./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-restricted-15/Ex08.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-restricted-15/Ex08.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash e9f5cf3ddf7f2bce97ea02caa876a19793443837e6b09c62b997f759c9b40cc6 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 08:03:29,521 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 08:03:29,569 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-11-17 08:03:29,573 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 08:03:29,574 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 08:03:29,574 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2024-11-17 08:03:29,596 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 08:03:29,597 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 08:03:29,597 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 08:03:29,600 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 08:03:29,600 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 08:03:29,600 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 08:03:29,600 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 08:03:29,601 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 08:03:29,601 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-17 08:03:29,601 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-17 08:03:29,602 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-17 08:03:29,602 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-17 08:03:29,603 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-17 08:03:29,603 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-17 08:03:29,603 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 08:03:29,603 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-17 08:03:29,603 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 08:03:29,603 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 08:03:29,604 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-17 08:03:29,604 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-17 08:03:29,604 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-17 08:03:29,604 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 08:03:29,604 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 08:03:29,604 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-17 08:03:29,605 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-17 08:03:29,605 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 08:03:29,605 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 08:03:29,605 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 08:03:29,605 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 08:03:29,605 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 08:03:29,606 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-17 08:03:29,606 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e9f5cf3ddf7f2bce97ea02caa876a19793443837e6b09c62b997f759c9b40cc6 [2024-11-17 08:03:29,807 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 08:03:29,828 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 08:03:29,830 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 08:03:29,831 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 08:03:29,831 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 08:03:29,832 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/Ex08.c [2024-11-17 08:03:30,990 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 08:03:31,146 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 08:03:31,146 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/Ex08.c [2024-11-17 08:03:31,154 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd9a6ffb9/0b7e786dbaf04e718ad28f53706b929c/FLAG32f35d994 [2024-11-17 08:03:31,565 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd9a6ffb9/0b7e786dbaf04e718ad28f53706b929c [2024-11-17 08:03:31,567 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 08:03:31,568 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 08:03:31,569 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 08:03:31,571 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 08:03:31,575 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 08:03:31,575 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 08:03:31" (1/1) ... [2024-11-17 08:03:31,576 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5408586d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:03:31, skipping insertion in model container [2024-11-17 08:03:31,577 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 08:03:31" (1/1) ... [2024-11-17 08:03:31,589 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 08:03:31,709 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 08:03:31,714 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 08:03:31,722 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 08:03:31,733 INFO L204 MainTranslator]: Completed translation [2024-11-17 08:03:31,733 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:03:31 WrapperNode [2024-11-17 08:03:31,733 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 08:03:31,734 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 08:03:31,734 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 08:03:31,734 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 08:03:31,739 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:03:31" (1/1) ... [2024-11-17 08:03:31,741 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:03:31" (1/1) ... [2024-11-17 08:03:31,751 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 20 [2024-11-17 08:03:31,751 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 08:03:31,751 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 08:03:31,751 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 08:03:31,752 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 08:03:31,762 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:03:31" (1/1) ... [2024-11-17 08:03:31,762 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:03:31" (1/1) ... [2024-11-17 08:03:31,762 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:03:31" (1/1) ... [2024-11-17 08:03:31,766 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-17 08:03:31,766 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:03:31" (1/1) ... [2024-11-17 08:03:31,767 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:03:31" (1/1) ... [2024-11-17 08:03:31,767 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:03:31" (1/1) ... [2024-11-17 08:03:31,768 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:03:31" (1/1) ... [2024-11-17 08:03:31,768 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:03:31" (1/1) ... [2024-11-17 08:03:31,768 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:03:31" (1/1) ... [2024-11-17 08:03:31,769 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 08:03:31,770 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 08:03:31,770 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 08:03:31,770 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 08:03:31,770 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:03:31" (1/1) ... [2024-11-17 08:03:31,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:03:31,781 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:03:31,795 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:03:31,797 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-17 08:03:31,834 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 08:03:31,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 08:03:31,905 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 08:03:31,907 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 08:03:31,985 INFO L? ?]: Removed 3 outVars from TransFormulas that were not future-live. [2024-11-17 08:03:31,985 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 08:03:32,007 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 08:03:32,007 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 08:03:32,008 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 08:03:32 BoogieIcfgContainer [2024-11-17 08:03:32,008 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 08:03:32,008 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-17 08:03:32,008 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-17 08:03:32,024 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-17 08:03:32,025 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-17 08:03:32,025 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 17.11 08:03:31" (1/3) ... [2024-11-17 08:03:32,026 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@75e066 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.11 08:03:32, skipping insertion in model container [2024-11-17 08:03:32,026 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-17 08:03:32,026 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:03:31" (2/3) ... [2024-11-17 08:03:32,031 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@75e066 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.11 08:03:32, skipping insertion in model container [2024-11-17 08:03:32,031 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-17 08:03:32,032 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 08:03:32" (3/3) ... [2024-11-17 08:03:32,037 INFO L332 chiAutomizerObserver]: Analyzing ICFG Ex08.c [2024-11-17 08:03:32,086 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-17 08:03:32,086 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-17 08:03:32,086 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-17 08:03:32,086 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-17 08:03:32,086 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-17 08:03:32,086 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-17 08:03:32,087 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-17 08:03:32,087 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-17 08:03:32,096 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 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) [2024-11-17 08:03:32,107 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-17 08:03:32,107 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:03:32,108 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:03:32,111 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-17 08:03:32,111 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2024-11-17 08:03:32,111 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-17 08:03:32,111 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 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) [2024-11-17 08:03:32,112 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-17 08:03:32,112 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:03:32,112 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:03:32,112 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-17 08:03:32,112 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2024-11-17 08:03:32,117 INFO L745 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 6#ULTIMATE.init_returnLabel#1true assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 10#L11true [2024-11-17 08:03:32,117 INFO L747 eck$LassoCheckResult]: Loop: 10#L11true assume true; 5#L11-1true assume !!(main_~i~0#1 > 0); 11#L12true assume 1 == main_~i~0#1;main_~up~0#1 := 1; 9#L15true assume 10 == main_~i~0#1;main_~up~0#1 := 0; 3#L18true assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 10#L11true [2024-11-17 08:03:32,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:03:32,121 INFO L85 PathProgramCache]: Analyzing trace with hash 1408, now seen corresponding path program 1 times [2024-11-17 08:03:32,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:03:32,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751061863] [2024-11-17 08:03:32,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:03:32,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:03:32,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:03:32,179 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:03:32,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:03:32,197 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:03:32,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:03:32,200 INFO L85 PathProgramCache]: Analyzing trace with hash 39092677, now seen corresponding path program 1 times [2024-11-17 08:03:32,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:03:32,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610106569] [2024-11-17 08:03:32,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:03:32,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:03:32,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:03:32,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:03:32,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 08:03:32,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610106569] [2024-11-17 08:03:32,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610106569] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 08:03:32,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 08:03:32,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 08:03:32,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198544071] [2024-11-17 08:03:32,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 08:03:32,266 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-17 08:03:32,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 08:03:32,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 08:03:32,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 08:03:32,289 INFO L87 Difference]: Start difference. First operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 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) 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) [2024-11-17 08:03:32,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 08:03:32,321 INFO L93 Difference]: Finished difference Result 16 states and 22 transitions. [2024-11-17 08:03:32,322 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 22 transitions. [2024-11-17 08:03:32,323 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2024-11-17 08:03:32,328 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 12 states and 17 transitions. [2024-11-17 08:03:32,328 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2024-11-17 08:03:32,329 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2024-11-17 08:03:32,329 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 17 transitions. [2024-11-17 08:03:32,329 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-17 08:03:32,329 INFO L218 hiAutomatonCegarLoop]: Abstraction has 12 states and 17 transitions. [2024-11-17 08:03:32,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 17 transitions. [2024-11-17 08:03:32,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2024-11-17 08:03:32,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 11 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:03:32,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 17 transitions. [2024-11-17 08:03:32,348 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12 states and 17 transitions. [2024-11-17 08:03:32,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 08:03:32,352 INFO L425 stractBuchiCegarLoop]: Abstraction has 12 states and 17 transitions. [2024-11-17 08:03:32,352 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-17 08:03:32,352 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 17 transitions. [2024-11-17 08:03:32,353 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2024-11-17 08:03:32,353 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:03:32,353 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:03:32,353 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-17 08:03:32,353 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2024-11-17 08:03:32,353 INFO L745 eck$LassoCheckResult]: Stem: 40#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 41#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 37#L11 [2024-11-17 08:03:32,354 INFO L747 eck$LassoCheckResult]: Loop: 37#L11 assume true; 38#L11-1 assume !!(main_~i~0#1 > 0); 39#L12 assume 1 == main_~i~0#1;main_~up~0#1 := 1; 42#L15 assume !(10 == main_~i~0#1); 43#L18 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 37#L11 [2024-11-17 08:03:32,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:03:32,354 INFO L85 PathProgramCache]: Analyzing trace with hash 1408, now seen corresponding path program 2 times [2024-11-17 08:03:32,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:03:32,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286685285] [2024-11-17 08:03:32,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:03:32,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:03:32,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:03:32,358 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:03:32,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:03:32,361 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:03:32,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:03:32,362 INFO L85 PathProgramCache]: Analyzing trace with hash 39092708, now seen corresponding path program 1 times [2024-11-17 08:03:32,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:03:32,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660865042] [2024-11-17 08:03:32,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:03:32,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:03:32,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:03:32,368 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:03:32,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:03:32,371 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:03:32,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:03:32,373 INFO L85 PathProgramCache]: Analyzing trace with hash 1665602501, now seen corresponding path program 1 times [2024-11-17 08:03:32,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:03:32,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647526024] [2024-11-17 08:03:32,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:03:32,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:03:32,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:03:32,378 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:03:32,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:03:32,385 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:03:32,441 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:03:32,442 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:03:32,442 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:03:32,442 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:03:32,442 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-17 08:03:32,442 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:03:32,442 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:03:32,442 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:03:32,443 INFO L132 ssoRankerPreferences]: Filename of dumped script: Ex08.c_Iteration2_Loop [2024-11-17 08:03:32,443 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:03:32,443 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:03:32,455 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:03:32,464 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:03:32,468 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:03:32,472 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:03:32,537 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:03:32,538 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-17 08:03:32,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:03:32,539 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:03:32,541 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:03:32,542 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-11-17 08:03:32,544 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:03:32,544 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:03:32,564 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-17 08:03:32,564 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~up~0#1=1} Honda state: {ULTIMATE.start_main_~up~0#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-17 08:03:32,574 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-11-17 08:03:32,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:03:32,575 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:03:32,576 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:03:32,577 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-11-17 08:03:32,578 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:03:32,578 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:03:32,596 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-17 08:03:32,596 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-17 08:03:32,607 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2024-11-17 08:03:32,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:03:32,607 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:03:32,608 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) [2024-11-17 08:03:32,609 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 [2024-11-17 08:03:32,610 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:03:32,610 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:03:32,629 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-17 08:03:32,629 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-17 08:03:32,640 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 [2024-11-17 08:03:32,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:03:32,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:03:32,642 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) [2024-11-17 08:03:32,643 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 [2024-11-17 08:03:32,645 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:03:32,645 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:03:32,668 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 [2024-11-17 08:03:32,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:03:32,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:03:32,670 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) [2024-11-17 08:03:32,670 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 [2024-11-17 08:03:32,671 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-17 08:03:32,671 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:03:32,684 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-17 08:03:32,694 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2024-11-17 08:03:32,694 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:03:32,694 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:03:32,694 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:03:32,694 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:03:32,694 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-17 08:03:32,694 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:03:32,694 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:03:32,694 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:03:32,695 INFO L132 ssoRankerPreferences]: Filename of dumped script: Ex08.c_Iteration2_Loop [2024-11-17 08:03:32,695 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:03:32,695 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:03:32,696 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:03:32,700 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:03:32,702 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:03:32,709 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:03:32,749 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:03:32,753 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-17 08:03:32,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:03:32,755 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:03:32,757 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) [2024-11-17 08:03:32,758 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 [2024-11-17 08:03:32,759 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 [2024-11-17 08:03:32,769 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:03:32,770 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:03:32,770 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:03:32,770 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:03:32,774 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-17 08:03:32,774 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-17 08:03:32,780 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-17 08:03:32,791 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2024-11-17 08:03:32,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:03:32,792 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:03:32,794 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) [2024-11-17 08:03:32,795 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 [2024-11-17 08:03:32,795 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 [2024-11-17 08:03:32,805 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:03:32,806 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:03:32,806 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:03:32,806 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:03:32,810 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-17 08:03:32,810 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-17 08:03:32,814 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-17 08:03:32,824 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2024-11-17 08:03:32,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:03:32,825 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:03:32,825 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) [2024-11-17 08:03:32,826 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 [2024-11-17 08:03:32,827 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 [2024-11-17 08:03:32,837 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:03:32,837 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-17 08:03:32,837 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:03:32,837 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:03:32,837 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:03:32,838 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-17 08:03:32,838 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-17 08:03:32,840 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-17 08:03:32,843 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-17 08:03:32,843 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-17 08:03:32,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:03:32,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:03:32,855 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) [2024-11-17 08:03:32,856 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 [2024-11-17 08:03:32,857 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-17 08:03:32,857 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-17 08:03:32,857 INFO L474 LassoAnalysis]: Proved termination. [2024-11-17 08:03:32,858 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 3 Supporting invariants [] [2024-11-17 08:03:32,868 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2024-11-17 08:03:32,870 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-17 08:03:32,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:03:32,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:03:32,898 INFO L255 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-17 08:03:32,903 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:03:32,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:03:32,916 INFO L255 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-17 08:03:32,917 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:03:32,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:03:32,940 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 [2024-11-17 08:03:32,941 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 17 transitions. cyclomatic complexity: 6 Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 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) [2024-11-17 08:03:32,982 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 17 transitions. cyclomatic complexity: 6. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 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 29 states and 41 transitions. Complement of second has 7 states. [2024-11-17 08:03:32,983 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 [2024-11-17 08:03:32,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 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) [2024-11-17 08:03:32,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2024-11-17 08:03:32,985 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 2 letters. Loop has 5 letters. [2024-11-17 08:03:32,986 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:03:32,986 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 7 letters. Loop has 5 letters. [2024-11-17 08:03:32,986 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:03:32,986 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 2 letters. Loop has 10 letters. [2024-11-17 08:03:32,987 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:03:32,987 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 41 transitions. [2024-11-17 08:03:32,988 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 15 [2024-11-17 08:03:32,989 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 29 states and 41 transitions. [2024-11-17 08:03:32,989 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2024-11-17 08:03:32,989 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2024-11-17 08:03:32,989 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 41 transitions. [2024-11-17 08:03:32,989 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-17 08:03:32,990 INFO L218 hiAutomatonCegarLoop]: Abstraction has 29 states and 41 transitions. [2024-11-17 08:03:32,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 41 transitions. [2024-11-17 08:03:32,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 28. [2024-11-17 08:03:32,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 28 states have (on average 1.4285714285714286) internal successors, (40), 27 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:03:32,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 40 transitions. [2024-11-17 08:03:32,992 INFO L240 hiAutomatonCegarLoop]: Abstraction has 28 states and 40 transitions. [2024-11-17 08:03:32,992 INFO L425 stractBuchiCegarLoop]: Abstraction has 28 states and 40 transitions. [2024-11-17 08:03:32,992 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-17 08:03:32,992 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states and 40 transitions. [2024-11-17 08:03:32,993 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 15 [2024-11-17 08:03:32,993 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:03:32,993 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:03:32,993 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-17 08:03:32,993 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2024-11-17 08:03:32,993 INFO L745 eck$LassoCheckResult]: Stem: 125#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 126#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 131#L11 assume true; 139#L11-1 [2024-11-17 08:03:32,993 INFO L747 eck$LassoCheckResult]: Loop: 139#L11-1 assume !!(main_~i~0#1 > 0); 143#L12 assume !(1 == main_~i~0#1); 144#L15 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 146#L18 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 145#L11 assume true; 139#L11-1 [2024-11-17 08:03:32,994 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:03:32,994 INFO L85 PathProgramCache]: Analyzing trace with hash 43659, now seen corresponding path program 1 times [2024-11-17 08:03:32,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:03:32,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715005980] [2024-11-17 08:03:32,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:03:32,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:03:32,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:03:32,997 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:03:32,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:03:32,998 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:03:32,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:03:32,999 INFO L85 PathProgramCache]: Analyzing trace with hash 38107598, now seen corresponding path program 1 times [2024-11-17 08:03:32,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:03:32,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87923411] [2024-11-17 08:03:32,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:03:32,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:03:33,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:03:33,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:03:33,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 08:03:33,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87923411] [2024-11-17 08:03:33,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87923411] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 08:03:33,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 08:03:33,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 08:03:33,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430972733] [2024-11-17 08:03:33,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 08:03:33,029 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-17 08:03:33,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 08:03:33,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 08:03:33,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 08:03:33,029 INFO L87 Difference]: Start difference. First operand 28 states and 40 transitions. cyclomatic complexity: 15 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) [2024-11-17 08:03:33,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 08:03:33,039 INFO L93 Difference]: Finished difference Result 41 states and 58 transitions. [2024-11-17 08:03:33,039 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 41 states and 58 transitions. [2024-11-17 08:03:33,040 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 20 [2024-11-17 08:03:33,041 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 41 states to 39 states and 54 transitions. [2024-11-17 08:03:33,041 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2024-11-17 08:03:33,041 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2024-11-17 08:03:33,041 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 54 transitions. [2024-11-17 08:03:33,041 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-17 08:03:33,042 INFO L218 hiAutomatonCegarLoop]: Abstraction has 39 states and 54 transitions. [2024-11-17 08:03:33,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states and 54 transitions. [2024-11-17 08:03:33,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 37. [2024-11-17 08:03:33,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 37 states have (on average 1.3783783783783783) internal successors, (51), 36 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:03:33,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 51 transitions. [2024-11-17 08:03:33,049 INFO L240 hiAutomatonCegarLoop]: Abstraction has 37 states and 51 transitions. [2024-11-17 08:03:33,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 08:03:33,050 INFO L425 stractBuchiCegarLoop]: Abstraction has 37 states and 51 transitions. [2024-11-17 08:03:33,050 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-17 08:03:33,050 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 37 states and 51 transitions. [2024-11-17 08:03:33,051 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 20 [2024-11-17 08:03:33,051 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:03:33,051 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:03:33,051 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2024-11-17 08:03:33,051 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2024-11-17 08:03:33,051 INFO L745 eck$LassoCheckResult]: Stem: 204#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 205#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 206#L11 assume true; 218#L11-1 assume !!(main_~i~0#1 > 0); 228#L12 assume !(1 == main_~i~0#1); 224#L15 [2024-11-17 08:03:33,051 INFO L747 eck$LassoCheckResult]: Loop: 224#L15 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 196#L18 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 197#L11 assume true; 230#L11-1 assume !!(main_~i~0#1 > 0); 229#L12 assume !(1 == main_~i~0#1); 224#L15 [2024-11-17 08:03:33,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:03:33,052 INFO L85 PathProgramCache]: Analyzing trace with hash 41956617, now seen corresponding path program 1 times [2024-11-17 08:03:33,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:03:33,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743633082] [2024-11-17 08:03:33,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:03:33,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:03:33,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:03:33,055 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:03:33,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:03:33,057 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:03:33,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:03:33,058 INFO L85 PathProgramCache]: Analyzing trace with hash 33376809, now seen corresponding path program 1 times [2024-11-17 08:03:33,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:03:33,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413758920] [2024-11-17 08:03:33,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:03:33,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:03:33,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:03:33,061 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:03:33,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:03:33,064 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:03:33,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:03:33,064 INFO L85 PathProgramCache]: Analyzing trace with hash 234682913, now seen corresponding path program 1 times [2024-11-17 08:03:33,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:03:33,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906280691] [2024-11-17 08:03:33,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:03:33,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:03:33,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:03:33,074 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:03:33,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:03:33,080 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:03:33,119 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:03:33,120 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:03:33,120 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:03:33,120 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:03:33,120 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-17 08:03:33,120 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:03:33,120 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:03:33,120 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:03:33,120 INFO L132 ssoRankerPreferences]: Filename of dumped script: Ex08.c_Iteration4_Loop [2024-11-17 08:03:33,120 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:03:33,120 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:03:33,121 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:03:33,125 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:03:33,132 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:03:33,135 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:03:33,172 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:03:33,172 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-17 08:03:33,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:03:33,172 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:03:33,174 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) [2024-11-17 08:03:33,175 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 [2024-11-17 08:03:33,180 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:03:33,180 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:03:33,199 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-17 08:03:33,199 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-17 08:03:33,211 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 [2024-11-17 08:03:33,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:03:33,211 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:03:33,213 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) [2024-11-17 08:03:33,214 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 [2024-11-17 08:03:33,215 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:03:33,215 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:03:33,237 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 [2024-11-17 08:03:33,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:03:33,239 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:03:33,241 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) [2024-11-17 08:03:33,241 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 [2024-11-17 08:03:33,242 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-17 08:03:33,242 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:03:33,254 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-17 08:03:33,264 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2024-11-17 08:03:33,264 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:03:33,264 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:03:33,264 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:03:33,264 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:03:33,264 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-17 08:03:33,264 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:03:33,264 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:03:33,264 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:03:33,265 INFO L132 ssoRankerPreferences]: Filename of dumped script: Ex08.c_Iteration4_Loop [2024-11-17 08:03:33,265 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:03:33,265 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:03:33,266 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:03:33,270 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:03:33,276 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:03:33,278 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:03:33,319 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:03:33,319 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-17 08:03:33,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:03:33,320 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:03:33,322 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) [2024-11-17 08:03:33,323 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 [2024-11-17 08:03:33,324 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 [2024-11-17 08:03:33,334 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:03:33,334 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:03:33,334 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:03:33,334 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:03:33,337 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-17 08:03:33,337 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-17 08:03:33,340 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-17 08:03:33,353 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 [2024-11-17 08:03:33,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:03:33,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:03:33,355 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) [2024-11-17 08:03:33,356 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 [2024-11-17 08:03:33,358 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 [2024-11-17 08:03:33,368 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:03:33,377 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-17 08:03:33,377 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:03:33,377 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:03:33,377 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:03:33,378 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-17 08:03:33,378 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-17 08:03:33,380 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-17 08:03:33,384 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-11-17 08:03:33,384 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-17 08:03:33,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:03:33,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:03:33,386 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) [2024-11-17 08:03:33,387 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 [2024-11-17 08:03:33,388 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-17 08:03:33,388 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-17 08:03:33,388 INFO L474 LassoAnalysis]: Proved termination. [2024-11-17 08:03:33,388 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2024-11-17 08:03:33,400 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 [2024-11-17 08:03:33,401 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2024-11-17 08:03:33,402 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-17 08:03:33,421 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:03:33,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:03:33,425 INFO L255 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-17 08:03:33,425 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:03:33,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:03:33,437 INFO L255 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-17 08:03:33,438 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:03:33,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:03:33,494 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-11-17 08:03:33,494 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 37 states and 51 transitions. cyclomatic complexity: 17 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:03:33,530 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 37 states and 51 transitions. cyclomatic complexity: 17. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 101 states and 145 transitions. Complement of second has 7 states. [2024-11-17 08:03:33,530 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 [2024-11-17 08:03:33,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:03:33,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 20 transitions. [2024-11-17 08:03:33,531 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 5 letters. Loop has 5 letters. [2024-11-17 08:03:33,531 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:03:33,531 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 10 letters. Loop has 5 letters. [2024-11-17 08:03:33,532 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:03:33,532 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 5 letters. Loop has 10 letters. [2024-11-17 08:03:33,532 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:03:33,532 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 101 states and 145 transitions. [2024-11-17 08:03:33,535 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 43 [2024-11-17 08:03:33,536 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 101 states to 93 states and 130 transitions. [2024-11-17 08:03:33,536 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 58 [2024-11-17 08:03:33,536 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 63 [2024-11-17 08:03:33,537 INFO L73 IsDeterministic]: Start isDeterministic. Operand 93 states and 130 transitions. [2024-11-17 08:03:33,537 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-17 08:03:33,537 INFO L218 hiAutomatonCegarLoop]: Abstraction has 93 states and 130 transitions. [2024-11-17 08:03:33,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states and 130 transitions. [2024-11-17 08:03:33,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 70. [2024-11-17 08:03:33,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 70 states have (on average 1.4285714285714286) internal successors, (100), 69 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:03:33,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 100 transitions. [2024-11-17 08:03:33,542 INFO L240 hiAutomatonCegarLoop]: Abstraction has 70 states and 100 transitions. [2024-11-17 08:03:33,542 INFO L425 stractBuchiCegarLoop]: Abstraction has 70 states and 100 transitions. [2024-11-17 08:03:33,542 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-11-17 08:03:33,542 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 70 states and 100 transitions. [2024-11-17 08:03:33,543 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 33 [2024-11-17 08:03:33,543 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:03:33,544 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:03:33,544 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2024-11-17 08:03:33,544 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2024-11-17 08:03:33,544 INFO L745 eck$LassoCheckResult]: Stem: 396#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 397#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 398#L11 assume true; 410#L11-1 assume !!(main_~i~0#1 > 0); 420#L12 assume !(1 == main_~i~0#1); 414#L15 assume !(10 == main_~i~0#1); 400#L18 [2024-11-17 08:03:33,544 INFO L747 eck$LassoCheckResult]: Loop: 400#L18 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 451#L11 assume true; 450#L11-1 assume !!(main_~i~0#1 > 0); 441#L12 assume !(1 == main_~i~0#1); 399#L15 assume !(10 == main_~i~0#1); 400#L18 [2024-11-17 08:03:33,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:03:33,545 INFO L85 PathProgramCache]: Analyzing trace with hash 1300655133, now seen corresponding path program 1 times [2024-11-17 08:03:33,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:03:33,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26299393] [2024-11-17 08:03:33,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:03:33,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:03:33,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:03:33,549 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:03:33,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:03:33,553 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:03:33,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:03:33,554 INFO L85 PathProgramCache]: Analyzing trace with hash 32660800, now seen corresponding path program 1 times [2024-11-17 08:03:33,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:03:33,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914806837] [2024-11-17 08:03:33,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:03:33,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:03:33,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:03:33,558 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:03:33,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:03:33,563 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:03:33,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:03:33,563 INFO L85 PathProgramCache]: Analyzing trace with hash -1286135132, now seen corresponding path program 1 times [2024-11-17 08:03:33,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:03:33,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111309282] [2024-11-17 08:03:33,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:03:33,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:03:33,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:03:33,570 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:03:33,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:03:33,574 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:03:33,607 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:03:33,607 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:03:33,607 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:03:33,607 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:03:33,608 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-17 08:03:33,608 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:03:33,608 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:03:33,608 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:03:33,608 INFO L132 ssoRankerPreferences]: Filename of dumped script: Ex08.c_Iteration5_Loop [2024-11-17 08:03:33,608 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:03:33,608 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:03:33,609 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:03:33,615 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:03:33,617 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:03:33,618 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:03:33,696 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:03:33,696 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-17 08:03:33,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:03:33,697 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:03:33,698 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) [2024-11-17 08:03:33,699 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 [2024-11-17 08:03:33,700 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:03:33,700 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:03:33,722 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2024-11-17 08:03:33,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:03:33,722 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:03:33,724 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:03:33,725 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-11-17 08:03:33,725 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-17 08:03:33,725 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:03:33,811 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-17 08:03:33,815 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2024-11-17 08:03:33,815 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:03:33,815 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:03:33,816 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:03:33,816 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:03:33,816 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-17 08:03:33,819 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:03:33,819 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:03:33,819 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:03:33,819 INFO L132 ssoRankerPreferences]: Filename of dumped script: Ex08.c_Iteration5_Loop [2024-11-17 08:03:33,819 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:03:33,819 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:03:33,820 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:03:33,830 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:03:33,833 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:03:33,836 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:03:33,927 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:03:33,927 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-17 08:03:33,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:03:33,927 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:03:33,929 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:03:33,930 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-11-17 08:03:33,931 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 [2024-11-17 08:03:33,941 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:03:33,941 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-17 08:03:33,941 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:03:33,941 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-11-17 08:03:33,941 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:03:33,943 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2024-11-17 08:03:33,943 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-17 08:03:33,946 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-17 08:03:33,947 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-11-17 08:03:33,948 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-17 08:03:33,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:03:33,948 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:03:33,949 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:03:33,951 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-11-17 08:03:33,952 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-17 08:03:33,952 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-17 08:03:33,952 INFO L474 LassoAnalysis]: Proved termination. [2024-11-17 08:03:33,952 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2024-11-17 08:03:33,963 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2024-11-17 08:03:33,964 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-17 08:03:33,974 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:03:33,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:03:33,977 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-17 08:03:33,977 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:03:33,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:03:33,986 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-17 08:03:33,986 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:03:34,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:03:34,015 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-11-17 08:03:34,015 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 70 states and 100 transitions. cyclomatic complexity: 37 Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:03:34,039 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 70 states and 100 transitions. cyclomatic complexity: 37. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 131 states and 181 transitions. Complement of second has 7 states. [2024-11-17 08:03:34,039 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 [2024-11-17 08:03:34,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:03:34,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2024-11-17 08:03:34,040 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 6 letters. Loop has 5 letters. [2024-11-17 08:03:34,040 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:03:34,040 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 11 letters. Loop has 5 letters. [2024-11-17 08:03:34,040 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:03:34,040 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 6 letters. Loop has 10 letters. [2024-11-17 08:03:34,041 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:03:34,041 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 131 states and 181 transitions. [2024-11-17 08:03:34,042 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 33 [2024-11-17 08:03:34,044 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 131 states to 114 states and 158 transitions. [2024-11-17 08:03:34,045 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 59 [2024-11-17 08:03:34,046 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 62 [2024-11-17 08:03:34,046 INFO L73 IsDeterministic]: Start isDeterministic. Operand 114 states and 158 transitions. [2024-11-17 08:03:34,046 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-17 08:03:34,046 INFO L218 hiAutomatonCegarLoop]: Abstraction has 114 states and 158 transitions. [2024-11-17 08:03:34,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states and 158 transitions. [2024-11-17 08:03:34,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 110. [2024-11-17 08:03:34,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 110 states have (on average 1.4) internal successors, (154), 109 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:03:34,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 154 transitions. [2024-11-17 08:03:34,057 INFO L240 hiAutomatonCegarLoop]: Abstraction has 110 states and 154 transitions. [2024-11-17 08:03:34,057 INFO L425 stractBuchiCegarLoop]: Abstraction has 110 states and 154 transitions. [2024-11-17 08:03:34,057 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-11-17 08:03:34,058 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 110 states and 154 transitions. [2024-11-17 08:03:34,058 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 33 [2024-11-17 08:03:34,058 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:03:34,059 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:03:34,059 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1, 1] [2024-11-17 08:03:34,059 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2024-11-17 08:03:34,059 INFO L745 eck$LassoCheckResult]: Stem: 654#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 655#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 656#L11 assume true; 663#L11-1 assume !!(main_~i~0#1 > 0); 730#L12 assume 1 == main_~i~0#1;main_~up~0#1 := 1; 724#L15 assume !(10 == main_~i~0#1); 728#L18 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 726#L11 assume true; 727#L11-1 assume !!(main_~i~0#1 > 0); 731#L12 assume 1 == main_~i~0#1;main_~up~0#1 := 1; 732#L15 assume !(10 == main_~i~0#1); 746#L18 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 738#L11 [2024-11-17 08:03:34,059 INFO L747 eck$LassoCheckResult]: Loop: 738#L11 assume true; 745#L11-1 assume !!(main_~i~0#1 > 0); 742#L12 assume 1 == main_~i~0#1;main_~up~0#1 := 1; 739#L15 assume !(10 == main_~i~0#1); 737#L18 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 738#L11 [2024-11-17 08:03:34,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:03:34,059 INFO L85 PathProgramCache]: Analyzing trace with hash 1308043425, now seen corresponding path program 1 times [2024-11-17 08:03:34,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:03:34,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110912635] [2024-11-17 08:03:34,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:03:34,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:03:34,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:03:34,096 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:03:34,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 08:03:34,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110912635] [2024-11-17 08:03:34,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110912635] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 08:03:34,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 08:03:34,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 08:03:34,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241061236] [2024-11-17 08:03:34,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 08:03:34,097 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-11-17 08:03:34,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:03:34,097 INFO L85 PathProgramCache]: Analyzing trace with hash 39092709, now seen corresponding path program 1 times [2024-11-17 08:03:34,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:03:34,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386121487] [2024-11-17 08:03:34,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:03:34,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:03:34,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:03:34,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:03:34,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 08:03:34,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386121487] [2024-11-17 08:03:34,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386121487] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 08:03:34,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 08:03:34,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 08:03:34,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486360181] [2024-11-17 08:03:34,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 08:03:34,122 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-17 08:03:34,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 08:03:34,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 08:03:34,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 08:03:34,123 INFO L87 Difference]: Start difference. First operand 110 states and 154 transitions. cyclomatic complexity: 56 Second operand has 3 states, 2 states have (on average 2.5) 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) [2024-11-17 08:03:34,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 08:03:34,130 INFO L93 Difference]: Finished difference Result 89 states and 111 transitions. [2024-11-17 08:03:34,130 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 89 states and 111 transitions. [2024-11-17 08:03:34,130 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 22 [2024-11-17 08:03:34,131 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 89 states to 80 states and 102 transitions. [2024-11-17 08:03:34,131 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 41 [2024-11-17 08:03:34,131 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 41 [2024-11-17 08:03:34,131 INFO L73 IsDeterministic]: Start isDeterministic. Operand 80 states and 102 transitions. [2024-11-17 08:03:34,131 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-17 08:03:34,131 INFO L218 hiAutomatonCegarLoop]: Abstraction has 80 states and 102 transitions. [2024-11-17 08:03:34,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states and 102 transitions. [2024-11-17 08:03:34,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 74. [2024-11-17 08:03:34,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 74 states have (on average 1.2972972972972974) internal successors, (96), 73 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:03:34,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 96 transitions. [2024-11-17 08:03:34,134 INFO L240 hiAutomatonCegarLoop]: Abstraction has 74 states and 96 transitions. [2024-11-17 08:03:34,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 08:03:34,136 INFO L425 stractBuchiCegarLoop]: Abstraction has 74 states and 96 transitions. [2024-11-17 08:03:34,137 INFO L332 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2024-11-17 08:03:34,137 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 74 states and 96 transitions. [2024-11-17 08:03:34,137 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 21 [2024-11-17 08:03:34,137 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:03:34,137 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:03:34,138 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1] [2024-11-17 08:03:34,138 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2024-11-17 08:03:34,138 INFO L745 eck$LassoCheckResult]: Stem: 860#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 861#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 862#L11 assume true; 867#L11-1 assume !!(main_~i~0#1 > 0); 922#L12 assume !(1 == main_~i~0#1); 920#L15 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 917#L18 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 915#L11 assume true; 914#L11-1 assume !!(main_~i~0#1 > 0); 869#L12 assume 1 == main_~i~0#1;main_~up~0#1 := 1; 863#L15 [2024-11-17 08:03:34,138 INFO L747 eck$LassoCheckResult]: Loop: 863#L15 assume !(10 == main_~i~0#1); 864#L18 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 872#L11 assume true; 882#L11-1 assume !!(main_~i~0#1 > 0); 883#L12 assume 1 == main_~i~0#1;main_~up~0#1 := 1; 863#L15 [2024-11-17 08:03:34,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:03:34,138 INFO L85 PathProgramCache]: Analyzing trace with hash 234682912, now seen corresponding path program 1 times [2024-11-17 08:03:34,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:03:34,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279933580] [2024-11-17 08:03:34,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:03:34,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:03:34,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:03:34,166 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:03:34,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 08:03:34,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279933580] [2024-11-17 08:03:34,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279933580] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 08:03:34,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 08:03:34,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 08:03:34,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979428706] [2024-11-17 08:03:34,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 08:03:34,167 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-11-17 08:03:34,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:03:34,167 INFO L85 PathProgramCache]: Analyzing trace with hash 34270538, now seen corresponding path program 2 times [2024-11-17 08:03:34,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:03:34,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664488234] [2024-11-17 08:03:34,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:03:34,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:03:34,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:03:34,172 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:03:34,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:03:34,177 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:03:34,205 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:03:34,205 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:03:34,205 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:03:34,205 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:03:34,205 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-17 08:03:34,205 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:03:34,205 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:03:34,205 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:03:34,205 INFO L132 ssoRankerPreferences]: Filename of dumped script: Ex08.c_Iteration7_Loop [2024-11-17 08:03:34,206 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:03:34,206 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:03:34,206 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:03:34,208 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:03:34,213 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:03:34,215 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:03:34,253 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:03:34,253 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-17 08:03:34,253 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:03:34,253 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:03:34,254 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:03:34,256 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2024-11-17 08:03:34,257 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:03:34,257 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:03:34,274 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-17 08:03:34,275 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_7=1} Honda state: {v_rep~unnamed0~0~true_7=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-17 08:03:34,284 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2024-11-17 08:03:34,285 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:03:34,285 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:03:34,286 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:03:34,286 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2024-11-17 08:03:34,287 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:03:34,287 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:03:34,307 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2024-11-17 08:03:34,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:03:34,308 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:03:34,309 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:03:34,309 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2024-11-17 08:03:34,310 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-17 08:03:34,310 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:03:34,322 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-17 08:03:34,332 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2024-11-17 08:03:34,332 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:03:34,332 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:03:34,332 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:03:34,332 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:03:34,332 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-17 08:03:34,332 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:03:34,332 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:03:34,332 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:03:34,332 INFO L132 ssoRankerPreferences]: Filename of dumped script: Ex08.c_Iteration7_Loop [2024-11-17 08:03:34,332 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:03:34,332 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:03:34,333 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:03:34,337 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:03:34,341 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:03:34,343 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:03:34,380 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:03:34,380 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-17 08:03:34,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:03:34,380 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:03:34,383 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:03:34,384 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2024-11-17 08:03:34,384 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 [2024-11-17 08:03:34,394 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:03:34,394 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:03:34,395 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:03:34,395 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:03:34,399 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-17 08:03:34,399 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-17 08:03:34,401 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-17 08:03:34,411 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2024-11-17 08:03:34,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:03:34,412 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:03:34,413 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:03:34,414 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2024-11-17 08:03:34,415 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 [2024-11-17 08:03:34,425 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:03:34,425 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-17 08:03:34,425 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:03:34,425 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:03:34,425 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:03:34,426 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-17 08:03:34,426 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-17 08:03:34,427 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-17 08:03:34,430 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-17 08:03:34,430 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-17 08:03:34,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:03:34,430 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:03:34,431 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:03:34,433 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2024-11-17 08:03:34,434 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-17 08:03:34,434 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-17 08:03:34,434 INFO L474 LassoAnalysis]: Proved termination. [2024-11-17 08:03:34,434 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 1 Supporting invariants [] [2024-11-17 08:03:34,444 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2024-11-17 08:03:34,445 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-17 08:03:34,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:03:34,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:03:34,461 INFO L255 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-17 08:03:34,462 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:03:34,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:03:34,482 INFO L255 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-17 08:03:34,483 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:03:34,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:03:34,503 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-11-17 08:03:34,504 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 74 states and 96 transitions. cyclomatic complexity: 31 Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:03:34,552 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 74 states and 96 transitions. cyclomatic complexity: 31. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 152 states and 191 transitions. Complement of second has 9 states. [2024-11-17 08:03:34,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2024-11-17 08:03:34,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:03:34,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 27 transitions. [2024-11-17 08:03:34,553 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 10 letters. Loop has 5 letters. [2024-11-17 08:03:34,553 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:03:34,553 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 15 letters. Loop has 5 letters. [2024-11-17 08:03:34,554 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:03:34,554 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 10 letters. Loop has 10 letters. [2024-11-17 08:03:34,554 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:03:34,554 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 152 states and 191 transitions. [2024-11-17 08:03:34,555 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 34 [2024-11-17 08:03:34,556 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 152 states to 135 states and 171 transitions. [2024-11-17 08:03:34,556 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 58 [2024-11-17 08:03:34,556 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 63 [2024-11-17 08:03:34,556 INFO L73 IsDeterministic]: Start isDeterministic. Operand 135 states and 171 transitions. [2024-11-17 08:03:34,556 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-17 08:03:34,556 INFO L218 hiAutomatonCegarLoop]: Abstraction has 135 states and 171 transitions. [2024-11-17 08:03:34,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states and 171 transitions. [2024-11-17 08:03:34,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 103. [2024-11-17 08:03:34,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 103 states have (on average 1.3106796116504855) internal successors, (135), 102 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:03:34,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 135 transitions. [2024-11-17 08:03:34,560 INFO L240 hiAutomatonCegarLoop]: Abstraction has 103 states and 135 transitions. [2024-11-17 08:03:34,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 08:03:34,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 08:03:34,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-17 08:03:34,563 INFO L87 Difference]: Start difference. First operand 103 states and 135 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:03:34,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 08:03:34,575 INFO L93 Difference]: Finished difference Result 123 states and 154 transitions. [2024-11-17 08:03:34,575 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 123 states and 154 transitions. [2024-11-17 08:03:34,576 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 27 [2024-11-17 08:03:34,577 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 123 states to 113 states and 141 transitions. [2024-11-17 08:03:34,577 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 55 [2024-11-17 08:03:34,577 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 55 [2024-11-17 08:03:34,577 INFO L73 IsDeterministic]: Start isDeterministic. Operand 113 states and 141 transitions. [2024-11-17 08:03:34,577 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-17 08:03:34,577 INFO L218 hiAutomatonCegarLoop]: Abstraction has 113 states and 141 transitions. [2024-11-17 08:03:34,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states and 141 transitions. [2024-11-17 08:03:34,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 82. [2024-11-17 08:03:34,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 82 states have (on average 1.2682926829268293) internal successors, (104), 81 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:03:34,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 104 transitions. [2024-11-17 08:03:34,580 INFO L240 hiAutomatonCegarLoop]: Abstraction has 82 states and 104 transitions. [2024-11-17 08:03:34,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 08:03:34,584 INFO L425 stractBuchiCegarLoop]: Abstraction has 82 states and 104 transitions. [2024-11-17 08:03:34,584 INFO L332 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2024-11-17 08:03:34,584 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 82 states and 104 transitions. [2024-11-17 08:03:34,584 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 25 [2024-11-17 08:03:34,584 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:03:34,584 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:03:34,585 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1] [2024-11-17 08:03:34,585 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2024-11-17 08:03:34,585 INFO L745 eck$LassoCheckResult]: Stem: 1385#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 1386#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 1387#L11 assume true; 1430#L11-1 assume !!(main_~i~0#1 > 0); 1416#L12 assume !(1 == main_~i~0#1); 1417#L15 assume !(10 == main_~i~0#1); 1377#L18 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 1378#L11 assume true; 1410#L11-1 assume !!(main_~i~0#1 > 0); 1402#L12 assume 1 == main_~i~0#1;main_~up~0#1 := 1; 1400#L15 assume !(10 == main_~i~0#1); 1401#L18 [2024-11-17 08:03:34,585 INFO L747 eck$LassoCheckResult]: Loop: 1401#L18 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 1446#L11 assume true; 1445#L11-1 assume !!(main_~i~0#1 > 0); 1444#L12 assume !(1 == main_~i~0#1); 1442#L15 assume !(10 == main_~i~0#1); 1401#L18 [2024-11-17 08:03:34,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:03:34,585 INFO L85 PathProgramCache]: Analyzing trace with hash -1286135163, now seen corresponding path program 1 times [2024-11-17 08:03:34,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:03:34,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940970350] [2024-11-17 08:03:34,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:03:34,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:03:34,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:03:34,589 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:03:34,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:03:34,591 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:03:34,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:03:34,592 INFO L85 PathProgramCache]: Analyzing trace with hash 31737279, now seen corresponding path program 1 times [2024-11-17 08:03:34,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:03:34,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318458300] [2024-11-17 08:03:34,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:03:34,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:03:34,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:03:34,594 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:03:34,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:03:34,595 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:03:34,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:03:34,596 INFO L85 PathProgramCache]: Analyzing trace with hash -1292757573, now seen corresponding path program 1 times [2024-11-17 08:03:34,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:03:34,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221311427] [2024-11-17 08:03:34,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:03:34,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:03:34,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:03:34,603 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:03:34,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:03:34,606 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:03:34,632 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:03:34,632 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:03:34,632 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:03:34,632 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:03:34,632 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-17 08:03:34,632 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:03:34,632 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:03:34,632 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:03:34,632 INFO L132 ssoRankerPreferences]: Filename of dumped script: Ex08.c_Iteration8_Loop [2024-11-17 08:03:34,633 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:03:34,633 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:03:34,633 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:03:34,639 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:03:34,641 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:03:34,643 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:03:34,694 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:03:34,694 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-17 08:03:34,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:03:34,694 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:03:34,695 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:03:34,696 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2024-11-17 08:03:34,696 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:03:34,697 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:03:34,716 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2024-11-17 08:03:34,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:03:34,717 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:03:34,718 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:03:34,719 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2024-11-17 08:03:34,719 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-17 08:03:34,719 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:03:34,774 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-17 08:03:34,774 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~i~0#1=12} Honda state: {ULTIMATE.start_main_~i~0#1=12} Generalized eigenvectors: [{ULTIMATE.start_main_~i~0#1=0}, {ULTIMATE.start_main_~i~0#1=0}, {ULTIMATE.start_main_~i~0#1=1}] Lambdas: [29, 15, 1] Nus: [1, 0] [2024-11-17 08:03:34,784 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2024-11-17 08:03:34,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:03:34,784 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:03:34,786 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:03:34,786 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2024-11-17 08:03:34,787 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:03:34,787 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:03:34,798 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-17 08:03:34,799 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~up~0#1=1} Honda state: {ULTIMATE.start_main_~up~0#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-17 08:03:34,809 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2024-11-17 08:03:34,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:03:34,809 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:03:34,811 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:03:34,811 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2024-11-17 08:03:34,812 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:03:34,813 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:03:34,830 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-17 08:03:34,830 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_9=1} Honda state: {v_rep~unnamed0~0~true_9=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-17 08:03:34,839 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2024-11-17 08:03:34,840 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:03:34,840 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:03:34,841 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:03:34,841 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2024-11-17 08:03:34,842 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:03:34,842 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:03:34,859 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-17 08:03:34,859 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_9=0} Honda state: {v_rep~unnamed0~0~false_9=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-17 08:03:34,869 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2024-11-17 08:03:34,888 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:03:34,889 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:03:34,889 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:03:34,889 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:03:34,889 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-17 08:03:34,889 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:03:34,889 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:03:34,889 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:03:34,889 INFO L132 ssoRankerPreferences]: Filename of dumped script: Ex08.c_Iteration8_Lasso [2024-11-17 08:03:34,889 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:03:34,889 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:03:34,890 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:03:34,905 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:03:34,912 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:03:34,913 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2024-11-17 08:03:34,919 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:03:34,921 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:03:34,929 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:03:34,930 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2024-11-17 08:03:34,946 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 [2024-11-17 08:03:35,008 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:03:35,008 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-17 08:03:35,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:03:35,008 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:03:35,010 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:03:35,011 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2024-11-17 08:03:35,011 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:03:35,011 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:03:35,032 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2024-11-17 08:03:35,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:03:35,032 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:03:35,033 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:03:35,034 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2024-11-17 08:03:35,036 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-17 08:03:35,036 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:03:35,120 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-17 08:03:35,124 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2024-11-17 08:03:35,124 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:03:35,124 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:03:35,124 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:03:35,124 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:03:35,124 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-17 08:03:35,124 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:03:35,124 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:03:35,124 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:03:35,124 INFO L132 ssoRankerPreferences]: Filename of dumped script: Ex08.c_Iteration8_Lasso [2024-11-17 08:03:35,124 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:03:35,124 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:03:35,125 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:03:35,131 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:03:35,133 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:03:35,134 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:03:35,136 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:03:35,137 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:03:35,215 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:03:35,215 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-17 08:03:35,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:03:35,215 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:03:35,217 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:03:35,218 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2024-11-17 08:03:35,218 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 [2024-11-17 08:03:35,228 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:03:35,228 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:03:35,228 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:03:35,228 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:03:35,229 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-17 08:03:35,229 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-17 08:03:35,232 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-17 08:03:35,242 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2024-11-17 08:03:35,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:03:35,242 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:03:35,243 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:03:35,243 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2024-11-17 08:03:35,244 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 [2024-11-17 08:03:35,253 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:03:35,254 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:03:35,254 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:03:35,254 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:03:35,255 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-17 08:03:35,255 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-17 08:03:35,258 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-17 08:03:35,268 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2024-11-17 08:03:35,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:03:35,268 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:03:35,270 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:03:35,271 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2024-11-17 08:03:35,271 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 [2024-11-17 08:03:35,281 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:03:35,281 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-17 08:03:35,281 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:03:35,281 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:03:35,281 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:03:35,282 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-17 08:03:35,282 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-17 08:03:35,283 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-17 08:03:35,293 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2024-11-17 08:03:35,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:03:35,293 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:03:35,294 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:03:35,295 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2024-11-17 08:03:35,295 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 [2024-11-17 08:03:35,305 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:03:35,305 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:03:35,305 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:03:35,306 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:03:35,307 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-17 08:03:35,307 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-17 08:03:35,311 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-17 08:03:35,321 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2024-11-17 08:03:35,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:03:35,322 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:03:35,323 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:03:35,323 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2024-11-17 08:03:35,324 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 [2024-11-17 08:03:35,333 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:03:35,334 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-17 08:03:35,334 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:03:35,334 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:03:35,334 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:03:35,334 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-17 08:03:35,335 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-17 08:03:35,357 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-17 08:03:35,367 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2024-11-17 08:03:35,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:03:35,368 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:03:35,369 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:03:35,369 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2024-11-17 08:03:35,370 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 [2024-11-17 08:03:35,379 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:03:35,380 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:03:35,380 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-11-17 08:03:35,380 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:03:35,384 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2024-11-17 08:03:35,384 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2024-11-17 08:03:35,393 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-17 08:03:35,408 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2024-11-17 08:03:35,408 INFO L444 ModelExtractionUtils]: 2 out of 11 variables were initially zero. Simplification set additionally 4 variables to zero. [2024-11-17 08:03:35,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:03:35,409 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:03:35,410 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:03:35,411 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2024-11-17 08:03:35,412 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-17 08:03:35,424 INFO L438 nArgumentSynthesizer]: Removed 3 redundant supporting invariants from a total of 4. [2024-11-17 08:03:35,424 INFO L474 LassoAnalysis]: Proved termination. [2024-11-17 08:03:35,424 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 19 Supporting invariants [-1*ULTIMATE.start_main_~i~0#1 + 9 >= 0] [2024-11-17 08:03:35,435 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2024-11-17 08:03:35,440 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2024-11-17 08:03:35,458 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:03:35,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:03:35,463 INFO L255 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-17 08:03:35,464 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:03:35,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:03:35,494 WARN L253 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-17 08:03:35,494 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:03:35,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:03:35,521 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2024-11-17 08:03:35,521 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 82 states and 104 transitions. cyclomatic complexity: 31 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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) [2024-11-17 08:03:35,552 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 82 states and 104 transitions. cyclomatic complexity: 31. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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) Result 90 states and 113 transitions. Complement of second has 5 states. [2024-11-17 08:03:35,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 0 non-accepting loop states 2 accepting loop states [2024-11-17 08:03:35,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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) [2024-11-17 08:03:35,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2024-11-17 08:03:35,553 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 11 letters. Loop has 5 letters. [2024-11-17 08:03:35,553 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:03:35,553 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-17 08:03:35,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:03:35,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:03:35,572 INFO L255 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-17 08:03:35,573 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:03:35,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:03:35,592 WARN L253 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-17 08:03:35,593 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:03:35,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:03:35,617 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 2 loop predicates [2024-11-17 08:03:35,617 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 82 states and 104 transitions. cyclomatic complexity: 31 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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) [2024-11-17 08:03:35,681 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 82 states and 104 transitions. cyclomatic complexity: 31. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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) Result 175 states and 213 transitions. Complement of second has 12 states. [2024-11-17 08:03:35,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 2 stem states 3 non-accepting loop states 2 accepting loop states [2024-11-17 08:03:35,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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) [2024-11-17 08:03:35,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 32 transitions. [2024-11-17 08:03:35,682 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 32 transitions. Stem has 11 letters. Loop has 5 letters. [2024-11-17 08:03:35,682 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:03:35,682 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-17 08:03:35,698 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:03:35,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:03:35,703 INFO L255 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-17 08:03:35,703 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:03:35,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:03:35,725 WARN L253 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-17 08:03:35,726 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:03:35,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:03:35,747 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2024-11-17 08:03:35,747 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 82 states and 104 transitions. cyclomatic complexity: 31 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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) [2024-11-17 08:03:35,781 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 82 states and 104 transitions. cyclomatic complexity: 31. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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) Result 91 states and 113 transitions. Complement of second has 4 states. [2024-11-17 08:03:35,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 0 non-accepting loop states 2 accepting loop states [2024-11-17 08:03:35,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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) [2024-11-17 08:03:35,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2024-11-17 08:03:35,784 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 11 letters. Loop has 5 letters. [2024-11-17 08:03:35,784 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:03:35,784 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-17 08:03:35,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:03:35,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:03:35,805 INFO L255 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-17 08:03:35,806 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:03:35,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:03:35,827 WARN L253 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-17 08:03:35,827 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:03:35,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:03:35,850 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and with honda bouncer for loop.2 stem predicates 2 loop predicates [2024-11-17 08:03:35,850 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 82 states and 104 transitions. cyclomatic complexity: 31 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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) [2024-11-17 08:03:35,912 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 82 states and 104 transitions. cyclomatic complexity: 31. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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) Result 180 states and 220 transitions. Complement of second has 22 states. [2024-11-17 08:03:35,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 2 stem states 3 non-accepting loop states 2 accepting loop states [2024-11-17 08:03:35,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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) [2024-11-17 08:03:35,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 36 transitions. [2024-11-17 08:03:35,913 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 36 transitions. Stem has 11 letters. Loop has 5 letters. [2024-11-17 08:03:35,913 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:03:35,914 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 36 transitions. Stem has 16 letters. Loop has 5 letters. [2024-11-17 08:03:35,914 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:03:35,914 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 36 transitions. Stem has 11 letters. Loop has 10 letters. [2024-11-17 08:03:35,914 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:03:35,914 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 180 states and 220 transitions. [2024-11-17 08:03:35,915 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 33 [2024-11-17 08:03:35,916 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 180 states to 117 states and 144 transitions. [2024-11-17 08:03:35,916 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 49 [2024-11-17 08:03:35,916 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 54 [2024-11-17 08:03:35,916 INFO L73 IsDeterministic]: Start isDeterministic. Operand 117 states and 144 transitions. [2024-11-17 08:03:35,916 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-17 08:03:35,916 INFO L218 hiAutomatonCegarLoop]: Abstraction has 117 states and 144 transitions. [2024-11-17 08:03:35,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states and 144 transitions. [2024-11-17 08:03:35,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 98. [2024-11-17 08:03:35,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 98 states have (on average 1.2551020408163265) internal successors, (123), 97 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:03:35,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 123 transitions. [2024-11-17 08:03:35,920 INFO L240 hiAutomatonCegarLoop]: Abstraction has 98 states and 123 transitions. [2024-11-17 08:03:35,920 INFO L425 stractBuchiCegarLoop]: Abstraction has 98 states and 123 transitions. [2024-11-17 08:03:35,920 INFO L332 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2024-11-17 08:03:35,920 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 98 states and 123 transitions. [2024-11-17 08:03:35,920 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 30 [2024-11-17 08:03:35,920 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:03:35,920 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:03:35,921 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-17 08:03:35,921 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [3, 3, 2, 2, 2, 1, 1, 1] [2024-11-17 08:03:35,921 INFO L745 eck$LassoCheckResult]: Stem: 2288#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 2289#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 2294#L11 assume true; 2339#L11-1 assume !!(main_~i~0#1 > 0); 2337#L12 assume !(1 == main_~i~0#1); 2335#L15 assume !(10 == main_~i~0#1); 2284#L18 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 2285#L11 assume true; 2319#L11-1 assume !!(main_~i~0#1 > 0); 2316#L12 assume 1 == main_~i~0#1;main_~up~0#1 := 1; 2317#L15 assume !(10 == main_~i~0#1); 2305#L18 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 2299#L11 [2024-11-17 08:03:35,921 INFO L747 eck$LassoCheckResult]: Loop: 2299#L11 assume true; 2290#L11-1 assume !!(main_~i~0#1 > 0); 2291#L12 assume !(1 == main_~i~0#1); 2360#L15 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 2361#L18 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 2369#L11 assume true; 2367#L11-1 assume !!(main_~i~0#1 > 0); 2365#L12 assume !(1 == main_~i~0#1); 2364#L15 assume !(10 == main_~i~0#1); 2345#L18 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 2346#L11 assume true; 2321#L11-1 assume !!(main_~i~0#1 > 0); 2322#L12 assume 1 == main_~i~0#1;main_~up~0#1 := 1; 2312#L15 assume !(10 == main_~i~0#1); 2313#L18 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 2299#L11 [2024-11-17 08:03:35,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:03:35,921 INFO L85 PathProgramCache]: Analyzing trace with hash -1215484386, now seen corresponding path program 2 times [2024-11-17 08:03:35,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:03:35,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142775396] [2024-11-17 08:03:35,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:03:35,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:03:35,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:03:35,925 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:03:35,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:03:35,927 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:03:35,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:03:35,927 INFO L85 PathProgramCache]: Analyzing trace with hash 1283625317, now seen corresponding path program 1 times [2024-11-17 08:03:35,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:03:35,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122811367] [2024-11-17 08:03:35,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:03:35,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:03:35,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:03:35,956 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:03:35,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 08:03:35,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122811367] [2024-11-17 08:03:35,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122811367] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 08:03:35,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1835098140] [2024-11-17 08:03:35,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:03:35,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 08:03:35,957 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:03:35,958 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 08:03:35,959 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2024-11-17 08:03:35,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:03:35,980 INFO L255 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-17 08:03:35,981 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:03:35,991 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:03:35,991 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 08:03:36,015 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:03:36,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1835098140] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 08:03:36,015 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 08:03:36,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2024-11-17 08:03:36,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949978966] [2024-11-17 08:03:36,016 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 08:03:36,016 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-17 08:03:36,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 08:03:36,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-17 08:03:36,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2024-11-17 08:03:36,016 INFO L87 Difference]: Start difference. First operand 98 states and 123 transitions. cyclomatic complexity: 34 Second operand has 8 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:03:36,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 08:03:36,050 INFO L93 Difference]: Finished difference Result 213 states and 253 transitions. [2024-11-17 08:03:36,050 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 213 states and 253 transitions. [2024-11-17 08:03:36,051 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 52 [2024-11-17 08:03:36,052 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 213 states to 213 states and 253 transitions. [2024-11-17 08:03:36,052 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 90 [2024-11-17 08:03:36,052 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 90 [2024-11-17 08:03:36,052 INFO L73 IsDeterministic]: Start isDeterministic. Operand 213 states and 253 transitions. [2024-11-17 08:03:36,052 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-17 08:03:36,052 INFO L218 hiAutomatonCegarLoop]: Abstraction has 213 states and 253 transitions. [2024-11-17 08:03:36,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states and 253 transitions. [2024-11-17 08:03:36,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 159. [2024-11-17 08:03:36,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 159 states have (on average 1.1823899371069182) internal successors, (188), 158 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:03:36,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 188 transitions. [2024-11-17 08:03:36,056 INFO L240 hiAutomatonCegarLoop]: Abstraction has 159 states and 188 transitions. [2024-11-17 08:03:36,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-17 08:03:36,057 INFO L425 stractBuchiCegarLoop]: Abstraction has 159 states and 188 transitions. [2024-11-17 08:03:36,057 INFO L332 stractBuchiCegarLoop]: ======== Iteration 10 ============ [2024-11-17 08:03:36,057 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 159 states and 188 transitions. [2024-11-17 08:03:36,057 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 50 [2024-11-17 08:03:36,057 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:03:36,057 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:03:36,058 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-17 08:03:36,058 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [7, 7, 6, 6, 6, 1, 1, 1] [2024-11-17 08:03:36,058 INFO L745 eck$LassoCheckResult]: Stem: 2698#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 2699#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 2700#L11 assume true; 2743#L11-1 assume !!(main_~i~0#1 > 0); 2741#L12 assume !(1 == main_~i~0#1); 2717#L15 assume !(10 == main_~i~0#1); 2719#L18 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 2738#L11 assume true; 2737#L11-1 assume !!(main_~i~0#1 > 0); 2735#L12 assume 1 == main_~i~0#1;main_~up~0#1 := 1; 2730#L15 assume !(10 == main_~i~0#1); 2731#L18 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 2710#L11 [2024-11-17 08:03:36,058 INFO L747 eck$LassoCheckResult]: Loop: 2710#L11 assume true; 2831#L11-1 assume !!(main_~i~0#1 > 0); 2829#L12 assume !(1 == main_~i~0#1); 2817#L15 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 2714#L18 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 2705#L11 assume true; 2694#L11-1 assume !!(main_~i~0#1 > 0); 2695#L12 assume !(1 == main_~i~0#1); 2706#L15 assume !(10 == main_~i~0#1); 2821#L18 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 2820#L11 assume true; 2819#L11-1 assume !!(main_~i~0#1 > 0); 2818#L12 assume !(1 == main_~i~0#1); 2816#L15 assume !(10 == main_~i~0#1); 2806#L18 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 2807#L11 assume true; 2826#L11-1 assume !!(main_~i~0#1 > 0); 2801#L12 assume !(1 == main_~i~0#1); 2802#L15 assume !(10 == main_~i~0#1); 2797#L18 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 2798#L11 assume true; 2823#L11-1 assume !!(main_~i~0#1 > 0); 2792#L12 assume !(1 == main_~i~0#1); 2793#L15 assume !(10 == main_~i~0#1); 2789#L18 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 2788#L11 assume true; 2787#L11-1 assume !!(main_~i~0#1 > 0); 2786#L12 assume !(1 == main_~i~0#1); 2729#L15 assume !(10 == main_~i~0#1); 2815#L18 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 2753#L11 assume true; 2754#L11-1 assume !!(main_~i~0#1 > 0); 2728#L12 assume 1 == main_~i~0#1;main_~up~0#1 := 1; 2727#L15 assume !(10 == main_~i~0#1); 2726#L18 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 2710#L11 [2024-11-17 08:03:36,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:03:36,058 INFO L85 PathProgramCache]: Analyzing trace with hash -1215484386, now seen corresponding path program 3 times [2024-11-17 08:03:36,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:03:36,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038267453] [2024-11-17 08:03:36,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:03:36,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:03:36,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:03:36,061 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:03:36,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:03:36,063 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:03:36,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:03:36,064 INFO L85 PathProgramCache]: Analyzing trace with hash -406611803, now seen corresponding path program 2 times [2024-11-17 08:03:36,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:03:36,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943015868] [2024-11-17 08:03:36,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:03:36,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:03:36,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:03:36,146 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2024-11-17 08:03:36,157 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 35 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:03:36,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 08:03:36,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943015868] [2024-11-17 08:03:36,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943015868] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 08:03:36,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [138996269] [2024-11-17 08:03:36,158 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-17 08:03:36,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 08:03:36,158 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:03:36,159 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 08:03:36,160 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2024-11-17 08:03:36,185 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-17 08:03:36,185 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-17 08:03:36,185 INFO L255 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-17 08:03:36,186 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:03:36,220 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 35 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:03:36,221 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 08:03:36,291 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 35 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:03:36,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [138996269] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 08:03:36,292 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 08:03:36,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 11 [2024-11-17 08:03:36,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733182576] [2024-11-17 08:03:36,293 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 08:03:36,293 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-17 08:03:36,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 08:03:36,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-17 08:03:36,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2024-11-17 08:03:36,295 INFO L87 Difference]: Start difference. First operand 159 states and 188 transitions. cyclomatic complexity: 38 Second operand has 11 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 11 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:03:36,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 08:03:36,349 INFO L93 Difference]: Finished difference Result 288 states and 337 transitions. [2024-11-17 08:03:36,349 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 288 states and 337 transitions. [2024-11-17 08:03:36,351 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 67 [2024-11-17 08:03:36,352 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 288 states to 288 states and 337 transitions. [2024-11-17 08:03:36,352 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 120 [2024-11-17 08:03:36,352 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 120 [2024-11-17 08:03:36,352 INFO L73 IsDeterministic]: Start isDeterministic. Operand 288 states and 337 transitions. [2024-11-17 08:03:36,352 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-17 08:03:36,352 INFO L218 hiAutomatonCegarLoop]: Abstraction has 288 states and 337 transitions. [2024-11-17 08:03:36,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states and 337 transitions. [2024-11-17 08:03:36,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 204. [2024-11-17 08:03:36,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 204 states have (on average 1.1568627450980393) internal successors, (236), 203 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:03:36,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 236 transitions. [2024-11-17 08:03:36,357 INFO L240 hiAutomatonCegarLoop]: Abstraction has 204 states and 236 transitions. [2024-11-17 08:03:36,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-17 08:03:36,357 INFO L425 stractBuchiCegarLoop]: Abstraction has 204 states and 236 transitions. [2024-11-17 08:03:36,357 INFO L332 stractBuchiCegarLoop]: ======== Iteration 11 ============ [2024-11-17 08:03:36,357 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 204 states and 236 transitions. [2024-11-17 08:03:36,358 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 65 [2024-11-17 08:03:36,358 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:03:36,358 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:03:36,359 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-17 08:03:36,359 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [10, 10, 9, 9, 9, 1, 1, 1] [2024-11-17 08:03:36,359 INFO L745 eck$LassoCheckResult]: Stem: 3363#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 3364#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 3365#L11 assume true; 3408#L11-1 assume !!(main_~i~0#1 > 0); 3406#L12 assume !(1 == main_~i~0#1); 3381#L15 assume !(10 == main_~i~0#1); 3383#L18 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 3402#L11 assume true; 3401#L11-1 assume !!(main_~i~0#1 > 0); 3399#L12 assume 1 == main_~i~0#1;main_~up~0#1 := 1; 3394#L15 assume !(10 == main_~i~0#1); 3395#L18 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 3376#L11 [2024-11-17 08:03:36,359 INFO L747 eck$LassoCheckResult]: Loop: 3376#L11 assume true; 3538#L11-1 assume !!(main_~i~0#1 > 0); 3535#L12 assume !(1 == main_~i~0#1); 3520#L15 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 3377#L18 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 3378#L11 assume true; 3546#L11-1 assume !!(main_~i~0#1 > 0); 3545#L12 assume !(1 == main_~i~0#1); 3528#L15 assume !(10 == main_~i~0#1); 3527#L18 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 3526#L11 assume true; 3525#L11-1 assume !!(main_~i~0#1 > 0); 3524#L12 assume !(1 == main_~i~0#1); 3522#L15 assume !(10 == main_~i~0#1); 3523#L18 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 3508#L11 assume true; 3509#L11-1 assume !!(main_~i~0#1 > 0); 3504#L12 assume !(1 == main_~i~0#1); 3505#L15 assume !(10 == main_~i~0#1); 3501#L18 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 3500#L11 assume true; 3499#L11-1 assume !!(main_~i~0#1 > 0); 3497#L12 assume !(1 == main_~i~0#1); 3498#L15 assume !(10 == main_~i~0#1); 3518#L18 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 3548#L11 assume true; 3547#L11-1 assume !!(main_~i~0#1 > 0); 3490#L12 assume !(1 == main_~i~0#1); 3491#L15 assume !(10 == main_~i~0#1); 3486#L18 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 3487#L11 assume true; 3530#L11-1 assume !!(main_~i~0#1 > 0); 3481#L12 assume !(1 == main_~i~0#1); 3482#L15 assume !(10 == main_~i~0#1); 3521#L18 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 3537#L11 assume true; 3476#L11-1 assume !!(main_~i~0#1 > 0); 3474#L12 assume !(1 == main_~i~0#1); 3475#L15 assume !(10 == main_~i~0#1); 3470#L18 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 3471#L11 assume true; 3466#L11-1 assume !!(main_~i~0#1 > 0); 3467#L12 assume !(1 == main_~i~0#1); 3519#L15 assume !(10 == main_~i~0#1); 3457#L18 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 3456#L11 assume true; 3414#L11-1 assume !!(main_~i~0#1 > 0); 3415#L12 assume 1 == main_~i~0#1;main_~up~0#1 := 1; 3391#L15 assume !(10 == main_~i~0#1); 3390#L18 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 3376#L11 [2024-11-17 08:03:36,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:03:36,360 INFO L85 PathProgramCache]: Analyzing trace with hash -1215484386, now seen corresponding path program 4 times [2024-11-17 08:03:36,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:03:36,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656449144] [2024-11-17 08:03:36,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:03:36,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:03:36,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:03:36,366 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:03:36,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:03:36,368 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:03:36,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:03:36,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1365475742, now seen corresponding path program 3 times [2024-11-17 08:03:36,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:03:36,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503786348] [2024-11-17 08:03:36,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:03:36,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:03:36,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:03:36,380 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:03:36,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:03:36,385 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:03:36,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:03:36,385 INFO L85 PathProgramCache]: Analyzing trace with hash 1372294779, now seen corresponding path program 1 times [2024-11-17 08:03:36,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:03:36,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561301835] [2024-11-17 08:03:36,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:03:36,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:03:36,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:03:36,420 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 137 proven. 1 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2024-11-17 08:03:36,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 08:03:36,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561301835] [2024-11-17 08:03:36,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561301835] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 08:03:36,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1149359247] [2024-11-17 08:03:36,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:03:36,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 08:03:36,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:03:36,422 INFO L229 MonitoredProcess]: Starting monitored process 43 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 08:03:36,423 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2024-11-17 08:03:36,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:03:36,450 INFO L255 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-17 08:03:36,451 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:03:36,459 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 137 proven. 1 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2024-11-17 08:03:36,459 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 08:03:36,473 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 137 proven. 1 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2024-11-17 08:03:36,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1149359247] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 08:03:36,474 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 08:03:36,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2024-11-17 08:03:36,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698076351] [2024-11-17 08:03:36,474 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 08:03:36,568 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:03:36,568 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:03:36,568 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:03:36,568 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:03:36,568 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-17 08:03:36,568 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:03:36,568 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:03:36,568 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:03:36,568 INFO L132 ssoRankerPreferences]: Filename of dumped script: Ex08.c_Iteration11_Loop [2024-11-17 08:03:36,568 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:03:36,568 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:03:36,569 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:03:36,571 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:03:36,573 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:03:36,575 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:03:36,603 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:03:36,603 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-17 08:03:36,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:03:36,603 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:03:36,604 INFO L229 MonitoredProcess]: Starting monitored process 44 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:03:36,604 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2024-11-17 08:03:36,605 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:03:36,605 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:03:36,622 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-17 08:03:36,622 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_12=1} Honda state: {v_rep~unnamed0~0~true_12=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-17 08:03:36,631 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2024-11-17 08:03:36,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:03:36,632 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:03:36,633 INFO L229 MonitoredProcess]: Starting monitored process 45 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:03:36,634 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2024-11-17 08:03:36,634 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:03:36,635 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:03:36,652 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-17 08:03:36,652 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_12=0} Honda state: {v_rep~unnamed0~0~false_12=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-17 08:03:36,663 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Ended with exit code 0 [2024-11-17 08:03:36,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:03:36,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:03:36,664 INFO L229 MonitoredProcess]: Starting monitored process 46 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:03:36,666 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2024-11-17 08:03:36,667 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:03:36,667 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:03:36,694 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2024-11-17 08:03:36,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:03:36,694 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:03:36,695 INFO L229 MonitoredProcess]: Starting monitored process 47 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:03:36,696 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2024-11-17 08:03:36,696 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-17 08:03:36,696 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:03:36,707 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-17 08:03:36,717 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Ended with exit code 0 [2024-11-17 08:03:36,717 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:03:36,717 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:03:36,717 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:03:36,717 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:03:36,717 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-17 08:03:36,717 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:03:36,718 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:03:36,718 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:03:36,718 INFO L132 ssoRankerPreferences]: Filename of dumped script: Ex08.c_Iteration11_Loop [2024-11-17 08:03:36,718 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:03:36,718 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:03:36,718 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:03:36,722 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:03:36,724 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:03:36,726 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:03:36,754 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:03:36,754 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-17 08:03:36,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:03:36,755 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:03:36,756 INFO L229 MonitoredProcess]: Starting monitored process 48 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:03:36,757 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2024-11-17 08:03:36,757 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 [2024-11-17 08:03:36,767 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:03:36,767 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:03:36,767 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:03:36,767 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:03:36,768 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-17 08:03:36,768 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-17 08:03:36,771 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-17 08:03:36,780 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Ended with exit code 0 [2024-11-17 08:03:36,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:03:36,781 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:03:36,782 INFO L229 MonitoredProcess]: Starting monitored process 49 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:03:36,783 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2024-11-17 08:03:36,783 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 [2024-11-17 08:03:36,793 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:03:36,793 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:03:36,793 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:03:36,793 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:03:36,794 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-17 08:03:36,794 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-17 08:03:36,797 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-17 08:03:36,806 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Ended with exit code 0 [2024-11-17 08:03:36,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:03:36,807 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:03:36,808 INFO L229 MonitoredProcess]: Starting monitored process 50 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:03:36,809 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2024-11-17 08:03:36,810 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 [2024-11-17 08:03:36,820 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:03:36,820 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-17 08:03:36,820 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:03:36,820 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:03:36,820 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:03:36,821 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-17 08:03:36,821 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-17 08:03:36,822 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-17 08:03:36,832 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2024-11-17 08:03:36,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:03:36,833 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:03:36,834 INFO L229 MonitoredProcess]: Starting monitored process 51 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:03:36,835 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2024-11-17 08:03:36,836 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 [2024-11-17 08:03:36,845 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:03:36,845 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-17 08:03:36,845 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:03:36,845 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:03:36,845 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:03:36,847 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-17 08:03:36,847 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-17 08:03:36,849 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-17 08:03:36,852 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-17 08:03:36,852 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-17 08:03:36,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:03:36,852 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:03:36,853 INFO L229 MonitoredProcess]: Starting monitored process 52 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:03:36,854 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2024-11-17 08:03:36,855 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-17 08:03:36,855 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-17 08:03:36,855 INFO L474 LassoAnalysis]: Proved termination. [2024-11-17 08:03:36,855 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2024-11-17 08:03:36,865 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Forceful destruction successful, exit code 0 [2024-11-17 08:03:36,866 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-17 08:03:36,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:03:36,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:03:36,879 INFO L255 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-17 08:03:36,880 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:03:36,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:03:36,899 INFO L255 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-17 08:03:36,900 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:03:36,957 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 18 proven. 35 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-11-17 08:03:36,958 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-11-17 08:03:36,958 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 204 states and 236 transitions. cyclomatic complexity: 41 Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:03:36,978 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 204 states and 236 transitions. cyclomatic complexity: 41. Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 463 states and 535 transitions. Complement of second has 7 states. [2024-11-17 08:03:36,979 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 [2024-11-17 08:03:36,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:03:36,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 19 transitions. [2024-11-17 08:03:36,980 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 12 letters. Loop has 50 letters. [2024-11-17 08:03:36,980 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:03:36,980 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-17 08:03:36,987 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:03:36,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:03:36,991 INFO L255 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-17 08:03:36,991 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:03:37,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:03:37,007 INFO L255 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-17 08:03:37,008 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:03:37,068 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 18 proven. 35 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-11-17 08:03:37,068 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2024-11-17 08:03:37,068 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 204 states and 236 transitions. cyclomatic complexity: 41 Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:03:37,103 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 204 states and 236 transitions. cyclomatic complexity: 41. Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 476 states and 552 transitions. Complement of second has 9 states. [2024-11-17 08:03:37,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2024-11-17 08:03:37,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:03:37,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 25 transitions. [2024-11-17 08:03:37,105 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 25 transitions. Stem has 12 letters. Loop has 50 letters. [2024-11-17 08:03:37,106 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:03:37,106 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 25 transitions. Stem has 62 letters. Loop has 50 letters. [2024-11-17 08:03:37,106 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:03:37,106 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 25 transitions. Stem has 12 letters. Loop has 100 letters. [2024-11-17 08:03:37,106 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:03:37,108 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 476 states and 552 transitions. [2024-11-17 08:03:37,110 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 114 [2024-11-17 08:03:37,111 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 476 states to 455 states and 527 transitions. [2024-11-17 08:03:37,111 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 217 [2024-11-17 08:03:37,111 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 219 [2024-11-17 08:03:37,111 INFO L73 IsDeterministic]: Start isDeterministic. Operand 455 states and 527 transitions. [2024-11-17 08:03:37,112 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-17 08:03:37,112 INFO L218 hiAutomatonCegarLoop]: Abstraction has 455 states and 527 transitions. [2024-11-17 08:03:37,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states and 527 transitions. [2024-11-17 08:03:37,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 354. [2024-11-17 08:03:37,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 354 states have (on average 1.1581920903954803) internal successors, (410), 353 states have internal predecessors, (410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:03:37,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 410 transitions. [2024-11-17 08:03:37,128 INFO L240 hiAutomatonCegarLoop]: Abstraction has 354 states and 410 transitions. [2024-11-17 08:03:37,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 08:03:37,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 08:03:37,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-17 08:03:37,129 INFO L87 Difference]: Start difference. First operand 354 states and 410 transitions. Second operand has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:03:37,139 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Ended with exit code 0 [2024-11-17 08:03:37,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 08:03:37,160 INFO L93 Difference]: Finished difference Result 227 states and 265 transitions. [2024-11-17 08:03:37,160 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 227 states and 265 transitions. [2024-11-17 08:03:37,162 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 77 [2024-11-17 08:03:37,162 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 227 states to 197 states and 231 transitions. [2024-11-17 08:03:37,163 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 72 [2024-11-17 08:03:37,163 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 72 [2024-11-17 08:03:37,163 INFO L73 IsDeterministic]: Start isDeterministic. Operand 197 states and 231 transitions. [2024-11-17 08:03:37,163 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-17 08:03:37,163 INFO L218 hiAutomatonCegarLoop]: Abstraction has 197 states and 231 transitions. [2024-11-17 08:03:37,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states and 231 transitions. [2024-11-17 08:03:37,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 162. [2024-11-17 08:03:37,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 162 states have (on average 1.154320987654321) internal successors, (187), 161 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:03:37,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 187 transitions. [2024-11-17 08:03:37,165 INFO L240 hiAutomatonCegarLoop]: Abstraction has 162 states and 187 transitions. [2024-11-17 08:03:37,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 08:03:37,166 INFO L425 stractBuchiCegarLoop]: Abstraction has 162 states and 187 transitions. [2024-11-17 08:03:37,166 INFO L332 stractBuchiCegarLoop]: ======== Iteration 12 ============ [2024-11-17 08:03:37,166 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 162 states and 187 transitions. [2024-11-17 08:03:37,167 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 72 [2024-11-17 08:03:37,167 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:03:37,167 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:03:37,170 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 4, 4, 4, 3, 1, 1, 1] [2024-11-17 08:03:37,170 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [13, 13, 12, 12, 9, 4, 1, 1] [2024-11-17 08:03:37,170 INFO L745 eck$LassoCheckResult]: Stem: 5863#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 5864#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 5869#L11 assume true; 5967#L11-1 assume !!(main_~i~0#1 > 0); 5877#L12 assume 1 == main_~i~0#1;main_~up~0#1 := 1; 5878#L15 assume !(10 == main_~i~0#1); 5871#L18 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 5912#L11 assume true; 5911#L11-1 assume !!(main_~i~0#1 > 0); 5902#L12 assume !(1 == main_~i~0#1); 5900#L15 assume !(10 == main_~i~0#1); 5901#L18 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 5896#L11 assume true; 5897#L11-1 assume !!(main_~i~0#1 > 0); 5893#L12 assume !(1 == main_~i~0#1); 5891#L15 assume !(10 == main_~i~0#1); 5892#L18 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 5888#L11 assume true; 5889#L11-1 assume !!(main_~i~0#1 > 0); 5884#L12 assume !(1 == main_~i~0#1); 5885#L15 assume !(10 == main_~i~0#1); 6020#L18 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 5873#L11 [2024-11-17 08:03:37,170 INFO L747 eck$LassoCheckResult]: Loop: 5873#L11 assume true; 5874#L11-1 assume !!(main_~i~0#1 > 0); 5875#L12 assume !(1 == main_~i~0#1); 5876#L15 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 5881#L18 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 5882#L11 assume true; 5960#L11-1 assume !!(main_~i~0#1 > 0); 5961#L12 assume !(1 == main_~i~0#1); 5954#L15 assume !(10 == main_~i~0#1); 5953#L18 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 5952#L11 assume true; 5951#L11-1 assume !!(main_~i~0#1 > 0); 5950#L12 assume !(1 == main_~i~0#1); 5949#L15 assume !(10 == main_~i~0#1); 5948#L18 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 5947#L11 assume true; 5946#L11-1 assume !!(main_~i~0#1 > 0); 5945#L12 assume !(1 == main_~i~0#1); 5944#L15 assume !(10 == main_~i~0#1); 5943#L18 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 5942#L11 assume true; 5941#L11-1 assume !!(main_~i~0#1 > 0); 5940#L12 assume !(1 == main_~i~0#1); 5939#L15 assume !(10 == main_~i~0#1); 5938#L18 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 5937#L11 assume true; 5936#L11-1 assume !!(main_~i~0#1 > 0); 5935#L12 assume !(1 == main_~i~0#1); 5934#L15 assume !(10 == main_~i~0#1); 5933#L18 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 5932#L11 assume true; 5931#L11-1 assume !!(main_~i~0#1 > 0); 5930#L12 assume !(1 == main_~i~0#1); 5929#L15 assume !(10 == main_~i~0#1); 5928#L18 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 5927#L11 assume true; 5926#L11-1 assume !!(main_~i~0#1 > 0); 5925#L12 assume !(1 == main_~i~0#1); 5924#L15 assume !(10 == main_~i~0#1); 5923#L18 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 5922#L11 assume true; 5921#L11-1 assume !!(main_~i~0#1 > 0); 5920#L12 assume !(1 == main_~i~0#1); 5915#L15 assume !(10 == main_~i~0#1); 5918#L18 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 5917#L11 assume true; 5916#L11-1 assume !!(main_~i~0#1 > 0); 5914#L12 assume 1 == main_~i~0#1;main_~up~0#1 := 1; 5913#L15 assume !(10 == main_~i~0#1); 5906#L18 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 5905#L11 assume true; 5903#L11-1 assume !!(main_~i~0#1 > 0); 5904#L12 assume !(1 == main_~i~0#1); 5910#L15 assume !(10 == main_~i~0#1); 5898#L18 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 5899#L11 assume true; 5894#L11-1 assume !!(main_~i~0#1 > 0); 5895#L12 assume !(1 == main_~i~0#1); 5909#L15 assume !(10 == main_~i~0#1); 5890#L18 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 5880#L11 assume true; 5886#L11-1 assume !!(main_~i~0#1 > 0); 5887#L12 assume !(1 == main_~i~0#1); 5883#L15 assume !(10 == main_~i~0#1); 5879#L18 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 5873#L11 [2024-11-17 08:03:37,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:03:37,170 INFO L85 PathProgramCache]: Analyzing trace with hash 177806049, now seen corresponding path program 1 times [2024-11-17 08:03:37,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:03:37,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561763401] [2024-11-17 08:03:37,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:03:37,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:03:37,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:03:37,175 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:03:37,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:03:37,177 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:03:37,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:03:37,178 INFO L85 PathProgramCache]: Analyzing trace with hash -249946136, now seen corresponding path program 4 times [2024-11-17 08:03:37,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:03:37,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522970768] [2024-11-17 08:03:37,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:03:37,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:03:37,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:03:37,187 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:03:37,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:03:37,196 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:03:37,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:03:37,197 INFO L85 PathProgramCache]: Analyzing trace with hash 1057710344, now seen corresponding path program 2 times [2024-11-17 08:03:37,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:03:37,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881350520] [2024-11-17 08:03:37,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:03:37,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:03:37,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:03:37,317 INFO L134 CoverageAnalysis]: Checked inductivity of 680 backedges. 304 proven. 34 refuted. 0 times theorem prover too weak. 342 trivial. 0 not checked. [2024-11-17 08:03:37,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 08:03:37,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881350520] [2024-11-17 08:03:37,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881350520] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 08:03:37,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [366159144] [2024-11-17 08:03:37,317 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-17 08:03:37,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 08:03:37,318 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:03:37,319 INFO L229 MonitoredProcess]: Starting monitored process 53 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 08:03:37,320 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2024-11-17 08:03:37,352 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-17 08:03:37,352 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-17 08:03:37,353 INFO L255 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-17 08:03:37,354 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:03:37,384 INFO L134 CoverageAnalysis]: Checked inductivity of 680 backedges. 304 proven. 34 refuted. 0 times theorem prover too weak. 342 trivial. 0 not checked. [2024-11-17 08:03:37,384 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 08:03:37,459 INFO L134 CoverageAnalysis]: Checked inductivity of 680 backedges. 304 proven. 34 refuted. 0 times theorem prover too weak. 342 trivial. 0 not checked. [2024-11-17 08:03:37,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [366159144] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 08:03:37,459 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 08:03:37,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 11 [2024-11-17 08:03:37,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787583392] [2024-11-17 08:03:37,459 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 08:03:37,598 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:03:37,598 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:03:37,598 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:03:37,598 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:03:37,598 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-17 08:03:37,598 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:03:37,598 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:03:37,598 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:03:37,598 INFO L132 ssoRankerPreferences]: Filename of dumped script: Ex08.c_Iteration12_Loop [2024-11-17 08:03:37,598 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:03:37,598 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:03:37,599 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:03:37,600 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:03:37,602 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:03:37,604 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:03:37,627 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:03:37,627 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-17 08:03:37,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:03:37,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:03:37,629 INFO L229 MonitoredProcess]: Starting monitored process 54 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:03:37,630 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2024-11-17 08:03:37,631 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:03:37,631 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:03:37,647 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-17 08:03:37,648 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_14=1} Honda state: {v_rep~unnamed0~0~true_14=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-17 08:03:37,657 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Forceful destruction successful, exit code 0 [2024-11-17 08:03:37,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:03:37,657 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:03:37,658 INFO L229 MonitoredProcess]: Starting monitored process 55 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:03:37,659 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2024-11-17 08:03:37,659 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:03:37,659 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:03:37,676 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-17 08:03:37,676 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_14=0} Honda state: {v_rep~unnamed0~0~false_14=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-17 08:03:37,685 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Ended with exit code 0 [2024-11-17 08:03:37,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:03:37,686 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:03:37,687 INFO L229 MonitoredProcess]: Starting monitored process 56 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:03:37,687 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2024-11-17 08:03:37,688 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:03:37,688 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:03:37,698 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-17 08:03:37,698 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~up~0#1=1} Honda state: {ULTIMATE.start_main_~up~0#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-17 08:03:37,708 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Forceful destruction successful, exit code 0 [2024-11-17 08:03:37,708 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:03:37,708 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:03:37,709 INFO L229 MonitoredProcess]: Starting monitored process 57 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:03:37,709 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2024-11-17 08:03:37,710 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-17 08:03:37,710 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:03:37,730 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Ended with exit code 0 [2024-11-17 08:03:37,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:03:37,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:03:37,731 INFO L229 MonitoredProcess]: Starting monitored process 58 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:03:37,732 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2024-11-17 08:03:37,732 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-17 08:03:37,732 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-17 08:03:37,743 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-17 08:03:37,753 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Forceful destruction successful, exit code 0 [2024-11-17 08:03:37,753 INFO L204 LassoAnalysis]: Preferences: [2024-11-17 08:03:37,753 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-17 08:03:37,753 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-17 08:03:37,753 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-17 08:03:37,753 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-17 08:03:37,753 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:03:37,753 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-17 08:03:37,753 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-17 08:03:37,753 INFO L132 ssoRankerPreferences]: Filename of dumped script: Ex08.c_Iteration12_Loop [2024-11-17 08:03:37,753 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-17 08:03:37,753 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-17 08:03:37,754 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:03:37,756 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:03:37,758 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:03:37,765 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-17 08:03:37,794 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-17 08:03:37,794 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-17 08:03:37,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:03:37,794 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:03:37,795 INFO L229 MonitoredProcess]: Starting monitored process 59 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:03:37,796 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2024-11-17 08:03:37,797 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 [2024-11-17 08:03:37,807 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:03:37,807 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:03:37,807 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:03:37,807 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:03:37,808 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-17 08:03:37,808 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-17 08:03:37,810 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-17 08:03:37,820 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Ended with exit code 0 [2024-11-17 08:03:37,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:03:37,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:03:37,822 INFO L229 MonitoredProcess]: Starting monitored process 60 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:03:37,822 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2024-11-17 08:03:37,824 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 [2024-11-17 08:03:37,833 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:03:37,833 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-17 08:03:37,833 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:03:37,833 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:03:37,833 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:03:37,834 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-17 08:03:37,834 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-17 08:03:37,835 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-17 08:03:37,845 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Forceful destruction successful, exit code 0 [2024-11-17 08:03:37,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:03:37,845 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:03:37,846 INFO L229 MonitoredProcess]: Starting monitored process 61 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:03:37,846 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2024-11-17 08:03:37,847 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 [2024-11-17 08:03:37,856 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:03:37,857 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:03:37,857 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:03:37,857 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:03:37,858 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-17 08:03:37,858 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-17 08:03:37,860 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-17 08:03:37,870 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Ended with exit code 0 [2024-11-17 08:03:37,870 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:03:37,870 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:03:37,872 INFO L229 MonitoredProcess]: Starting monitored process 62 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:03:37,873 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2024-11-17 08:03:37,874 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 [2024-11-17 08:03:37,883 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-17 08:03:37,883 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-17 08:03:37,883 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-17 08:03:37,883 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-17 08:03:37,883 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-17 08:03:37,884 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-17 08:03:37,884 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-17 08:03:37,886 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-17 08:03:37,889 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-17 08:03:37,889 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-17 08:03:37,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:03:37,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:03:37,890 INFO L229 MonitoredProcess]: Starting monitored process 63 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:03:37,891 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2024-11-17 08:03:37,892 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-17 08:03:37,892 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-17 08:03:37,892 INFO L474 LassoAnalysis]: Proved termination. [2024-11-17 08:03:37,892 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2024-11-17 08:03:37,901 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Forceful destruction successful, exit code 0 [2024-11-17 08:03:37,902 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-17 08:03:37,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:03:37,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:03:37,915 INFO L255 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-17 08:03:37,915 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:03:37,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:03:37,943 INFO L255 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-17 08:03:37,944 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:03:38,071 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 162 proven. 56 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-11-17 08:03:38,072 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 6 loop predicates [2024-11-17 08:03:38,072 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 162 states and 187 transitions. cyclomatic complexity: 31 Second operand has 8 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:03:38,084 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 162 states and 187 transitions. cyclomatic complexity: 31. Second operand has 8 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 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 187 states and 216 transitions. Complement of second has 5 states. [2024-11-17 08:03:38,084 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 [2024-11-17 08:03:38,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:03:38,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 15 transitions. [2024-11-17 08:03:38,085 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 22 letters. Loop has 65 letters. [2024-11-17 08:03:38,085 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:03:38,085 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-17 08:03:38,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:03:38,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:03:38,097 INFO L255 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-17 08:03:38,098 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:03:38,136 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Ended with exit code 0 [2024-11-17 08:03:38,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:03:38,146 INFO L255 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-17 08:03:38,147 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:03:38,264 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 162 proven. 56 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-11-17 08:03:38,265 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 6 loop predicates [2024-11-17 08:03:38,265 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 162 states and 187 transitions. cyclomatic complexity: 31 Second operand has 8 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:03:38,276 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 162 states and 187 transitions. cyclomatic complexity: 31. Second operand has 8 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 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 187 states and 216 transitions. Complement of second has 5 states. [2024-11-17 08:03:38,277 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 [2024-11-17 08:03:38,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:03:38,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 15 transitions. [2024-11-17 08:03:38,277 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 22 letters. Loop has 65 letters. [2024-11-17 08:03:38,277 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:03:38,277 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-17 08:03:38,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:03:38,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:03:38,290 INFO L255 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-17 08:03:38,291 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:03:38,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:03:38,320 INFO L255 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-17 08:03:38,320 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:03:38,444 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 162 proven. 56 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-11-17 08:03:38,444 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 6 loop predicates [2024-11-17 08:03:38,444 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 162 states and 187 transitions. cyclomatic complexity: 31 Second operand has 8 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:03:38,471 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 162 states and 187 transitions. cyclomatic complexity: 31. Second operand has 8 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 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 249 states and 287 transitions. Complement of second has 6 states. [2024-11-17 08:03:38,472 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 [2024-11-17 08:03:38,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:03:38,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 20 transitions. [2024-11-17 08:03:38,472 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 22 letters. Loop has 65 letters. [2024-11-17 08:03:38,472 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:03:38,473 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-17 08:03:38,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:03:38,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:03:38,484 INFO L255 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-17 08:03:38,484 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:03:38,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:03:38,510 INFO L255 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-17 08:03:38,511 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:03:38,629 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 162 proven. 56 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-11-17 08:03:38,629 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and with honda bouncer for loop.1 stem predicates 6 loop predicates [2024-11-17 08:03:38,629 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 162 states and 187 transitions. cyclomatic complexity: 31 Second operand has 8 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:03:38,666 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 162 states and 187 transitions. cyclomatic complexity: 31. Second operand has 8 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 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 259 states and 297 transitions. Complement of second has 8 states. [2024-11-17 08:03:38,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2024-11-17 08:03:38,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:03:38,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 26 transitions. [2024-11-17 08:03:38,667 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 26 transitions. Stem has 22 letters. Loop has 65 letters. [2024-11-17 08:03:38,667 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:03:38,667 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-17 08:03:38,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:03:38,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:03:38,680 INFO L255 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-17 08:03:38,681 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:03:38,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:03:38,708 INFO L255 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-17 08:03:38,709 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 08:03:38,824 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 162 proven. 56 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-11-17 08:03:38,824 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemin loopwithout honda bouncer for stem and without honda bouncer for loop.1 stem predicates 6 loop predicates [2024-11-17 08:03:38,825 INFO L104 BuchiDifferenceFKV]: Start buchiDifferenceFKV. First operand 162 states and 187 transitions. cyclomatic complexity: 31 Second operand has 8 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:03:39,004 INFO L108 BuchiDifferenceFKV]: Finished buchiDifferenceFKV. First operand 162 states and 187 transitions. cyclomatic complexity: 31 Second operand has 8 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 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 2228 states and 3081 transitions. Complement of second has 118 states 15 powerset states103 rank states. The highest rank that occured is 5 [2024-11-17 08:03:39,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 9 states 1 stem states 7 non-accepting loop states 1 accepting loop states [2024-11-17 08:03:39,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:03:39,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 92 transitions. [2024-11-17 08:03:39,005 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 92 transitions. Stem has 22 letters. Loop has 65 letters. [2024-11-17 08:03:39,013 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:03:39,013 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 92 transitions. Stem has 87 letters. Loop has 65 letters. [2024-11-17 08:03:39,021 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:03:39,021 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 92 transitions. Stem has 22 letters. Loop has 130 letters. [2024-11-17 08:03:39,049 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-17 08:03:39,050 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2228 states and 3081 transitions. [2024-11-17 08:03:39,060 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 125 [2024-11-17 08:03:39,065 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2228 states to 1463 states and 2126 transitions. [2024-11-17 08:03:39,065 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 135 [2024-11-17 08:03:39,066 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 325 [2024-11-17 08:03:39,066 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1463 states and 2126 transitions. [2024-11-17 08:03:39,066 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-17 08:03:39,066 INFO L218 hiAutomatonCegarLoop]: Abstraction has 1463 states and 2126 transitions. [2024-11-17 08:03:39,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1463 states and 2126 transitions. [2024-11-17 08:03:39,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1463 to 754. [2024-11-17 08:03:39,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 754 states, 754 states have (on average 1.4549071618037135) internal successors, (1097), 753 states have internal predecessors, (1097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:03:39,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 754 states to 754 states and 1097 transitions. [2024-11-17 08:03:39,078 INFO L240 hiAutomatonCegarLoop]: Abstraction has 754 states and 1097 transitions. [2024-11-17 08:03:39,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 08:03:39,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-17 08:03:39,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2024-11-17 08:03:39,079 INFO L87 Difference]: Start difference. First operand 754 states and 1097 transitions. Second operand has 11 states, 11 states have (on average 5.0) internal successors, (55), 11 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:03:39,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 08:03:39,123 INFO L93 Difference]: Finished difference Result 1391 states and 2095 transitions. [2024-11-17 08:03:39,123 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1391 states and 2095 transitions. [2024-11-17 08:03:39,128 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 157 [2024-11-17 08:03:39,132 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1391 states to 1306 states and 1938 transitions. [2024-11-17 08:03:39,132 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 135 [2024-11-17 08:03:39,132 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 135 [2024-11-17 08:03:39,132 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1306 states and 1938 transitions. [2024-11-17 08:03:39,132 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-17 08:03:39,132 INFO L218 hiAutomatonCegarLoop]: Abstraction has 1306 states and 1938 transitions. [2024-11-17 08:03:39,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1306 states and 1938 transitions. [2024-11-17 08:03:39,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1306 to 999. [2024-11-17 08:03:39,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 999 states, 999 states have (on average 1.4514514514514514) internal successors, (1450), 998 states have internal predecessors, (1450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:03:39,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 999 states to 999 states and 1450 transitions. [2024-11-17 08:03:39,144 INFO L240 hiAutomatonCegarLoop]: Abstraction has 999 states and 1450 transitions. [2024-11-17 08:03:39,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-17 08:03:39,144 INFO L425 stractBuchiCegarLoop]: Abstraction has 999 states and 1450 transitions. [2024-11-17 08:03:39,144 INFO L332 stractBuchiCegarLoop]: ======== Iteration 13 ============ [2024-11-17 08:03:39,144 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 999 states and 1450 transitions. [2024-11-17 08:03:39,147 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 144 [2024-11-17 08:03:39,147 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:03:39,147 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:03:39,148 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [10, 9, 9, 9, 8, 1, 1, 1] [2024-11-17 08:03:39,148 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [18, 18, 17, 17, 9, 9, 1, 1] [2024-11-17 08:03:39,148 INFO L745 eck$LassoCheckResult]: Stem: 13303#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 13304#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 13305#L11 assume true; 13301#L11-1 assume !!(main_~i~0#1 > 0); 13302#L12 assume 1 == main_~i~0#1;main_~up~0#1 := 1; 13722#L15 assume !(10 == main_~i~0#1); 13721#L18 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 13720#L11 assume true; 13719#L11-1 assume !!(main_~i~0#1 > 0); 13718#L12 assume !(1 == main_~i~0#1); 13717#L15 assume !(10 == main_~i~0#1); 13716#L18 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 13715#L11 assume true; 13714#L11-1 assume !!(main_~i~0#1 > 0); 13713#L12 assume !(1 == main_~i~0#1); 13712#L15 assume !(10 == main_~i~0#1); 13711#L18 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 13710#L11 assume true; 13709#L11-1 assume !!(main_~i~0#1 > 0); 13708#L12 assume !(1 == main_~i~0#1); 13707#L15 assume !(10 == main_~i~0#1); 13706#L18 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 13705#L11 assume true; 13704#L11-1 assume !!(main_~i~0#1 > 0); 13703#L12 assume !(1 == main_~i~0#1); 13702#L15 assume !(10 == main_~i~0#1); 13701#L18 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 13700#L11 assume true; 13699#L11-1 assume !!(main_~i~0#1 > 0); 13698#L12 assume !(1 == main_~i~0#1); 13697#L15 assume !(10 == main_~i~0#1); 13696#L18 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 13695#L11 assume true; 13694#L11-1 assume !!(main_~i~0#1 > 0); 13693#L12 assume !(1 == main_~i~0#1); 13692#L15 assume !(10 == main_~i~0#1); 13691#L18 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 13690#L11 assume true; 13689#L11-1 assume !!(main_~i~0#1 > 0); 13688#L12 assume !(1 == main_~i~0#1); 13687#L15 assume !(10 == main_~i~0#1); 13686#L18 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 13682#L11 assume true; 13685#L11-1 assume !!(main_~i~0#1 > 0); 13684#L12 assume !(1 == main_~i~0#1); 13683#L15 assume !(10 == main_~i~0#1); 13681#L18 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 13676#L11 assume true; 13677#L11-1 [2024-11-17 08:03:39,148 INFO L747 eck$LassoCheckResult]: Loop: 13677#L11-1 assume !!(main_~i~0#1 > 0); 13314#L12 assume !(1 == main_~i~0#1); 13315#L15 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 13357#L18 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 13310#L11 assume true; 13311#L11-1 assume !!(main_~i~0#1 > 0); 14233#L12 assume !(1 == main_~i~0#1); 14231#L15 assume !(10 == main_~i~0#1); 14229#L18 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 14227#L11 assume true; 14225#L11-1 assume !!(main_~i~0#1 > 0); 14223#L12 assume !(1 == main_~i~0#1); 14221#L15 assume !(10 == main_~i~0#1); 14219#L18 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 14217#L11 assume true; 14215#L11-1 assume !!(main_~i~0#1 > 0); 14213#L12 assume !(1 == main_~i~0#1); 14211#L15 assume !(10 == main_~i~0#1); 14209#L18 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 14207#L11 assume true; 14205#L11-1 assume !!(main_~i~0#1 > 0); 14203#L12 assume !(1 == main_~i~0#1); 14201#L15 assume !(10 == main_~i~0#1); 14199#L18 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 14197#L11 assume true; 14195#L11-1 assume !!(main_~i~0#1 > 0); 14193#L12 assume !(1 == main_~i~0#1); 14191#L15 assume !(10 == main_~i~0#1); 14189#L18 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 14187#L11 assume true; 14185#L11-1 assume !!(main_~i~0#1 > 0); 14183#L12 assume !(1 == main_~i~0#1); 14181#L15 assume !(10 == main_~i~0#1); 14179#L18 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 14177#L11 assume true; 14175#L11-1 assume !!(main_~i~0#1 > 0); 14173#L12 assume !(1 == main_~i~0#1); 14171#L15 assume !(10 == main_~i~0#1); 14169#L18 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 14167#L11 assume true; 14165#L11-1 assume !!(main_~i~0#1 > 0); 14163#L12 assume !(1 == main_~i~0#1); 14138#L15 assume !(10 == main_~i~0#1); 14161#L18 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 14159#L11 assume true; 14157#L11-1 assume !!(main_~i~0#1 > 0); 14137#L12 assume 1 == main_~i~0#1;main_~up~0#1 := 1; 14125#L15 assume !(10 == main_~i~0#1); 14121#L18 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 14122#L11 assume true; 14118#L11-1 assume !!(main_~i~0#1 > 0); 14119#L12 assume !(1 == main_~i~0#1); 14135#L15 assume !(10 == main_~i~0#1); 14113#L18 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 14114#L11 assume true; 14109#L11-1 assume !!(main_~i~0#1 > 0); 14110#L12 assume !(1 == main_~i~0#1); 14141#L15 assume !(10 == main_~i~0#1); 14154#L18 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 14153#L11 assume true; 14152#L11-1 assume !!(main_~i~0#1 > 0); 14139#L12 assume !(1 == main_~i~0#1); 14140#L15 assume !(10 == main_~i~0#1); 14099#L18 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 14100#L11 assume true; 14096#L11-1 assume !!(main_~i~0#1 > 0); 14097#L12 assume !(1 == main_~i~0#1); 13943#L15 assume !(10 == main_~i~0#1); 13941#L18 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 13940#L11 assume true; 13926#L11-1 assume !!(main_~i~0#1 > 0); 13927#L12 assume !(1 == main_~i~0#1); 14136#L15 assume !(10 == main_~i~0#1); 14145#L18 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 14144#L11 assume true; 13912#L11-1 assume !!(main_~i~0#1 > 0); 13913#L12 assume !(1 == main_~i~0#1); 14131#L15 assume !(10 == main_~i~0#1); 13904#L18 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 14151#L11 assume true; 13889#L11-1 assume !!(main_~i~0#1 > 0); 13890#L12 assume !(1 == main_~i~0#1); 14132#L15 assume !(10 == main_~i~0#1); 13882#L18 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 13319#L11 assume true; 13874#L11-1 assume !!(main_~i~0#1 > 0); 13875#L12 assume !(1 == main_~i~0#1); 13866#L15 assume !(10 == main_~i~0#1); 13729#L18 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 13724#L11 assume true; 13677#L11-1 [2024-11-17 08:03:39,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:03:39,149 INFO L85 PathProgramCache]: Analyzing trace with hash -822124826, now seen corresponding path program 2 times [2024-11-17 08:03:39,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:03:39,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340460563] [2024-11-17 08:03:39,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:03:39,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:03:39,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:03:39,152 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:03:39,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:03:39,155 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:03:39,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:03:39,156 INFO L85 PathProgramCache]: Analyzing trace with hash 268153412, now seen corresponding path program 5 times [2024-11-17 08:03:39,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:03:39,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405103003] [2024-11-17 08:03:39,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:03:39,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:03:39,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:03:39,161 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:03:39,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:03:39,166 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:03:39,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:03:39,166 INFO L85 PathProgramCache]: Analyzing trace with hash 2021516521, now seen corresponding path program 3 times [2024-11-17 08:03:39,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:03:39,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272334271] [2024-11-17 08:03:39,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:03:39,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:03:39,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:03:39,176 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:03:39,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:03:39,188 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:03:39,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:03:39,489 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:03:39,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:03:39,536 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 17.11 08:03:39 BoogieIcfgContainer [2024-11-17 08:03:39,536 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-17 08:03:39,537 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-17 08:03:39,537 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-17 08:03:39,537 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-17 08:03:39,537 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 08:03:32" (3/4) ... [2024-11-17 08:03:39,539 INFO L140 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-17 08:03:39,577 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-17 08:03:39,577 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-17 08:03:39,577 INFO L158 Benchmark]: Toolchain (without parser) took 8009.10ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 91.1MB in the beginning and 137.4MB in the end (delta: -46.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 08:03:39,577 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 167.8MB. Free memory is still 136.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 08:03:39,577 INFO L158 Benchmark]: CACSL2BoogieTranslator took 164.39ms. Allocated memory is still 167.8MB. Free memory was 90.8MB in the beginning and 79.7MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-17 08:03:39,577 INFO L158 Benchmark]: Boogie Procedure Inliner took 16.75ms. Allocated memory is still 167.8MB. Free memory was 79.7MB in the beginning and 78.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 08:03:39,578 INFO L158 Benchmark]: Boogie Preprocessor took 17.75ms. Allocated memory is still 167.8MB. Free memory was 78.2MB in the beginning and 76.9MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 08:03:39,578 INFO L158 Benchmark]: IcfgBuilder took 238.13ms. Allocated memory is still 167.8MB. Free memory was 76.9MB in the beginning and 139.2MB in the end (delta: -62.3MB). Peak memory consumption was 17.8MB. Max. memory is 16.1GB. [2024-11-17 08:03:39,578 INFO L158 Benchmark]: BuchiAutomizer took 7527.81ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 139.2MB in the beginning and 141.6MB in the end (delta: -2.4MB). Peak memory consumption was 31.9MB. Max. memory is 16.1GB. [2024-11-17 08:03:39,578 INFO L158 Benchmark]: Witness Printer took 40.23ms. Allocated memory is still 201.3MB. Free memory was 140.6MB in the beginning and 137.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-17 08:03:39,579 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 167.8MB. Free memory is still 136.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 164.39ms. Allocated memory is still 167.8MB. Free memory was 90.8MB in the beginning and 79.7MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 16.75ms. Allocated memory is still 167.8MB. Free memory was 79.7MB in the beginning and 78.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.75ms. Allocated memory is still 167.8MB. Free memory was 78.2MB in the beginning and 76.9MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 238.13ms. Allocated memory is still 167.8MB. Free memory was 76.9MB in the beginning and 139.2MB in the end (delta: -62.3MB). Peak memory consumption was 17.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 7527.81ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 139.2MB in the beginning and 141.6MB in the end (delta: -2.4MB). Peak memory consumption was 31.9MB. Max. memory is 16.1GB. * Witness Printer took 40.23ms. Allocated memory is still 201.3MB. Free memory was 140.6MB in the beginning and 137.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. 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 15 terminating modules (8 trivial, 5 deterministic, 2 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function (((long) -2 * i) + 3) and consists of 4 locations. One deterministic module has affine ranking function i and consists of 4 locations. One deterministic module has affine ranking function i and consists of 4 locations. One deterministic module has affine ranking function (((long) -2 * i) + 1) and consists of 5 locations. One deterministic module has affine ranking function i and consists of 5 locations. One nondeterministic module has affine ranking function (((long) -2 * i) + 19) and consists of 8 locations. One nondeterministic module has affine ranking function i and consists of 9 locations. 8 modules have a trivial ranking function, the largest among these consists of 11 locations. The remainder module has 999 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 7.4s and 13 iterations. TraceHistogramMax:18. Analysis of lassos took 4.6s. Construction of modules took 0.3s. Büchi inclusion checks took 2.2s. Highest rank in rank-based complementation 5. Minimization of det autom 1. Minimization of nondet autom 14. Automata minimization 0.1s AutomataMinimizationTime, 15 MinimizatonAttempts, 1408 StatesRemovedByMinimization, 14 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 [4, 1, 0, 1, 1]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 524/615 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 372 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 352 mSDsluCounter, 361 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 116 mSDsCounter, 78 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 640 IncrementalHoareTripleChecker+Invalid, 718 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 78 mSolverCounterUnsat, 245 mSDtfsCounter, 640 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI4 SFLT3 conc0 concLT2 SILN0 SILU0 SILI1 SILT1 lasso1 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax186 hnf100 lsp40 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq194 hnf90 smp91 dnf117 smp97 tf110 neg100 sie105 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 56ms VariablesStem: 1 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 13 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 7 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.7s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 11]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L6] int i; [L7] int up; [L8] i = __VERIFIER_nondet_int() [L9] up = 0 VAL [up=0] [L11] COND TRUE i > 0 VAL [i=1, up=0] [L12] COND TRUE i == 1 [L13] up = 1 VAL [i=1, up=1] [L15] COND FALSE !(i == 10) VAL [i=1, up=1] [L18] COND TRUE up == 1 [L19] i = i+1 VAL [i=2, up=1] [L11] COND TRUE i > 0 VAL [i=2, up=1] [L12] COND FALSE !(i == 1) VAL [i=2, up=1] [L15] COND FALSE !(i == 10) VAL [i=2, up=1] [L18] COND TRUE up == 1 [L19] i = i+1 VAL [i=3, up=1] [L11] COND TRUE i > 0 VAL [i=3, up=1] [L12] COND FALSE !(i == 1) VAL [i=3, up=1] [L15] COND FALSE !(i == 10) VAL [i=3, up=1] [L18] COND TRUE up == 1 [L19] i = i+1 VAL [i=4, up=1] [L11] COND TRUE i > 0 VAL [i=4, up=1] [L12] COND FALSE !(i == 1) VAL [i=4, up=1] [L15] COND FALSE !(i == 10) VAL [i=4, up=1] [L18] COND TRUE up == 1 [L19] i = i+1 VAL [i=5, up=1] [L11] COND TRUE i > 0 VAL [i=5, up=1] [L12] COND FALSE !(i == 1) VAL [i=5, up=1] [L15] COND FALSE !(i == 10) VAL [i=5, up=1] [L18] COND TRUE up == 1 [L19] i = i+1 VAL [i=6, up=1] [L11] COND TRUE i > 0 VAL [i=6, up=1] [L12] COND FALSE !(i == 1) VAL [i=6, up=1] [L15] COND FALSE !(i == 10) VAL [i=6, up=1] [L18] COND TRUE up == 1 [L19] i = i+1 VAL [i=7, up=1] [L11] COND TRUE i > 0 VAL [i=7, up=1] [L12] COND FALSE !(i == 1) VAL [i=7, up=1] [L15] COND FALSE !(i == 10) VAL [i=7, up=1] [L18] COND TRUE up == 1 [L19] i = i+1 VAL [i=8, up=1] [L11] COND TRUE i > 0 VAL [i=8, up=1] [L12] COND FALSE !(i == 1) VAL [i=8, up=1] [L15] COND FALSE !(i == 10) VAL [i=8, up=1] [L18] COND TRUE up == 1 [L19] i = i+1 VAL [i=9, up=1] [L11] COND TRUE i > 0 VAL [i=9, up=1] [L12] COND FALSE !(i == 1) VAL [i=9, up=1] [L15] COND FALSE !(i == 10) VAL [i=9, up=1] [L18] COND TRUE up == 1 [L19] i = i+1 VAL [i=10, up=1] Loop: [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND TRUE i == 10 [L16] up = 0 [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE i > 0 [L12] COND TRUE i == 1 [L13] up = 1 [L15] COND FALSE !(i == 10) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND TRUE up == 1 [L19] i = i+1 End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 11]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] int up; [L8] i = __VERIFIER_nondet_int() [L9] up = 0 VAL [up=0] [L11] COND TRUE i > 0 VAL [i=1, up=0] [L12] COND TRUE i == 1 [L13] up = 1 VAL [i=1, up=1] [L15] COND FALSE !(i == 10) VAL [i=1, up=1] [L18] COND TRUE up == 1 [L19] i = i+1 VAL [i=2, up=1] [L11] COND TRUE i > 0 VAL [i=2, up=1] [L12] COND FALSE !(i == 1) VAL [i=2, up=1] [L15] COND FALSE !(i == 10) VAL [i=2, up=1] [L18] COND TRUE up == 1 [L19] i = i+1 VAL [i=3, up=1] [L11] COND TRUE i > 0 VAL [i=3, up=1] [L12] COND FALSE !(i == 1) VAL [i=3, up=1] [L15] COND FALSE !(i == 10) VAL [i=3, up=1] [L18] COND TRUE up == 1 [L19] i = i+1 VAL [i=4, up=1] [L11] COND TRUE i > 0 VAL [i=4, up=1] [L12] COND FALSE !(i == 1) VAL [i=4, up=1] [L15] COND FALSE !(i == 10) VAL [i=4, up=1] [L18] COND TRUE up == 1 [L19] i = i+1 VAL [i=5, up=1] [L11] COND TRUE i > 0 VAL [i=5, up=1] [L12] COND FALSE !(i == 1) VAL [i=5, up=1] [L15] COND FALSE !(i == 10) VAL [i=5, up=1] [L18] COND TRUE up == 1 [L19] i = i+1 VAL [i=6, up=1] [L11] COND TRUE i > 0 VAL [i=6, up=1] [L12] COND FALSE !(i == 1) VAL [i=6, up=1] [L15] COND FALSE !(i == 10) VAL [i=6, up=1] [L18] COND TRUE up == 1 [L19] i = i+1 VAL [i=7, up=1] [L11] COND TRUE i > 0 VAL [i=7, up=1] [L12] COND FALSE !(i == 1) VAL [i=7, up=1] [L15] COND FALSE !(i == 10) VAL [i=7, up=1] [L18] COND TRUE up == 1 [L19] i = i+1 VAL [i=8, up=1] [L11] COND TRUE i > 0 VAL [i=8, up=1] [L12] COND FALSE !(i == 1) VAL [i=8, up=1] [L15] COND FALSE !(i == 10) VAL [i=8, up=1] [L18] COND TRUE up == 1 [L19] i = i+1 VAL [i=9, up=1] [L11] COND TRUE i > 0 VAL [i=9, up=1] [L12] COND FALSE !(i == 1) VAL [i=9, up=1] [L15] COND FALSE !(i == 10) VAL [i=9, up=1] [L18] COND TRUE up == 1 [L19] i = i+1 VAL [i=10, up=1] Loop: [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND TRUE i == 10 [L16] up = 0 [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE i > 0 [L12] COND TRUE i == 1 [L13] up = 1 [L15] COND FALSE !(i == 10) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND TRUE up == 1 [L19] i = i+1 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-11-17 08:03:39,602 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Ended with exit code 0 [2024-11-17 08:03:39,802 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Forceful destruction successful, exit code 0 [2024-11-17 08:03:40,003 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Ended with exit code 0 [2024-11-17 08:03:40,203 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Ended with exit code 0 [2024-11-17 08:03:40,404 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)