./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/openssl-simplified/s3_srvr_1b.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/openssl-simplified/s3_srvr_1b.cil.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 153b6d90c91de27e09ed3c918b0b1be779b258e790f6fc392e7d5f390719c2db --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-09 07:00:30,238 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-09 07:00:30,291 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2025-03-09 07:00:30,296 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-09 07:00:30,296 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-09 07:00:30,296 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2025-03-09 07:00:30,319 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-09 07:00:30,319 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-09 07:00:30,319 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-09 07:00:30,320 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-09 07:00:30,320 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-09 07:00:30,321 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-09 07:00:30,321 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-09 07:00:30,321 INFO L153 SettingsManager]: * Use SBE=true [2025-03-09 07:00:30,321 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-03-09 07:00:30,322 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-03-09 07:00:30,322 INFO L153 SettingsManager]: * Use old map elimination=false [2025-03-09 07:00:30,322 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-03-09 07:00:30,322 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-03-09 07:00:30,322 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-03-09 07:00:30,322 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-09 07:00:30,322 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-03-09 07:00:30,322 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-09 07:00:30,322 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-09 07:00:30,322 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-09 07:00:30,322 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-09 07:00:30,322 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-03-09 07:00:30,323 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-03-09 07:00:30,323 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-03-09 07:00:30,323 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-09 07:00:30,323 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-09 07:00:30,323 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-09 07:00:30,323 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-03-09 07:00:30,323 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-09 07:00:30,323 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-09 07:00:30,324 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-09 07:00:30,324 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-09 07:00:30,324 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-09 07:00:30,324 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-09 07:00:30,324 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-03-09 07:00:30,324 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 153b6d90c91de27e09ed3c918b0b1be779b258e790f6fc392e7d5f390719c2db [2025-03-09 07:00:30,551 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-09 07:00:30,556 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-09 07:00:30,558 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-09 07:00:30,559 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-09 07:00:30,559 INFO L274 PluginConnector]: CDTParser initialized [2025-03-09 07:00:30,561 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/openssl-simplified/s3_srvr_1b.cil.c [2025-03-09 07:00:31,658 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2b66d9d4/b7bcbe5f15d1409d80d77f1b912775ad/FLAGdd26f1a0e [2025-03-09 07:00:31,864 INFO L384 CDTParser]: Found 1 translation units. [2025-03-09 07:00:31,865 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/openssl-simplified/s3_srvr_1b.cil.c [2025-03-09 07:00:31,874 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2b66d9d4/b7bcbe5f15d1409d80d77f1b912775ad/FLAGdd26f1a0e [2025-03-09 07:00:32,238 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2b66d9d4/b7bcbe5f15d1409d80d77f1b912775ad [2025-03-09 07:00:32,240 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-09 07:00:32,241 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-09 07:00:32,242 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-09 07:00:32,242 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-09 07:00:32,246 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-09 07:00:32,246 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 07:00:32" (1/1) ... [2025-03-09 07:00:32,247 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d08bdda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 07:00:32, skipping insertion in model container [2025-03-09 07:00:32,247 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 07:00:32" (1/1) ... [2025-03-09 07:00:32,258 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-09 07:00:32,365 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 07:00:32,373 INFO L200 MainTranslator]: Completed pre-run [2025-03-09 07:00:32,388 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 07:00:32,400 INFO L204 MainTranslator]: Completed translation [2025-03-09 07:00:32,400 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 07:00:32 WrapperNode [2025-03-09 07:00:32,400 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-09 07:00:32,401 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-09 07:00:32,401 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-09 07:00:32,401 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-09 07:00:32,406 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 07:00:32" (1/1) ... [2025-03-09 07:00:32,411 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 07:00:32" (1/1) ... [2025-03-09 07:00:32,422 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 71 [2025-03-09 07:00:32,423 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-09 07:00:32,423 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-09 07:00:32,424 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-09 07:00:32,424 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-09 07:00:32,429 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 07:00:32" (1/1) ... [2025-03-09 07:00:32,429 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 07:00:32" (1/1) ... [2025-03-09 07:00:32,430 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 07:00:32" (1/1) ... [2025-03-09 07:00:32,438 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-03-09 07:00:32,438 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 07:00:32" (1/1) ... [2025-03-09 07:00:32,439 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 07:00:32" (1/1) ... [2025-03-09 07:00:32,442 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 07:00:32" (1/1) ... [2025-03-09 07:00:32,446 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 07:00:32" (1/1) ... [2025-03-09 07:00:32,446 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 07:00:32" (1/1) ... [2025-03-09 07:00:32,447 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 07:00:32" (1/1) ... [2025-03-09 07:00:32,448 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-09 07:00:32,448 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-09 07:00:32,448 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-09 07:00:32,448 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-09 07:00:32,449 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 07:00:32" (1/1) ... [2025-03-09 07:00:32,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 07:00:32,466 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 07:00:32,479 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-09 07:00:32,482 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2025-03-09 07:00:32,501 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-09 07:00:32,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-09 07:00:32,501 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-09 07:00:32,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-09 07:00:32,537 INFO L256 CfgBuilder]: Building ICFG [2025-03-09 07:00:32,538 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-09 07:00:32,643 INFO L? ?]: Removed 15 outVars from TransFormulas that were not future-live. [2025-03-09 07:00:32,643 INFO L307 CfgBuilder]: Performing block encoding [2025-03-09 07:00:32,649 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-09 07:00:32,649 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-09 07:00:32,650 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 07:00:32 BoogieIcfgContainer [2025-03-09 07:00:32,650 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-09 07:00:32,650 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-03-09 07:00:32,650 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-03-09 07:00:32,654 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-03-09 07:00:32,654 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-09 07:00:32,654 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 09.03 07:00:32" (1/3) ... [2025-03-09 07:00:32,655 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2b21abe9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.03 07:00:32, skipping insertion in model container [2025-03-09 07:00:32,655 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-09 07:00:32,655 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 07:00:32" (2/3) ... [2025-03-09 07:00:32,655 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2b21abe9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.03 07:00:32, skipping insertion in model container [2025-03-09 07:00:32,655 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-09 07:00:32,655 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 07:00:32" (3/3) ... [2025-03-09 07:00:32,656 INFO L363 chiAutomizerObserver]: Analyzing ICFG s3_srvr_1b.cil.c [2025-03-09 07:00:32,694 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-03-09 07:00:32,695 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-03-09 07:00:32,695 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-03-09 07:00:32,695 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-03-09 07:00:32,695 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-03-09 07:00:32,695 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-03-09 07:00:32,696 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-03-09 07:00:32,696 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-03-09 07:00:32,700 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 23 states, 22 states have (on average 1.6818181818181819) internal successors, (37), 22 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 07:00:32,711 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 15 [2025-03-09 07:00:32,711 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-09 07:00:32,711 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-09 07:00:32,715 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-03-09 07:00:32,715 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2025-03-09 07:00:32,715 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-03-09 07:00:32,716 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 23 states, 22 states have (on average 1.6818181818181819) internal successors, (37), 22 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 07:00:32,717 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 15 [2025-03-09 07:00:32,717 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-09 07:00:32,717 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-09 07:00:32,718 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-03-09 07:00:32,718 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2025-03-09 07:00:32,723 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_~s__state~0#1, main_~s__hit~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;havoc main_#t~nondet4#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0;" [2025-03-09 07:00:32,723 INFO L754 eck$LassoCheckResult]: Loop: "assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2);" "assume 8466 == main_~s__state~0#1;" "assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2;" "assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8656;" [2025-03-09 07:00:32,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 07:00:32,726 INFO L85 PathProgramCache]: Analyzing trace with hash 2560, now seen corresponding path program 1 times [2025-03-09 07:00:32,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 07:00:32,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602220058] [2025-03-09 07:00:32,732 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 07:00:32,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 07:00:32,778 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-03-09 07:00:32,787 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-03-09 07:00:32,788 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:00:32,788 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 07:00:32,788 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 07:00:32,793 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-03-09 07:00:32,796 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-03-09 07:00:32,796 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:00:32,796 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 07:00:32,808 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 07:00:32,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 07:00:32,810 INFO L85 PathProgramCache]: Analyzing trace with hash 2366107, now seen corresponding path program 1 times [2025-03-09 07:00:32,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 07:00:32,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118345935] [2025-03-09 07:00:32,810 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 07:00:32,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 07:00:32,815 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-09 07:00:32,819 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-09 07:00:32,820 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:00:32,820 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 07:00:32,820 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 07:00:32,821 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-09 07:00:32,823 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-09 07:00:32,824 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:00:32,824 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 07:00:32,825 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 07:00:32,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 07:00:32,827 INFO L85 PathProgramCache]: Analyzing trace with hash -1929310950, now seen corresponding path program 1 times [2025-03-09 07:00:32,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 07:00:32,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433062978] [2025-03-09 07:00:32,827 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 07:00:32,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 07:00:32,830 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-09 07:00:32,836 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-09 07:00:32,837 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:00:32,837 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 07:00:32,837 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 07:00:32,841 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-09 07:00:32,845 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-09 07:00:32,846 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:00:32,847 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 07:00:32,848 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 07:00:32,936 INFO L204 LassoAnalysis]: Preferences: [2025-03-09 07:00:32,936 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-09 07:00:32,937 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-09 07:00:32,937 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-09 07:00:32,937 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-03-09 07:00:32,937 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 07:00:32,937 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-09 07:00:32,937 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-09 07:00:32,937 INFO L132 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration1_Loop [2025-03-09 07:00:32,938 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-09 07:00:32,938 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-09 07:00:32,946 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-09 07:00:32,954 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-09 07:00:32,959 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-09 07:00:33,016 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-09 07:00:33,017 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-03-09 07:00:33,018 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 07:00:33,018 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 07:00:33,021 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-09 07:00:33,022 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2025-03-09 07:00:33,023 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-09 07:00:33,024 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-09 07:00:33,047 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-09 07:00:33,047 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~s__hit~0#1=-1} Honda state: {ULTIMATE.start_main_~s__hit~0#1=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-03-09 07:00:33,053 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2025-03-09 07:00:33,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 07:00:33,053 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 07:00:33,055 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-09 07:00:33,056 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2025-03-09 07:00:33,057 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-09 07:00:33,057 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-09 07:00:33,074 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 [2025-03-09 07:00:33,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 07:00:33,075 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 07:00:33,076 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-09 07:00:33,078 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2025-03-09 07:00:33,080 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-03-09 07:00:33,080 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-09 07:00:33,093 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-03-09 07:00:33,099 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2025-03-09 07:00:33,099 INFO L204 LassoAnalysis]: Preferences: [2025-03-09 07:00:33,099 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-09 07:00:33,099 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-09 07:00:33,099 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-09 07:00:33,099 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-03-09 07:00:33,099 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 07:00:33,099 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-09 07:00:33,099 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-09 07:00:33,099 INFO L132 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration1_Loop [2025-03-09 07:00:33,100 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-09 07:00:33,100 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-09 07:00:33,100 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-09 07:00:33,108 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-09 07:00:33,112 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-09 07:00:33,149 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-09 07:00:33,151 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-03-09 07:00:33,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 07:00:33,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 07:00:33,154 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-09 07:00:33,155 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2025-03-09 07:00:33,156 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-03-09 07:00:33,166 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-09 07:00:33,167 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-09 07:00:33,167 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-09 07:00:33,167 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2025-03-09 07:00:33,167 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-09 07:00:33,170 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2025-03-09 07:00:33,170 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-09 07:00:33,173 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-09 07:00:33,178 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2025-03-09 07:00:33,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 07:00:33,179 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 07:00:33,181 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) [2025-03-09 07:00:33,182 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 [2025-03-09 07:00:33,183 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-03-09 07:00:33,193 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-09 07:00:33,194 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-09 07:00:33,194 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-09 07:00:33,194 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-09 07:00:33,194 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-09 07:00:33,195 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-09 07:00:33,195 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-09 07:00:33,196 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-03-09 07:00:33,199 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-03-09 07:00:33,201 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-03-09 07:00:33,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 07:00:33,202 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 07:00:33,204 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) [2025-03-09 07:00:33,205 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 [2025-03-09 07:00:33,206 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-03-09 07:00:33,206 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-03-09 07:00:33,206 INFO L474 LassoAnalysis]: Proved termination. [2025-03-09 07:00:33,206 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~blastFlag~0#1) = -1*ULTIMATE.start_main_~blastFlag~0#1 + 1 Supporting invariants [] [2025-03-09 07:00:33,212 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 [2025-03-09 07:00:33,214 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-03-09 07:00:33,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 07:00:33,253 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-03-09 07:00:33,256 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-03-09 07:00:33,256 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:00:33,256 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 07:00:33,257 INFO L256 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-09 07:00:33,258 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 07:00:33,264 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-09 07:00:33,266 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-09 07:00:33,266 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:00:33,266 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 07:00:33,266 INFO L256 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-09 07:00:33,267 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 07:00:33,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 07:00:33,318 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2025-03-09 07:00:33,320 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 23 states, 22 states have (on average 1.6818181818181819) internal successors, (37), 22 states have internal predecessors, (37), 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 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 07:00:33,380 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 23 states, 22 states have (on average 1.6818181818181819) internal successors, (37), 22 states have internal predecessors, (37), 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 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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 50 states and 81 transitions. Complement of second has 6 states. [2025-03-09 07:00:33,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2025-03-09 07:00:33,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 07:00:33,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 38 transitions. [2025-03-09 07:00:33,394 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 38 transitions. Stem has 2 letters. Loop has 4 letters. [2025-03-09 07:00:33,395 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-09 07:00:33,395 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 38 transitions. Stem has 6 letters. Loop has 4 letters. [2025-03-09 07:00:33,395 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-09 07:00:33,395 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 38 transitions. Stem has 2 letters. Loop has 8 letters. [2025-03-09 07:00:33,396 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-09 07:00:33,396 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 50 states and 81 transitions. [2025-03-09 07:00:33,399 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 15 [2025-03-09 07:00:33,401 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 50 states to 36 states and 58 transitions. [2025-03-09 07:00:33,403 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2025-03-09 07:00:33,403 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2025-03-09 07:00:33,403 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 58 transitions. [2025-03-09 07:00:33,404 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-03-09 07:00:33,404 INFO L218 hiAutomatonCegarLoop]: Abstraction has 36 states and 58 transitions. [2025-03-09 07:00:33,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states and 58 transitions. [2025-03-09 07:00:33,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 34. [2025-03-09 07:00:33,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 34 states have (on average 1.6176470588235294) internal successors, (55), 33 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) [2025-03-09 07:00:33,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 55 transitions. [2025-03-09 07:00:33,423 INFO L240 hiAutomatonCegarLoop]: Abstraction has 34 states and 55 transitions. [2025-03-09 07:00:33,423 INFO L432 stractBuchiCegarLoop]: Abstraction has 34 states and 55 transitions. [2025-03-09 07:00:33,425 INFO L338 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-03-09 07:00:33,425 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 34 states and 55 transitions. [2025-03-09 07:00:33,426 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 15 [2025-03-09 07:00:33,427 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-09 07:00:33,427 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-09 07:00:33,427 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2025-03-09 07:00:33,427 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2025-03-09 07:00:33,427 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_~s__state~0#1, main_~s__hit~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;havoc main_#t~nondet4#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0;" "assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2);" [2025-03-09 07:00:33,428 INFO L754 eck$LassoCheckResult]: Loop: "assume 8466 == main_~s__state~0#1;" "assume !(0 == main_~blastFlag~0#1);" "assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8656;" "assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2);" [2025-03-09 07:00:33,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 07:00:33,429 INFO L85 PathProgramCache]: Analyzing trace with hash 79407, now seen corresponding path program 1 times [2025-03-09 07:00:33,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 07:00:33,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928226217] [2025-03-09 07:00:33,429 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 07:00:33,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 07:00:33,432 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-09 07:00:33,436 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-09 07:00:33,437 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:00:33,437 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 07:00:33,437 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 07:00:33,438 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-09 07:00:33,441 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-09 07:00:33,444 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:00:33,445 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 07:00:33,446 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 07:00:33,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 07:00:33,446 INFO L85 PathProgramCache]: Analyzing trace with hash 2239208, now seen corresponding path program 1 times [2025-03-09 07:00:33,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 07:00:33,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448564009] [2025-03-09 07:00:33,446 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 07:00:33,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 07:00:33,448 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-09 07:00:33,452 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-09 07:00:33,452 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:00:33,452 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 07:00:33,452 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 07:00:33,453 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-09 07:00:33,454 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-09 07:00:33,454 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:00:33,454 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 07:00:33,455 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 07:00:33,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 07:00:33,455 INFO L85 PathProgramCache]: Analyzing trace with hash 320903702, now seen corresponding path program 1 times [2025-03-09 07:00:33,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 07:00:33,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058435566] [2025-03-09 07:00:33,463 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 07:00:33,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 07:00:33,465 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-09 07:00:33,468 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-09 07:00:33,468 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:00:33,468 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 07:00:33,506 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 07:00:33,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 07:00:33,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058435566] [2025-03-09 07:00:33,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058435566] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 07:00:33,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 07:00:33,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 07:00:33,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364333139] [2025-03-09 07:00:33,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 07:00:33,546 INFO L204 LassoAnalysis]: Preferences: [2025-03-09 07:00:33,546 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-09 07:00:33,546 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-09 07:00:33,546 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-09 07:00:33,547 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-03-09 07:00:33,547 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 07:00:33,547 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-09 07:00:33,547 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-09 07:00:33,547 INFO L132 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration2_Loop [2025-03-09 07:00:33,547 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-09 07:00:33,547 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-09 07:00:33,547 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-09 07:00:33,549 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-09 07:00:33,554 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-09 07:00:33,586 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-09 07:00:33,586 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-03-09 07:00:33,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 07:00:33,586 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 07:00:33,588 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) [2025-03-09 07:00:33,590 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 [2025-03-09 07:00:33,591 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-09 07:00:33,591 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-09 07:00:33,609 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-09 07:00:33,609 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~s__hit~0#1=-1} Honda state: {ULTIMATE.start_main_~s__hit~0#1=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-03-09 07:00:33,615 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 [2025-03-09 07:00:33,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 07:00:33,616 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 07:00:33,618 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) [2025-03-09 07:00:33,618 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 [2025-03-09 07:00:33,620 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-09 07:00:33,620 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-09 07:00:33,637 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-09 07:00:33,638 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~blastFlag~0#1=-1} Honda state: {ULTIMATE.start_main_~blastFlag~0#1=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-03-09 07:00:33,643 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2025-03-09 07:00:33,644 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 07:00:33,644 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 07:00:33,645 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) [2025-03-09 07:00:33,647 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 [2025-03-09 07:00:33,648 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-09 07:00:33,648 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-09 07:00:33,671 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2025-03-09 07:00:33,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 07:00:33,671 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 07:00:33,673 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) [2025-03-09 07:00:33,674 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 [2025-03-09 07:00:33,675 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-03-09 07:00:33,675 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-09 07:00:33,687 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-03-09 07:00:33,693 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2025-03-09 07:00:33,694 INFO L204 LassoAnalysis]: Preferences: [2025-03-09 07:00:33,694 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-09 07:00:33,694 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-09 07:00:33,694 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-09 07:00:33,694 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-03-09 07:00:33,694 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 07:00:33,694 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-09 07:00:33,694 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-09 07:00:33,694 INFO L132 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration2_Loop [2025-03-09 07:00:33,694 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-09 07:00:33,694 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-09 07:00:33,695 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-09 07:00:33,699 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-09 07:00:33,702 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-09 07:00:33,731 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-09 07:00:33,731 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-03-09 07:00:33,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 07:00:33,731 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 07:00:33,733 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) [2025-03-09 07:00:33,734 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 [2025-03-09 07:00:33,736 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-03-09 07:00:33,746 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-09 07:00:33,746 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-09 07:00:33,746 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-09 07:00:33,746 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2025-03-09 07:00:33,746 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-09 07:00:33,747 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2025-03-09 07:00:33,747 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-09 07:00:33,748 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-09 07:00:33,754 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2025-03-09 07:00:33,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 07:00:33,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 07:00:33,756 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) [2025-03-09 07:00:33,757 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 [2025-03-09 07:00:33,765 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-03-09 07:00:33,776 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-09 07:00:33,776 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-09 07:00:33,776 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-09 07:00:33,776 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2025-03-09 07:00:33,776 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-09 07:00:33,779 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2025-03-09 07:00:33,780 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-09 07:00:33,781 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-09 07:00:33,785 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 [2025-03-09 07:00:33,786 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2025-03-09 07:00:33,787 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 07:00:33,787 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 07:00:33,788 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) [2025-03-09 07:00:33,789 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 [2025-03-09 07:00:33,791 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-03-09 07:00:33,801 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-09 07:00:33,801 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-09 07:00:33,801 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-09 07:00:33,801 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-09 07:00:33,801 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-09 07:00:33,802 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-09 07:00:33,802 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-09 07:00:33,804 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-03-09 07:00:33,806 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-03-09 07:00:33,806 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-03-09 07:00:33,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 07:00:33,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 07:00:33,808 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) [2025-03-09 07:00:33,810 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 [2025-03-09 07:00:33,811 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-03-09 07:00:33,811 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-03-09 07:00:33,811 INFO L474 LassoAnalysis]: Proved termination. [2025-03-09 07:00:33,811 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~s__state~0#1) = -1*ULTIMATE.start_main_~s__state~0#1 + 8561 Supporting invariants [] [2025-03-09 07:00:33,817 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 [2025-03-09 07:00:33,822 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-03-09 07:00:33,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 07:00:33,845 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-09 07:00:33,847 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-09 07:00:33,847 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:00:33,847 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 07:00:33,848 INFO L256 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-09 07:00:33,848 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 07:00:33,857 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-09 07:00:33,858 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-09 07:00:33,858 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:00:33,858 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 07:00:33,859 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-09 07:00:33,860 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 07:00:33,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 07:00:33,885 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 [2025-03-09 07:00:33,886 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 34 states and 55 transitions. cyclomatic complexity: 23 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) [2025-03-09 07:00:33,917 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 34 states and 55 transitions. cyclomatic complexity: 23. 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 67 states and 108 transitions. Complement of second has 7 states. [2025-03-09 07:00:33,918 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 [2025-03-09 07:00:33,918 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) [2025-03-09 07:00:33,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2025-03-09 07:00:33,918 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 3 letters. Loop has 4 letters. [2025-03-09 07:00:33,919 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-09 07:00:33,919 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 7 letters. Loop has 4 letters. [2025-03-09 07:00:33,919 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-09 07:00:33,919 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 3 letters. Loop has 8 letters. [2025-03-09 07:00:33,919 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-09 07:00:33,919 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 67 states and 108 transitions. [2025-03-09 07:00:33,921 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 15 [2025-03-09 07:00:33,921 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 67 states to 55 states and 92 transitions. [2025-03-09 07:00:33,921 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 23 [2025-03-09 07:00:33,922 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25 [2025-03-09 07:00:33,922 INFO L73 IsDeterministic]: Start isDeterministic. Operand 55 states and 92 transitions. [2025-03-09 07:00:33,922 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-03-09 07:00:33,922 INFO L218 hiAutomatonCegarLoop]: Abstraction has 55 states and 92 transitions. [2025-03-09 07:00:33,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states and 92 transitions. [2025-03-09 07:00:33,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 48. [2025-03-09 07:00:33,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 48 states have (on average 1.6666666666666667) internal successors, (80), 47 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 07:00:33,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 80 transitions. [2025-03-09 07:00:33,927 INFO L240 hiAutomatonCegarLoop]: Abstraction has 48 states and 80 transitions. [2025-03-09 07:00:33,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 07:00:33,928 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 07:00:33,929 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 07:00:33,929 INFO L87 Difference]: Start difference. First operand 48 states and 80 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 07:00:33,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 07:00:33,955 INFO L93 Difference]: Finished difference Result 78 states and 116 transitions. [2025-03-09 07:00:33,955 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 78 states and 116 transitions. [2025-03-09 07:00:33,956 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 28 [2025-03-09 07:00:33,957 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 78 states to 76 states and 114 transitions. [2025-03-09 07:00:33,957 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 34 [2025-03-09 07:00:33,957 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 34 [2025-03-09 07:00:33,957 INFO L73 IsDeterministic]: Start isDeterministic. Operand 76 states and 114 transitions. [2025-03-09 07:00:33,957 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-03-09 07:00:33,957 INFO L218 hiAutomatonCegarLoop]: Abstraction has 76 states and 114 transitions. [2025-03-09 07:00:33,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states and 114 transitions. [2025-03-09 07:00:33,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 75. [2025-03-09 07:00:33,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 75 states have (on average 1.5066666666666666) internal successors, (113), 74 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 07:00:33,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 113 transitions. [2025-03-09 07:00:33,960 INFO L240 hiAutomatonCegarLoop]: Abstraction has 75 states and 113 transitions. [2025-03-09 07:00:33,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 07:00:33,962 INFO L432 stractBuchiCegarLoop]: Abstraction has 75 states and 113 transitions. [2025-03-09 07:00:33,962 INFO L338 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-03-09 07:00:33,962 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 75 states and 113 transitions. [2025-03-09 07:00:33,963 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 28 [2025-03-09 07:00:33,963 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-09 07:00:33,963 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-09 07:00:33,963 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2025-03-09 07:00:33,963 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2025-03-09 07:00:33,964 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_~s__state~0#1, main_~s__hit~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;havoc main_#t~nondet4#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0;" "assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2);" [2025-03-09 07:00:33,964 INFO L754 eck$LassoCheckResult]: Loop: "assume !(8466 == main_~s__state~0#1);" "assume 8512 == main_~s__state~0#1;" "havoc main_#t~nondet5#1;main_~tmp___1~0#1 := main_#t~nondet5#1;" "assume 0 != main_~tmp___1~0#1;main_~s__state~0#1 := 8466;" "assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2);" [2025-03-09 07:00:33,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 07:00:33,964 INFO L85 PathProgramCache]: Analyzing trace with hash 79407, now seen corresponding path program 2 times [2025-03-09 07:00:33,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 07:00:33,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564659695] [2025-03-09 07:00:33,964 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 07:00:33,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 07:00:33,969 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 3 statements into 1 equivalence classes. [2025-03-09 07:00:33,972 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-09 07:00:33,973 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-09 07:00:33,973 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 07:00:33,973 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 07:00:33,974 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-09 07:00:33,975 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-09 07:00:33,975 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:00:33,975 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 07:00:33,976 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 07:00:33,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 07:00:33,977 INFO L85 PathProgramCache]: Analyzing trace with hash 70515251, now seen corresponding path program 1 times [2025-03-09 07:00:33,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 07:00:33,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52911317] [2025-03-09 07:00:33,977 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 07:00:33,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 07:00:33,982 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-09 07:00:33,983 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-09 07:00:33,983 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:00:33,983 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 07:00:33,983 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 07:00:33,983 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-09 07:00:33,984 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-09 07:00:33,984 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:00:33,984 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 07:00:33,986 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 07:00:33,987 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 07:00:33,987 INFO L85 PathProgramCache]: Analyzing trace with hash 1359179973, now seen corresponding path program 1 times [2025-03-09 07:00:33,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 07:00:33,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186497982] [2025-03-09 07:00:33,987 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 07:00:33,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 07:00:33,991 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-09 07:00:33,993 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-09 07:00:33,994 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:00:33,995 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 07:00:34,007 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 07:00:34,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 07:00:34,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186497982] [2025-03-09 07:00:34,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186497982] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 07:00:34,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 07:00:34,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 07:00:34,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069315239] [2025-03-09 07:00:34,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 07:00:34,034 INFO L204 LassoAnalysis]: Preferences: [2025-03-09 07:00:34,034 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-09 07:00:34,034 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-09 07:00:34,034 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-09 07:00:34,034 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-03-09 07:00:34,034 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 07:00:34,034 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-09 07:00:34,034 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-09 07:00:34,034 INFO L132 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration3_Loop [2025-03-09 07:00:34,034 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-09 07:00:34,035 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-09 07:00:34,035 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-09 07:00:34,037 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-09 07:00:34,040 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-09 07:00:34,059 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-09 07:00:34,059 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-03-09 07:00:34,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 07:00:34,060 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 07:00:34,061 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) [2025-03-09 07:00:34,062 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 [2025-03-09 07:00:34,063 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-09 07:00:34,063 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-09 07:00:34,073 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-09 07:00:34,073 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~tmp___1~0#1=0} Honda state: {ULTIMATE.start_main_~tmp___1~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-03-09 07:00:34,078 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 [2025-03-09 07:00:34,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 07:00:34,078 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 07:00:34,080 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) [2025-03-09 07:00:34,081 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 [2025-03-09 07:00:34,082 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-09 07:00:34,082 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-09 07:00:34,098 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-09 07:00:34,099 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~blastFlag~0#1=2} Honda state: {ULTIMATE.start_main_~blastFlag~0#1=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-03-09 07:00:34,104 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2025-03-09 07:00:34,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 07:00:34,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 07:00:34,106 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) [2025-03-09 07:00:34,106 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 [2025-03-09 07:00:34,107 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-09 07:00:34,107 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-09 07:00:34,124 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2025-03-09 07:00:34,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 07:00:34,124 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 07:00:34,126 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) [2025-03-09 07:00:34,127 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 [2025-03-09 07:00:34,128 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-03-09 07:00:34,128 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-09 07:00:34,140 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-03-09 07:00:34,146 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2025-03-09 07:00:34,146 INFO L204 LassoAnalysis]: Preferences: [2025-03-09 07:00:34,146 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-09 07:00:34,146 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-09 07:00:34,146 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-09 07:00:34,146 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-03-09 07:00:34,146 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 07:00:34,146 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-09 07:00:34,146 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-09 07:00:34,146 INFO L132 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration3_Loop [2025-03-09 07:00:34,146 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-09 07:00:34,146 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-09 07:00:34,147 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-09 07:00:34,150 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-09 07:00:34,154 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-09 07:00:34,172 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-09 07:00:34,172 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-03-09 07:00:34,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 07:00:34,172 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 07:00:34,173 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) [2025-03-09 07:00:34,174 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 [2025-03-09 07:00:34,175 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-03-09 07:00:34,186 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-09 07:00:34,186 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-09 07:00:34,186 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-09 07:00:34,186 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-09 07:00:34,186 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-09 07:00:34,186 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-09 07:00:34,186 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-09 07:00:34,188 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-09 07:00:34,194 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2025-03-09 07:00:34,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 07:00:34,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 07:00:34,196 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) [2025-03-09 07:00:34,197 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 [2025-03-09 07:00:34,199 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-03-09 07:00:34,208 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-09 07:00:34,209 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-09 07:00:34,209 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-09 07:00:34,209 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-09 07:00:34,209 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-09 07:00:34,209 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-09 07:00:34,209 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-09 07:00:34,211 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-03-09 07:00:34,213 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2025-03-09 07:00:34,213 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-03-09 07:00:34,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 07:00:34,213 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 07:00:34,215 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) [2025-03-09 07:00:34,216 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 [2025-03-09 07:00:34,217 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-03-09 07:00:34,217 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-03-09 07:00:34,217 INFO L474 LassoAnalysis]: Proved termination. [2025-03-09 07:00:34,217 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~s__state~0#1) = 1*ULTIMATE.start_main_~s__state~0#1 Supporting invariants [] [2025-03-09 07:00:34,222 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 [2025-03-09 07:00:34,223 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-03-09 07:00:34,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 07:00:34,239 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-09 07:00:34,242 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-09 07:00:34,242 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:00:34,242 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 07:00:34,242 INFO L256 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-09 07:00:34,242 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 07:00:34,247 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-09 07:00:34,248 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-09 07:00:34,248 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:00:34,248 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 07:00:34,248 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-09 07:00:34,249 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 07:00:34,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 07:00:34,272 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 [2025-03-09 07:00:34,272 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 75 states and 113 transitions. cyclomatic complexity: 44 Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 07:00:34,343 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 75 states and 113 transitions. cyclomatic complexity: 44. Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 225 states and 344 transitions. Complement of second has 9 states. [2025-03-09 07:00:34,344 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 [2025-03-09 07:00:34,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 07:00:34,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 43 transitions. [2025-03-09 07:00:34,344 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 43 transitions. Stem has 3 letters. Loop has 5 letters. [2025-03-09 07:00:34,344 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-09 07:00:34,344 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 43 transitions. Stem has 8 letters. Loop has 5 letters. [2025-03-09 07:00:34,345 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-09 07:00:34,345 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 43 transitions. Stem has 3 letters. Loop has 10 letters. [2025-03-09 07:00:34,345 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-09 07:00:34,345 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 225 states and 344 transitions. [2025-03-09 07:00:34,347 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 48 [2025-03-09 07:00:34,351 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 225 states to 225 states and 344 transitions. [2025-03-09 07:00:34,351 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 62 [2025-03-09 07:00:34,351 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 65 [2025-03-09 07:00:34,351 INFO L73 IsDeterministic]: Start isDeterministic. Operand 225 states and 344 transitions. [2025-03-09 07:00:34,351 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-03-09 07:00:34,352 INFO L218 hiAutomatonCegarLoop]: Abstraction has 225 states and 344 transitions. [2025-03-09 07:00:34,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states and 344 transitions. [2025-03-09 07:00:34,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 177. [2025-03-09 07:00:34,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 177 states have (on average 1.5084745762711864) internal successors, (267), 176 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 07:00:34,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 267 transitions. [2025-03-09 07:00:34,365 INFO L240 hiAutomatonCegarLoop]: Abstraction has 177 states and 267 transitions. [2025-03-09 07:00:34,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 07:00:34,366 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 07:00:34,366 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 07:00:34,366 INFO L87 Difference]: Start difference. First operand 177 states and 267 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 07:00:34,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 07:00:34,384 INFO L93 Difference]: Finished difference Result 53 states and 82 transitions. [2025-03-09 07:00:34,384 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 53 states and 82 transitions. [2025-03-09 07:00:34,385 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 17 [2025-03-09 07:00:34,386 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 53 states to 52 states and 81 transitions. [2025-03-09 07:00:34,386 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2025-03-09 07:00:34,386 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2025-03-09 07:00:34,386 INFO L73 IsDeterministic]: Start isDeterministic. Operand 52 states and 81 transitions. [2025-03-09 07:00:34,387 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-03-09 07:00:34,387 INFO L218 hiAutomatonCegarLoop]: Abstraction has 52 states and 81 transitions. [2025-03-09 07:00:34,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states and 81 transitions. [2025-03-09 07:00:34,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2025-03-09 07:00:34,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 52 states have (on average 1.5576923076923077) internal successors, (81), 51 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 07:00:34,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 81 transitions. [2025-03-09 07:00:34,391 INFO L240 hiAutomatonCegarLoop]: Abstraction has 52 states and 81 transitions. [2025-03-09 07:00:34,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 07:00:34,394 INFO L432 stractBuchiCegarLoop]: Abstraction has 52 states and 81 transitions. [2025-03-09 07:00:34,394 INFO L338 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2025-03-09 07:00:34,394 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 52 states and 81 transitions. [2025-03-09 07:00:34,394 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 17 [2025-03-09 07:00:34,394 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-09 07:00:34,394 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-09 07:00:34,395 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1] [2025-03-09 07:00:34,395 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2025-03-09 07:00:34,395 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_~s__state~0#1, main_~s__hit~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;havoc main_#t~nondet4#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0;" "assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2);" "assume 8466 == main_~s__state~0#1;" "assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2;" "assume !(0 != main_~s__hit~0#1);main_~s__state~0#1 := 8512;" "assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2);" "assume !(8466 == main_~s__state~0#1);" [2025-03-09 07:00:34,395 INFO L754 eck$LassoCheckResult]: Loop: "assume 8512 == main_~s__state~0#1;" "havoc main_#t~nondet5#1;main_~tmp___1~0#1 := main_#t~nondet5#1;" "assume !(0 != main_~tmp___1~0#1);main_~s__state~0#1 := 8640;" "assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2);" "assume !(8466 == main_~s__state~0#1);" [2025-03-09 07:00:34,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 07:00:34,395 INFO L85 PathProgramCache]: Analyzing trace with hash 1358051384, now seen corresponding path program 1 times [2025-03-09 07:00:34,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 07:00:34,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147867730] [2025-03-09 07:00:34,395 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 07:00:34,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 07:00:34,401 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-09 07:00:34,403 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-09 07:00:34,405 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:00:34,405 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 07:00:34,405 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 07:00:34,406 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-09 07:00:34,408 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-09 07:00:34,409 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:00:34,410 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 07:00:34,412 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 07:00:34,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 07:00:34,412 INFO L85 PathProgramCache]: Analyzing trace with hash 67416612, now seen corresponding path program 1 times [2025-03-09 07:00:34,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 07:00:34,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352348505] [2025-03-09 07:00:34,413 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 07:00:34,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 07:00:34,415 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-09 07:00:34,416 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-09 07:00:34,416 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:00:34,416 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 07:00:34,416 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 07:00:34,417 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-09 07:00:34,418 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-09 07:00:34,418 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:00:34,418 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 07:00:34,419 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 07:00:34,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 07:00:34,419 INFO L85 PathProgramCache]: Analyzing trace with hash 1737491533, now seen corresponding path program 1 times [2025-03-09 07:00:34,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 07:00:34,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613729240] [2025-03-09 07:00:34,419 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 07:00:34,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 07:00:34,427 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-03-09 07:00:34,430 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-03-09 07:00:34,430 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:00:34,430 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 07:00:34,430 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 07:00:34,432 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-03-09 07:00:34,434 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-03-09 07:00:34,434 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:00:34,434 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 07:00:34,435 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 07:00:34,458 INFO L204 LassoAnalysis]: Preferences: [2025-03-09 07:00:34,458 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-09 07:00:34,458 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-09 07:00:34,458 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-09 07:00:34,458 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-03-09 07:00:34,458 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 07:00:34,458 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-09 07:00:34,458 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-09 07:00:34,458 INFO L132 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration4_Loop [2025-03-09 07:00:34,458 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-09 07:00:34,458 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-09 07:00:34,458 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-09 07:00:34,465 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-09 07:00:34,478 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-09 07:00:34,478 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-03-09 07:00:34,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 07:00:34,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 07:00:34,481 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) [2025-03-09 07:00:34,483 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 [2025-03-09 07:00:34,483 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-09 07:00:34,483 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-09 07:00:34,506 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 [2025-03-09 07:00:34,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 07:00:34,506 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 07:00:34,508 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) [2025-03-09 07:00:34,509 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 [2025-03-09 07:00:34,510 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-03-09 07:00:34,510 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-09 07:00:34,522 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-03-09 07:00:34,528 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 [2025-03-09 07:00:34,528 INFO L204 LassoAnalysis]: Preferences: [2025-03-09 07:00:34,528 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-09 07:00:34,528 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-09 07:00:34,528 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-09 07:00:34,528 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-03-09 07:00:34,528 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 07:00:34,528 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-09 07:00:34,529 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-09 07:00:34,529 INFO L132 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration4_Loop [2025-03-09 07:00:34,529 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-09 07:00:34,529 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-09 07:00:34,529 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-09 07:00:34,534 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-09 07:00:34,552 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-09 07:00:34,552 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-03-09 07:00:34,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 07:00:34,553 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 07:00:34,554 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) [2025-03-09 07:00:34,556 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 [2025-03-09 07:00:34,557 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-03-09 07:00:34,567 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-09 07:00:34,567 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-09 07:00:34,567 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-09 07:00:34,567 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-09 07:00:34,567 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-09 07:00:34,568 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-09 07:00:34,568 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-09 07:00:34,570 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-03-09 07:00:34,573 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-03-09 07:00:34,573 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-03-09 07:00:34,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 07:00:34,573 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 07:00:34,575 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) [2025-03-09 07:00:34,576 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 [2025-03-09 07:00:34,577 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-03-09 07:00:34,577 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-03-09 07:00:34,577 INFO L474 LassoAnalysis]: Proved termination. [2025-03-09 07:00:34,577 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~s__state~0#1) = -1*ULTIMATE.start_main_~s__state~0#1 + 8576 Supporting invariants [] [2025-03-09 07:00:34,583 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2025-03-09 07:00:34,584 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-03-09 07:00:34,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 07:00:34,595 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-09 07:00:34,599 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-09 07:00:34,599 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:00:34,599 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 07:00:34,599 INFO L256 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-09 07:00:34,600 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 07:00:34,608 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-09 07:00:34,610 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-09 07:00:34,610 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:00:34,610 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 07:00:34,610 INFO L256 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-09 07:00:34,611 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 07:00:34,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 07:00:34,636 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 [2025-03-09 07:00:34,636 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 52 states and 81 transitions. cyclomatic complexity: 33 Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 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) [2025-03-09 07:00:34,687 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 52 states and 81 transitions. cyclomatic complexity: 33. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 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) Result 146 states and 223 transitions. Complement of second has 9 states. [2025-03-09 07:00:34,687 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 [2025-03-09 07:00:34,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 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) [2025-03-09 07:00:34,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 43 transitions. [2025-03-09 07:00:34,687 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 43 transitions. Stem has 8 letters. Loop has 5 letters. [2025-03-09 07:00:34,688 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-09 07:00:34,688 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 43 transitions. Stem has 13 letters. Loop has 5 letters. [2025-03-09 07:00:34,688 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-09 07:00:34,688 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 43 transitions. Stem has 8 letters. Loop has 10 letters. [2025-03-09 07:00:34,688 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-09 07:00:34,688 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 146 states and 223 transitions. [2025-03-09 07:00:34,689 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 26 [2025-03-09 07:00:34,690 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 146 states to 126 states and 195 transitions. [2025-03-09 07:00:34,690 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 37 [2025-03-09 07:00:34,690 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 40 [2025-03-09 07:00:34,690 INFO L73 IsDeterministic]: Start isDeterministic. Operand 126 states and 195 transitions. [2025-03-09 07:00:34,690 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-03-09 07:00:34,690 INFO L218 hiAutomatonCegarLoop]: Abstraction has 126 states and 195 transitions. [2025-03-09 07:00:34,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states and 195 transitions. [2025-03-09 07:00:34,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 120. [2025-03-09 07:00:34,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 120 states have (on average 1.55) internal successors, (186), 119 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 07:00:34,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 186 transitions. [2025-03-09 07:00:34,693 INFO L240 hiAutomatonCegarLoop]: Abstraction has 120 states and 186 transitions. [2025-03-09 07:00:34,693 INFO L432 stractBuchiCegarLoop]: Abstraction has 120 states and 186 transitions. [2025-03-09 07:00:34,694 INFO L338 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2025-03-09 07:00:34,694 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 120 states and 186 transitions. [2025-03-09 07:00:34,694 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 26 [2025-03-09 07:00:34,694 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-09 07:00:34,694 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-09 07:00:34,694 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 07:00:34,694 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 07:00:34,694 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_~s__state~0#1, main_~s__hit~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;havoc main_#t~nondet4#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0;" "assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2);" "assume 8466 == main_~s__state~0#1;" "assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2;" "assume !(0 != main_~s__hit~0#1);main_~s__state~0#1 := 8512;" "assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2);" "assume !(8466 == main_~s__state~0#1);" "assume 8512 == main_~s__state~0#1;" [2025-03-09 07:00:34,695 INFO L754 eck$LassoCheckResult]: Loop: "havoc main_#t~nondet5#1;main_~tmp___1~0#1 := main_#t~nondet5#1;" "assume 0 != main_~tmp___1~0#1;main_~s__state~0#1 := 8466;" "assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2);" "assume 8466 == main_~s__state~0#1;" "assume !(0 == main_~blastFlag~0#1);" "assume !(0 != main_~s__hit~0#1);main_~s__state~0#1 := 8512;" "assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2);" "assume !(8466 == main_~s__state~0#1);" "assume 8512 == main_~s__state~0#1;" [2025-03-09 07:00:34,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 07:00:34,695 INFO L85 PathProgramCache]: Analyzing trace with hash -850080015, now seen corresponding path program 1 times [2025-03-09 07:00:34,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 07:00:34,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535931203] [2025-03-09 07:00:34,695 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 07:00:34,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 07:00:34,697 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-09 07:00:34,699 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-09 07:00:34,699 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:00:34,699 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 07:00:34,699 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 07:00:34,700 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-09 07:00:34,701 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-09 07:00:34,701 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:00:34,701 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 07:00:34,702 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 07:00:34,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 07:00:34,702 INFO L85 PathProgramCache]: Analyzing trace with hash -1299084269, now seen corresponding path program 1 times [2025-03-09 07:00:34,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 07:00:34,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189541286] [2025-03-09 07:00:34,702 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 07:00:34,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 07:00:34,704 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-09 07:00:34,705 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-09 07:00:34,705 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:00:34,705 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 07:00:34,705 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 07:00:34,705 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-09 07:00:34,706 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-09 07:00:34,706 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:00:34,706 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 07:00:34,707 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 07:00:34,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 07:00:34,707 INFO L85 PathProgramCache]: Analyzing trace with hash -1046574301, now seen corresponding path program 1 times [2025-03-09 07:00:34,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 07:00:34,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671316731] [2025-03-09 07:00:34,707 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 07:00:34,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 07:00:34,709 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-03-09 07:00:34,712 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-03-09 07:00:34,712 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:00:34,712 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 07:00:34,712 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 07:00:34,712 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-03-09 07:00:34,718 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-03-09 07:00:34,718 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:00:34,718 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 07:00:34,720 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 07:00:34,838 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 [2025-03-09 07:00:34,842 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2025-03-09 07:00:34,850 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 [2025-03-09 07:00:34,886 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-09 07:00:34,887 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-09 07:00:34,887 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:00:34,888 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 07:00:34,888 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 07:00:34,889 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-09 07:00:34,890 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-09 07:00:34,890 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:00:34,890 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 07:00:34,907 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 09.03 07:00:34 BoogieIcfgContainer [2025-03-09 07:00:34,907 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-03-09 07:00:34,907 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-09 07:00:34,907 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-09 07:00:34,907 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-09 07:00:34,908 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 07:00:32" (3/4) ... [2025-03-09 07:00:34,909 INFO L143 WitnessPrinter]: Generating witness for non-termination counterexample [2025-03-09 07:00:34,933 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-09 07:00:34,933 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-09 07:00:34,934 INFO L158 Benchmark]: Toolchain (without parser) took 2693.34ms. Allocated memory is still 167.8MB. Free memory was 124.5MB in the beginning and 120.1MB in the end (delta: 4.4MB). Peak memory consumption was 3.1MB. Max. memory is 16.1GB. [2025-03-09 07:00:34,934 INFO L158 Benchmark]: CDTParser took 0.56ms. Allocated memory is still 201.3MB. Free memory is still 115.6MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 07:00:34,934 INFO L158 Benchmark]: CACSL2BoogieTranslator took 158.95ms. Allocated memory is still 167.8MB. Free memory was 124.5MB in the beginning and 112.7MB in the end (delta: 11.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-09 07:00:34,934 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.01ms. Allocated memory is still 167.8MB. Free memory was 112.7MB in the beginning and 111.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 07:00:34,934 INFO L158 Benchmark]: Boogie Preprocessor took 24.20ms. Allocated memory is still 167.8MB. Free memory was 111.6MB in the beginning and 110.9MB in the end (delta: 663.7kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 07:00:34,935 INFO L158 Benchmark]: IcfgBuilder took 201.58ms. Allocated memory is still 167.8MB. Free memory was 110.9MB in the beginning and 99.3MB in the end (delta: 11.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-09 07:00:34,935 INFO L158 Benchmark]: BuchiAutomizer took 2256.55ms. Allocated memory is still 167.8MB. Free memory was 99.3MB in the beginning and 123.7MB in the end (delta: -24.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 07:00:34,935 INFO L158 Benchmark]: Witness Printer took 26.06ms. Allocated memory is still 167.8MB. Free memory was 123.7MB in the beginning and 120.1MB in the end (delta: 3.6MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 07:00:34,936 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.56ms. Allocated memory is still 201.3MB. Free memory is still 115.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 158.95ms. Allocated memory is still 167.8MB. Free memory was 124.5MB in the beginning and 112.7MB in the end (delta: 11.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 22.01ms. Allocated memory is still 167.8MB. Free memory was 112.7MB in the beginning and 111.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 24.20ms. Allocated memory is still 167.8MB. Free memory was 111.6MB in the beginning and 110.9MB in the end (delta: 663.7kB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 201.58ms. Allocated memory is still 167.8MB. Free memory was 110.9MB in the beginning and 99.3MB in the end (delta: 11.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 2256.55ms. Allocated memory is still 167.8MB. Free memory was 99.3MB in the beginning and 123.7MB in the end (delta: -24.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 26.06ms. Allocated memory is still 167.8MB. Free memory was 123.7MB in the beginning and 120.1MB in the end (delta: 3.6MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (2 trivial, 4 deterministic, 0 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function (((long long) -1 * blastFlag) + 1) and consists of 4 locations. One deterministic module has affine ranking function (((long long) -1 * s__state) + 8561) and consists of 4 locations. One deterministic module has affine ranking function s__state and consists of 5 locations. One deterministic module has affine ranking function (8576 + ((long long) -1 * s__state)) and consists of 5 locations. 2 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 120 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.2s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 1.5s. Construction of modules took 0.1s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 6. Automata minimization 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 64 StatesRemovedByMinimization, 5 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, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 112 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 108 mSDsluCounter, 214 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 88 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 208 IncrementalHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 126 mSDtfsCounter, 208 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT2 conc0 concLT2 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital13 mio100 ax100 hnf100 lsp66 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq200 hnf87 smp100 dnf100 smp100 tf114 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 20ms VariablesStem: 0 VariablesLoop: 1 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 0 MotzkinApplications: 4 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 80]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L21] int s__state ; [L22] int s__hit = __VERIFIER_nondet_int() ; [L23] int blastFlag ; [L24] int tmp___1; [L26] s__state = 8466 [L27] blastFlag = 0 VAL [blastFlag=0, s__state=8466] [L30] COND FALSE !(s__state <= 8512 && blastFlag > 2) VAL [blastFlag=0, s__state=8466] [L36] COND TRUE s__state == 8466 VAL [blastFlag=0] [L69] COND TRUE blastFlag == 0 [L70] blastFlag = 2 VAL [blastFlag=2] [L72] COND FALSE !(\read(s__hit)) [L75] s__state = 8512 VAL [blastFlag=2, s__hit=0, s__state=8512] [L30] COND FALSE !(s__state <= 8512 && blastFlag > 2) VAL [blastFlag=2, s__hit=0, s__state=8512] [L36] COND FALSE !(s__state == 8466) VAL [blastFlag=2, s__hit=0, s__state=8512] [L41] COND TRUE s__state == 8512 VAL [blastFlag=2, s__hit=0] Loop: [L80] tmp___1 = __VERIFIER_nondet_int() [L81] COND TRUE \read(tmp___1) [L82] s__state = 8466 [L30] COND FALSE !(s__state <= 8512 && blastFlag > 2) [L36] COND TRUE s__state == 8466 [L69] COND FALSE !(blastFlag == 0) [L72] COND FALSE !(\read(s__hit)) [L75] s__state = 8512 [L30] COND FALSE !(s__state <= 8512 && blastFlag > 2) [L36] COND FALSE !(s__state == 8466) [L41] COND TRUE s__state == 8512 End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 80]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L21] int s__state ; [L22] int s__hit = __VERIFIER_nondet_int() ; [L23] int blastFlag ; [L24] int tmp___1; [L26] s__state = 8466 [L27] blastFlag = 0 VAL [blastFlag=0, s__state=8466] [L30] COND FALSE !(s__state <= 8512 && blastFlag > 2) VAL [blastFlag=0, s__state=8466] [L36] COND TRUE s__state == 8466 VAL [blastFlag=0] [L69] COND TRUE blastFlag == 0 [L70] blastFlag = 2 VAL [blastFlag=2] [L72] COND FALSE !(\read(s__hit)) [L75] s__state = 8512 VAL [blastFlag=2, s__hit=0, s__state=8512] [L30] COND FALSE !(s__state <= 8512 && blastFlag > 2) VAL [blastFlag=2, s__hit=0, s__state=8512] [L36] COND FALSE !(s__state == 8466) VAL [blastFlag=2, s__hit=0, s__state=8512] [L41] COND TRUE s__state == 8512 VAL [blastFlag=2, s__hit=0] Loop: [L80] tmp___1 = __VERIFIER_nondet_int() [L81] COND TRUE \read(tmp___1) [L82] s__state = 8466 [L30] COND FALSE !(s__state <= 8512 && blastFlag > 2) [L36] COND TRUE s__state == 8466 [L69] COND FALSE !(blastFlag == 0) [L72] COND FALSE !(\read(s__hit)) [L75] s__state = 8512 [L30] COND FALSE !(s__state <= 8512 && blastFlag > 2) [L36] COND FALSE !(s__state == 8466) [L41] COND TRUE s__state == 8512 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2025-03-09 07:00:34,948 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)