591 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:59:52,626 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 25 states and 29 transitions. Complement of second has 6 states. [2025-03-04 15:59:52,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2025-03-04 15:59:52,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:59:52,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 19 transitions. [2025-03-04 15:59:52,638 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 3 letters. Loop has 4 letters. [2025-03-04 15:59:52,640 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-04 15:59:52,641 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 7 letters. Loop has 4 letters. [2025-03-04 15:59:52,641 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-04 15:59:52,641 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 3 letters. Loop has 8 letters. [2025-03-04 15:59:52,641 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-04 15:59:52,656 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 29 transitions. [2025-03-04 15:59:52,656 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-03-04 15:59:52,658 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 0 states and 0 transitions. [2025-03-04 15:59:52,658 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-03-04 15:59:52,658 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-03-04 15:59:52,658 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-03-04 15:59:52,659 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-03-04 15:59:52,659 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-04 15:59:52,659 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-04 15:59:52,659 INFO L432 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-04 15:59:52,659 INFO L338 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-03-04 15:59:52,659 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2025-03-04 15:59:52,659 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-03-04 15:59:52,659 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2025-03-04 15:59:52,665 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 04.03 03:59:52 BoogieIcfgContainer [2025-03-04 15:59:52,668 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-03-04 15:59:52,668 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 [2025-03-04 15:59:52,669 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-04 15:59:52,669 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-04 15:59:52,669 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-04 15:59:52,669 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 03:59:51" (3/4) ... [2025-03-04 15:59:52,671 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-03-04 15:59:52,671 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-04 15:59:52,672 INFO L158 Benchmark]: Toolchain (without parser) took 1268.53ms. Allocated memory is still 142.6MB. Free memory was 107.0MB in the beginning and 103.4MB in the end (delta: 3.6MB). Peak memory consumption was 5.1MB. Max. memory is 16.1GB. [2025-03-04 15:59:52,672 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 201.3MB. Free memory is still 128.7MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 15:59:52,672 INFO L158 Benchmark]: CACSL2BoogieTranslator took 177.58ms. Allocated memory is still 142.6MB. Free memory was 107.0MB in the beginning and 95.8MB in the end (delta: 11.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-04 15:59:52,672 INFO L158 Benchmark]: Boogie Procedure Inliner took 17.74ms. Allocated memory is still 142.6MB. Free memory was 95.8MB in the beginning and 94.8MB in the end (delta: 985.3kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 15:59:52,674 INFO L158 Benchmark]: Boogie Preprocessor took 22.06ms. Allocated memory is still 142.6MB. Free memory was 94.8MB in the beginning and 93.4MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-04 15:59:52,674 INFO L158 Benchmark]: IcfgBuilder took 184.41ms. Allocated memory is still 142.6MB. Free memory was 93.4MB in the beginning and 82.0MB in the end (delta: 11.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-04 15:59:52,674 INFO L158 Benchmark]: BuchiAutomizer took 859.21ms. Allocated memory is still 142.6MB. Free memory was 82.0MB in the beginning and 103.6MB in the end (delta: -21.6MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 15:59:52,676 INFO L158 Benchmark]: Witness Printer took 2.75ms. Allocated memory is still 142.6MB. Free memory was 103.6MB in the beginning and 103.4MB in the end (delta: 192.6kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 15:59:52,677 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 201.3MB. Free memory is still 128.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 177.58ms. Allocated memory is still 142.6MB. Free memory was 107.0MB in the beginning and 95.8MB in the end (delta: 11.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 17.74ms. Allocated memory is still 142.6MB. Free memory was 95.8MB in the beginning and 94.8MB in the end (delta: 985.3kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 22.06ms. Allocated memory is still 142.6MB. Free memory was 94.8MB in the beginning and 93.4MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 184.41ms. Allocated memory is still 142.6MB. Free memory was 93.4MB in the beginning and 82.0MB in the end (delta: 11.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 859.21ms. Allocated memory is still 142.6MB. Free memory was 82.0MB in the beginning and 103.6MB in the end (delta: -21.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.75ms. Allocated memory is still 142.6MB. Free memory was 103.6MB in the beginning and 103.4MB in the end (delta: 192.6kB). 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 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function (((long long) -2 * i) + 239) and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.8s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. 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 [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5 mSDsluCounter, 9 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7 IncrementalHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 6 mSDtfsCounter, 7 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital10 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 35ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2025-03-04 15:59:52,689 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