./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/termination.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/locks/test_locks_5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/locks/test_locks_5.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3f68d39859f114df07f2619f37e3285dcdf00194e62a42552d2c67e537c13685 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-25 00:01:42,764 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-25 00:01:42,851 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-10-25 00:01:42,858 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-25 00:01:42,859 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-25 00:01:42,892 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-25 00:01:42,894 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-25 00:01:42,895 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-25 00:01:42,896 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-25 00:01:42,898 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-25 00:01:42,898 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-25 00:01:42,899 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-25 00:01:42,899 INFO L153 SettingsManager]: * Use SBE=true [2024-10-25 00:01:42,899 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-10-25 00:01:42,900 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-10-25 00:01:42,901 INFO L153 SettingsManager]: * Use old map elimination=false [2024-10-25 00:01:42,901 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-10-25 00:01:42,904 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-10-25 00:01:42,905 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-10-25 00:01:42,905 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-25 00:01:42,905 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-10-25 00:01:42,906 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-25 00:01:42,906 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-25 00:01:42,906 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-25 00:01:42,906 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-25 00:01:42,907 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-10-25 00:01:42,907 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-10-25 00:01:42,907 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-10-25 00:01:42,907 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-25 00:01:42,907 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-25 00:01:42,908 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-25 00:01:42,908 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-25 00:01:42,908 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-10-25 00:01:42,908 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-25 00:01:42,908 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-25 00:01:42,909 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-25 00:01:42,909 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-25 00:01:42,909 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-25 00:01:42,912 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-10-25 00:01:42,912 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3f68d39859f114df07f2619f37e3285dcdf00194e62a42552d2c67e537c13685 [2024-10-25 00:01:43,185 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-25 00:01:43,215 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-25 00:01:43,219 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-25 00:01:43,221 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-25 00:01:43,221 INFO L274 PluginConnector]: CDTParser initialized [2024-10-25 00:01:43,223 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/locks/test_locks_5.c [2024-10-25 00:01:44,795 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-25 00:01:44,975 INFO L384 CDTParser]: Found 1 translation units. [2024-10-25 00:01:44,976 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/locks/test_locks_5.c [2024-10-25 00:01:44,983 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71e954572/81ce306a06d04b419ae4e2f914dafd0d/FLAGeadeb12bd [2024-10-25 00:01:44,997 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71e954572/81ce306a06d04b419ae4e2f914dafd0d [2024-10-25 00:01:44,999 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-25 00:01:45,000 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-25 00:01:45,002 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-25 00:01:45,002 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-25 00:01:45,008 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-25 00:01:45,009 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 12:01:44" (1/1) ... [2024-10-25 00:01:45,012 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15df7269 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:01:45, skipping insertion in model container [2024-10-25 00:01:45,012 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 12:01:44" (1/1) ... [2024-10-25 00:01:45,036 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-25 00:01:45,278 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-25 00:01:45,289 INFO L200 MainTranslator]: Completed pre-run [2024-10-25 00:01:45,306 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-25 00:01:45,323 INFO L204 MainTranslator]: Completed translation [2024-10-25 00:01:45,323 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:01:45 WrapperNode [2024-10-25 00:01:45,324 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-25 00:01:45,325 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-25 00:01:45,326 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-25 00:01:45,326 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-25 00:01:45,334 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:01:45" (1/1) ... [2024-10-25 00:01:45,343 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:01:45" (1/1) ... [2024-10-25 00:01:45,364 INFO L138 Inliner]: procedures = 12, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 83 [2024-10-25 00:01:45,364 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-25 00:01:45,365 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-25 00:01:45,365 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-25 00:01:45,365 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-25 00:01:45,376 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:01:45" (1/1) ... [2024-10-25 00:01:45,377 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:01:45" (1/1) ... [2024-10-25 00:01:45,379 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:01:45" (1/1) ... [2024-10-25 00:01:45,397 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-25 00:01:45,398 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:01:45" (1/1) ... [2024-10-25 00:01:45,398 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:01:45" (1/1) ... [2024-10-25 00:01:45,401 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:01:45" (1/1) ... [2024-10-25 00:01:45,408 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:01:45" (1/1) ... [2024-10-25 00:01:45,409 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:01:45" (1/1) ... [2024-10-25 00:01:45,410 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:01:45" (1/1) ... [2024-10-25 00:01:45,416 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-25 00:01:45,417 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-25 00:01:45,417 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-25 00:01:45,417 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-25 00:01:45,418 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:01:45" (1/1) ... [2024-10-25 00:01:45,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-25 00:01:45,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-25 00:01:45,459 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) [2024-10-25 00:01:45,463 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 [2024-10-25 00:01:45,513 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-25 00:01:45,513 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-25 00:01:45,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-25 00:01:45,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-25 00:01:45,584 INFO L238 CfgBuilder]: Building ICFG [2024-10-25 00:01:45,586 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-25 00:01:45,765 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-10-25 00:01:45,766 INFO L287 CfgBuilder]: Performing block encoding [2024-10-25 00:01:45,784 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-25 00:01:45,785 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-25 00:01:45,785 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 12:01:45 BoogieIcfgContainer [2024-10-25 00:01:45,785 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-25 00:01:45,786 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-10-25 00:01:45,787 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-10-25 00:01:45,791 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-10-25 00:01:45,791 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-25 00:01:45,793 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 25.10 12:01:44" (1/3) ... [2024-10-25 00:01:45,794 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@69d99a5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.10 12:01:45, skipping insertion in model container [2024-10-25 00:01:45,794 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-25 00:01:45,794 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:01:45" (2/3) ... [2024-10-25 00:01:45,794 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@69d99a5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.10 12:01:45, skipping insertion in model container [2024-10-25 00:01:45,795 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-25 00:01:45,795 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 12:01:45" (3/3) ... [2024-10-25 00:01:45,796 INFO L332 chiAutomizerObserver]: Analyzing ICFG test_locks_5.c [2024-10-25 00:01:45,854 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-10-25 00:01:45,855 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-10-25 00:01:45,855 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-10-25 00:01:45,855 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-10-25 00:01:45,855 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-10-25 00:01:45,855 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-10-25 00:01:45,856 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-10-25 00:01:45,856 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-10-25 00:01:45,861 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 25 states, 24 states have (on average 1.75) internal successors, (42), 24 states have internal predecessors, (42), 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) [2024-10-25 00:01:45,878 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 17 [2024-10-25 00:01:45,879 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-25 00:01:45,879 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-25 00:01:45,884 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-25 00:01:45,885 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-25 00:01:45,885 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-10-25 00:01:45,886 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 25 states, 24 states have (on average 1.75) internal successors, (42), 24 states have internal predecessors, (42), 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) [2024-10-25 00:01:45,888 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 17 [2024-10-25 00:01:45,889 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-25 00:01:45,889 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-25 00:01:45,890 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-25 00:01:45,890 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-25 00:01:45,897 INFO L745 eck$LassoCheckResult]: Stem: 24#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3); 6#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_~p1~0#1, main_~lk1~0#1, main_~p2~0#1, main_~lk2~0#1, main_~p3~0#1, main_~lk3~0#1, main_~p4~0#1, main_~lk4~0#1, main_~p5~0#1, main_~lk5~0#1, main_~cond~0#1;havoc main_#t~nondet4#1;main_~p1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~lk1~0#1;havoc main_#t~nondet5#1;main_~p2~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_~lk2~0#1;havoc main_#t~nondet6#1;main_~p3~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;havoc main_~lk3~0#1;havoc main_#t~nondet7#1;main_~p4~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~lk4~0#1;havoc main_#t~nondet8#1;main_~p5~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;havoc main_~lk5~0#1;havoc main_~cond~0#1; 12#L85-1true [2024-10-25 00:01:45,899 INFO L747 eck$LassoCheckResult]: Loop: 12#L85-1true assume !false;havoc main_#t~nondet9#1;main_~cond~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1; 23#L28true assume !(0 == main_~cond~0#1);main_~lk1~0#1 := 0;main_~lk2~0#1 := 0;main_~lk3~0#1 := 0;main_~lk4~0#1 := 0;main_~lk5~0#1 := 0; 13#L43true assume 0 != main_~p1~0#1;main_~lk1~0#1 := 1; 14#L43-2true assume 0 != main_~p2~0#1;main_~lk2~0#1 := 1; 19#L47-1true assume !(0 != main_~p3~0#1); 7#L51-1true assume 0 != main_~p4~0#1;main_~lk4~0#1 := 1; 8#L55-1true assume 0 != main_~p5~0#1;main_~lk5~0#1 := 1; 9#L59-1true assume !(0 != main_~p1~0#1); 15#L65-1true assume !(0 != main_~p2~0#1); 21#L70-1true assume !(0 != main_~p3~0#1); 22#L75-1true assume !(0 != main_~p4~0#1); 11#L80-1true assume !(0 != main_~p5~0#1); 12#L85-1true [2024-10-25 00:01:45,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-25 00:01:45,906 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-10-25 00:01:45,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-25 00:01:45,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715843036] [2024-10-25 00:01:45,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-25 00:01:45,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-25 00:01:46,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-25 00:01:46,001 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-25 00:01:46,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-25 00:01:46,039 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-25 00:01:46,044 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-25 00:01:46,044 INFO L85 PathProgramCache]: Analyzing trace with hash -2089480461, now seen corresponding path program 1 times [2024-10-25 00:01:46,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-25 00:01:46,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890488613] [2024-10-25 00:01:46,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-25 00:01:46,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-25 00:01:46,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-25 00:01:46,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-25 00:01:46,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-25 00:01:46,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890488613] [2024-10-25 00:01:46,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890488613] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-25 00:01:46,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-25 00:01:46,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-25 00:01:46,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573798928] [2024-10-25 00:01:46,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-25 00:01:46,139 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-10-25 00:01:46,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-25 00:01:46,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-25 00:01:46,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-25 00:01:46,173 INFO L87 Difference]: Start difference. First operand has 25 states, 24 states have (on average 1.75) internal successors, (42), 24 states have internal predecessors, (42), 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 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2024-10-25 00:01:46,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-25 00:01:46,203 INFO L93 Difference]: Finished difference Result 43 states and 69 transitions. [2024-10-25 00:01:46,204 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43 states and 69 transitions. [2024-10-25 00:01:46,206 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 33 [2024-10-25 00:01:46,209 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43 states to 35 states and 53 transitions. [2024-10-25 00:01:46,210 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 35 [2024-10-25 00:01:46,210 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 35 [2024-10-25 00:01:46,211 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 53 transitions. [2024-10-25 00:01:46,211 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-25 00:01:46,211 INFO L218 hiAutomatonCegarLoop]: Abstraction has 35 states and 53 transitions. [2024-10-25 00:01:46,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states and 53 transitions. [2024-10-25 00:01:46,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2024-10-25 00:01:46,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 35 states have (on average 1.5142857142857142) internal successors, (53), 34 states have internal predecessors, (53), 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) [2024-10-25 00:01:46,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 53 transitions. [2024-10-25 00:01:46,237 INFO L240 hiAutomatonCegarLoop]: Abstraction has 35 states and 53 transitions. [2024-10-25 00:01:46,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-25 00:01:46,242 INFO L425 stractBuchiCegarLoop]: Abstraction has 35 states and 53 transitions. [2024-10-25 00:01:46,242 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-10-25 00:01:46,242 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 35 states and 53 transitions. [2024-10-25 00:01:46,244 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 33 [2024-10-25 00:01:46,244 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-25 00:01:46,244 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-25 00:01:46,245 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-25 00:01:46,245 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-25 00:01:46,245 INFO L745 eck$LassoCheckResult]: Stem: 102#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3); 91#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_~p1~0#1, main_~lk1~0#1, main_~p2~0#1, main_~lk2~0#1, main_~p3~0#1, main_~lk3~0#1, main_~p4~0#1, main_~lk4~0#1, main_~p5~0#1, main_~lk5~0#1, main_~cond~0#1;havoc main_#t~nondet4#1;main_~p1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~lk1~0#1;havoc main_#t~nondet5#1;main_~p2~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_~lk2~0#1;havoc main_#t~nondet6#1;main_~p3~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;havoc main_~lk3~0#1;havoc main_#t~nondet7#1;main_~p4~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~lk4~0#1;havoc main_#t~nondet8#1;main_~p5~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;havoc main_~lk5~0#1;havoc main_~cond~0#1; 92#L85-1 [2024-10-25 00:01:46,245 INFO L747 eck$LassoCheckResult]: Loop: 92#L85-1 assume !false;havoc main_#t~nondet9#1;main_~cond~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1; 100#L28 assume !(0 == main_~cond~0#1);main_~lk1~0#1 := 0;main_~lk2~0#1 := 0;main_~lk3~0#1 := 0;main_~lk4~0#1 := 0;main_~lk5~0#1 := 0; 101#L43 assume !(0 != main_~p1~0#1); 84#L43-2 assume 0 != main_~p2~0#1;main_~lk2~0#1 := 1; 85#L47-1 assume !(0 != main_~p3~0#1); 93#L51-1 assume 0 != main_~p4~0#1;main_~lk4~0#1 := 1; 94#L55-1 assume 0 != main_~p5~0#1;main_~lk5~0#1 := 1; 95#L59-1 assume !(0 != main_~p1~0#1); 86#L65-1 assume !(0 != main_~p2~0#1); 87#L70-1 assume !(0 != main_~p3~0#1); 97#L75-1 assume !(0 != main_~p4~0#1); 107#L80-1 assume !(0 != main_~p5~0#1); 92#L85-1 [2024-10-25 00:01:46,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-25 00:01:46,246 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2024-10-25 00:01:46,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-25 00:01:46,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020880722] [2024-10-25 00:01:46,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-25 00:01:46,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-25 00:01:46,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-25 00:01:46,257 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-25 00:01:46,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-25 00:01:46,268 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-25 00:01:46,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-25 00:01:46,269 INFO L85 PathProgramCache]: Analyzing trace with hash 1812459825, now seen corresponding path program 1 times [2024-10-25 00:01:46,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-25 00:01:46,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012619371] [2024-10-25 00:01:46,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-25 00:01:46,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-25 00:01:46,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-25 00:01:46,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-25 00:01:46,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-25 00:01:46,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012619371] [2024-10-25 00:01:46,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012619371] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-25 00:01:46,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-25 00:01:46,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-25 00:01:46,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654473306] [2024-10-25 00:01:46,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-25 00:01:46,318 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-10-25 00:01:46,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-25 00:01:46,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-25 00:01:46,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-25 00:01:46,319 INFO L87 Difference]: Start difference. First operand 35 states and 53 transitions. cyclomatic complexity: 20 Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2024-10-25 00:01:46,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-25 00:01:46,346 INFO L93 Difference]: Finished difference Result 66 states and 98 transitions. [2024-10-25 00:01:46,347 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 66 states and 98 transitions. [2024-10-25 00:01:46,349 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 64 [2024-10-25 00:01:46,350 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 66 states to 66 states and 98 transitions. [2024-10-25 00:01:46,350 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 66 [2024-10-25 00:01:46,350 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 66 [2024-10-25 00:01:46,351 INFO L73 IsDeterministic]: Start isDeterministic. Operand 66 states and 98 transitions. [2024-10-25 00:01:46,351 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-25 00:01:46,351 INFO L218 hiAutomatonCegarLoop]: Abstraction has 66 states and 98 transitions. [2024-10-25 00:01:46,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states and 98 transitions. [2024-10-25 00:01:46,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2024-10-25 00:01:46,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 66 states have (on average 1.4848484848484849) internal successors, (98), 65 states have internal predecessors, (98), 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) [2024-10-25 00:01:46,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 98 transitions. [2024-10-25 00:01:46,358 INFO L240 hiAutomatonCegarLoop]: Abstraction has 66 states and 98 transitions. [2024-10-25 00:01:46,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-25 00:01:46,360 INFO L425 stractBuchiCegarLoop]: Abstraction has 66 states and 98 transitions. [2024-10-25 00:01:46,360 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-10-25 00:01:46,360 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 66 states and 98 transitions. [2024-10-25 00:01:46,361 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 64 [2024-10-25 00:01:46,362 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-25 00:01:46,362 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-25 00:01:46,362 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-25 00:01:46,362 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-25 00:01:46,363 INFO L745 eck$LassoCheckResult]: Stem: 209#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3); 198#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_~p1~0#1, main_~lk1~0#1, main_~p2~0#1, main_~lk2~0#1, main_~p3~0#1, main_~lk3~0#1, main_~p4~0#1, main_~lk4~0#1, main_~p5~0#1, main_~lk5~0#1, main_~cond~0#1;havoc main_#t~nondet4#1;main_~p1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~lk1~0#1;havoc main_#t~nondet5#1;main_~p2~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_~lk2~0#1;havoc main_#t~nondet6#1;main_~p3~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;havoc main_~lk3~0#1;havoc main_#t~nondet7#1;main_~p4~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~lk4~0#1;havoc main_#t~nondet8#1;main_~p5~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;havoc main_~lk5~0#1;havoc main_~cond~0#1; 199#L85-1 [2024-10-25 00:01:46,363 INFO L747 eck$LassoCheckResult]: Loop: 199#L85-1 assume !false;havoc main_#t~nondet9#1;main_~cond~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1; 226#L28 assume !(0 == main_~cond~0#1);main_~lk1~0#1 := 0;main_~lk2~0#1 := 0;main_~lk3~0#1 := 0;main_~lk4~0#1 := 0;main_~lk5~0#1 := 0; 224#L43 assume !(0 != main_~p1~0#1); 221#L43-2 assume !(0 != main_~p2~0#1); 220#L47-1 assume !(0 != main_~p3~0#1); 218#L51-1 assume 0 != main_~p4~0#1;main_~lk4~0#1 := 1; 216#L55-1 assume 0 != main_~p5~0#1;main_~lk5~0#1 := 1; 215#L59-1 assume !(0 != main_~p1~0#1); 210#L65-1 assume !(0 != main_~p2~0#1); 211#L70-1 assume !(0 != main_~p3~0#1); 235#L75-1 assume !(0 != main_~p4~0#1); 231#L80-1 assume !(0 != main_~p5~0#1); 199#L85-1 [2024-10-25 00:01:46,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-25 00:01:46,364 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 3 times [2024-10-25 00:01:46,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-25 00:01:46,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546866905] [2024-10-25 00:01:46,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-25 00:01:46,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-25 00:01:46,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-25 00:01:46,373 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-25 00:01:46,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-25 00:01:46,380 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-25 00:01:46,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-25 00:01:46,381 INFO L85 PathProgramCache]: Analyzing trace with hash -1802449101, now seen corresponding path program 1 times [2024-10-25 00:01:46,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-25 00:01:46,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319033365] [2024-10-25 00:01:46,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-25 00:01:46,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-25 00:01:46,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-25 00:01:46,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-25 00:01:46,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-25 00:01:46,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319033365] [2024-10-25 00:01:46,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319033365] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-25 00:01:46,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-25 00:01:46,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-25 00:01:46,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816525096] [2024-10-25 00:01:46,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-25 00:01:46,426 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-10-25 00:01:46,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-25 00:01:46,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-25 00:01:46,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-25 00:01:46,427 INFO L87 Difference]: Start difference. First operand 66 states and 98 transitions. cyclomatic complexity: 36 Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2024-10-25 00:01:46,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-25 00:01:46,452 INFO L93 Difference]: Finished difference Result 126 states and 182 transitions. [2024-10-25 00:01:46,453 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 126 states and 182 transitions. [2024-10-25 00:01:46,456 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 124 [2024-10-25 00:01:46,458 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 126 states to 126 states and 182 transitions. [2024-10-25 00:01:46,458 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 126 [2024-10-25 00:01:46,459 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 126 [2024-10-25 00:01:46,459 INFO L73 IsDeterministic]: Start isDeterministic. Operand 126 states and 182 transitions. [2024-10-25 00:01:46,460 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-25 00:01:46,460 INFO L218 hiAutomatonCegarLoop]: Abstraction has 126 states and 182 transitions. [2024-10-25 00:01:46,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states and 182 transitions. [2024-10-25 00:01:46,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2024-10-25 00:01:46,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 126 states have (on average 1.4444444444444444) internal successors, (182), 125 states have internal predecessors, (182), 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) [2024-10-25 00:01:46,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 182 transitions. [2024-10-25 00:01:46,475 INFO L240 hiAutomatonCegarLoop]: Abstraction has 126 states and 182 transitions. [2024-10-25 00:01:46,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-25 00:01:46,476 INFO L425 stractBuchiCegarLoop]: Abstraction has 126 states and 182 transitions. [2024-10-25 00:01:46,477 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-10-25 00:01:46,477 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 126 states and 182 transitions. [2024-10-25 00:01:46,479 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 124 [2024-10-25 00:01:46,479 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-25 00:01:46,479 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-25 00:01:46,480 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-25 00:01:46,480 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-25 00:01:46,480 INFO L745 eck$LassoCheckResult]: Stem: 408#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3); 395#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_~p1~0#1, main_~lk1~0#1, main_~p2~0#1, main_~lk2~0#1, main_~p3~0#1, main_~lk3~0#1, main_~p4~0#1, main_~lk4~0#1, main_~p5~0#1, main_~lk5~0#1, main_~cond~0#1;havoc main_#t~nondet4#1;main_~p1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~lk1~0#1;havoc main_#t~nondet5#1;main_~p2~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_~lk2~0#1;havoc main_#t~nondet6#1;main_~p3~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;havoc main_~lk3~0#1;havoc main_#t~nondet7#1;main_~p4~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~lk4~0#1;havoc main_#t~nondet8#1;main_~p5~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;havoc main_~lk5~0#1;havoc main_~cond~0#1; 396#L85-1 [2024-10-25 00:01:46,480 INFO L747 eck$LassoCheckResult]: Loop: 396#L85-1 assume !false;havoc main_#t~nondet9#1;main_~cond~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1; 445#L28 assume !(0 == main_~cond~0#1);main_~lk1~0#1 := 0;main_~lk2~0#1 := 0;main_~lk3~0#1 := 0;main_~lk4~0#1 := 0;main_~lk5~0#1 := 0; 442#L43 assume !(0 != main_~p1~0#1); 438#L43-2 assume !(0 != main_~p2~0#1); 436#L47-1 assume !(0 != main_~p3~0#1); 422#L51-1 assume !(0 != main_~p4~0#1); 423#L55-1 assume 0 != main_~p5~0#1;main_~lk5~0#1 := 1; 463#L59-1 assume !(0 != main_~p1~0#1); 461#L65-1 assume !(0 != main_~p2~0#1); 460#L70-1 assume !(0 != main_~p3~0#1); 454#L75-1 assume !(0 != main_~p4~0#1); 451#L80-1 assume !(0 != main_~p5~0#1); 396#L85-1 [2024-10-25 00:01:46,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-25 00:01:46,481 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 4 times [2024-10-25 00:01:46,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-25 00:01:46,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186839327] [2024-10-25 00:01:46,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-25 00:01:46,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-25 00:01:46,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-25 00:01:46,489 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-25 00:01:46,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-25 00:01:46,494 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-25 00:01:46,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-25 00:01:46,495 INFO L85 PathProgramCache]: Analyzing trace with hash -27441739, now seen corresponding path program 1 times [2024-10-25 00:01:46,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-25 00:01:46,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727638359] [2024-10-25 00:01:46,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-25 00:01:46,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-25 00:01:46,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-25 00:01:46,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-25 00:01:46,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-25 00:01:46,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727638359] [2024-10-25 00:01:46,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727638359] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-25 00:01:46,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-25 00:01:46,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-25 00:01:46,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722596283] [2024-10-25 00:01:46,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-25 00:01:46,540 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-10-25 00:01:46,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-25 00:01:46,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-25 00:01:46,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-25 00:01:46,542 INFO L87 Difference]: Start difference. First operand 126 states and 182 transitions. cyclomatic complexity: 64 Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2024-10-25 00:01:46,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-25 00:01:46,560 INFO L93 Difference]: Finished difference Result 242 states and 338 transitions. [2024-10-25 00:01:46,561 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 242 states and 338 transitions. [2024-10-25 00:01:46,564 INFO L131 ngComponentsAnalysis]: Automaton has 16 accepting balls. 240 [2024-10-25 00:01:46,566 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 242 states to 242 states and 338 transitions. [2024-10-25 00:01:46,566 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 242 [2024-10-25 00:01:46,567 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 242 [2024-10-25 00:01:46,567 INFO L73 IsDeterministic]: Start isDeterministic. Operand 242 states and 338 transitions. [2024-10-25 00:01:46,569 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-25 00:01:46,569 INFO L218 hiAutomatonCegarLoop]: Abstraction has 242 states and 338 transitions. [2024-10-25 00:01:46,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states and 338 transitions. [2024-10-25 00:01:46,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2024-10-25 00:01:46,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 242 states have (on average 1.396694214876033) internal successors, (338), 241 states have internal predecessors, (338), 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) [2024-10-25 00:01:46,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 338 transitions. [2024-10-25 00:01:46,585 INFO L240 hiAutomatonCegarLoop]: Abstraction has 242 states and 338 transitions. [2024-10-25 00:01:46,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-25 00:01:46,586 INFO L425 stractBuchiCegarLoop]: Abstraction has 242 states and 338 transitions. [2024-10-25 00:01:46,586 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-10-25 00:01:46,586 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 242 states and 338 transitions. [2024-10-25 00:01:46,588 INFO L131 ngComponentsAnalysis]: Automaton has 16 accepting balls. 240 [2024-10-25 00:01:46,588 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-25 00:01:46,589 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-25 00:01:46,589 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-25 00:01:46,589 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-25 00:01:46,590 INFO L745 eck$LassoCheckResult]: Stem: 782#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3); 769#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_~p1~0#1, main_~lk1~0#1, main_~p2~0#1, main_~lk2~0#1, main_~p3~0#1, main_~lk3~0#1, main_~p4~0#1, main_~lk4~0#1, main_~p5~0#1, main_~lk5~0#1, main_~cond~0#1;havoc main_#t~nondet4#1;main_~p1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~lk1~0#1;havoc main_#t~nondet5#1;main_~p2~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_~lk2~0#1;havoc main_#t~nondet6#1;main_~p3~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;havoc main_~lk3~0#1;havoc main_#t~nondet7#1;main_~p4~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~lk4~0#1;havoc main_#t~nondet8#1;main_~p5~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;havoc main_~lk5~0#1;havoc main_~cond~0#1; 770#L85-1 [2024-10-25 00:01:46,590 INFO L747 eck$LassoCheckResult]: Loop: 770#L85-1 assume !false;havoc main_#t~nondet9#1;main_~cond~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1; 810#L28 assume !(0 == main_~cond~0#1);main_~lk1~0#1 := 0;main_~lk2~0#1 := 0;main_~lk3~0#1 := 0;main_~lk4~0#1 := 0;main_~lk5~0#1 := 0; 805#L43 assume !(0 != main_~p1~0#1); 806#L43-2 assume !(0 != main_~p2~0#1); 848#L47-1 assume !(0 != main_~p3~0#1); 844#L51-1 assume !(0 != main_~p4~0#1); 840#L55-1 assume !(0 != main_~p5~0#1); 838#L59-1 assume !(0 != main_~p1~0#1); 835#L65-1 assume !(0 != main_~p2~0#1); 832#L70-1 assume !(0 != main_~p3~0#1); 825#L75-1 assume !(0 != main_~p4~0#1); 819#L80-1 assume !(0 != main_~p5~0#1); 770#L85-1 [2024-10-25 00:01:46,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-25 00:01:46,591 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 5 times [2024-10-25 00:01:46,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-25 00:01:46,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865017996] [2024-10-25 00:01:46,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-25 00:01:46,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-25 00:01:46,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-25 00:01:46,601 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-25 00:01:46,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-25 00:01:46,614 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-25 00:01:46,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-25 00:01:46,615 INFO L85 PathProgramCache]: Analyzing trace with hash 29816563, now seen corresponding path program 1 times [2024-10-25 00:01:46,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-25 00:01:46,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290151047] [2024-10-25 00:01:46,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-25 00:01:46,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-25 00:01:46,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-25 00:01:46,631 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-25 00:01:46,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-25 00:01:46,637 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-25 00:01:46,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-25 00:01:46,638 INFO L85 PathProgramCache]: Analyzing trace with hash 1243965365, now seen corresponding path program 1 times [2024-10-25 00:01:46,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-25 00:01:46,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937311549] [2024-10-25 00:01:46,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-25 00:01:46,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-25 00:01:46,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-25 00:01:46,647 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-25 00:01:46,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-25 00:01:46,659 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-25 00:01:47,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-25 00:01:47,023 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-25 00:01:47,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-25 00:01:47,060 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 25.10 12:01:47 BoogieIcfgContainer [2024-10-25 00:01:47,061 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-10-25 00:01:47,061 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-25 00:01:47,062 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-25 00:01:47,062 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-25 00:01:47,062 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 12:01:45" (3/4) ... [2024-10-25 00:01:47,064 INFO L136 WitnessPrinter]: Generating witness for non-termination counterexample [2024-10-25 00:01:47,115 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-25 00:01:47,118 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-25 00:01:47,119 INFO L158 Benchmark]: Toolchain (without parser) took 2118.73ms. Allocated memory is still 178.3MB. Free memory was 109.5MB in the beginning and 134.4MB in the end (delta: -24.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-25 00:01:47,120 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 178.3MB. Free memory is still 154.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-25 00:01:47,120 INFO L158 Benchmark]: CACSL2BoogieTranslator took 322.84ms. Allocated memory is still 178.3MB. Free memory was 109.2MB in the beginning and 142.4MB in the end (delta: -33.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-10-25 00:01:47,121 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.72ms. Allocated memory is still 178.3MB. Free memory was 142.4MB in the beginning and 140.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-25 00:01:47,121 INFO L158 Benchmark]: Boogie Preprocessor took 51.01ms. Allocated memory is still 178.3MB. Free memory was 140.8MB in the beginning and 139.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-25 00:01:47,122 INFO L158 Benchmark]: RCFGBuilder took 368.91ms. Allocated memory is still 178.3MB. Free memory was 139.2MB in the beginning and 127.7MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-25 00:01:47,122 INFO L158 Benchmark]: BuchiAutomizer took 1274.41ms. Allocated memory is still 178.3MB. Free memory was 127.1MB in the beginning and 136.5MB in the end (delta: -9.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-25 00:01:47,122 INFO L158 Benchmark]: Witness Printer took 57.12ms. Allocated memory is still 178.3MB. Free memory was 136.5MB in the beginning and 134.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-25 00:01:47,124 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 178.3MB. Free memory is still 154.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 322.84ms. Allocated memory is still 178.3MB. Free memory was 109.2MB in the beginning and 142.4MB in the end (delta: -33.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.72ms. Allocated memory is still 178.3MB. Free memory was 142.4MB in the beginning and 140.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.01ms. Allocated memory is still 178.3MB. Free memory was 140.8MB in the beginning and 139.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 368.91ms. Allocated memory is still 178.3MB. Free memory was 139.2MB in the beginning and 127.7MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 1274.41ms. Allocated memory is still 178.3MB. Free memory was 127.1MB in the beginning and 136.5MB in the end (delta: -9.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 57.12ms. Allocated memory is still 178.3MB. Free memory was 136.5MB in the beginning and 134.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (4 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.4 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 242 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.1s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 0.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 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 [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 87 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 87 mSDsluCounter, 275 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 99 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 22 IncrementalHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 176 mSDtfsCounter, 22 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI4 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 26]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L8] int p1 = __VERIFIER_nondet_int(); [L9] int lk1; [L11] int p2 = __VERIFIER_nondet_int(); [L12] int lk2; [L14] int p3 = __VERIFIER_nondet_int(); [L15] int lk3; [L17] int p4 = __VERIFIER_nondet_int(); [L18] int lk4; [L20] int p5 = __VERIFIER_nondet_int(); [L21] int lk5; [L24] int cond; Loop: [L26] COND TRUE 1 [L27] cond = __VERIFIER_nondet_int() [L28] COND FALSE !(cond == 0) [L31] lk1 = 0 [L33] lk2 = 0 [L35] lk3 = 0 [L37] lk4 = 0 [L39] lk5 = 0 [L43] COND FALSE !(p1 != 0) [L47] COND FALSE !(p2 != 0) [L51] COND FALSE !(p3 != 0) [L55] COND FALSE !(p4 != 0) [L59] COND FALSE !(p5 != 0) [L65] COND FALSE !(p1 != 0) [L70] COND FALSE !(p2 != 0) [L75] COND FALSE !(p3 != 0) [L80] COND FALSE !(p4 != 0) [L85] COND FALSE !(p5 != 0) End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 26]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L8] int p1 = __VERIFIER_nondet_int(); [L9] int lk1; [L11] int p2 = __VERIFIER_nondet_int(); [L12] int lk2; [L14] int p3 = __VERIFIER_nondet_int(); [L15] int lk3; [L17] int p4 = __VERIFIER_nondet_int(); [L18] int lk4; [L20] int p5 = __VERIFIER_nondet_int(); [L21] int lk5; [L24] int cond; Loop: [L26] COND TRUE 1 [L27] cond = __VERIFIER_nondet_int() [L28] COND FALSE !(cond == 0) [L31] lk1 = 0 [L33] lk2 = 0 [L35] lk3 = 0 [L37] lk4 = 0 [L39] lk5 = 0 [L43] COND FALSE !(p1 != 0) [L47] COND FALSE !(p2 != 0) [L51] COND FALSE !(p3 != 0) [L55] COND FALSE !(p4 != 0) [L59] COND FALSE !(p5 != 0) [L65] COND FALSE !(p1 != 0) [L70] COND FALSE !(p2 != 0) [L75] COND FALSE !(p3 != 0) [L80] COND FALSE !(p4 != 0) [L85] COND FALSE !(p5 != 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-10-25 00:01:47,150 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)