./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/termination.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-simple/nested_2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-simple/nested_2.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 d28004f57c6988e792d07d7254dfd532aeffd19f38063d85c3bfa2c0f504914f --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 22:42:14,525 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 22:42:14,598 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-20 22:42:14,603 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 22:42:14,604 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 22:42:14,633 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 22:42:14,634 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 22:42:14,634 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 22:42:14,635 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 22:42:14,635 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 22:42:14,636 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 22:42:14,637 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 22:42:14,637 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 22:42:14,637 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-20 22:42:14,637 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-20 22:42:14,638 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-20 22:42:14,638 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-20 22:42:14,638 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-20 22:42:14,639 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-20 22:42:14,639 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 22:42:14,640 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-20 22:42:14,641 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 22:42:14,642 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 22:42:14,646 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 22:42:14,647 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 22:42:14,647 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-20 22:42:14,647 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-20 22:42:14,647 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-20 22:42:14,647 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 22:42:14,648 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-20 22:42:14,648 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 22:42:14,648 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 22:42:14,648 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-20 22:42:14,648 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 22:42:14,648 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 22:42:14,649 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 22:42:14,649 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 22:42:14,649 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 22:42:14,650 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-20 22:42:14,650 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d28004f57c6988e792d07d7254dfd532aeffd19f38063d85c3bfa2c0f504914f [2024-11-20 22:42:14,915 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 22:42:14,940 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 22:42:14,943 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 22:42:14,944 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 22:42:14,944 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 22:42:14,946 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-simple/nested_2.c [2024-11-20 22:42:16,355 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 22:42:16,573 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 22:42:16,573 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-simple/nested_2.c [2024-11-20 22:42:16,580 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b83021d3/46eb3c52d0f84f258d1f8301843ac515/FLAG05f22b995 [2024-11-20 22:42:16,592 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b83021d3/46eb3c52d0f84f258d1f8301843ac515 [2024-11-20 22:42:16,596 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 22:42:16,597 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 22:42:16,599 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 22:42:16,599 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 22:42:16,605 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 22:42:16,606 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:42:16" (1/1) ... [2024-11-20 22:42:16,606 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c2bf7dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:42:16, skipping insertion in model container [2024-11-20 22:42:16,607 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:42:16" (1/1) ... [2024-11-20 22:42:16,626 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 22:42:16,816 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 22:42:16,830 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 22:42:16,844 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 22:42:16,861 INFO L204 MainTranslator]: Completed translation [2024-11-20 22:42:16,862 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:42:16 WrapperNode [2024-11-20 22:42:16,862 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 22:42:16,863 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 22:42:16,864 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 22:42:16,864 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 22:42:16,870 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:42:16" (1/1) ... [2024-11-20 22:42:16,875 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:42:16" (1/1) ... [2024-11-20 22:42:16,891 INFO L138 Inliner]: procedures = 10, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 32 [2024-11-20 22:42:16,891 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 22:42:16,892 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 22:42:16,892 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 22:42:16,892 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 22:42:16,901 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:42:16" (1/1) ... [2024-11-20 22:42:16,901 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:42:16" (1/1) ... [2024-11-20 22:42:16,902 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:42:16" (1/1) ... [2024-11-20 22:42:16,910 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]. [2024-11-20 22:42:16,911 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:42:16" (1/1) ... [2024-11-20 22:42:16,911 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:42:16" (1/1) ... [2024-11-20 22:42:16,913 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:42:16" (1/1) ... [2024-11-20 22:42:16,916 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:42:16" (1/1) ... [2024-11-20 22:42:16,918 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:42:16" (1/1) ... [2024-11-20 22:42:16,919 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:42:16" (1/1) ... [2024-11-20 22:42:16,920 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 22:42:16,921 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 22:42:16,921 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 22:42:16,921 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 22:42:16,922 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:42:16" (1/1) ... [2024-11-20 22:42:16,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:42:16,938 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:42:16,955 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) [2024-11-20 22:42:16,961 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 [2024-11-20 22:42:17,014 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 22:42:17,014 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 22:42:17,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 22:42:17,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 22:42:17,073 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 22:42:17,075 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 22:42:17,188 INFO L? ?]: Removed 4 outVars from TransFormulas that were not future-live. [2024-11-20 22:42:17,189 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 22:42:17,203 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 22:42:17,203 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-20 22:42:17,204 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:42:17 BoogieIcfgContainer [2024-11-20 22:42:17,204 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 22:42:17,205 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-20 22:42:17,205 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-20 22:42:17,210 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-20 22:42:17,211 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-20 22:42:17,212 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 10:42:16" (1/3) ... [2024-11-20 22:42:17,213 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@453a1231 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 10:42:17, skipping insertion in model container [2024-11-20 22:42:17,214 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-20 22:42:17,214 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:42:16" (2/3) ... [2024-11-20 22:42:17,214 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@453a1231 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 10:42:17, skipping insertion in model container [2024-11-20 22:42:17,215 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-20 22:42:17,215 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:42:17" (3/3) ... [2024-11-20 22:42:17,216 INFO L332 chiAutomizerObserver]: Analyzing ICFG nested_2.c [2024-11-20 22:42:17,290 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-20 22:42:17,291 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-20 22:42:17,291 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-20 22:42:17,291 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-20 22:42:17,291 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-20 22:42:17,291 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-20 22:42:17,292 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-20 22:42:17,292 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-20 22:42:17,296 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 22:42:17,313 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-11-20 22:42:17,314 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-20 22:42:17,315 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-20 22:42:17,319 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-20 22:42:17,320 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-20 22:42:17,320 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-20 22:42:17,320 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 22:42:17,321 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-11-20 22:42:17,321 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-20 22:42:17,321 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-20 22:42:17,321 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-20 22:42:17,322 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-20 22:42:17,328 INFO L745 eck$LassoCheckResult]: Stem: 8#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(11, 2);call #Ultimate.allocInit(12, 3); 11#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~pre4#1, main_#t~pre5#1, main_~a~0#1, main_~b~0#1;main_~a~0#1 := 6;main_~b~0#1 := 6;main_~a~0#1 := 0; 6#L20-3true [2024-11-20 22:42:17,329 INFO L747 eck$LassoCheckResult]: Loop: 6#L20-3true assume !!(main_~a~0#1 < 6);main_~b~0#1 := 0; 3#L21-3true assume !(main_~b~0#1 < 6); 7#L20-2true main_#t~pre5#1 := 1 + main_~a~0#1;main_~a~0#1 := 1 + main_~a~0#1;havoc main_#t~pre5#1; 6#L20-3true [2024-11-20 22:42:17,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:42:17,335 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-11-20 22:42:17,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:42:17,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569712461] [2024-11-20 22:42:17,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:42:17,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:42:17,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:42:17,448 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 22:42:17,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:42:17,474 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 22:42:17,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:42:17,478 INFO L85 PathProgramCache]: Analyzing trace with hash 39921, now seen corresponding path program 1 times [2024-11-20 22:42:17,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:42:17,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652321214] [2024-11-20 22:42:17,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:42:17,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:42:17,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:42:17,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:42:17,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 22:42:17,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652321214] [2024-11-20 22:42:17,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652321214] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 22:42:17,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 22:42:17,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 22:42:17,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708524744] [2024-11-20 22:42:17,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 22:42:17,554 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-20 22:42:17,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 22:42:17,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 22:42:17,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 22:42:17,590 INFO L87 Difference]: Start difference. First operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 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) [2024-11-20 22:42:17,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 22:42:17,613 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2024-11-20 22:42:17,618 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 14 transitions. [2024-11-20 22:42:17,621 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-11-20 22:42:17,623 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 8 states and 9 transitions. [2024-11-20 22:42:17,624 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2024-11-20 22:42:17,625 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2024-11-20 22:42:17,625 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 9 transitions. [2024-11-20 22:42:17,625 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-20 22:42:17,626 INFO L218 hiAutomatonCegarLoop]: Abstraction has 8 states and 9 transitions. [2024-11-20 22:42:17,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 9 transitions. [2024-11-20 22:42:17,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2024-11-20 22:42:17,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 22:42:17,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 8 transitions. [2024-11-20 22:42:17,655 INFO L240 hiAutomatonCegarLoop]: Abstraction has 7 states and 8 transitions. [2024-11-20 22:42:17,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 22:42:17,660 INFO L425 stractBuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2024-11-20 22:42:17,662 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-20 22:42:17,662 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 8 transitions. [2024-11-20 22:42:17,663 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-20 22:42:17,663 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-20 22:42:17,663 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-20 22:42:17,664 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-20 22:42:17,664 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2024-11-20 22:42:17,664 INFO L745 eck$LassoCheckResult]: Stem: 38#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(11, 2);call #Ultimate.allocInit(12, 3); 39#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~pre4#1, main_#t~pre5#1, main_~a~0#1, main_~b~0#1;main_~a~0#1 := 6;main_~b~0#1 := 6;main_~a~0#1 := 0; 36#L20-3 [2024-11-20 22:42:17,664 INFO L747 eck$LassoCheckResult]: Loop: 36#L20-3 assume !!(main_~a~0#1 < 6);main_~b~0#1 := 0; 34#L21-3 assume !!(main_~b~0#1 < 6); 35#L21-2 main_#t~pre4#1 := 1 + main_~b~0#1;main_~b~0#1 := 1 + main_~b~0#1;havoc main_#t~pre4#1; 40#L21-3 assume !(main_~b~0#1 < 6); 37#L20-2 main_#t~pre5#1 := 1 + main_~a~0#1;main_~a~0#1 := 1 + main_~a~0#1;havoc main_#t~pre5#1; 36#L20-3 [2024-11-20 22:42:17,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:42:17,665 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2024-11-20 22:42:17,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:42:17,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859824408] [2024-11-20 22:42:17,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:42:17,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:42:17,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:42:17,673 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 22:42:17,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:42:17,681 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 22:42:17,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:42:17,683 INFO L85 PathProgramCache]: Analyzing trace with hash 38420339, now seen corresponding path program 1 times [2024-11-20 22:42:17,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:42:17,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795772751] [2024-11-20 22:42:17,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:42:17,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:42:17,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:42:17,743 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:42:17,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 22:42:17,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795772751] [2024-11-20 22:42:17,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795772751] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 22:42:17,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [918904410] [2024-11-20 22:42:17,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:42:17,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 22:42:17,744 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:42:17,749 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) [2024-11-20 22:42:17,751 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-20 22:42:17,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:42:17,785 INFO L255 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-20 22:42:17,787 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 22:42:17,830 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:42:17,830 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 22:42:17,869 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:42:17,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [918904410] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 22:42:17,869 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 22:42:17,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2024-11-20 22:42:17,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532824778] [2024-11-20 22:42:17,870 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 22:42:17,870 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-20 22:42:17,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 22:42:17,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 22:42:17,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-20 22:42:17,871 INFO L87 Difference]: Start difference. First operand 7 states and 8 transitions. cyclomatic complexity: 2 Second operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 5 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) [2024-11-20 22:42:17,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 22:42:17,906 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2024-11-20 22:42:17,906 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 14 transitions. [2024-11-20 22:42:17,906 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 11 [2024-11-20 22:42:17,907 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 13 states and 14 transitions. [2024-11-20 22:42:17,908 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2024-11-20 22:42:17,909 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2024-11-20 22:42:17,909 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 14 transitions. [2024-11-20 22:42:17,909 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-20 22:42:17,909 INFO L218 hiAutomatonCegarLoop]: Abstraction has 13 states and 14 transitions. [2024-11-20 22:42:17,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 14 transitions. [2024-11-20 22:42:17,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2024-11-20 22:42:17,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.0769230769230769) internal successors, (14), 12 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 22:42:17,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2024-11-20 22:42:17,913 INFO L240 hiAutomatonCegarLoop]: Abstraction has 13 states and 14 transitions. [2024-11-20 22:42:17,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 22:42:17,915 INFO L425 stractBuchiCegarLoop]: Abstraction has 13 states and 14 transitions. [2024-11-20 22:42:17,915 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-20 22:42:17,915 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 14 transitions. [2024-11-20 22:42:17,916 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 11 [2024-11-20 22:42:17,916 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-20 22:42:17,916 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-20 22:42:17,917 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-20 22:42:17,917 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [4, 4, 1, 1, 1] [2024-11-20 22:42:17,918 INFO L745 eck$LassoCheckResult]: Stem: 92#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(11, 2);call #Ultimate.allocInit(12, 3); 93#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~pre4#1, main_#t~pre5#1, main_~a~0#1, main_~b~0#1;main_~a~0#1 := 6;main_~b~0#1 := 6;main_~a~0#1 := 0; 89#L20-3 [2024-11-20 22:42:17,918 INFO L747 eck$LassoCheckResult]: Loop: 89#L20-3 assume !!(main_~a~0#1 < 6);main_~b~0#1 := 0; 90#L21-3 assume !!(main_~b~0#1 < 6); 94#L21-2 main_#t~pre4#1 := 1 + main_~b~0#1;main_~b~0#1 := 1 + main_~b~0#1;havoc main_#t~pre4#1; 87#L21-3 assume !!(main_~b~0#1 < 6); 88#L21-2 main_#t~pre4#1 := 1 + main_~b~0#1;main_~b~0#1 := 1 + main_~b~0#1;havoc main_#t~pre4#1; 99#L21-3 assume !!(main_~b~0#1 < 6); 98#L21-2 main_#t~pre4#1 := 1 + main_~b~0#1;main_~b~0#1 := 1 + main_~b~0#1;havoc main_#t~pre4#1; 97#L21-3 assume !!(main_~b~0#1 < 6); 96#L21-2 main_#t~pre4#1 := 1 + main_~b~0#1;main_~b~0#1 := 1 + main_~b~0#1;havoc main_#t~pre4#1; 95#L21-3 assume !(main_~b~0#1 < 6); 91#L20-2 main_#t~pre5#1 := 1 + main_~a~0#1;main_~a~0#1 := 1 + main_~a~0#1;havoc main_#t~pre5#1; 89#L20-3 [2024-11-20 22:42:17,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:42:17,919 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 3 times [2024-11-20 22:42:17,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:42:17,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397455016] [2024-11-20 22:42:17,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:42:17,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:42:17,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:42:17,931 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 22:42:17,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:42:17,939 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 22:42:17,943 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:42:17,943 INFO L85 PathProgramCache]: Analyzing trace with hash 718182137, now seen corresponding path program 2 times [2024-11-20 22:42:17,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:42:17,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008288035] [2024-11-20 22:42:17,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:42:17,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:42:17,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:42:18,085 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:42:18,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 22:42:18,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008288035] [2024-11-20 22:42:18,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008288035] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 22:42:18,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [265234002] [2024-11-20 22:42:18,086 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-20 22:42:18,086 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 22:42:18,087 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:42:18,112 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) [2024-11-20 22:42:18,114 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-20 22:42:18,155 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-20 22:42:18,156 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 22:42:18,157 INFO L255 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-20 22:42:18,159 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 22:42:18,208 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:42:18,208 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 22:42:18,288 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:42:18,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [265234002] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 22:42:18,289 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 22:42:18,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 7 [2024-11-20 22:42:18,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387159208] [2024-11-20 22:42:18,289 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 22:42:18,289 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-20 22:42:18,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 22:42:18,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 22:42:18,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2024-11-20 22:42:18,291 INFO L87 Difference]: Start difference. First operand 13 states and 14 transitions. cyclomatic complexity: 2 Second operand has 8 states, 8 states have (on average 1.875) internal successors, (15), 7 states have internal predecessors, (15), 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) [2024-11-20 22:42:18,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 22:42:18,327 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2024-11-20 22:42:18,327 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 18 transitions. [2024-11-20 22:42:18,328 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 15 [2024-11-20 22:42:18,328 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 17 states and 18 transitions. [2024-11-20 22:42:18,329 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2024-11-20 22:42:18,330 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2024-11-20 22:42:18,330 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 18 transitions. [2024-11-20 22:42:18,330 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-20 22:42:18,331 INFO L218 hiAutomatonCegarLoop]: Abstraction has 17 states and 18 transitions. [2024-11-20 22:42:18,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 18 transitions. [2024-11-20 22:42:18,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2024-11-20 22:42:18,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 17 states have (on average 1.0588235294117647) internal successors, (18), 16 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 22:42:18,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2024-11-20 22:42:18,334 INFO L240 hiAutomatonCegarLoop]: Abstraction has 17 states and 18 transitions. [2024-11-20 22:42:18,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-20 22:42:18,336 INFO L425 stractBuchiCegarLoop]: Abstraction has 17 states and 18 transitions. [2024-11-20 22:42:18,336 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-20 22:42:18,336 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 18 transitions. [2024-11-20 22:42:18,337 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 15 [2024-11-20 22:42:18,337 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-20 22:42:18,337 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-20 22:42:18,337 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-20 22:42:18,337 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [6, 6, 1, 1, 1] [2024-11-20 22:42:18,338 INFO L745 eck$LassoCheckResult]: Stem: 193#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(11, 2);call #Ultimate.allocInit(12, 3); 194#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~pre4#1, main_#t~pre5#1, main_~a~0#1, main_~b~0#1;main_~a~0#1 := 6;main_~b~0#1 := 6;main_~a~0#1 := 0; 190#L20-3 [2024-11-20 22:42:18,338 INFO L747 eck$LassoCheckResult]: Loop: 190#L20-3 assume !!(main_~a~0#1 < 6);main_~b~0#1 := 0; 191#L21-3 assume !!(main_~b~0#1 < 6); 195#L21-2 main_#t~pre4#1 := 1 + main_~b~0#1;main_~b~0#1 := 1 + main_~b~0#1;havoc main_#t~pre4#1; 188#L21-3 assume !!(main_~b~0#1 < 6); 189#L21-2 main_#t~pre4#1 := 1 + main_~b~0#1;main_~b~0#1 := 1 + main_~b~0#1;havoc main_#t~pre4#1; 204#L21-3 assume !!(main_~b~0#1 < 6); 203#L21-2 main_#t~pre4#1 := 1 + main_~b~0#1;main_~b~0#1 := 1 + main_~b~0#1;havoc main_#t~pre4#1; 202#L21-3 assume !!(main_~b~0#1 < 6); 201#L21-2 main_#t~pre4#1 := 1 + main_~b~0#1;main_~b~0#1 := 1 + main_~b~0#1;havoc main_#t~pre4#1; 200#L21-3 assume !!(main_~b~0#1 < 6); 199#L21-2 main_#t~pre4#1 := 1 + main_~b~0#1;main_~b~0#1 := 1 + main_~b~0#1;havoc main_#t~pre4#1; 198#L21-3 assume !!(main_~b~0#1 < 6); 197#L21-2 main_#t~pre4#1 := 1 + main_~b~0#1;main_~b~0#1 := 1 + main_~b~0#1;havoc main_#t~pre4#1; 196#L21-3 assume !(main_~b~0#1 < 6); 192#L20-2 main_#t~pre5#1 := 1 + main_~a~0#1;main_~a~0#1 := 1 + main_~a~0#1;havoc main_#t~pre5#1; 190#L20-3 [2024-11-20 22:42:18,338 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:42:18,338 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 4 times [2024-11-20 22:42:18,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:42:18,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811898363] [2024-11-20 22:42:18,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:42:18,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:42:18,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:42:18,348 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 22:42:18,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:42:18,371 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 22:42:18,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:42:18,371 INFO L85 PathProgramCache]: Analyzing trace with hash 1719812477, now seen corresponding path program 3 times [2024-11-20 22:42:18,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:42:18,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346739961] [2024-11-20 22:42:18,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:42:18,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:42:18,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:42:18,385 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 22:42:18,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:42:18,407 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 22:42:18,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:42:18,409 INFO L85 PathProgramCache]: Analyzing trace with hash 212205947, now seen corresponding path program 1 times [2024-11-20 22:42:18,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:42:18,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346353795] [2024-11-20 22:42:18,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:42:18,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:42:18,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:42:18,427 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 22:42:18,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:42:18,442 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 22:42:18,576 INFO L204 LassoAnalysis]: Preferences: [2024-11-20 22:42:18,577 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-20 22:42:18,577 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-20 22:42:18,578 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-20 22:42:18,578 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-20 22:42:18,578 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:42:18,578 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-20 22:42:18,578 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-20 22:42:18,578 INFO L132 ssoRankerPreferences]: Filename of dumped script: nested_2.c_Iteration4_Loop [2024-11-20 22:42:18,579 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-20 22:42:18,579 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-20 22:42:18,592 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:42:18,602 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:42:18,605 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:42:18,608 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:42:18,649 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-20 22:42:18,650 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-20 22:42:18,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:42:18,657 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:42:18,660 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-20 22:42:18,662 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-11-20 22:42:18,663 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-20 22:42:18,663 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-20 22:42:18,681 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 [2024-11-20 22:42:18,682 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:42:18,682 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:42:18,683 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-20 22:42:18,684 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-11-20 22:42:18,685 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-20 22:42:18,685 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-20 22:42:18,711 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-20 22:42:18,716 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2024-11-20 22:42:18,717 INFO L204 LassoAnalysis]: Preferences: [2024-11-20 22:42:18,717 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-20 22:42:18,717 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-20 22:42:18,717 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-20 22:42:18,717 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-20 22:42:18,717 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:42:18,717 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-20 22:42:18,717 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-20 22:42:18,717 INFO L132 ssoRankerPreferences]: Filename of dumped script: nested_2.c_Iteration4_Loop [2024-11-20 22:42:18,717 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-20 22:42:18,717 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-20 22:42:18,718 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:42:18,721 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:42:18,729 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:42:18,732 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:42:18,767 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-20 22:42:18,771 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-20 22:42:18,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:42:18,773 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:42:18,775 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-20 22:42:18,777 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-11-20 22:42:18,778 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-20 22:42:18,793 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-20 22:42:18,793 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-20 22:42:18,794 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-20 22:42:18,794 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-20 22:42:18,794 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-20 22:42:18,796 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-20 22:42:18,796 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-20 22:42:18,799 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-20 22:42:18,807 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2024-11-20 22:42:18,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:42:18,807 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:42:18,810 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-20 22:42:18,811 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-11-20 22:42:18,812 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-20 22:42:18,826 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-20 22:42:18,826 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-20 22:42:18,826 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-20 22:42:18,827 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-20 22:42:18,827 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-20 22:42:18,828 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-20 22:42:18,828 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-20 22:42:18,831 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-20 22:42:18,836 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-20 22:42:18,836 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-20 22:42:18,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:42:18,838 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:42:18,840 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-20 22:42:18,843 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-11-20 22:42:18,844 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-20 22:42:18,845 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-20 22:42:18,845 INFO L474 LassoAnalysis]: Proved termination. [2024-11-20 22:42:18,845 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~a~0#1) = -2*ULTIMATE.start_main_~a~0#1 + 11 Supporting invariants [] [2024-11-20 22:42:18,853 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2024-11-20 22:42:18,856 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-20 22:42:18,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:42:18,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:42:18,899 INFO L255 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-20 22:42:18,900 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 22:42:18,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:42:18,916 INFO L255 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-20 22:42:18,917 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 22:42:19,051 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-20 22:42:19,056 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 [2024-11-20 22:42:19,058 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 18 transitions. cyclomatic complexity: 2 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) [2024-11-20 22:42:19,093 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 18 transitions. cyclomatic complexity: 2. 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 32 states and 35 transitions. Complement of second has 4 states. [2024-11-20 22:42:19,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-20 22:42:19,096 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) [2024-11-20 22:42:19,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2024-11-20 22:42:19,099 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 2 letters. Loop has 15 letters. [2024-11-20 22:42:19,100 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-20 22:42:19,100 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 17 letters. Loop has 15 letters. [2024-11-20 22:42:19,100 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-20 22:42:19,100 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 2 letters. Loop has 30 letters. [2024-11-20 22:42:19,101 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-20 22:42:19,101 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 35 transitions. [2024-11-20 22:42:19,102 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-20 22:42:19,103 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 31 states and 34 transitions. [2024-11-20 22:42:19,103 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2024-11-20 22:42:19,103 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2024-11-20 22:42:19,103 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 34 transitions. [2024-11-20 22:42:19,103 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-20 22:42:19,103 INFO L218 hiAutomatonCegarLoop]: Abstraction has 31 states and 34 transitions. [2024-11-20 22:42:19,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 34 transitions. [2024-11-20 22:42:19,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 20. [2024-11-20 22:42:19,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 20 states have (on average 1.15) internal successors, (23), 19 states have internal predecessors, (23), 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) [2024-11-20 22:42:19,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2024-11-20 22:42:19,106 INFO L240 hiAutomatonCegarLoop]: Abstraction has 20 states and 23 transitions. [2024-11-20 22:42:19,106 INFO L425 stractBuchiCegarLoop]: Abstraction has 20 states and 23 transitions. [2024-11-20 22:42:19,106 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-11-20 22:42:19,106 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 23 transitions. [2024-11-20 22:42:19,106 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-20 22:42:19,106 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-20 22:42:19,106 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-20 22:42:19,107 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-20 22:42:19,107 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-20 22:42:19,107 INFO L745 eck$LassoCheckResult]: Stem: 314#$Ultimate##0 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(11, 2);call #Ultimate.allocInit(12, 3); 315#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~pre4#1, main_#t~pre5#1, main_~a~0#1, main_~b~0#1;main_~a~0#1 := 6;main_~b~0#1 := 6;main_~a~0#1 := 0; 311#L20-3 assume !!(main_~a~0#1 < 6);main_~b~0#1 := 0; 307#L21-3 [2024-11-20 22:42:19,107 INFO L747 eck$LassoCheckResult]: Loop: 307#L21-3 assume !!(main_~b~0#1 < 6); 308#L21-2 main_#t~pre4#1 := 1 + main_~b~0#1;main_~b~0#1 := 1 + main_~b~0#1;havoc main_#t~pre4#1; 307#L21-3 [2024-11-20 22:42:19,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:42:19,107 INFO L85 PathProgramCache]: Analyzing trace with hash 29863, now seen corresponding path program 1 times [2024-11-20 22:42:19,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:42:19,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283358491] [2024-11-20 22:42:19,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:42:19,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:42:19,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:42:19,114 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 22:42:19,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:42:19,127 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 22:42:19,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:42:19,128 INFO L85 PathProgramCache]: Analyzing trace with hash 1539, now seen corresponding path program 1 times [2024-11-20 22:42:19,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:42:19,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339863571] [2024-11-20 22:42:19,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:42:19,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:42:19,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:42:19,136 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 22:42:19,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:42:19,140 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 22:42:19,140 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:42:19,140 INFO L85 PathProgramCache]: Analyzing trace with hash 28698921, now seen corresponding path program 1 times [2024-11-20 22:42:19,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:42:19,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358307130] [2024-11-20 22:42:19,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:42:19,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:42:19,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:42:19,148 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 22:42:19,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:42:19,155 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 22:42:19,176 INFO L204 LassoAnalysis]: Preferences: [2024-11-20 22:42:19,176 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-20 22:42:19,176 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-20 22:42:19,176 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-20 22:42:19,176 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-20 22:42:19,176 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:42:19,177 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-20 22:42:19,177 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-20 22:42:19,177 INFO L132 ssoRankerPreferences]: Filename of dumped script: nested_2.c_Iteration5_Loop [2024-11-20 22:42:19,177 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-20 22:42:19,177 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-20 22:42:19,177 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:42:19,183 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:42:19,204 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-20 22:42:19,204 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-20 22:42:19,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:42:19,205 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:42:19,208 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-20 22:42:19,210 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-11-20 22:42:19,212 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-20 22:42:19,212 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-20 22:42:19,232 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2024-11-20 22:42:19,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:42:19,233 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:42:19,235 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-20 22:42:19,237 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-11-20 22:42:19,238 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-20 22:42:19,238 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-20 22:42:19,268 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-20 22:42:19,274 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2024-11-20 22:42:19,275 INFO L204 LassoAnalysis]: Preferences: [2024-11-20 22:42:19,275 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-20 22:42:19,275 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-20 22:42:19,275 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-20 22:42:19,275 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-20 22:42:19,275 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:42:19,276 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-20 22:42:19,276 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-20 22:42:19,276 INFO L132 ssoRankerPreferences]: Filename of dumped script: nested_2.c_Iteration5_Loop [2024-11-20 22:42:19,276 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-20 22:42:19,276 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-20 22:42:19,278 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:42:19,281 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:42:19,305 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-20 22:42:19,305 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-20 22:42:19,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:42:19,306 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:42:19,308 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-20 22:42:19,309 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-11-20 22:42:19,310 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-20 22:42:19,321 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-20 22:42:19,321 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-20 22:42:19,321 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-20 22:42:19,321 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-20 22:42:19,321 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-20 22:42:19,322 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-20 22:42:19,322 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-20 22:42:19,323 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-20 22:42:19,329 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2024-11-20 22:42:19,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:42:19,329 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:42:19,330 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-20 22:42:19,332 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-11-20 22:42:19,333 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-20 22:42:19,344 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-20 22:42:19,344 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-20 22:42:19,344 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-20 22:42:19,344 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-20 22:42:19,344 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-20 22:42:19,345 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-20 22:42:19,345 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-20 22:42:19,348 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-20 22:42:19,351 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-20 22:42:19,351 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-20 22:42:19,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:42:19,352 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:42:19,353 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-20 22:42:19,354 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-11-20 22:42:19,356 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-20 22:42:19,356 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-20 22:42:19,356 INFO L474 LassoAnalysis]: Proved termination. [2024-11-20 22:42:19,356 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~b~0#1) = -2*ULTIMATE.start_main_~b~0#1 + 11 Supporting invariants [] [2024-11-20 22:42:19,363 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2024-11-20 22:42:19,363 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-20 22:42:19,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:42:19,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:42:19,389 INFO L255 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-20 22:42:19,389 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 22:42:19,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:42:19,398 WARN L253 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-20 22:42:19,398 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 22:42:19,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:42:19,414 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 [2024-11-20 22:42:19,414 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 23 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 22:42:19,443 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states and 23 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 47 states and 54 transitions. Complement of second has 7 states. [2024-11-20 22:42:19,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-11-20 22:42:19,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 22:42:19,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7 transitions. [2024-11-20 22:42:19,446 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 3 letters. Loop has 2 letters. [2024-11-20 22:42:19,446 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-20 22:42:19,446 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 5 letters. Loop has 2 letters. [2024-11-20 22:42:19,446 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-20 22:42:19,446 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 3 letters. Loop has 4 letters. [2024-11-20 22:42:19,446 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-20 22:42:19,446 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 47 states and 54 transitions. [2024-11-20 22:42:19,451 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-20 22:42:19,452 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 47 states to 35 states and 39 transitions. [2024-11-20 22:42:19,453 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2024-11-20 22:42:19,453 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2024-11-20 22:42:19,453 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 39 transitions. [2024-11-20 22:42:19,453 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-20 22:42:19,454 INFO L218 hiAutomatonCegarLoop]: Abstraction has 35 states and 39 transitions. [2024-11-20 22:42:19,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states and 39 transitions. [2024-11-20 22:42:19,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 20. [2024-11-20 22:42:19,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 20 states have (on average 1.1) internal successors, (22), 19 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 22:42:19,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2024-11-20 22:42:19,458 INFO L240 hiAutomatonCegarLoop]: Abstraction has 20 states and 22 transitions. [2024-11-20 22:42:19,458 INFO L425 stractBuchiCegarLoop]: Abstraction has 20 states and 22 transitions. [2024-11-20 22:42:19,458 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-11-20 22:42:19,458 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 22 transitions. [2024-11-20 22:42:19,459 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-20 22:42:19,459 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-20 22:42:19,459 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-20 22:42:19,460 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [6, 6, 2, 1, 1, 1, 1] [2024-11-20 22:42:19,461 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-20 22:42:19,461 INFO L745 eck$LassoCheckResult]: Stem: 420#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(11, 2);call #Ultimate.allocInit(12, 3); 421#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~pre4#1, main_#t~pre5#1, main_~a~0#1, main_~b~0#1;main_~a~0#1 := 6;main_~b~0#1 := 6;main_~a~0#1 := 0; 418#L20-3 assume !!(main_~a~0#1 < 6);main_~b~0#1 := 0; 419#L21-3 assume !!(main_~b~0#1 < 6); 422#L21-2 main_#t~pre4#1 := 1 + main_~b~0#1;main_~b~0#1 := 1 + main_~b~0#1;havoc main_#t~pre4#1; 414#L21-3 assume !!(main_~b~0#1 < 6); 415#L21-2 main_#t~pre4#1 := 1 + main_~b~0#1;main_~b~0#1 := 1 + main_~b~0#1;havoc main_#t~pre4#1; 431#L21-3 assume !!(main_~b~0#1 < 6); 430#L21-2 main_#t~pre4#1 := 1 + main_~b~0#1;main_~b~0#1 := 1 + main_~b~0#1;havoc main_#t~pre4#1; 429#L21-3 assume !!(main_~b~0#1 < 6); 428#L21-2 main_#t~pre4#1 := 1 + main_~b~0#1;main_~b~0#1 := 1 + main_~b~0#1;havoc main_#t~pre4#1; 427#L21-3 assume !!(main_~b~0#1 < 6); 426#L21-2 main_#t~pre4#1 := 1 + main_~b~0#1;main_~b~0#1 := 1 + main_~b~0#1;havoc main_#t~pre4#1; 425#L21-3 assume !!(main_~b~0#1 < 6); 424#L21-2 main_#t~pre4#1 := 1 + main_~b~0#1;main_~b~0#1 := 1 + main_~b~0#1;havoc main_#t~pre4#1; 423#L21-3 assume !(main_~b~0#1 < 6); 416#L20-2 main_#t~pre5#1 := 1 + main_~a~0#1;main_~a~0#1 := 1 + main_~a~0#1;havoc main_#t~pre5#1; 417#L20-3 assume !!(main_~a~0#1 < 6);main_~b~0#1 := 0; 412#L21-3 [2024-11-20 22:42:19,461 INFO L747 eck$LassoCheckResult]: Loop: 412#L21-3 assume !!(main_~b~0#1 < 6); 413#L21-2 main_#t~pre4#1 := 1 + main_~b~0#1;main_~b~0#1 := 1 + main_~b~0#1;havoc main_#t~pre4#1; 412#L21-3 [2024-11-20 22:42:19,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:42:19,462 INFO L85 PathProgramCache]: Analyzing trace with hash -2011550225, now seen corresponding path program 2 times [2024-11-20 22:42:19,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:42:19,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254131315] [2024-11-20 22:42:19,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:42:19,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:42:19,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:42:19,481 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 22:42:19,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:42:19,492 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 22:42:19,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:42:19,497 INFO L85 PathProgramCache]: Analyzing trace with hash 1539, now seen corresponding path program 2 times [2024-11-20 22:42:19,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:42:19,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240917955] [2024-11-20 22:42:19,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:42:19,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:42:19,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:42:19,501 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 22:42:19,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:42:19,505 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 22:42:19,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:42:19,506 INFO L85 PathProgramCache]: Analyzing trace with hash -364482447, now seen corresponding path program 3 times [2024-11-20 22:42:19,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:42:19,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716816850] [2024-11-20 22:42:19,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:42:19,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:42:19,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:42:19,521 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 22:42:19,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:42:19,535 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 22:42:19,553 INFO L204 LassoAnalysis]: Preferences: [2024-11-20 22:42:19,553 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-20 22:42:19,553 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-20 22:42:19,553 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-20 22:42:19,553 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-20 22:42:19,553 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:42:19,553 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-20 22:42:19,553 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-20 22:42:19,553 INFO L132 ssoRankerPreferences]: Filename of dumped script: nested_2.c_Iteration6_Loop [2024-11-20 22:42:19,553 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-20 22:42:19,553 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-20 22:42:19,554 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:42:19,562 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:42:19,580 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-20 22:42:19,580 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-20 22:42:19,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:42:19,581 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:42:19,583 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-20 22:42:19,584 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-11-20 22:42:19,586 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-20 22:42:19,586 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-20 22:42:19,606 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2024-11-20 22:42:19,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:42:19,607 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:42:19,609 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-20 22:42:19,611 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-11-20 22:42:19,612 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-20 22:42:19,612 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-20 22:42:19,639 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-20 22:42:19,645 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2024-11-20 22:42:19,646 INFO L204 LassoAnalysis]: Preferences: [2024-11-20 22:42:19,646 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-20 22:42:19,646 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-20 22:42:19,646 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-20 22:42:19,646 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-20 22:42:19,646 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:42:19,646 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-20 22:42:19,646 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-20 22:42:19,646 INFO L132 ssoRankerPreferences]: Filename of dumped script: nested_2.c_Iteration6_Loop [2024-11-20 22:42:19,646 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-20 22:42:19,646 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-20 22:42:19,647 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:42:19,653 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:42:19,675 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-20 22:42:19,675 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-20 22:42:19,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:42:19,675 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:42:19,676 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-20 22:42:19,677 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-11-20 22:42:19,679 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-20 22:42:19,689 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-20 22:42:19,689 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-20 22:42:19,689 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-20 22:42:19,689 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-20 22:42:19,689 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-20 22:42:19,690 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-20 22:42:19,690 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-20 22:42:19,692 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-20 22:42:19,694 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-20 22:42:19,695 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-20 22:42:19,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:42:19,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:42:19,698 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-20 22:42:19,699 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2024-11-20 22:42:19,699 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-20 22:42:19,699 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-20 22:42:19,700 INFO L474 LassoAnalysis]: Proved termination. [2024-11-20 22:42:19,700 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~b~0#1) = -2*ULTIMATE.start_main_~b~0#1 + 11 Supporting invariants [] [2024-11-20 22:42:19,708 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2024-11-20 22:42:19,709 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-20 22:42:19,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:42:19,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:42:19,736 INFO L255 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-20 22:42:19,737 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 22:42:19,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:42:19,769 WARN L253 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-20 22:42:19,769 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 22:42:19,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:42:19,783 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 [2024-11-20 22:42:19,784 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 22 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 22:42:19,808 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states and 22 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 43 states and 48 transitions. Complement of second has 7 states. [2024-11-20 22:42:19,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-11-20 22:42:19,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 22:42:19,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7 transitions. [2024-11-20 22:42:19,810 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 18 letters. Loop has 2 letters. [2024-11-20 22:42:19,810 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-20 22:42:19,810 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-20 22:42:19,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:42:19,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:42:19,831 INFO L255 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-20 22:42:19,832 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 22:42:19,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:42:19,862 WARN L253 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-20 22:42:19,863 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 22:42:19,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:42:19,879 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-20 22:42:19,879 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 22 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 22:42:19,896 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states and 22 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 43 states and 48 transitions. Complement of second has 7 states. [2024-11-20 22:42:19,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-11-20 22:42:19,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 22:42:19,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7 transitions. [2024-11-20 22:42:19,897 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 18 letters. Loop has 2 letters. [2024-11-20 22:42:19,897 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-20 22:42:19,897 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-20 22:42:19,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:42:19,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:42:19,926 INFO L255 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-20 22:42:19,927 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 22:42:19,953 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2024-11-20 22:42:19,970 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2024-11-20 22:42:19,984 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2024-11-20 22:42:19,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:42:19,993 WARN L253 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-20 22:42:19,993 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 22:42:20,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:42:20,033 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-20 22:42:20,033 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 22 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 22:42:20,069 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states and 22 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 30 states and 34 transitions. Complement of second has 6 states. [2024-11-20 22:42:20,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-11-20 22:42:20,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 22:42:20,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2024-11-20 22:42:20,070 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 18 letters. Loop has 2 letters. [2024-11-20 22:42:20,071 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-20 22:42:20,071 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 20 letters. Loop has 2 letters. [2024-11-20 22:42:20,071 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-20 22:42:20,071 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 18 letters. Loop has 4 letters. [2024-11-20 22:42:20,071 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-20 22:42:20,071 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 34 transitions. [2024-11-20 22:42:20,073 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-20 22:42:20,074 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 0 states and 0 transitions. [2024-11-20 22:42:20,074 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-20 22:42:20,074 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-20 22:42:20,074 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-20 22:42:20,074 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-20 22:42:20,074 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-20 22:42:20,074 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-20 22:42:20,074 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-20 22:42:20,074 INFO L332 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2024-11-20 22:42:20,074 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-11-20 22:42:20,074 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-20 22:42:20,074 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-11-20 22:42:20,081 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 10:42:20 BoogieIcfgContainer [2024-11-20 22:42:20,081 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-20 22:42:20,082 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-20 22:42:20,082 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-20 22:42:20,082 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-20 22:42:20,082 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:42:17" (3/4) ... [2024-11-20 22:42:20,084 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-20 22:42:20,085 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-20 22:42:20,086 INFO L158 Benchmark]: Toolchain (without parser) took 3488.42ms. Allocated memory was 176.2MB in the beginning and 226.5MB in the end (delta: 50.3MB). Free memory was 142.1MB in the beginning and 185.1MB in the end (delta: -43.0MB). Peak memory consumption was 6.7MB. Max. memory is 16.1GB. [2024-11-20 22:42:20,086 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 176.2MB. Free memory is still 145.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-20 22:42:20,086 INFO L158 Benchmark]: CACSL2BoogieTranslator took 263.96ms. Allocated memory is still 176.2MB. Free memory was 142.1MB in the beginning and 130.3MB in the end (delta: 11.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-20 22:42:20,086 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.13ms. Allocated memory is still 176.2MB. Free memory was 130.3MB in the beginning and 129.0MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-20 22:42:20,087 INFO L158 Benchmark]: Boogie Preprocessor took 28.30ms. Allocated memory is still 176.2MB. Free memory was 129.0MB in the beginning and 126.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-20 22:42:20,087 INFO L158 Benchmark]: RCFGBuilder took 283.42ms. Allocated memory is still 176.2MB. Free memory was 126.9MB in the beginning and 117.8MB in the end (delta: 9.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-20 22:42:20,087 INFO L158 Benchmark]: BuchiAutomizer took 2875.81ms. Allocated memory was 176.2MB in the beginning and 226.5MB in the end (delta: 50.3MB). Free memory was 117.8MB in the beginning and 185.1MB in the end (delta: -67.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-20 22:42:20,087 INFO L158 Benchmark]: Witness Printer took 3.68ms. Allocated memory is still 226.5MB. Free memory is still 185.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-20 22:42:20,088 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 176.2MB. Free memory is still 145.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 263.96ms. Allocated memory is still 176.2MB. Free memory was 142.1MB in the beginning and 130.3MB in the end (delta: 11.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.13ms. Allocated memory is still 176.2MB. Free memory was 130.3MB in the beginning and 129.0MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 28.30ms. Allocated memory is still 176.2MB. Free memory was 129.0MB in the beginning and 126.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 283.42ms. Allocated memory is still 176.2MB. Free memory was 126.9MB in the beginning and 117.8MB in the end (delta: 9.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 2875.81ms. Allocated memory was 176.2MB in the beginning and 226.5MB in the end (delta: 50.3MB). Free memory was 117.8MB in the beginning and 185.1MB in the end (delta: -67.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.68ms. Allocated memory is still 226.5MB. Free memory is still 185.1MB. 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 6 terminating modules (3 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function (((long long) -2 * a) + 11) and consists of 3 locations. One deterministic module has affine ranking function (((long long) -2 * b) + 11) and consists of 4 locations. One nondeterministic module has affine ranking function (((long long) -2 * b) + 11) and consists of 4 locations. 3 modules have a trivial ranking function, the largest among these consists of 8 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.8s and 7 iterations. TraceHistogramMax:6. Analysis of lassos took 1.8s. Construction of modules took 0.1s. Büchi inclusion checks took 0.7s. Highest rank in rank-based complementation 3. Minimization of det autom 4. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 27 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 36/36 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 45 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 40 mSDsluCounter, 70 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 21 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 68 IncrementalHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 49 mSDtfsCounter, 68 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI3 SFLT3 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital11 mio100 ax100 hnf100 lsp92 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 26ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-11-20 22:42:20,105 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-20 22:42:20,307 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-20 22:42:20,508 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE