./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 c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/openssl-simplified/s3_srvr_1b.cil.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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-?-c00e63d-m [2025-02-06 19:12:39,369 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 19:12:39,419 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2025-02-06 19:12:39,426 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 19:12:39,428 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 19:12:39,428 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2025-02-06 19:12:39,451 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 19:12:39,453 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 19:12:39,453 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 19:12:39,453 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 19:12:39,454 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 19:12:39,454 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 19:12:39,454 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 19:12:39,454 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 19:12:39,455 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-02-06 19:12:39,455 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-02-06 19:12:39,455 INFO L153 SettingsManager]: * Use old map elimination=false [2025-02-06 19:12:39,455 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-02-06 19:12:39,455 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-02-06 19:12:39,455 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-02-06 19:12:39,455 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 19:12:39,455 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-02-06 19:12:39,455 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 19:12:39,456 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 19:12:39,456 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 19:12:39,456 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 19:12:39,456 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-02-06 19:12:39,456 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-02-06 19:12:39,456 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-02-06 19:12:39,456 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 19:12:39,456 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 19:12:39,456 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 19:12:39,456 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-02-06 19:12:39,457 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 19:12:39,457 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 19:12:39,457 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 19:12:39,457 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 19:12:39,457 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 19:12:39,457 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 19:12:39,457 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-02-06 19:12:39,458 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-jdk21/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 [2025-02-06 19:12:39,730 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 19:12:39,735 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 19:12:39,737 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 19:12:39,738 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 19:12:39,738 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 19:12:39,739 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/openssl-simplified/s3_srvr_1b.cil.c [2025-02-06 19:12:40,877 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d3fc59f95/4b664dbee04a4d3eb698eab9f63b8239/FLAG679f5ca26 [2025-02-06 19:12:41,101 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 19:12:41,101 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/openssl-simplified/s3_srvr_1b.cil.c [2025-02-06 19:12:41,107 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d3fc59f95/4b664dbee04a4d3eb698eab9f63b8239/FLAG679f5ca26 [2025-02-06 19:12:41,121 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d3fc59f95/4b664dbee04a4d3eb698eab9f63b8239 [2025-02-06 19:12:41,123 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 19:12:41,124 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 19:12:41,126 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 19:12:41,126 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 19:12:41,128 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 19:12:41,129 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 07:12:41" (1/1) ... [2025-02-06 19:12:41,130 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33f67c65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:12:41, skipping insertion in model container [2025-02-06 19:12:41,131 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 07:12:41" (1/1) ... [2025-02-06 19:12:41,144 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 19:12:41,252 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 19:12:41,259 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 19:12:41,269 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 19:12:41,280 INFO L204 MainTranslator]: Completed translation [2025-02-06 19:12:41,281 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:12:41 WrapperNode [2025-02-06 19:12:41,281 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 19:12:41,282 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 19:12:41,282 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 19:12:41,282 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 19:12:41,285 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:12:41" (1/1) ... [2025-02-06 19:12:41,294 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:12:41" (1/1) ... [2025-02-06 19:12:41,304 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 71 [2025-02-06 19:12:41,304 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 19:12:41,305 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 19:12:41,305 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 19:12:41,305 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 19:12:41,309 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:12:41" (1/1) ... [2025-02-06 19:12:41,310 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:12:41" (1/1) ... [2025-02-06 19:12:41,310 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:12:41" (1/1) ... [2025-02-06 19:12:41,316 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]. [2025-02-06 19:12:41,317 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:12:41" (1/1) ... [2025-02-06 19:12:41,317 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:12:41" (1/1) ... [2025-02-06 19:12:41,319 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:12:41" (1/1) ... [2025-02-06 19:12:41,319 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:12:41" (1/1) ... [2025-02-06 19:12:41,320 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:12:41" (1/1) ... [2025-02-06 19:12:41,324 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:12:41" (1/1) ... [2025-02-06 19:12:41,324 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 19:12:41,325 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 19:12:41,325 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 19:12:41,325 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 19:12:41,326 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:12:41" (1/1) ... [2025-02-06 19:12:41,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:12:41,343 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:12:41,355 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-06 19:12:41,362 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2025-02-06 19:12:41,379 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 19:12:41,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 19:12:41,379 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 19:12:41,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 19:12:41,419 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 19:12:41,420 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 19:12:41,556 INFO L? ?]: Removed 15 outVars from TransFormulas that were not future-live. [2025-02-06 19:12:41,557 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 19:12:41,563 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 19:12:41,563 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 19:12:41,563 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 07:12:41 BoogieIcfgContainer [2025-02-06 19:12:41,563 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 19:12:41,564 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-02-06 19:12:41,564 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-02-06 19:12:41,568 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-02-06 19:12:41,568 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-06 19:12:41,568 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.02 07:12:41" (1/3) ... [2025-02-06 19:12:41,569 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2c058a10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.02 07:12:41, skipping insertion in model container [2025-02-06 19:12:41,569 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-06 19:12:41,569 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:12:41" (2/3) ... [2025-02-06 19:12:41,570 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2c058a10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.02 07:12:41, skipping insertion in model container [2025-02-06 19:12:41,570 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-06 19:12:41,570 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 07:12:41" (3/3) ... [2025-02-06 19:12:41,571 INFO L363 chiAutomizerObserver]: Analyzing ICFG s3_srvr_1b.cil.c [2025-02-06 19:12:41,602 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-02-06 19:12:41,602 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-02-06 19:12:41,602 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-02-06 19:12:41,602 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-02-06 19:12:41,602 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-02-06 19:12:41,602 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-02-06 19:12:41,602 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-02-06 19:12:41,602 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-02-06 19:12:41,606 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 25 states, 24 states have (on average 1.625) internal successors, (39), 24 states have internal predecessors, (39), 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) [2025-02-06 19:12:41,616 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 17 [2025-02-06 19:12:41,616 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-06 19:12:41,616 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-06 19:12:41,619 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-02-06 19:12:41,620 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2025-02-06 19:12:41,620 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-02-06 19:12:41,620 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 25 states, 24 states have (on average 1.625) internal successors, (39), 24 states have internal predecessors, (39), 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) [2025-02-06 19:12:41,621 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 17 [2025-02-06 19:12:41,621 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-06 19:12:41,621 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-06 19:12:41,621 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-02-06 19:12:41,621 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2025-02-06 19:12:41,626 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_~s__state~0#1, main_~s__hit~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;havoc main_#t~nondet4#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0;" [2025-02-06 19:12:41,626 INFO L754 eck$LassoCheckResult]: Loop: "assume true;" "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;" "assume true;" [2025-02-06 19:12:41,629 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:12:41,630 INFO L85 PathProgramCache]: Analyzing trace with hash 2624, now seen corresponding path program 1 times [2025-02-06 19:12:41,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:12:41,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452762465] [2025-02-06 19:12:41,635 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 19:12:41,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:12:41,675 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-06 19:12:41,681 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-06 19:12:41,682 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:12:41,682 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:12:41,682 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 19:12:41,684 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-06 19:12:41,686 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-06 19:12:41,686 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:12:41,686 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:12:41,695 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 19:12:41,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:12:41,698 INFO L85 PathProgramCache]: Analyzing trace with hash -1958960740, now seen corresponding path program 1 times [2025-02-06 19:12:41,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:12:41,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424492891] [2025-02-06 19:12:41,698 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 19:12:41,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:12:41,701 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-06 19:12:41,703 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-06 19:12:41,703 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:12:41,703 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:12:41,703 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 19:12:41,704 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-06 19:12:41,706 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-06 19:12:41,706 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:12:41,706 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:12:41,707 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 19:12:41,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:12:41,708 INFO L85 PathProgramCache]: Analyzing trace with hash -1909079909, now seen corresponding path program 1 times [2025-02-06 19:12:41,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:12:41,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447543730] [2025-02-06 19:12:41,708 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 19:12:41,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:12:41,711 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-06 19:12:41,715 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-06 19:12:41,715 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:12:41,715 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:12:41,715 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 19:12:41,716 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-06 19:12:41,719 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-06 19:12:41,719 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:12:41,719 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:12:41,720 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 19:12:41,795 INFO L204 LassoAnalysis]: Preferences: [2025-02-06 19:12:41,797 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-06 19:12:41,797 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-06 19:12:41,797 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-06 19:12:41,797 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-06 19:12:41,797 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:12:41,797 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-06 19:12:41,797 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-06 19:12:41,798 INFO L132 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration1_Loop [2025-02-06 19:12:41,798 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-06 19:12:41,798 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-06 19:12:41,807 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:12:41,814 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:12:41,820 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:12:41,889 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-06 19:12:41,889 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-06 19:12:41,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:12:41,891 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:12:41,892 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-06 19:12:41,894 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2025-02-06 19:12:41,895 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-06 19:12:41,895 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-06 19:12:41,918 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-06 19:12:41,918 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: [] [2025-02-06 19:12:41,924 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2025-02-06 19:12:41,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:12:41,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:12:41,926 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-06 19:12:41,928 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2025-02-06 19:12:41,933 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-06 19:12:41,933 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-06 19:12:41,957 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2025-02-06 19:12:41,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:12:41,958 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:12:41,960 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-06 19:12:41,962 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2025-02-06 19:12:41,962 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-06 19:12:41,962 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-06 19:12:41,974 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-06 19:12:41,980 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2025-02-06 19:12:41,980 INFO L204 LassoAnalysis]: Preferences: [2025-02-06 19:12:41,980 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-06 19:12:41,980 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-06 19:12:41,980 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-06 19:12:41,980 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-06 19:12:41,980 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:12:41,980 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-06 19:12:41,980 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-06 19:12:41,980 INFO L132 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration1_Loop [2025-02-06 19:12:41,980 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-06 19:12:41,981 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-06 19:12:41,981 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:12:41,985 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:12:41,989 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:12:42,027 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-06 19:12:42,030 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-06 19:12:42,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:12:42,031 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:12:42,033 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-06 19:12:42,035 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2025-02-06 19:12:42,036 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 [2025-02-06 19:12:42,047 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-06 19:12:42,047 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-06 19:12:42,047 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-06 19:12:42,047 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2025-02-06 19:12:42,047 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-06 19:12:42,050 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2025-02-06 19:12:42,051 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-06 19:12:42,053 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-06 19:12:42,058 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2025-02-06 19:12:42,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:12:42,059 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:12:42,060 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-06 19:12:42,062 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2025-02-06 19:12:42,062 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 [2025-02-06 19:12:42,077 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-06 19:12:42,077 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-06 19:12:42,077 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-06 19:12:42,077 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-06 19:12:42,077 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-06 19:12:42,078 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-06 19:12:42,079 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-06 19:12:42,088 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-06 19:12:42,095 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-02-06 19:12:42,097 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-02-06 19:12:42,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:12:42,098 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:12:42,107 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-06 19:12:42,108 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2025-02-06 19:12:42,110 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-06 19:12:42,110 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-06 19:12:42,110 INFO L474 LassoAnalysis]: Proved termination. [2025-02-06 19:12:42,111 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 [] [2025-02-06 19:12:42,116 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2025-02-06 19:12:42,119 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-06 19:12:42,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:12:42,143 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-06 19:12:42,146 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-06 19:12:42,146 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:12:42,146 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 19:12:42,147 INFO L256 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-06 19:12:42,147 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 19:12:42,154 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-06 19:12:42,160 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-06 19:12:42,161 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:12:42,161 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 19:12:42,161 INFO L256 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 19:12:42,162 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 19:12:42,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 19:12:42,222 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 [2025-02-06 19:12:42,223 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 25 states, 24 states have (on average 1.625) internal successors, (39), 24 states have internal predecessors, (39), 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 2.0) internal successors, (8), 4 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) [2025-02-06 19:12:42,269 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 25 states, 24 states have (on average 1.625) internal successors, (39), 24 states have internal predecessors, (39), 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 2.0) internal successors, (8), 4 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 53 states and 82 transitions. Complement of second has 6 states. [2025-02-06 19:12:42,270 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 [2025-02-06 19:12:42,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 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) [2025-02-06 19:12:42,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 40 transitions. [2025-02-06 19:12:42,278 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 40 transitions. Stem has 2 letters. Loop has 6 letters. [2025-02-06 19:12:42,279 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-06 19:12:42,279 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 40 transitions. Stem has 8 letters. Loop has 6 letters. [2025-02-06 19:12:42,279 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-06 19:12:42,279 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 40 transitions. Stem has 2 letters. Loop has 12 letters. [2025-02-06 19:12:42,279 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-06 19:12:42,280 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 53 states and 82 transitions. [2025-02-06 19:12:42,281 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 17 [2025-02-06 19:12:42,283 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 53 states to 40 states and 61 transitions. [2025-02-06 19:12:42,284 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2025-02-06 19:12:42,284 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2025-02-06 19:12:42,285 INFO L73 IsDeterministic]: Start isDeterministic. Operand 40 states and 61 transitions. [2025-02-06 19:12:42,285 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-06 19:12:42,285 INFO L218 hiAutomatonCegarLoop]: Abstraction has 40 states and 61 transitions. [2025-02-06 19:12:42,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states and 61 transitions. [2025-02-06 19:12:42,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 38. [2025-02-06 19:12:42,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 38 states have (on average 1.5526315789473684) internal successors, (59), 37 states have internal predecessors, (59), 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) [2025-02-06 19:12:42,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 59 transitions. [2025-02-06 19:12:42,302 INFO L240 hiAutomatonCegarLoop]: Abstraction has 38 states and 59 transitions. [2025-02-06 19:12:42,302 INFO L432 stractBuchiCegarLoop]: Abstraction has 38 states and 59 transitions. [2025-02-06 19:12:42,302 INFO L338 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-02-06 19:12:42,302 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 38 states and 59 transitions. [2025-02-06 19:12:42,303 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 17 [2025-02-06 19:12:42,303 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-06 19:12:42,303 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-06 19:12:42,304 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2025-02-06 19:12:42,304 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2025-02-06 19:12:42,304 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_~s__state~0#1, main_~s__hit~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;havoc main_#t~nondet4#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0;" "assume true;" [2025-02-06 19:12:42,304 INFO L754 eck$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);" "assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8656;" "assume true;" "assume true;" [2025-02-06 19:12:42,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:12:42,304 INFO L85 PathProgramCache]: Analyzing trace with hash 81393, now seen corresponding path program 1 times [2025-02-06 19:12:42,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:12:42,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366102759] [2025-02-06 19:12:42,305 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 19:12:42,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:12:42,307 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-06 19:12:42,309 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-06 19:12:42,310 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:12:42,311 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:12:42,311 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 19:12:42,312 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-06 19:12:42,320 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-06 19:12:42,320 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:12:42,320 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:12:42,321 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 19:12:42,321 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:12:42,321 INFO L85 PathProgramCache]: Analyzing trace with hash -1991525019, now seen corresponding path program 1 times [2025-02-06 19:12:42,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:12:42,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799827176] [2025-02-06 19:12:42,321 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 19:12:42,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:12:42,328 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-06 19:12:42,330 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-06 19:12:42,330 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:12:42,330 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:12:42,330 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 19:12:42,330 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-06 19:12:42,331 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-06 19:12:42,333 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:12:42,333 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:12:42,334 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 19:12:42,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:12:42,337 INFO L85 PathProgramCache]: Analyzing trace with hash 948094805, now seen corresponding path program 1 times [2025-02-06 19:12:42,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:12:42,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182450931] [2025-02-06 19:12:42,337 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 19:12:42,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:12:42,340 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-02-06 19:12:42,346 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-02-06 19:12:42,349 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:12:42,349 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 19:12:42,382 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2025-02-06 19:12:42,393 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 19:12:42,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 19:12:42,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182450931] [2025-02-06 19:12:42,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182450931] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 19:12:42,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 19:12:42,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 19:12:42,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176782419] [2025-02-06 19:12:42,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 19:12:42,446 INFO L204 LassoAnalysis]: Preferences: [2025-02-06 19:12:42,446 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-06 19:12:42,446 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-06 19:12:42,446 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-06 19:12:42,446 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-06 19:12:42,446 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:12:42,446 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-06 19:12:42,446 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-06 19:12:42,446 INFO L132 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration2_Loop [2025-02-06 19:12:42,446 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-06 19:12:42,446 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-06 19:12:42,447 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:12:42,449 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:12:42,453 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:12:42,493 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-06 19:12:42,493 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-06 19:12:42,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:12:42,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:12:42,495 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-06 19:12:42,496 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2025-02-06 19:12:42,497 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-06 19:12:42,497 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-06 19:12:42,515 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-06 19:12:42,516 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: [] [2025-02-06 19:12:42,521 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2025-02-06 19:12:42,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:12:42,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:12:42,523 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-06 19:12:42,525 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2025-02-06 19:12:42,526 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-06 19:12:42,526 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-06 19:12:42,544 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-06 19:12:42,544 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: [] [2025-02-06 19:12:42,550 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2025-02-06 19:12:42,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:12:42,550 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:12:42,552 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-06 19:12:42,554 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2025-02-06 19:12:42,554 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-06 19:12:42,554 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-06 19:12:42,577 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2025-02-06 19:12:42,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:12:42,578 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:12:42,579 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-06 19:12:42,580 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2025-02-06 19:12:42,582 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-06 19:12:42,582 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-06 19:12:42,599 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-06 19:12:42,605 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2025-02-06 19:12:42,605 INFO L204 LassoAnalysis]: Preferences: [2025-02-06 19:12:42,605 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-06 19:12:42,605 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-06 19:12:42,605 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-06 19:12:42,605 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-06 19:12:42,605 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:12:42,605 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-06 19:12:42,605 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-06 19:12:42,605 INFO L132 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration2_Loop [2025-02-06 19:12:42,605 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-06 19:12:42,605 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-06 19:12:42,607 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:12:42,611 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:12:42,617 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:12:42,664 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-06 19:12:42,664 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-06 19:12:42,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:12:42,664 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:12:42,669 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-06 19:12:42,673 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2025-02-06 19:12:42,674 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 [2025-02-06 19:12:42,684 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-06 19:12:42,685 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-06 19:12:42,685 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-06 19:12:42,685 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2025-02-06 19:12:42,685 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-06 19:12:42,687 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2025-02-06 19:12:42,687 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-06 19:12:42,690 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-06 19:12:42,696 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2025-02-06 19:12:42,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:12:42,696 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:12:42,698 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-06 19:12:42,700 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2025-02-06 19:12:42,701 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 [2025-02-06 19:12:42,711 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-06 19:12:42,711 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-06 19:12:42,711 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-06 19:12:42,711 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2025-02-06 19:12:42,711 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-06 19:12:42,713 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2025-02-06 19:12:42,713 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-06 19:12:42,715 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-06 19:12:42,723 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2025-02-06 19:12:42,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:12:42,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:12:42,725 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-06 19:12:42,726 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2025-02-06 19:12:42,730 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 [2025-02-06 19:12:42,747 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-06 19:12:42,748 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-06 19:12:42,748 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-06 19:12:42,748 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-06 19:12:42,748 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-06 19:12:42,752 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-06 19:12:42,752 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-06 19:12:42,757 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-06 19:12:42,759 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-02-06 19:12:42,759 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-02-06 19:12:42,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:12:42,760 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:12:42,762 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-06 19:12:42,763 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2025-02-06 19:12:42,765 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-06 19:12:42,765 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-06 19:12:42,765 INFO L474 LassoAnalysis]: Proved termination. [2025-02-06 19:12:42,765 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 [] [2025-02-06 19:12:42,771 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2025-02-06 19:12:42,772 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-06 19:12:42,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:12:42,790 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-06 19:12:42,794 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-06 19:12:42,794 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:12:42,794 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 19:12:42,794 INFO L256 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-06 19:12:42,794 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 19:12:42,800 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-06 19:12:42,802 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-06 19:12:42,802 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:12:42,802 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 19:12:42,803 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 19:12:42,803 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 19:12:42,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 19:12:42,830 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 [2025-02-06 19:12:42,831 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 38 states and 59 transitions. cyclomatic complexity: 23 Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 19:12:42,852 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 38 states and 59 transitions. cyclomatic complexity: 23. Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 78 states and 115 transitions. Complement of second has 7 states. [2025-02-06 19:12:42,853 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 [2025-02-06 19:12:42,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 19:12:42,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2025-02-06 19:12:42,854 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 3 letters. Loop has 6 letters. [2025-02-06 19:12:42,854 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-06 19:12:42,854 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 9 letters. Loop has 6 letters. [2025-02-06 19:12:42,854 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-06 19:12:42,854 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 3 letters. Loop has 12 letters. [2025-02-06 19:12:42,854 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-06 19:12:42,854 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 78 states and 115 transitions. [2025-02-06 19:12:42,856 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 17 [2025-02-06 19:12:42,857 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 78 states to 67 states and 103 transitions. [2025-02-06 19:12:42,857 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 27 [2025-02-06 19:12:42,857 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2025-02-06 19:12:42,857 INFO L73 IsDeterministic]: Start isDeterministic. Operand 67 states and 103 transitions. [2025-02-06 19:12:42,857 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-06 19:12:42,857 INFO L218 hiAutomatonCegarLoop]: Abstraction has 67 states and 103 transitions. [2025-02-06 19:12:42,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states and 103 transitions. [2025-02-06 19:12:42,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 60. [2025-02-06 19:12:42,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 60 states have (on average 1.5333333333333334) internal successors, (92), 59 states have internal predecessors, (92), 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) [2025-02-06 19:12:42,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 92 transitions. [2025-02-06 19:12:42,864 INFO L240 hiAutomatonCegarLoop]: Abstraction has 60 states and 92 transitions. [2025-02-06 19:12:42,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 19:12:42,865 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 19:12:42,865 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 19:12:42,866 INFO L87 Difference]: Start difference. First operand 60 states and 92 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 19:12:42,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 19:12:42,885 INFO L93 Difference]: Finished difference Result 98 states and 136 transitions. [2025-02-06 19:12:42,885 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 98 states and 136 transitions. [2025-02-06 19:12:42,886 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 32 [2025-02-06 19:12:42,887 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 98 states to 95 states and 133 transitions. [2025-02-06 19:12:42,887 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 41 [2025-02-06 19:12:42,887 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 41 [2025-02-06 19:12:42,887 INFO L73 IsDeterministic]: Start isDeterministic. Operand 95 states and 133 transitions. [2025-02-06 19:12:42,887 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-06 19:12:42,887 INFO L218 hiAutomatonCegarLoop]: Abstraction has 95 states and 133 transitions. [2025-02-06 19:12:42,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states and 133 transitions. [2025-02-06 19:12:42,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 93. [2025-02-06 19:12:42,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 93 states have (on average 1.4086021505376345) internal successors, (131), 92 states have internal predecessors, (131), 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) [2025-02-06 19:12:42,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 131 transitions. [2025-02-06 19:12:42,891 INFO L240 hiAutomatonCegarLoop]: Abstraction has 93 states and 131 transitions. [2025-02-06 19:12:42,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 19:12:42,892 INFO L432 stractBuchiCegarLoop]: Abstraction has 93 states and 131 transitions. [2025-02-06 19:12:42,892 INFO L338 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-02-06 19:12:42,892 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 93 states and 131 transitions. [2025-02-06 19:12:42,897 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 32 [2025-02-06 19:12:42,897 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-06 19:12:42,897 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-06 19:12:42,898 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2025-02-06 19:12:42,898 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2025-02-06 19:12:42,898 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_~s__state~0#1, main_~s__hit~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;havoc main_#t~nondet4#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0;" "assume true;" [2025-02-06 19:12:42,898 INFO L754 eck$LassoCheckResult]: Loop: "assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2);" "assume !(8466 == main_~s__state~0#1);" "assume 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 true;" "assume true;" [2025-02-06 19:12:42,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:12:42,898 INFO L85 PathProgramCache]: Analyzing trace with hash 81393, now seen corresponding path program 2 times [2025-02-06 19:12:42,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:12:42,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859649173] [2025-02-06 19:12:42,899 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 19:12:42,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:12:42,901 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 3 statements into 1 equivalence classes. [2025-02-06 19:12:42,903 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-06 19:12:42,903 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 19:12:42,903 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:12:42,903 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 19:12:42,910 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-06 19:12:42,911 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-06 19:12:42,911 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:12:42,911 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:12:42,912 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 19:12:42,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:12:42,912 INFO L85 PathProgramCache]: Analyzing trace with hash -1573601931, now seen corresponding path program 1 times [2025-02-06 19:12:42,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:12:42,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008790907] [2025-02-06 19:12:42,913 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 19:12:42,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:12:42,918 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-06 19:12:42,919 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-06 19:12:42,919 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:12:42,919 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:12:42,919 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 19:12:42,920 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-06 19:12:42,921 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-06 19:12:42,921 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:12:42,921 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:12:42,921 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 19:12:42,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:12:42,922 INFO L85 PathProgramCache]: Analyzing trace with hash -639700603, now seen corresponding path program 1 times [2025-02-06 19:12:42,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:12:42,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878578016] [2025-02-06 19:12:42,922 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 19:12:42,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:12:42,924 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-06 19:12:42,925 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-06 19:12:42,925 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:12:42,925 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 19:12:42,937 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 19:12:42,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 19:12:42,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878578016] [2025-02-06 19:12:42,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878578016] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 19:12:42,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 19:12:42,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 19:12:42,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951137354] [2025-02-06 19:12:42,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 19:12:42,961 INFO L204 LassoAnalysis]: Preferences: [2025-02-06 19:12:42,962 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-06 19:12:42,962 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-06 19:12:42,962 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-06 19:12:42,962 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-06 19:12:42,962 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:12:42,962 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-06 19:12:42,962 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-06 19:12:42,962 INFO L132 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration3_Loop [2025-02-06 19:12:42,962 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-06 19:12:42,962 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-06 19:12:42,963 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:12:42,964 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:12:42,967 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:12:42,988 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-06 19:12:42,988 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-06 19:12:42,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:12:42,988 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:12:42,993 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-06 19:12:42,994 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2025-02-06 19:12:42,995 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-06 19:12:42,995 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-06 19:12:43,010 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-06 19:12:43,011 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: [] [2025-02-06 19:12:43,017 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2025-02-06 19:12:43,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:12:43,017 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:12:43,023 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-06 19:12:43,024 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2025-02-06 19:12:43,025 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-06 19:12:43,025 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-06 19:12:43,061 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-06 19:12:43,061 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: [] [2025-02-06 19:12:43,071 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2025-02-06 19:12:43,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:12:43,071 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:12:43,076 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-06 19:12:43,079 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2025-02-06 19:12:43,080 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-06 19:12:43,080 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-06 19:12:43,112 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2025-02-06 19:12:43,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:12:43,112 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:12:43,114 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-06 19:12:43,117 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2025-02-06 19:12:43,118 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-06 19:12:43,118 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-06 19:12:43,138 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-06 19:12:43,148 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2025-02-06 19:12:43,152 INFO L204 LassoAnalysis]: Preferences: [2025-02-06 19:12:43,152 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-06 19:12:43,152 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-06 19:12:43,152 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-06 19:12:43,152 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-06 19:12:43,152 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:12:43,152 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-06 19:12:43,152 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-06 19:12:43,152 INFO L132 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration3_Loop [2025-02-06 19:12:43,152 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-06 19:12:43,152 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-06 19:12:43,152 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:12:43,158 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:12:43,169 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:12:43,195 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-06 19:12:43,195 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-06 19:12:43,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:12:43,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:12:43,197 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-06 19:12:43,203 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 [2025-02-06 19:12:43,206 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2025-02-06 19:12:43,220 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-06 19:12:43,221 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-06 19:12:43,221 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-06 19:12:43,221 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-06 19:12:43,221 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-06 19:12:43,221 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-06 19:12:43,221 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-06 19:12:43,225 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-06 19:12:43,231 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2025-02-06 19:12:43,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:12:43,231 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:12:43,233 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-06 19:12:43,234 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2025-02-06 19:12:43,236 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 [2025-02-06 19:12:43,245 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-06 19:12:43,245 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-06 19:12:43,245 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-06 19:12:43,245 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-06 19:12:43,246 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-06 19:12:43,246 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-06 19:12:43,247 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-06 19:12:43,248 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-06 19:12:43,250 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2025-02-06 19:12:43,250 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-02-06 19:12:43,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:12:43,250 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:12:43,252 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-06 19:12:43,254 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2025-02-06 19:12:43,255 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-06 19:12:43,255 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-06 19:12:43,255 INFO L474 LassoAnalysis]: Proved termination. [2025-02-06 19:12:43,255 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 [] [2025-02-06 19:12:43,260 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2025-02-06 19:12:43,261 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-06 19:12:43,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:12:43,281 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-06 19:12:43,284 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-06 19:12:43,284 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:12:43,284 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 19:12:43,284 INFO L256 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-06 19:12:43,285 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 19:12:43,289 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-06 19:12:43,291 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-06 19:12:43,291 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:12:43,291 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 19:12:43,291 INFO L256 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 19:12:43,292 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 19:12:43,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 19:12:43,316 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 [2025-02-06 19:12:43,317 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 93 states and 131 transitions. cyclomatic complexity: 44 Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 19:12:43,381 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 93 states and 131 transitions. cyclomatic complexity: 44. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 281 states and 399 transitions. Complement of second has 9 states. [2025-02-06 19:12:43,381 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 [2025-02-06 19:12:43,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 19:12:43,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 49 transitions. [2025-02-06 19:12:43,382 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 49 transitions. Stem has 3 letters. Loop has 7 letters. [2025-02-06 19:12:43,382 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-06 19:12:43,382 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 49 transitions. Stem has 10 letters. Loop has 7 letters. [2025-02-06 19:12:43,382 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-06 19:12:43,383 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 49 transitions. Stem has 3 letters. Loop has 14 letters. [2025-02-06 19:12:43,383 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-06 19:12:43,383 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 281 states and 399 transitions. [2025-02-06 19:12:43,385 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 56 [2025-02-06 19:12:43,387 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 281 states to 280 states and 398 transitions. [2025-02-06 19:12:43,387 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 76 [2025-02-06 19:12:43,387 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 79 [2025-02-06 19:12:43,387 INFO L73 IsDeterministic]: Start isDeterministic. Operand 280 states and 398 transitions. [2025-02-06 19:12:43,388 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-06 19:12:43,388 INFO L218 hiAutomatonCegarLoop]: Abstraction has 280 states and 398 transitions. [2025-02-06 19:12:43,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states and 398 transitions. [2025-02-06 19:12:43,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 219. [2025-02-06 19:12:43,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 219 states have (on average 1.4109589041095891) internal successors, (309), 218 states have internal predecessors, (309), 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) [2025-02-06 19:12:43,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 309 transitions. [2025-02-06 19:12:43,396 INFO L240 hiAutomatonCegarLoop]: Abstraction has 219 states and 309 transitions. [2025-02-06 19:12:43,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 19:12:43,396 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 19:12:43,396 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 19:12:43,397 INFO L87 Difference]: Start difference. First operand 219 states and 309 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 19:12:43,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 19:12:43,410 INFO L93 Difference]: Finished difference Result 74 states and 103 transitions. [2025-02-06 19:12:43,410 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 74 states and 103 transitions. [2025-02-06 19:12:43,411 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 21 [2025-02-06 19:12:43,412 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 74 states to 69 states and 98 transitions. [2025-02-06 19:12:43,412 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 28 [2025-02-06 19:12:43,412 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2025-02-06 19:12:43,412 INFO L73 IsDeterministic]: Start isDeterministic. Operand 69 states and 98 transitions. [2025-02-06 19:12:43,412 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-06 19:12:43,412 INFO L218 hiAutomatonCegarLoop]: Abstraction has 69 states and 98 transitions. [2025-02-06 19:12:43,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states and 98 transitions. [2025-02-06 19:12:43,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2025-02-06 19:12:43,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 69 states have (on average 1.4202898550724639) internal successors, (98), 68 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 19:12:43,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 98 transitions. [2025-02-06 19:12:43,415 INFO L240 hiAutomatonCegarLoop]: Abstraction has 69 states and 98 transitions. [2025-02-06 19:12:43,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 19:12:43,415 INFO L432 stractBuchiCegarLoop]: Abstraction has 69 states and 98 transitions. [2025-02-06 19:12:43,416 INFO L338 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2025-02-06 19:12:43,416 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 69 states and 98 transitions. [2025-02-06 19:12:43,416 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 21 [2025-02-06 19:12:43,416 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-06 19:12:43,416 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-06 19:12:43,417 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 19:12:43,417 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2025-02-06 19:12:43,417 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_~s__state~0#1, main_~s__hit~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;havoc main_#t~nondet4#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0;" "assume true;" "assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2);" "assume 8466 == main_~s__state~0#1;" "assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2;" "assume !(0 != main_~s__hit~0#1);main_~s__state~0#1 := 8512;" "assume true;" "assume true;" "assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2);" "assume !(8466 == main_~s__state~0#1);" [2025-02-06 19:12:43,417 INFO L754 eck$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 true;" "assume true;" "assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2);" "assume !(8466 == main_~s__state~0#1);" [2025-02-06 19:12:43,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:12:43,417 INFO L85 PathProgramCache]: Analyzing trace with hash 558336756, now seen corresponding path program 1 times [2025-02-06 19:12:43,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:12:43,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037346674] [2025-02-06 19:12:43,418 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 19:12:43,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:12:43,422 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-02-06 19:12:43,425 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-02-06 19:12:43,425 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:12:43,425 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:12:43,425 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 19:12:43,426 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-02-06 19:12:43,428 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-02-06 19:12:43,428 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:12:43,428 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:12:43,433 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 19:12:43,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:12:43,436 INFO L85 PathProgramCache]: Analyzing trace with hash 1278695952, now seen corresponding path program 1 times [2025-02-06 19:12:43,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:12:43,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850071291] [2025-02-06 19:12:43,436 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 19:12:43,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:12:43,438 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-06 19:12:43,441 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-06 19:12:43,441 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:12:43,441 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:12:43,442 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 19:12:43,443 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-06 19:12:43,444 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-06 19:12:43,445 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:12:43,446 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:12:43,446 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 19:12:43,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:12:43,447 INFO L85 PathProgramCache]: Analyzing trace with hash 2046699453, now seen corresponding path program 1 times [2025-02-06 19:12:43,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:12:43,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63107836] [2025-02-06 19:12:43,449 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 19:12:43,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:12:43,452 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-02-06 19:12:43,455 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-02-06 19:12:43,456 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:12:43,456 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:12:43,456 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 19:12:43,457 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-02-06 19:12:43,460 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-02-06 19:12:43,460 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:12:43,460 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:12:43,461 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 19:12:43,502 INFO L204 LassoAnalysis]: Preferences: [2025-02-06 19:12:43,503 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-06 19:12:43,503 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-06 19:12:43,503 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-06 19:12:43,503 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-06 19:12:43,503 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:12:43,503 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-06 19:12:43,503 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-06 19:12:43,503 INFO L132 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration4_Loop [2025-02-06 19:12:43,503 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-06 19:12:43,503 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-06 19:12:43,503 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:12:43,511 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:12:43,540 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-06 19:12:43,544 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-06 19:12:43,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:12:43,545 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:12:43,547 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-06 19:12:43,547 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2025-02-06 19:12:43,550 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-06 19:12:43,550 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-06 19:12:43,573 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2025-02-06 19:12:43,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:12:43,574 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:12:43,575 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-06 19:12:43,576 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2025-02-06 19:12:43,577 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-06 19:12:43,577 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-06 19:12:43,589 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-06 19:12:43,595 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2025-02-06 19:12:43,595 INFO L204 LassoAnalysis]: Preferences: [2025-02-06 19:12:43,595 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-06 19:12:43,595 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-06 19:12:43,595 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-06 19:12:43,595 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-06 19:12:43,595 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:12:43,595 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-06 19:12:43,595 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-06 19:12:43,595 INFO L132 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration4_Loop [2025-02-06 19:12:43,595 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-06 19:12:43,595 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-06 19:12:43,595 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:12:43,608 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:12:43,622 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-06 19:12:43,622 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-06 19:12:43,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:12:43,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:12:43,624 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-06 19:12:43,625 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2025-02-06 19:12:43,636 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 [2025-02-06 19:12:43,646 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-06 19:12:43,646 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-06 19:12:43,647 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-06 19:12:43,669 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-06 19:12:43,670 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-06 19:12:43,670 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2025-02-06 19:12:43,670 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-06 19:12:43,671 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-06 19:12:43,673 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-06 19:12:43,674 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-02-06 19:12:43,674 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-02-06 19:12:43,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:12:43,674 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2025-02-06 19:12:43,674 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:12:43,677 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-06 19:12:43,678 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2025-02-06 19:12:43,680 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-06 19:12:43,680 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-06 19:12:43,680 INFO L474 LassoAnalysis]: Proved termination. [2025-02-06 19:12:43,680 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 [] [2025-02-06 19:12:43,685 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2025-02-06 19:12:43,686 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-06 19:12:43,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:12:43,710 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-02-06 19:12:43,716 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-02-06 19:12:43,716 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:12:43,716 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 19:12:43,716 INFO L256 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-06 19:12:43,716 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 19:12:43,733 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-06 19:12:43,735 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-06 19:12:43,735 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:12:43,735 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 19:12:43,735 INFO L256 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 19:12:43,735 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 19:12:43,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 19:12:43,768 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 [2025-02-06 19:12:43,770 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 69 states and 98 transitions. cyclomatic complexity: 33 Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 19:12:43,835 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 69 states and 98 transitions. cyclomatic complexity: 33. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 187 states and 264 transitions. Complement of second has 9 states. [2025-02-06 19:12:43,835 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 [2025-02-06 19:12:43,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 19:12:43,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 51 transitions. [2025-02-06 19:12:43,838 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 51 transitions. Stem has 11 letters. Loop has 7 letters. [2025-02-06 19:12:43,838 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-06 19:12:43,840 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 51 transitions. Stem has 18 letters. Loop has 7 letters. [2025-02-06 19:12:43,840 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-06 19:12:43,840 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 51 transitions. Stem has 11 letters. Loop has 14 letters. [2025-02-06 19:12:43,840 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-06 19:12:43,840 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 187 states and 264 transitions. [2025-02-06 19:12:43,842 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 34 [2025-02-06 19:12:43,843 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 187 states to 167 states and 236 transitions. [2025-02-06 19:12:43,843 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 49 [2025-02-06 19:12:43,843 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 52 [2025-02-06 19:12:43,847 INFO L73 IsDeterministic]: Start isDeterministic. Operand 167 states and 236 transitions. [2025-02-06 19:12:43,847 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-06 19:12:43,848 INFO L218 hiAutomatonCegarLoop]: Abstraction has 167 states and 236 transitions. [2025-02-06 19:12:43,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states and 236 transitions. [2025-02-06 19:12:43,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 161. [2025-02-06 19:12:43,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 161 states have (on average 1.4099378881987579) internal successors, (227), 160 states have internal predecessors, (227), 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) [2025-02-06 19:12:43,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 227 transitions. [2025-02-06 19:12:43,859 INFO L240 hiAutomatonCegarLoop]: Abstraction has 161 states and 227 transitions. [2025-02-06 19:12:43,859 INFO L432 stractBuchiCegarLoop]: Abstraction has 161 states and 227 transitions. [2025-02-06 19:12:43,859 INFO L338 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2025-02-06 19:12:43,859 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 161 states and 227 transitions. [2025-02-06 19:12:43,859 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 34 [2025-02-06 19:12:43,863 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-06 19:12:43,863 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-06 19:12:43,863 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 19:12:43,863 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 19:12:43,863 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_~s__state~0#1, main_~s__hit~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;havoc main_#t~nondet4#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0;" "assume true;" "assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2);" "assume 8466 == main_~s__state~0#1;" "assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2;" "assume !(0 != main_~s__hit~0#1);main_~s__state~0#1 := 8512;" "assume true;" "assume true;" "assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2);" "assume !(8466 == main_~s__state~0#1);" "assume 8512 == main_~s__state~0#1;" [2025-02-06 19:12:43,863 INFO L754 eck$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 true;" "assume true;" "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 true;" "assume true;" "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;" [2025-02-06 19:12:43,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:12:43,863 INFO L85 PathProgramCache]: Analyzing trace with hash 128570294, now seen corresponding path program 1 times [2025-02-06 19:12:43,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:12:43,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834907270] [2025-02-06 19:12:43,864 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 19:12:43,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:12:43,866 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-06 19:12:43,868 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-06 19:12:43,868 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:12:43,868 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:12:43,868 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 19:12:43,869 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-06 19:12:43,872 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-06 19:12:43,872 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:12:43,872 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:12:43,873 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 19:12:43,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:12:43,874 INFO L85 PathProgramCache]: Analyzing trace with hash 882857022, now seen corresponding path program 1 times [2025-02-06 19:12:43,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:12:43,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062207534] [2025-02-06 19:12:43,874 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 19:12:43,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:12:43,880 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-02-06 19:12:43,883 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-02-06 19:12:43,883 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:12:43,883 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:12:43,883 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 19:12:43,884 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-02-06 19:12:43,886 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-02-06 19:12:43,886 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:12:43,887 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:12:43,887 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 19:12:43,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:12:43,890 INFO L85 PathProgramCache]: Analyzing trace with hash 647229097, now seen corresponding path program 1 times [2025-02-06 19:12:43,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:12:43,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618906182] [2025-02-06 19:12:43,890 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 19:12:43,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:12:43,893 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-02-06 19:12:43,900 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-02-06 19:12:43,900 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:12:43,900 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:12:43,900 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 19:12:43,901 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-02-06 19:12:43,907 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-02-06 19:12:43,907 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:12:43,907 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:12:43,908 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 19:12:44,081 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-06 19:12:44,083 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-06 19:12:44,083 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:12:44,083 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:12:44,083 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 19:12:44,084 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-06 19:12:44,087 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-06 19:12:44,087 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:12:44,088 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:12:44,104 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.02 07:12:44 BoogieIcfgContainer [2025-02-06 19:12:44,104 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-02-06 19:12:44,105 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-06 19:12:44,105 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-06 19:12:44,105 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-06 19:12:44,106 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 07:12:41" (3/4) ... [2025-02-06 19:12:44,107 INFO L143 WitnessPrinter]: Generating witness for non-termination counterexample [2025-02-06 19:12:44,134 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-06 19:12:44,137 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-06 19:12:44,138 INFO L158 Benchmark]: Toolchain (without parser) took 3014.25ms. Allocated memory is still 142.6MB. Free memory was 111.5MB in the beginning and 72.6MB in the end (delta: 38.9MB). Peak memory consumption was 36.9MB. Max. memory is 16.1GB. [2025-02-06 19:12:44,138 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 226.5MB. Free memory is still 147.9MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 19:12:44,138 INFO L158 Benchmark]: CACSL2BoogieTranslator took 155.80ms. Allocated memory is still 142.6MB. Free memory was 110.9MB in the beginning and 100.2MB in the end (delta: 10.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 19:12:44,138 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.80ms. Allocated memory is still 142.6MB. Free memory was 100.2MB in the beginning and 98.9MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 19:12:44,138 INFO L158 Benchmark]: Boogie Preprocessor took 19.85ms. Allocated memory is still 142.6MB. Free memory was 98.9MB in the beginning and 97.7MB in the end (delta: 1.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 19:12:44,138 INFO L158 Benchmark]: IcfgBuilder took 238.39ms. Allocated memory is still 142.6MB. Free memory was 97.7MB in the beginning and 86.3MB in the end (delta: 11.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 19:12:44,139 INFO L158 Benchmark]: BuchiAutomizer took 2540.49ms. Allocated memory is still 142.6MB. Free memory was 86.3MB in the beginning and 75.8MB in the end (delta: 10.6MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. [2025-02-06 19:12:44,139 INFO L158 Benchmark]: Witness Printer took 32.48ms. Allocated memory is still 142.6MB. Free memory was 75.8MB in the beginning and 72.6MB in the end (delta: 3.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 19:12:44,140 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 226.5MB. Free memory is still 147.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 155.80ms. Allocated memory is still 142.6MB. Free memory was 110.9MB in the beginning and 100.2MB in the end (delta: 10.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 22.80ms. Allocated memory is still 142.6MB. Free memory was 100.2MB in the beginning and 98.9MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 19.85ms. Allocated memory is still 142.6MB. Free memory was 98.9MB in the beginning and 97.7MB in the end (delta: 1.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 238.39ms. Allocated memory is still 142.6MB. Free memory was 97.7MB in the beginning and 86.3MB in the end (delta: 11.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 2540.49ms. Allocated memory is still 142.6MB. Free memory was 86.3MB in the beginning and 75.8MB in the end (delta: 10.6MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. * Witness Printer took 32.48ms. Allocated memory is still 142.6MB. Free memory was 75.8MB in the beginning and 72.6MB in the end (delta: 3.2MB). 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 161 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.4s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 1.8s. 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, 78 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, 128 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 124 mSDsluCounter, 268 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 118 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 208 IncrementalHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 150 mSDtfsCounter, 208 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT2 conc0 concLT2 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital14 mio100 ax100 hnf100 lsp66 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq194 hnf87 smp100 dnf103 smp96 tf114 neg100 sie103 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 22ms VariablesStem: 0 VariablesLoop: 1 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 0 MotzkinApplications: 4 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s 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] [L29] COND TRUE 1 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] [L29] COND TRUE 1 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 [L29] COND TRUE 1 [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 [L29] COND TRUE 1 [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] [L29] COND TRUE 1 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] [L29] COND TRUE 1 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 [L29] COND TRUE 1 [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 [L29] COND TRUE 1 [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! [2025-02-06 19:12:44,160 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2025-02-06 19:12:44,359 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)