./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 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/openssl-simplified/s3_srvr_1b.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 153b6d90c91de27e09ed3c918b0b1be779b258e790f6fc392e7d5f390719c2db --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-23 02:18:16,408 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 02:18:16,457 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-23 02:18:16,466 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 02:18:16,467 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 02:18:16,499 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 02:18:16,500 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 02:18:16,500 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 02:18:16,500 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 02:18:16,504 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 02:18:16,504 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 02:18:16,504 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 02:18:16,505 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 02:18:16,505 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-23 02:18:16,505 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-23 02:18:16,505 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-23 02:18:16,505 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-23 02:18:16,505 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-23 02:18:16,506 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-23 02:18:16,506 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 02:18:16,506 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-23 02:18:16,509 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 02:18:16,509 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 02:18:16,510 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 02:18:16,510 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 02:18:16,510 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-23 02:18:16,510 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-23 02:18:16,510 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-23 02:18:16,511 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-23 02:18:16,511 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-23 02:18:16,511 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 02:18:16,512 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 02:18:16,512 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-23 02:18:16,512 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 02:18:16,512 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 02:18:16,512 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 02:18:16,513 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 02:18:16,513 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 02:18:16,513 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-23 02:18:16,513 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 153b6d90c91de27e09ed3c918b0b1be779b258e790f6fc392e7d5f390719c2db [2024-11-23 02:18:16,743 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 02:18:16,767 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 02:18:16,770 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 02:18:16,771 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 02:18:16,772 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 02:18:16,773 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/openssl-simplified/s3_srvr_1b.cil.c [2024-11-23 02:18:18,141 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-23 02:18:18,283 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 02:18:18,283 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/openssl-simplified/s3_srvr_1b.cil.c [2024-11-23 02:18:18,289 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/555f51fe1/4b28ebf0d1fc4d64844d074dc575c42c/FLAG65a4f01ab [2024-11-23 02:18:18,299 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/555f51fe1/4b28ebf0d1fc4d64844d074dc575c42c [2024-11-23 02:18:18,300 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 02:18:18,301 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 02:18:18,302 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 02:18:18,303 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 02:18:18,307 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 02:18:18,307 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:18:18" (1/1) ... [2024-11-23 02:18:18,308 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ec18c85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:18, skipping insertion in model container [2024-11-23 02:18:18,308 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:18:18" (1/1) ... [2024-11-23 02:18:18,323 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 02:18:18,440 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 02:18:18,454 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 02:18:18,471 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 02:18:18,483 INFO L204 MainTranslator]: Completed translation [2024-11-23 02:18:18,484 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:18 WrapperNode [2024-11-23 02:18:18,484 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 02:18:18,485 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 02:18:18,485 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 02:18:18,485 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 02:18:18,490 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:18" (1/1) ... [2024-11-23 02:18:18,494 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:18" (1/1) ... [2024-11-23 02:18:18,507 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 74 [2024-11-23 02:18:18,507 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 02:18:18,507 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 02:18:18,508 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 02:18:18,508 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 02:18:18,514 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:18" (1/1) ... [2024-11-23 02:18:18,515 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:18" (1/1) ... [2024-11-23 02:18:18,515 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:18" (1/1) ... [2024-11-23 02:18:18,523 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-23 02:18:18,523 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:18" (1/1) ... [2024-11-23 02:18:18,523 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:18" (1/1) ... [2024-11-23 02:18:18,525 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:18" (1/1) ... [2024-11-23 02:18:18,530 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:18" (1/1) ... [2024-11-23 02:18:18,531 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:18" (1/1) ... [2024-11-23 02:18:18,531 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:18" (1/1) ... [2024-11-23 02:18:18,532 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 02:18:18,533 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 02:18:18,533 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 02:18:18,533 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 02:18:18,534 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:18" (1/1) ... [2024-11-23 02:18:18,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:18:18,548 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:18:18,560 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:18:18,562 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-23 02:18:18,593 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 02:18:18,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 02:18:18,594 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 02:18:18,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 02:18:18,635 INFO L238 CfgBuilder]: Building ICFG [2024-11-23 02:18:18,636 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 02:18:18,747 INFO L? ?]: Removed 15 outVars from TransFormulas that were not future-live. [2024-11-23 02:18:18,747 INFO L287 CfgBuilder]: Performing block encoding [2024-11-23 02:18:18,769 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 02:18:18,769 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-23 02:18:18,774 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:18:18 BoogieIcfgContainer [2024-11-23 02:18:18,774 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 02:18:18,776 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-23 02:18:18,777 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-23 02:18:18,780 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-23 02:18:18,781 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-23 02:18:18,782 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.11 02:18:18" (1/3) ... [2024-11-23 02:18:18,783 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@323c6df3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 02:18:18, skipping insertion in model container [2024-11-23 02:18:18,783 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-23 02:18:18,784 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:18" (2/3) ... [2024-11-23 02:18:18,784 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@323c6df3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 02:18:18, skipping insertion in model container [2024-11-23 02:18:18,784 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-23 02:18:18,784 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:18:18" (3/3) ... [2024-11-23 02:18:18,786 INFO L332 chiAutomizerObserver]: Analyzing ICFG s3_srvr_1b.cil.c [2024-11-23 02:18:18,844 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-23 02:18:18,844 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-23 02:18:18,845 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-23 02:18:18,845 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-23 02:18:18,846 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-23 02:18:18,846 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-23 02:18:18,846 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-23 02:18:18,846 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-23 02:18:18,850 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 24 states, 23 states have (on average 1.6956521739130435) internal successors, (39), 23 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) [2024-11-23 02:18:18,863 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 16 [2024-11-23 02:18:18,864 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-23 02:18:18,864 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-23 02:18:18,869 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-23 02:18:18,869 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2024-11-23 02:18:18,869 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-23 02:18:18,870 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 24 states, 23 states have (on average 1.6956521739130435) internal successors, (39), 23 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) [2024-11-23 02:18:18,871 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 16 [2024-11-23 02:18:18,872 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-23 02:18:18,872 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-23 02:18:18,873 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-23 02:18:18,873 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2024-11-23 02:18:18,881 INFO L745 eck$LassoCheckResult]: Stem: 20#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 10#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_~s__state~0#1, main_~s__hit~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;havoc main_#t~nondet4#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0; 6#$Ultimate##5true [2024-11-23 02:18:18,881 INFO L747 eck$LassoCheckResult]: Loop: 6#$Ultimate##5true assume !false; 3#L30true assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 11#L36true assume 8466 == main_~s__state~0#1; 7#$Ultimate##17true assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2; 17#L69-1true assume !(0 != main_~s__hit~0#1);main_~s__state~0#1 := 8512; 6#$Ultimate##5true [2024-11-23 02:18:18,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:18:18,889 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-11-23 02:18:18,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:18:18,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684237780] [2024-11-23 02:18:18,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:18:18,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:18:19,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:18:19,042 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 02:18:19,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:18:19,075 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 02:18:19,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:18:19,085 INFO L85 PathProgramCache]: Analyzing trace with hash 39284085, now seen corresponding path program 1 times [2024-11-23 02:18:19,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:18:19,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318200631] [2024-11-23 02:18:19,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:18:19,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:18:19,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:18:19,102 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 02:18:19,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:18:19,110 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 02:18:19,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:18:19,117 INFO L85 PathProgramCache]: Analyzing trace with hash 1810723571, now seen corresponding path program 1 times [2024-11-23 02:18:19,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:18:19,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599589937] [2024-11-23 02:18:19,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:18:19,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:18:19,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:18:19,139 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 02:18:19,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:18:19,160 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 02:18:19,328 INFO L204 LassoAnalysis]: Preferences: [2024-11-23 02:18:19,328 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-23 02:18:19,329 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-23 02:18:19,329 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-23 02:18:19,329 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-23 02:18:19,329 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:18:19,329 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-23 02:18:19,329 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-23 02:18:19,329 INFO L132 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration1_Loop [2024-11-23 02:18:19,330 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-23 02:18:19,330 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-23 02:18:19,350 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:18:19,370 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:18:19,382 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:18:19,477 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-23 02:18:19,477 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-23 02:18:19,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:18:19,483 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:18:19,485 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:18:19,487 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-11-23 02:18:19,489 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-23 02:18:19,489 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 02:18:19,504 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-23 02:18:19,505 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~s__hit~0#1=0} Honda state: {ULTIMATE.start_main_~s__hit~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-23 02:18:19,511 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-11-23 02:18:19,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:18:19,512 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:18:19,514 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:18:19,515 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-11-23 02:18:19,516 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-23 02:18:19,516 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 02:18:19,534 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2024-11-23 02:18:19,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:18:19,534 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:18:19,535 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:18:19,537 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-11-23 02:18:19,538 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-23 02:18:19,538 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 02:18:19,554 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-23 02:18:19,561 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2024-11-23 02:18:19,561 INFO L204 LassoAnalysis]: Preferences: [2024-11-23 02:18:19,561 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-23 02:18:19,561 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-23 02:18:19,562 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-23 02:18:19,562 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-23 02:18:19,562 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:18:19,562 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-23 02:18:19,562 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-23 02:18:19,562 INFO L132 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration1_Loop [2024-11-23 02:18:19,563 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-23 02:18:19,563 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-23 02:18:19,564 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:18:19,569 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:18:19,574 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:18:19,623 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-23 02:18:19,627 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-23 02:18:19,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:18:19,628 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:18:19,630 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:18:19,635 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-11-23 02:18:19,636 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 [2024-11-23 02:18:19,648 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-23 02:18:19,648 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-23 02:18:19,648 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-23 02:18:19,648 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-23 02:18:19,648 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-23 02:18:19,650 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-23 02:18:19,651 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-23 02:18:19,654 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-23 02:18:19,660 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2024-11-23 02:18:19,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:18:19,662 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:18:19,664 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:18:19,670 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-11-23 02:18:19,671 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-23 02:18:19,682 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-23 02:18:19,683 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-23 02:18:19,683 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-23 02:18:19,683 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-23 02:18:19,683 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-23 02:18:19,685 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-23 02:18:19,685 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-23 02:18:19,687 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-23 02:18:19,689 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-23 02:18:19,689 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-23 02:18:19,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:18:19,690 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:18:19,714 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:18:19,715 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-11-23 02:18:19,729 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-23 02:18:19,730 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-23 02:18:19,730 INFO L474 LassoAnalysis]: Proved termination. [2024-11-23 02:18:19,730 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 [] [2024-11-23 02:18:19,736 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2024-11-23 02:18:19,739 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-23 02:18:19,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:18:19,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:18:19,815 INFO L255 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-23 02:18:19,816 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 02:18:19,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:18:19,827 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-23 02:18:19,828 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 02:18:19,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 02:18:19,969 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-23 02:18:19,971 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 24 states, 23 states have (on average 1.6956521739130435) internal successors, (39), 23 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 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 02:18:20,075 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 24 states, 23 states have (on average 1.6956521739130435) internal successors, (39), 23 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 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 51 states and 82 transitions. Complement of second has 6 states. [2024-11-23 02:18:20,082 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 [2024-11-23 02:18:20,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 02:18:20,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 41 transitions. [2024-11-23 02:18:20,087 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 41 transitions. Stem has 2 letters. Loop has 5 letters. [2024-11-23 02:18:20,088 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 02:18:20,088 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 41 transitions. Stem has 7 letters. Loop has 5 letters. [2024-11-23 02:18:20,088 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 02:18:20,088 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 41 transitions. Stem has 2 letters. Loop has 10 letters. [2024-11-23 02:18:20,089 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 02:18:20,089 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 51 states and 82 transitions. [2024-11-23 02:18:20,091 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 16 [2024-11-23 02:18:20,094 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 51 states to 38 states and 59 transitions. [2024-11-23 02:18:20,094 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2024-11-23 02:18:20,095 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2024-11-23 02:18:20,095 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 59 transitions. [2024-11-23 02:18:20,095 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-23 02:18:20,095 INFO L218 hiAutomatonCegarLoop]: Abstraction has 38 states and 59 transitions. [2024-11-23 02:18:20,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states and 59 transitions. [2024-11-23 02:18:20,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 36. [2024-11-23 02:18:20,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 36 states have (on average 1.5833333333333333) internal successors, (57), 35 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 02:18:20,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 57 transitions. [2024-11-23 02:18:20,115 INFO L240 hiAutomatonCegarLoop]: Abstraction has 36 states and 57 transitions. [2024-11-23 02:18:20,115 INFO L425 stractBuchiCegarLoop]: Abstraction has 36 states and 57 transitions. [2024-11-23 02:18:20,115 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-23 02:18:20,116 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 36 states and 57 transitions. [2024-11-23 02:18:20,116 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 16 [2024-11-23 02:18:20,116 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-23 02:18:20,116 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-23 02:18:20,117 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-23 02:18:20,117 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2024-11-23 02:18:20,117 INFO L745 eck$LassoCheckResult]: Stem: 155#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 147#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_~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; 148#$Ultimate##5 assume !false; 120#L30 [2024-11-23 02:18:20,117 INFO L747 eck$LassoCheckResult]: Loop: 120#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 121#L36 assume 8466 == main_~s__state~0#1; 134#$Ultimate##17 assume !(0 == main_~blastFlag~0#1); 135#L69-1 assume !(0 != main_~s__hit~0#1);main_~s__state~0#1 := 8512; 132#$Ultimate##5 assume !false; 120#L30 [2024-11-23 02:18:20,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:18:20,118 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2024-11-23 02:18:20,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:18:20,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667323334] [2024-11-23 02:18:20,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:18:20,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:18:20,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:18:20,123 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 02:18:20,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:18:20,131 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 02:18:20,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:18:20,131 INFO L85 PathProgramCache]: Analyzing trace with hash 44013377, now seen corresponding path program 1 times [2024-11-23 02:18:20,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:18:20,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432203429] [2024-11-23 02:18:20,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:18:20,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:18:20,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:18:20,136 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 02:18:20,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:18:20,139 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 02:18:20,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:18:20,139 INFO L85 PathProgramCache]: Analyzing trace with hash 297857786, now seen corresponding path program 1 times [2024-11-23 02:18:20,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:18:20,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196411969] [2024-11-23 02:18:20,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:18:20,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:18:20,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:18:20,204 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 02:18:20,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 02:18:20,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196411969] [2024-11-23 02:18:20,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196411969] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 02:18:20,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 02:18:20,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 02:18:20,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045114485] [2024-11-23 02:18:20,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 02:18:20,289 INFO L204 LassoAnalysis]: Preferences: [2024-11-23 02:18:20,290 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-23 02:18:20,290 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-23 02:18:20,290 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-23 02:18:20,290 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-23 02:18:20,290 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:18:20,290 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-23 02:18:20,290 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-23 02:18:20,290 INFO L132 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration2_Loop [2024-11-23 02:18:20,290 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-23 02:18:20,290 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-23 02:18:20,291 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:18:20,300 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:18:20,307 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:18:20,377 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-23 02:18:20,377 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-23 02:18:20,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:18:20,378 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:18:20,379 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:18:20,382 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-11-23 02:18:20,383 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-23 02:18:20,383 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 02:18:20,412 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-23 02:18:20,413 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: [] [2024-11-23 02:18:20,424 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2024-11-23 02:18:20,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:18:20,425 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:18:20,430 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:18:20,433 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-23 02:18:20,433 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 02:18:20,435 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-11-23 02:18:20,459 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-23 02:18:20,460 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~s__hit~0#1=0} Honda state: {ULTIMATE.start_main_~s__hit~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-23 02:18:20,471 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2024-11-23 02:18:20,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:18:20,471 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:18:20,476 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:18:20,477 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-11-23 02:18:20,478 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-23 02:18:20,478 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 02:18:20,511 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2024-11-23 02:18:20,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:18:20,511 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:18:20,515 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:18:20,516 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-11-23 02:18:20,520 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-23 02:18:20,520 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 02:18:20,546 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-23 02:18:20,558 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2024-11-23 02:18:20,558 INFO L204 LassoAnalysis]: Preferences: [2024-11-23 02:18:20,559 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-23 02:18:20,559 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-23 02:18:20,559 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-23 02:18:20,559 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-23 02:18:20,559 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:18:20,559 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-23 02:18:20,559 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-23 02:18:20,559 INFO L132 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration2_Loop [2024-11-23 02:18:20,559 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-23 02:18:20,559 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-23 02:18:20,560 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:18:20,571 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:18:20,577 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:18:20,640 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-23 02:18:20,641 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-23 02:18:20,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:18:20,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:18:20,645 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:18:20,646 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-11-23 02:18:20,647 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-23 02:18:20,666 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-23 02:18:20,666 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-23 02:18:20,667 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-23 02:18:20,667 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-11-23 02:18:20,667 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-23 02:18:20,671 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2024-11-23 02:18:20,671 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-23 02:18:20,673 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-23 02:18:20,684 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2024-11-23 02:18:20,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:18:20,685 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:18:20,687 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:18:20,688 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-11-23 02:18:20,689 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-23 02:18:20,701 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-23 02:18:20,702 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-23 02:18:20,702 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-23 02:18:20,702 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-23 02:18:20,702 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-23 02:18:20,703 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-23 02:18:20,703 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-23 02:18:20,707 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-23 02:18:20,716 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2024-11-23 02:18:20,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:18:20,717 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:18:20,718 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:18:20,720 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-11-23 02:18:20,721 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-23 02:18:20,731 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-23 02:18:20,731 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-23 02:18:20,732 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-23 02:18:20,732 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-23 02:18:20,732 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-23 02:18:20,733 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-23 02:18:20,733 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-23 02:18:20,736 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-23 02:18:20,739 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-23 02:18:20,739 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-23 02:18:20,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:18:20,740 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:18:20,743 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:18:20,747 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-11-23 02:18:20,751 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-23 02:18:20,751 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-23 02:18:20,751 INFO L474 LassoAnalysis]: Proved termination. [2024-11-23 02:18:20,751 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 + 8489 Supporting invariants [] [2024-11-23 02:18:20,759 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2024-11-23 02:18:20,760 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-23 02:18:20,776 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:18:20,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:18:20,785 INFO L255 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-23 02:18:20,786 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 02:18:20,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:18:20,794 INFO L255 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-23 02:18:20,794 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 02:18:20,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 02:18:20,819 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-11-23 02:18:20,820 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 36 states and 57 transitions. cyclomatic complexity: 23 Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 02:18:20,846 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 36 states and 57 transitions. cyclomatic complexity: 23. Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 72 states and 109 transitions. Complement of second has 7 states. [2024-11-23 02:18:20,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-11-23 02:18:20,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 02:18:20,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2024-11-23 02:18:20,847 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 3 letters. Loop has 5 letters. [2024-11-23 02:18:20,848 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 02:18:20,848 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 8 letters. Loop has 5 letters. [2024-11-23 02:18:20,848 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 02:18:20,848 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 3 letters. Loop has 10 letters. [2024-11-23 02:18:20,848 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 02:18:20,848 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 72 states and 109 transitions. [2024-11-23 02:18:20,850 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 16 [2024-11-23 02:18:20,851 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 72 states to 61 states and 97 transitions. [2024-11-23 02:18:20,851 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 25 [2024-11-23 02:18:20,852 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 27 [2024-11-23 02:18:20,852 INFO L73 IsDeterministic]: Start isDeterministic. Operand 61 states and 97 transitions. [2024-11-23 02:18:20,852 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-23 02:18:20,852 INFO L218 hiAutomatonCegarLoop]: Abstraction has 61 states and 97 transitions. [2024-11-23 02:18:20,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states and 97 transitions. [2024-11-23 02:18:20,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 54. [2024-11-23 02:18:20,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 54 states have (on average 1.5925925925925926) internal successors, (86), 53 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 02:18:20,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 86 transitions. [2024-11-23 02:18:20,856 INFO L240 hiAutomatonCegarLoop]: Abstraction has 54 states and 86 transitions. [2024-11-23 02:18:20,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 02:18:20,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 02:18:20,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 02:18:20,859 INFO L87 Difference]: Start difference. First operand 54 states and 86 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 02:18:20,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 02:18:20,882 INFO L93 Difference]: Finished difference Result 90 states and 128 transitions. [2024-11-23 02:18:20,883 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 90 states and 128 transitions. [2024-11-23 02:18:20,884 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 30 [2024-11-23 02:18:20,885 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 90 states to 87 states and 125 transitions. [2024-11-23 02:18:20,885 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 38 [2024-11-23 02:18:20,885 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 38 [2024-11-23 02:18:20,885 INFO L73 IsDeterministic]: Start isDeterministic. Operand 87 states and 125 transitions. [2024-11-23 02:18:20,885 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-23 02:18:20,885 INFO L218 hiAutomatonCegarLoop]: Abstraction has 87 states and 125 transitions. [2024-11-23 02:18:20,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states and 125 transitions. [2024-11-23 02:18:20,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 85. [2024-11-23 02:18:20,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 85 states have (on average 1.4470588235294117) internal successors, (123), 84 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 02:18:20,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 123 transitions. [2024-11-23 02:18:20,891 INFO L240 hiAutomatonCegarLoop]: Abstraction has 85 states and 123 transitions. [2024-11-23 02:18:20,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 02:18:20,892 INFO L425 stractBuchiCegarLoop]: Abstraction has 85 states and 123 transitions. [2024-11-23 02:18:20,892 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-23 02:18:20,892 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 85 states and 123 transitions. [2024-11-23 02:18:20,893 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 30 [2024-11-23 02:18:20,893 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-23 02:18:20,893 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-23 02:18:20,894 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-23 02:18:20,894 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2024-11-23 02:18:20,894 INFO L745 eck$LassoCheckResult]: Stem: 461#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 448#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_~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; 449#$Ultimate##5 assume !false; 421#L30 [2024-11-23 02:18:20,894 INFO L747 eck$LassoCheckResult]: Loop: 421#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 422#L36 assume !(8466 == main_~s__state~0#1); 445#L41 assume 8512 == main_~s__state~0#1; 425#main_switch_1_8512#1 havoc main_#t~nondet5#1;main_~tmp___1~0#1 := main_#t~nondet5#1; 426#L81 assume 0 != main_~tmp___1~0#1;main_~s__state~0#1 := 8466; 433#$Ultimate##5 assume !false; 421#L30 [2024-11-23 02:18:20,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:18:20,895 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 2 times [2024-11-23 02:18:20,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:18:20,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161929656] [2024-11-23 02:18:20,896 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 02:18:20,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:18:20,901 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-23 02:18:20,902 INFO L228 tOrderPrioritization]: Conjunction of SSA is sat [2024-11-23 02:18:20,902 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 02:18:20,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:18:20,907 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 02:18:20,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:18:20,907 INFO L85 PathProgramCache]: Analyzing trace with hash 1365729718, now seen corresponding path program 1 times [2024-11-23 02:18:20,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:18:20,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153716492] [2024-11-23 02:18:20,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:18:20,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:18:20,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:18:20,912 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 02:18:20,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:18:20,916 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 02:18:20,916 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:18:20,916 INFO L85 PathProgramCache]: Analyzing trace with hash 644971805, now seen corresponding path program 1 times [2024-11-23 02:18:20,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:18:20,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168154660] [2024-11-23 02:18:20,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:18:20,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:18:20,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:18:20,942 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 02:18:20,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 02:18:20,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168154660] [2024-11-23 02:18:20,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168154660] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 02:18:20,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 02:18:20,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 02:18:20,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215723495] [2024-11-23 02:18:20,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 02:18:20,971 INFO L204 LassoAnalysis]: Preferences: [2024-11-23 02:18:20,971 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-23 02:18:20,971 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-23 02:18:20,971 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-23 02:18:20,972 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-23 02:18:20,972 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:18:20,972 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-23 02:18:20,972 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-23 02:18:20,972 INFO L132 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration3_Loop [2024-11-23 02:18:20,972 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-23 02:18:20,972 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-23 02:18:20,973 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:18:20,975 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:18:20,977 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:18:20,999 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-23 02:18:21,000 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-23 02:18:21,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:18:21,000 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:18:21,002 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:18:21,007 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-11-23 02:18:21,008 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-23 02:18:21,008 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 02:18:21,023 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-23 02:18:21,023 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: [] [2024-11-23 02:18:21,030 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2024-11-23 02:18:21,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:18:21,031 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:18:21,035 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:18:21,043 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2024-11-23 02:18:21,044 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-23 02:18:21,044 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 02:18:21,063 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-23 02:18:21,063 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: [] [2024-11-23 02:18:21,070 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2024-11-23 02:18:21,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:18:21,070 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:18:21,074 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:18:21,076 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-11-23 02:18:21,077 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-23 02:18:21,077 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 02:18:21,099 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2024-11-23 02:18:21,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:18:21,100 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:18:21,101 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:18:21,102 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-11-23 02:18:21,104 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-23 02:18:21,104 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 02:18:21,118 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-23 02:18:21,132 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2024-11-23 02:18:21,132 INFO L204 LassoAnalysis]: Preferences: [2024-11-23 02:18:21,132 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-23 02:18:21,132 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-23 02:18:21,132 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-23 02:18:21,133 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-23 02:18:21,133 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:18:21,133 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-23 02:18:21,133 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-23 02:18:21,133 INFO L132 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration3_Loop [2024-11-23 02:18:21,133 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-23 02:18:21,133 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-23 02:18:21,134 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:18:21,137 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:18:21,142 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:18:21,162 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-23 02:18:21,163 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-23 02:18:21,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:18:21,163 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:18:21,167 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:18:21,170 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-11-23 02:18:21,170 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-23 02:18:21,180 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-23 02:18:21,181 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-23 02:18:21,181 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-23 02:18:21,181 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-23 02:18:21,181 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-23 02:18:21,181 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-23 02:18:21,182 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-23 02:18:21,186 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-23 02:18:21,198 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2024-11-23 02:18:21,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:18:21,199 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:18:21,202 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:18:21,206 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2024-11-23 02:18:21,207 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-23 02:18:21,218 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-23 02:18:21,218 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-23 02:18:21,218 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-23 02:18:21,218 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-23 02:18:21,218 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-23 02:18:21,219 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-23 02:18:21,220 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-23 02:18:21,221 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-23 02:18:21,224 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-23 02:18:21,224 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-23 02:18:21,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:18:21,225 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:18:21,230 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:18:21,237 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2024-11-23 02:18:21,237 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-23 02:18:21,237 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-23 02:18:21,237 INFO L474 LassoAnalysis]: Proved termination. [2024-11-23 02:18:21,238 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 [] [2024-11-23 02:18:21,248 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2024-11-23 02:18:21,249 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-23 02:18:21,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:18:21,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:18:21,265 INFO L255 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-23 02:18:21,266 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 02:18:21,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:18:21,272 INFO L255 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-23 02:18:21,272 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 02:18:21,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 02:18:21,296 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-11-23 02:18:21,296 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 85 states and 123 transitions. cyclomatic complexity: 44 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) [2024-11-23 02:18:21,361 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 85 states and 123 transitions. cyclomatic complexity: 44. 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 255 states and 373 transitions. Complement of second has 9 states. [2024-11-23 02:18:21,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2024-11-23 02:18:21,363 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) [2024-11-23 02:18:21,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 46 transitions. [2024-11-23 02:18:21,363 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 46 transitions. Stem has 3 letters. Loop has 6 letters. [2024-11-23 02:18:21,363 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 02:18:21,363 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 46 transitions. Stem has 9 letters. Loop has 6 letters. [2024-11-23 02:18:21,363 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 02:18:21,364 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 46 transitions. Stem has 3 letters. Loop has 12 letters. [2024-11-23 02:18:21,364 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 02:18:21,364 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 255 states and 373 transitions. [2024-11-23 02:18:21,367 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 52 [2024-11-23 02:18:21,369 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 255 states to 254 states and 372 transitions. [2024-11-23 02:18:21,369 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 69 [2024-11-23 02:18:21,369 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 72 [2024-11-23 02:18:21,369 INFO L73 IsDeterministic]: Start isDeterministic. Operand 254 states and 372 transitions. [2024-11-23 02:18:21,369 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-23 02:18:21,370 INFO L218 hiAutomatonCegarLoop]: Abstraction has 254 states and 372 transitions. [2024-11-23 02:18:21,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states and 372 transitions. [2024-11-23 02:18:21,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 199. [2024-11-23 02:18:21,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 199 states have (on average 1.4522613065326633) internal successors, (289), 198 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 02:18:21,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 289 transitions. [2024-11-23 02:18:21,385 INFO L240 hiAutomatonCegarLoop]: Abstraction has 199 states and 289 transitions. [2024-11-23 02:18:21,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 02:18:21,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 02:18:21,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 02:18:21,386 INFO L87 Difference]: Start difference. First operand 199 states and 289 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) [2024-11-23 02:18:21,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 02:18:21,402 INFO L93 Difference]: Finished difference Result 66 states and 95 transitions. [2024-11-23 02:18:21,403 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 66 states and 95 transitions. [2024-11-23 02:18:21,403 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 19 [2024-11-23 02:18:21,404 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 66 states to 61 states and 90 transitions. [2024-11-23 02:18:21,404 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 25 [2024-11-23 02:18:21,404 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25 [2024-11-23 02:18:21,404 INFO L73 IsDeterministic]: Start isDeterministic. Operand 61 states and 90 transitions. [2024-11-23 02:18:21,404 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-23 02:18:21,405 INFO L218 hiAutomatonCegarLoop]: Abstraction has 61 states and 90 transitions. [2024-11-23 02:18:21,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states and 90 transitions. [2024-11-23 02:18:21,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2024-11-23 02:18:21,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 61 states have (on average 1.4754098360655739) internal successors, (90), 60 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 02:18:21,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 90 transitions. [2024-11-23 02:18:21,407 INFO L240 hiAutomatonCegarLoop]: Abstraction has 61 states and 90 transitions. [2024-11-23 02:18:21,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 02:18:21,408 INFO L425 stractBuchiCegarLoop]: Abstraction has 61 states and 90 transitions. [2024-11-23 02:18:21,409 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-23 02:18:21,409 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 61 states and 90 transitions. [2024-11-23 02:18:21,409 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 19 [2024-11-23 02:18:21,409 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-23 02:18:21,409 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-23 02:18:21,410 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1] [2024-11-23 02:18:21,410 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2024-11-23 02:18:21,410 INFO L745 eck$LassoCheckResult]: Stem: 1122#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 1113#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_~s__state~0#1, main_~s__hit~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;havoc main_#t~nondet4#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0; 1114#$Ultimate##5 assume !false; 1084#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 1085#L36 assume 8466 == main_~s__state~0#1; 1112#$Ultimate##17 assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2; 1128#L69-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8656; 1124#$Ultimate##5 assume !false; 1123#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 1110#L36 assume !(8466 == main_~s__state~0#1); 1111#L41 [2024-11-23 02:18:21,410 INFO L747 eck$LassoCheckResult]: Loop: 1111#L41 assume 8512 == main_~s__state~0#1; 1086#main_switch_1_8512#1 havoc main_#t~nondet5#1;main_~tmp___1~0#1 := main_#t~nondet5#1; 1087#L81 assume !(0 != main_~tmp___1~0#1);main_~s__state~0#1 := 8640; 1108#$Ultimate##5 assume !false; 1142#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 1141#L36 assume !(8466 == main_~s__state~0#1); 1111#L41 [2024-11-23 02:18:21,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:18:21,411 INFO L85 PathProgramCache]: Analyzing trace with hash -1523382593, now seen corresponding path program 1 times [2024-11-23 02:18:21,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:18:21,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283085609] [2024-11-23 02:18:21,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:18:21,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:18:21,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:18:21,417 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 02:18:21,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:18:21,421 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 02:18:21,422 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:18:21,422 INFO L85 PathProgramCache]: Analyzing trace with hash 1623382260, now seen corresponding path program 1 times [2024-11-23 02:18:21,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:18:21,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132821804] [2024-11-23 02:18:21,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:18:21,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:18:21,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:18:21,426 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 02:18:21,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:18:21,428 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 02:18:21,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:18:21,429 INFO L85 PathProgramCache]: Analyzing trace with hash -1141286606, now seen corresponding path program 1 times [2024-11-23 02:18:21,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:18:21,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776256006] [2024-11-23 02:18:21,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:18:21,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:18:21,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:18:21,461 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 02:18:21,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 02:18:21,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776256006] [2024-11-23 02:18:21,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776256006] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 02:18:21,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 02:18:21,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 02:18:21,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730753057] [2024-11-23 02:18:21,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 02:18:21,482 INFO L204 LassoAnalysis]: Preferences: [2024-11-23 02:18:21,483 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-23 02:18:21,483 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-23 02:18:21,483 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-23 02:18:21,483 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-23 02:18:21,483 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:18:21,483 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-23 02:18:21,483 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-23 02:18:21,483 INFO L132 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration4_Loop [2024-11-23 02:18:21,483 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-23 02:18:21,483 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-23 02:18:21,484 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:18:21,488 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:18:21,504 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-23 02:18:21,505 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-23 02:18:21,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:18:21,505 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:18:21,507 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:18:21,511 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2024-11-23 02:18:21,511 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-23 02:18:21,513 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 02:18:21,538 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2024-11-23 02:18:21,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:18:21,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:18:21,542 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:18:21,543 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2024-11-23 02:18:21,544 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-23 02:18:21,544 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 02:18:21,557 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-23 02:18:21,564 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2024-11-23 02:18:21,565 INFO L204 LassoAnalysis]: Preferences: [2024-11-23 02:18:21,565 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-23 02:18:21,565 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-23 02:18:21,565 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-23 02:18:21,565 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-23 02:18:21,565 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:18:21,565 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-23 02:18:21,565 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-23 02:18:21,565 INFO L132 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration4_Loop [2024-11-23 02:18:21,565 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-23 02:18:21,565 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-23 02:18:21,566 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:18:21,574 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:18:21,635 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-23 02:18:21,635 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-23 02:18:21,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:18:21,635 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:18:21,642 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:18:21,644 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2024-11-23 02:18:21,644 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-23 02:18:21,658 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-23 02:18:21,658 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-23 02:18:21,659 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-23 02:18:21,659 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-23 02:18:21,659 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-23 02:18:21,660 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-23 02:18:21,660 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-23 02:18:21,668 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-23 02:18:21,670 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-23 02:18:21,670 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-23 02:18:21,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:18:21,671 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:18:21,676 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:18:21,678 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2024-11-23 02:18:21,679 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-23 02:18:21,679 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-23 02:18:21,679 INFO L474 LassoAnalysis]: Proved termination. [2024-11-23 02:18:21,679 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 [] [2024-11-23 02:18:21,692 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2024-11-23 02:18:21,698 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-23 02:18:21,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:18:21,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:18:21,729 INFO L255 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-23 02:18:21,729 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 02:18:21,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:18:21,754 INFO L255 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-23 02:18:21,755 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 02:18:21,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 02:18:21,804 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-11-23 02:18:21,804 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 61 states and 90 transitions. cyclomatic complexity: 33 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 02:18:21,890 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 61 states and 90 transitions. cyclomatic complexity: 33. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 167 states and 244 transitions. Complement of second has 9 states. [2024-11-23 02:18:21,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2024-11-23 02:18:21,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 02:18:21,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 47 transitions. [2024-11-23 02:18:21,892 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 47 transitions. Stem has 10 letters. Loop has 6 letters. [2024-11-23 02:18:21,893 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 02:18:21,893 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 47 transitions. Stem has 16 letters. Loop has 6 letters. [2024-11-23 02:18:21,893 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 02:18:21,893 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 47 transitions. Stem has 10 letters. Loop has 12 letters. [2024-11-23 02:18:21,893 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 02:18:21,893 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 167 states and 244 transitions. [2024-11-23 02:18:21,900 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 30 [2024-11-23 02:18:21,900 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 167 states to 147 states and 216 transitions. [2024-11-23 02:18:21,900 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 43 [2024-11-23 02:18:21,901 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 46 [2024-11-23 02:18:21,901 INFO L73 IsDeterministic]: Start isDeterministic. Operand 147 states and 216 transitions. [2024-11-23 02:18:21,901 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-23 02:18:21,901 INFO L218 hiAutomatonCegarLoop]: Abstraction has 147 states and 216 transitions. [2024-11-23 02:18:21,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states and 216 transitions. [2024-11-23 02:18:21,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 141. [2024-11-23 02:18:21,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 141 states have (on average 1.4680851063829787) internal successors, (207), 140 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 02:18:21,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 207 transitions. [2024-11-23 02:18:21,909 INFO L240 hiAutomatonCegarLoop]: Abstraction has 141 states and 207 transitions. [2024-11-23 02:18:21,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 02:18:21,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 02:18:21,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 02:18:21,910 INFO L87 Difference]: Start difference. First operand 141 states and 207 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 02:18:21,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 02:18:21,938 INFO L93 Difference]: Finished difference Result 180 states and 247 transitions. [2024-11-23 02:18:21,938 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 180 states and 247 transitions. [2024-11-23 02:18:21,939 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 36 [2024-11-23 02:18:21,939 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 180 states to 170 states and 235 transitions. [2024-11-23 02:18:21,940 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 55 [2024-11-23 02:18:21,940 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 59 [2024-11-23 02:18:21,940 INFO L73 IsDeterministic]: Start isDeterministic. Operand 170 states and 235 transitions. [2024-11-23 02:18:21,940 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-23 02:18:21,940 INFO L218 hiAutomatonCegarLoop]: Abstraction has 170 states and 235 transitions. [2024-11-23 02:18:21,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states and 235 transitions. [2024-11-23 02:18:21,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 146. [2024-11-23 02:18:21,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 146 states have (on average 1.4315068493150684) internal successors, (209), 145 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 02:18:21,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 209 transitions. [2024-11-23 02:18:21,955 INFO L240 hiAutomatonCegarLoop]: Abstraction has 146 states and 209 transitions. [2024-11-23 02:18:21,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 02:18:21,959 INFO L425 stractBuchiCegarLoop]: Abstraction has 146 states and 209 transitions. [2024-11-23 02:18:21,959 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-11-23 02:18:21,959 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 146 states and 209 transitions. [2024-11-23 02:18:21,959 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 35 [2024-11-23 02:18:21,959 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-23 02:18:21,959 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-23 02:18:21,960 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-23 02:18:21,960 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 02:18:21,960 INFO L745 eck$LassoCheckResult]: Stem: 1752#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 1740#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_~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; 1741#$Ultimate##5 assume !false; 1823#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 1824#L36 assume 8466 == main_~s__state~0#1; 1802#$Ultimate##17 assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2; 1799#L69-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8656; 1720#$Ultimate##5 [2024-11-23 02:18:21,960 INFO L747 eck$LassoCheckResult]: Loop: 1720#$Ultimate##5 assume !false; 1708#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 1709#L36 assume !(8466 == main_~s__state~0#1); 1738#L41 assume !(8512 == main_~s__state~0#1); 1747#L57 assume !(8640 == main_~s__state~0#1); 1716#L61 assume 8656 == main_~s__state~0#1; 1717#$Ultimate##31 assume 2 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 3; 1727#L100-1 assume 4 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 5; 1729#L104-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8640; 1735#$Ultimate##5 assume !false; 1820#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 1818#L36 assume 8466 == main_~s__state~0#1; 1758#$Ultimate##17 assume !(0 == main_~blastFlag~0#1); 1749#L69-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8656; 1720#$Ultimate##5 [2024-11-23 02:18:21,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:18:21,964 INFO L85 PathProgramCache]: Analyzing trace with hash 1810723569, now seen corresponding path program 1 times [2024-11-23 02:18:21,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:18:21,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51188331] [2024-11-23 02:18:21,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:18:21,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:18:21,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:18:21,970 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 02:18:21,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:18:21,989 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 02:18:21,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:18:21,990 INFO L85 PathProgramCache]: Analyzing trace with hash -1982564596, now seen corresponding path program 1 times [2024-11-23 02:18:21,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:18:21,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497415156] [2024-11-23 02:18:21,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:18:21,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:18:21,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:18:22,033 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 02:18:22,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 02:18:22,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497415156] [2024-11-23 02:18:22,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497415156] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 02:18:22,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 02:18:22,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 02:18:22,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359055331] [2024-11-23 02:18:22,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 02:18:22,034 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-23 02:18:22,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 02:18:22,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 02:18:22,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 02:18:22,034 INFO L87 Difference]: Start difference. First operand 146 states and 209 transitions. cyclomatic complexity: 71 Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 02:18:22,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 02:18:22,079 INFO L93 Difference]: Finished difference Result 194 states and 270 transitions. [2024-11-23 02:18:22,079 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 194 states and 270 transitions. [2024-11-23 02:18:22,080 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 59 [2024-11-23 02:18:22,081 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 194 states to 194 states and 270 transitions. [2024-11-23 02:18:22,081 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 70 [2024-11-23 02:18:22,081 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 70 [2024-11-23 02:18:22,081 INFO L73 IsDeterministic]: Start isDeterministic. Operand 194 states and 270 transitions. [2024-11-23 02:18:22,081 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-23 02:18:22,081 INFO L218 hiAutomatonCegarLoop]: Abstraction has 194 states and 270 transitions. [2024-11-23 02:18:22,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states and 270 transitions. [2024-11-23 02:18:22,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 194. [2024-11-23 02:18:22,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 194 states have (on average 1.3917525773195876) internal successors, (270), 193 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 02:18:22,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 270 transitions. [2024-11-23 02:18:22,085 INFO L240 hiAutomatonCegarLoop]: Abstraction has 194 states and 270 transitions. [2024-11-23 02:18:22,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 02:18:22,093 INFO L425 stractBuchiCegarLoop]: Abstraction has 194 states and 270 transitions. [2024-11-23 02:18:22,093 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-11-23 02:18:22,102 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 194 states and 270 transitions. [2024-11-23 02:18:22,102 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 59 [2024-11-23 02:18:22,102 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-23 02:18:22,102 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-23 02:18:22,103 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-23 02:18:22,103 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 02:18:22,103 INFO L745 eck$LassoCheckResult]: Stem: 2106#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 2084#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_~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; 2085#$Ultimate##5 assume !false; 2185#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 2186#L36 assume 8466 == main_~s__state~0#1; 2164#$Ultimate##17 assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2; 2160#L69-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8656; 2128#$Ultimate##5 [2024-11-23 02:18:22,103 INFO L747 eck$LassoCheckResult]: Loop: 2128#$Ultimate##5 assume !false; 2142#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 2140#L36 assume !(8466 == main_~s__state~0#1); 2138#L41 assume !(8512 == main_~s__state~0#1); 2136#L57 assume !(8640 == main_~s__state~0#1); 2062#L61 assume 8656 == main_~s__state~0#1; 2063#$Ultimate##31 assume 2 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 3; 2073#L100-1 assume !(4 == main_~blastFlag~0#1); 2074#L107 assume !(5 == main_~blastFlag~0#1); 2107#L104-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8640; 2108#$Ultimate##5 assume !false; 2169#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 2170#L36 assume 8466 == main_~s__state~0#1; 2149#$Ultimate##17 assume !(0 == main_~blastFlag~0#1); 2145#L69-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8656; 2128#$Ultimate##5 [2024-11-23 02:18:22,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:18:22,103 INFO L85 PathProgramCache]: Analyzing trace with hash 1810723569, now seen corresponding path program 2 times [2024-11-23 02:18:22,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:18:22,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262463432] [2024-11-23 02:18:22,104 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 02:18:22,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:18:22,109 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-23 02:18:22,109 INFO L228 tOrderPrioritization]: Conjunction of SSA is sat [2024-11-23 02:18:22,109 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 02:18:22,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:18:22,118 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 02:18:22,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:18:22,123 INFO L85 PathProgramCache]: Analyzing trace with hash 862619384, now seen corresponding path program 1 times [2024-11-23 02:18:22,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:18:22,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299252522] [2024-11-23 02:18:22,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:18:22,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:18:22,118 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2024-11-23 02:18:22,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:18:22,136 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2024-11-23 02:18:22,140 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2024-11-23 02:18:22,161 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 02:18:22,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 02:18:22,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299252522] [2024-11-23 02:18:22,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299252522] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 02:18:22,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 02:18:22,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 02:18:22,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775262996] [2024-11-23 02:18:22,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 02:18:22,162 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-23 02:18:22,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 02:18:22,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 02:18:22,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 02:18:22,163 INFO L87 Difference]: Start difference. First operand 194 states and 270 transitions. cyclomatic complexity: 84 Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 02:18:22,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 02:18:22,205 INFO L93 Difference]: Finished difference Result 169 states and 218 transitions. [2024-11-23 02:18:22,205 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 169 states and 218 transitions. [2024-11-23 02:18:22,206 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2024-11-23 02:18:22,207 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 169 states to 117 states and 149 transitions. [2024-11-23 02:18:22,207 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 58 [2024-11-23 02:18:22,207 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 65 [2024-11-23 02:18:22,207 INFO L73 IsDeterministic]: Start isDeterministic. Operand 117 states and 149 transitions. [2024-11-23 02:18:22,207 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-23 02:18:22,207 INFO L218 hiAutomatonCegarLoop]: Abstraction has 117 states and 149 transitions. [2024-11-23 02:18:22,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states and 149 transitions. [2024-11-23 02:18:22,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 105. [2024-11-23 02:18:22,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 105 states have (on average 1.276190476190476) internal successors, (134), 104 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 02:18:22,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 134 transitions. [2024-11-23 02:18:22,213 INFO L240 hiAutomatonCegarLoop]: Abstraction has 105 states and 134 transitions. [2024-11-23 02:18:22,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 02:18:22,214 INFO L425 stractBuchiCegarLoop]: Abstraction has 105 states and 134 transitions. [2024-11-23 02:18:22,214 INFO L332 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2024-11-23 02:18:22,214 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 105 states and 134 transitions. [2024-11-23 02:18:22,215 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2024-11-23 02:18:22,218 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-23 02:18:22,218 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-23 02:18:22,219 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-23 02:18:22,219 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 02:18:22,219 INFO L745 eck$LassoCheckResult]: Stem: 2457#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 2446#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_~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; 2447#$Ultimate##5 assume !false; 2483#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 2484#L36 assume 8466 == main_~s__state~0#1; 2477#$Ultimate##17 assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2; 2471#L69-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8656; 2473#$Ultimate##5 [2024-11-23 02:18:22,219 INFO L747 eck$LassoCheckResult]: Loop: 2473#$Ultimate##5 assume !false; 2504#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 2500#L36 assume !(8466 == main_~s__state~0#1); 2501#L41 assume !(8512 == main_~s__state~0#1); 2459#L57 assume !(8640 == main_~s__state~0#1); 2427#L61 assume 8656 == main_~s__state~0#1; 2428#$Ultimate##31 assume 2 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 3; 2440#L100-1 assume !(4 == main_~blastFlag~0#1); 2441#L107 assume !(5 == main_~blastFlag~0#1); 2448#L104-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8640; 2433#$Ultimate##5 assume !false; 2423#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 2424#L36 assume !(8466 == main_~s__state~0#1); 2443#L41 assume !(8512 == main_~s__state~0#1); 2452#L57 assume 8640 == main_~s__state~0#1; 2449#$Ultimate##26 assume !(3 == main_~blastFlag~0#1); 2451#L89-1 assume !(0 != main_~s__hit~0#1);main_~s__state~0#1 := 8656; 2473#$Ultimate##5 [2024-11-23 02:18:22,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:18:22,219 INFO L85 PathProgramCache]: Analyzing trace with hash 1810723569, now seen corresponding path program 3 times [2024-11-23 02:18:22,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:18:22,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350824153] [2024-11-23 02:18:22,219 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-23 02:18:22,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:18:22,224 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-23 02:18:22,227 INFO L228 tOrderPrioritization]: Conjunction of SSA is sat [2024-11-23 02:18:22,227 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 02:18:22,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:18:22,233 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 02:18:22,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:18:22,235 INFO L85 PathProgramCache]: Analyzing trace with hash 49895967, now seen corresponding path program 1 times [2024-11-23 02:18:22,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:18:22,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254284018] [2024-11-23 02:18:22,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:18:22,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:18:22,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:18:22,269 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 02:18:22,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 02:18:22,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254284018] [2024-11-23 02:18:22,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254284018] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 02:18:22,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 02:18:22,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 02:18:22,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899013366] [2024-11-23 02:18:22,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 02:18:22,271 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-23 02:18:22,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 02:18:22,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 02:18:22,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 02:18:22,272 INFO L87 Difference]: Start difference. First operand 105 states and 134 transitions. cyclomatic complexity: 36 Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 02:18:22,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 02:18:22,291 INFO L93 Difference]: Finished difference Result 116 states and 146 transitions. [2024-11-23 02:18:22,291 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 116 states and 146 transitions. [2024-11-23 02:18:22,292 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 56 [2024-11-23 02:18:22,293 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 116 states to 116 states and 146 transitions. [2024-11-23 02:18:22,293 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 64 [2024-11-23 02:18:22,294 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 64 [2024-11-23 02:18:22,294 INFO L73 IsDeterministic]: Start isDeterministic. Operand 116 states and 146 transitions. [2024-11-23 02:18:22,294 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-23 02:18:22,294 INFO L218 hiAutomatonCegarLoop]: Abstraction has 116 states and 146 transitions. [2024-11-23 02:18:22,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states and 146 transitions. [2024-11-23 02:18:22,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2024-11-23 02:18:22,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 116 states have (on average 1.2586206896551724) internal successors, (146), 115 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 02:18:22,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 146 transitions. [2024-11-23 02:18:22,298 INFO L240 hiAutomatonCegarLoop]: Abstraction has 116 states and 146 transitions. [2024-11-23 02:18:22,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 02:18:22,299 INFO L425 stractBuchiCegarLoop]: Abstraction has 116 states and 146 transitions. [2024-11-23 02:18:22,299 INFO L332 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2024-11-23 02:18:22,299 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 116 states and 146 transitions. [2024-11-23 02:18:22,304 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 56 [2024-11-23 02:18:22,304 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-23 02:18:22,304 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-23 02:18:22,304 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-23 02:18:22,304 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 02:18:22,305 INFO L745 eck$LassoCheckResult]: Stem: 2685#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 2672#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_~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; 2673#$Ultimate##5 assume !false; 2742#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 2741#L36 assume 8466 == main_~s__state~0#1; 2665#$Ultimate##17 assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2; 2666#L69-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8656; 2716#$Ultimate##5 [2024-11-23 02:18:22,305 INFO L747 eck$LassoCheckResult]: Loop: 2716#$Ultimate##5 assume !false; 2760#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 2759#L36 assume !(8466 == main_~s__state~0#1); 2758#L41 assume !(8512 == main_~s__state~0#1); 2757#L57 assume !(8640 == main_~s__state~0#1); 2755#L61 assume 8656 == main_~s__state~0#1; 2754#$Ultimate##31 assume !(2 == main_~blastFlag~0#1); 2667#L100-1 assume !(4 == main_~blastFlag~0#1); 2668#L107 assume !(5 == main_~blastFlag~0#1); 2765#L104-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8640; 2729#$Ultimate##5 assume !false; 2764#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 2763#L36 assume !(8466 == main_~s__state~0#1); 2761#L41 assume !(8512 == main_~s__state~0#1); 2703#L57 assume 8640 == main_~s__state~0#1; 2756#$Ultimate##26 assume !(3 == main_~blastFlag~0#1); 2762#L89-1 assume !(0 != main_~s__hit~0#1);main_~s__state~0#1 := 8656; 2716#$Ultimate##5 [2024-11-23 02:18:22,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:18:22,305 INFO L85 PathProgramCache]: Analyzing trace with hash 1810723569, now seen corresponding path program 4 times [2024-11-23 02:18:22,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:18:22,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917911279] [2024-11-23 02:18:22,305 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-23 02:18:22,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:18:22,309 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-23 02:18:22,309 INFO L228 tOrderPrioritization]: Conjunction of SSA is sat [2024-11-23 02:18:22,310 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 02:18:22,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:18:22,312 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 02:18:22,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:18:22,313 INFO L85 PathProgramCache]: Analyzing trace with hash 750960545, now seen corresponding path program 1 times [2024-11-23 02:18:22,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:18:22,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325039688] [2024-11-23 02:18:22,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:18:22,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:18:22,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:18:22,326 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 02:18:22,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 02:18:22,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325039688] [2024-11-23 02:18:22,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325039688] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 02:18:22,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 02:18:22,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 02:18:22,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680038616] [2024-11-23 02:18:22,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 02:18:22,327 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-23 02:18:22,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 02:18:22,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 02:18:22,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 02:18:22,328 INFO L87 Difference]: Start difference. First operand 116 states and 146 transitions. cyclomatic complexity: 38 Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 02:18:22,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 02:18:22,334 INFO L93 Difference]: Finished difference Result 142 states and 175 transitions. [2024-11-23 02:18:22,334 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 142 states and 175 transitions. [2024-11-23 02:18:22,335 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 41 [2024-11-23 02:18:22,336 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 142 states to 137 states and 167 transitions. [2024-11-23 02:18:22,337 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 85 [2024-11-23 02:18:22,337 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 85 [2024-11-23 02:18:22,337 INFO L73 IsDeterministic]: Start isDeterministic. Operand 137 states and 167 transitions. [2024-11-23 02:18:22,337 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-23 02:18:22,337 INFO L218 hiAutomatonCegarLoop]: Abstraction has 137 states and 167 transitions. [2024-11-23 02:18:22,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states and 167 transitions. [2024-11-23 02:18:22,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 109. [2024-11-23 02:18:22,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 109 states have (on average 1.2477064220183487) internal successors, (136), 108 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 02:18:22,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 136 transitions. [2024-11-23 02:18:22,339 INFO L240 hiAutomatonCegarLoop]: Abstraction has 109 states and 136 transitions. [2024-11-23 02:18:22,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 02:18:22,340 INFO L425 stractBuchiCegarLoop]: Abstraction has 109 states and 136 transitions. [2024-11-23 02:18:22,340 INFO L332 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2024-11-23 02:18:22,340 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 109 states and 136 transitions. [2024-11-23 02:18:22,341 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 41 [2024-11-23 02:18:22,341 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-23 02:18:22,341 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-23 02:18:22,342 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-23 02:18:22,342 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 02:18:22,342 INFO L745 eck$LassoCheckResult]: Stem: 2951#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 2938#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_~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; 2939#$Ultimate##5 assume !false; 2916#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 2917#L36 assume 8466 == main_~s__state~0#1; 2937#$Ultimate##17 assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2; 2983#L69-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8656; 2924#$Ultimate##5 [2024-11-23 02:18:22,342 INFO L747 eck$LassoCheckResult]: Loop: 2924#$Ultimate##5 assume !false; 2914#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 2915#L36 assume !(8466 == main_~s__state~0#1); 2936#L41 assume !(8512 == main_~s__state~0#1); 2946#L57 assume !(8640 == main_~s__state~0#1); 2918#L61 assume 8656 == main_~s__state~0#1; 2919#$Ultimate##31 assume !(2 == main_~blastFlag~0#1); 3015#L100-1 assume !(4 == main_~blastFlag~0#1); 2941#L107 assume !(5 == main_~blastFlag~0#1); 2942#L104-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8640; 2924#$Ultimate##5 [2024-11-23 02:18:22,342 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:18:22,342 INFO L85 PathProgramCache]: Analyzing trace with hash 1810723569, now seen corresponding path program 5 times [2024-11-23 02:18:22,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:18:22,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530240822] [2024-11-23 02:18:22,343 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-23 02:18:22,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:18:22,347 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-23 02:18:22,347 INFO L228 tOrderPrioritization]: Conjunction of SSA is sat [2024-11-23 02:18:22,347 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 02:18:22,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:18:22,350 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 02:18:22,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:18:22,350 INFO L85 PathProgramCache]: Analyzing trace with hash 1947655960, now seen corresponding path program 1 times [2024-11-23 02:18:22,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:18:22,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245845316] [2024-11-23 02:18:22,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:18:22,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:18:22,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:18:22,354 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 02:18:22,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:18:22,356 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 02:18:22,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:18:22,356 INFO L85 PathProgramCache]: Analyzing trace with hash 163931656, now seen corresponding path program 1 times [2024-11-23 02:18:22,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:18:22,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637446200] [2024-11-23 02:18:22,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:18:22,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:18:22,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:18:22,403 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 02:18:22,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 02:18:22,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637446200] [2024-11-23 02:18:22,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637446200] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 02:18:22,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 02:18:22,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 02:18:22,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277806859] [2024-11-23 02:18:22,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 02:18:22,527 INFO L204 LassoAnalysis]: Preferences: [2024-11-23 02:18:22,527 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-23 02:18:22,527 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-23 02:18:22,527 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-23 02:18:22,527 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-23 02:18:22,527 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:18:22,527 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-23 02:18:22,527 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-23 02:18:22,527 INFO L132 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration9_Loop [2024-11-23 02:18:22,527 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-23 02:18:22,527 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-23 02:18:22,528 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:18:22,534 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:18:22,536 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:18:22,600 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-23 02:18:22,600 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-23 02:18:22,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:18:22,600 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:18:22,602 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:18:22,605 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2024-11-23 02:18:22,606 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-23 02:18:22,606 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 02:18:22,631 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2024-11-23 02:18:22,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:18:22,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:18:22,633 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:18:22,634 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2024-11-23 02:18:22,634 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-23 02:18:22,635 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 02:18:22,651 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-23 02:18:22,659 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2024-11-23 02:18:22,660 INFO L204 LassoAnalysis]: Preferences: [2024-11-23 02:18:22,660 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-23 02:18:22,660 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-23 02:18:22,660 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-23 02:18:22,660 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-23 02:18:22,660 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:18:22,660 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-23 02:18:22,660 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-23 02:18:22,660 INFO L132 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration9_Loop [2024-11-23 02:18:22,660 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-23 02:18:22,660 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-23 02:18:22,661 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:18:22,665 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:18:22,667 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 02:18:22,725 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-23 02:18:22,725 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-23 02:18:22,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:18:22,725 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:18:22,730 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:18:22,730 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2024-11-23 02:18:22,731 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-23 02:18:22,741 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-23 02:18:22,741 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-23 02:18:22,741 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-23 02:18:22,741 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-23 02:18:22,741 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-23 02:18:22,742 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-23 02:18:22,742 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-23 02:18:22,744 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-23 02:18:22,746 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-23 02:18:22,746 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-23 02:18:22,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:18:22,746 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:18:22,747 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:18:22,748 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2024-11-23 02:18:22,749 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-23 02:18:22,749 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-23 02:18:22,749 INFO L474 LassoAnalysis]: Proved termination. [2024-11-23 02:18:22,749 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 [] [2024-11-23 02:18:22,755 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2024-11-23 02:18:22,756 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-23 02:18:22,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:18:22,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:18:22,778 INFO L255 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-23 02:18:22,778 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 02:18:22,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:18:22,788 INFO L255 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-23 02:18:22,788 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 02:18:22,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 02:18:22,811 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-23 02:18:22,811 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 109 states and 136 transitions. cyclomatic complexity: 36 Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 02:18:22,826 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 109 states and 136 transitions. cyclomatic complexity: 36. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 148 states and 178 transitions. Complement of second has 6 states. [2024-11-23 02:18:22,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-11-23 02:18:22,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 02:18:22,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 38 transitions. [2024-11-23 02:18:22,827 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 38 transitions. Stem has 7 letters. Loop has 10 letters. [2024-11-23 02:18:22,828 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 02:18:22,828 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 38 transitions. Stem has 17 letters. Loop has 10 letters. [2024-11-23 02:18:22,828 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 02:18:22,828 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 38 transitions. Stem has 7 letters. Loop has 20 letters. [2024-11-23 02:18:22,828 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 02:18:22,828 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 148 states and 178 transitions. [2024-11-23 02:18:22,829 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 41 [2024-11-23 02:18:22,829 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 148 states to 109 states and 132 transitions. [2024-11-23 02:18:22,829 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 57 [2024-11-23 02:18:22,829 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 57 [2024-11-23 02:18:22,829 INFO L73 IsDeterministic]: Start isDeterministic. Operand 109 states and 132 transitions. [2024-11-23 02:18:22,829 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-23 02:18:22,829 INFO L218 hiAutomatonCegarLoop]: Abstraction has 109 states and 132 transitions. [2024-11-23 02:18:22,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states and 132 transitions. [2024-11-23 02:18:22,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2024-11-23 02:18:22,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 109 states have (on average 1.2110091743119267) internal successors, (132), 108 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 02:18:22,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 132 transitions. [2024-11-23 02:18:22,831 INFO L240 hiAutomatonCegarLoop]: Abstraction has 109 states and 132 transitions. [2024-11-23 02:18:22,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 02:18:22,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 02:18:22,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 02:18:22,831 INFO L87 Difference]: Start difference. First operand 109 states and 132 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 02:18:22,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 02:18:22,840 INFO L93 Difference]: Finished difference Result 92 states and 106 transitions. [2024-11-23 02:18:22,840 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 92 states and 106 transitions. [2024-11-23 02:18:22,840 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 21 [2024-11-23 02:18:22,841 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 92 states to 62 states and 71 transitions. [2024-11-23 02:18:22,841 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 42 [2024-11-23 02:18:22,841 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 46 [2024-11-23 02:18:22,841 INFO L73 IsDeterministic]: Start isDeterministic. Operand 62 states and 71 transitions. [2024-11-23 02:18:22,841 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-23 02:18:22,841 INFO L218 hiAutomatonCegarLoop]: Abstraction has 62 states and 71 transitions. [2024-11-23 02:18:22,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states and 71 transitions. [2024-11-23 02:18:22,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2024-11-23 02:18:22,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 62 states have (on average 1.1451612903225807) internal successors, (71), 61 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 02:18:22,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 71 transitions. [2024-11-23 02:18:22,842 INFO L240 hiAutomatonCegarLoop]: Abstraction has 62 states and 71 transitions. [2024-11-23 02:18:22,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 02:18:22,843 INFO L425 stractBuchiCegarLoop]: Abstraction has 62 states and 71 transitions. [2024-11-23 02:18:22,843 INFO L332 stractBuchiCegarLoop]: ======== Iteration 10 ============ [2024-11-23 02:18:22,843 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 62 states and 71 transitions. [2024-11-23 02:18:22,843 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 21 [2024-11-23 02:18:22,843 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-23 02:18:22,843 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-23 02:18:22,843 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 02:18:22,843 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 02:18:22,843 INFO L745 eck$LassoCheckResult]: Stem: 3477#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 3466#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_~s__state~0#1, main_~s__hit~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;havoc main_#t~nondet4#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0; 3467#$Ultimate##5 assume !false; 3496#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 3495#L36 assume 8466 == main_~s__state~0#1; 3494#$Ultimate##17 assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2; 3493#L69-1 assume !(0 != main_~s__hit~0#1);main_~s__state~0#1 := 8512; 3486#$Ultimate##5 assume !false; 3484#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 3482#L36 assume !(8466 == main_~s__state~0#1); 3481#L41 assume 8512 == main_~s__state~0#1; 3450#main_switch_1_8512#1 [2024-11-23 02:18:22,844 INFO L747 eck$LassoCheckResult]: Loop: 3450#main_switch_1_8512#1 havoc main_#t~nondet5#1;main_~tmp___1~0#1 := main_#t~nondet5#1; 3451#L81 assume 0 != main_~tmp___1~0#1;main_~s__state~0#1 := 8466; 3464#$Ultimate##5 assume !false; 3501#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 3499#L36 assume 8466 == main_~s__state~0#1; 3458#$Ultimate##17 assume !(0 == main_~blastFlag~0#1); 3459#L69-1 assume !(0 != main_~s__hit~0#1);main_~s__state~0#1 := 8512; 3475#$Ultimate##5 assume !false; 3498#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 3497#L36 assume !(8466 == main_~s__state~0#1); 3480#L41 assume 8512 == main_~s__state~0#1; 3450#main_switch_1_8512#1 [2024-11-23 02:18:22,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:18:22,844 INFO L85 PathProgramCache]: Analyzing trace with hash 21626939, now seen corresponding path program 1 times [2024-11-23 02:18:22,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:18:22,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424193572] [2024-11-23 02:18:22,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:18:22,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:18:22,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:18:22,848 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 02:18:22,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:18:22,852 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 02:18:22,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:18:22,852 INFO L85 PathProgramCache]: Analyzing trace with hash 1294878776, now seen corresponding path program 1 times [2024-11-23 02:18:22,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:18:22,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004549890] [2024-11-23 02:18:22,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:18:22,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:18:22,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:18:22,856 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 02:18:22,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:18:22,859 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 02:18:22,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:18:22,861 INFO L85 PathProgramCache]: Analyzing trace with hash 937672638, now seen corresponding path program 1 times [2024-11-23 02:18:22,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:18:22,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028462465] [2024-11-23 02:18:22,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:18:22,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:18:22,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:18:22,867 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 02:18:22,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:18:22,872 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 02:18:23,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:18:23,056 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 02:18:23,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:18:23,116 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.11 02:18:23 BoogieIcfgContainer [2024-11-23 02:18:23,117 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-23 02:18:23,118 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-23 02:18:23,118 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-23 02:18:23,118 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-23 02:18:23,119 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:18:18" (3/4) ... [2024-11-23 02:18:23,123 INFO L139 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-23 02:18:23,187 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-23 02:18:23,187 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-23 02:18:23,187 INFO L158 Benchmark]: Toolchain (without parser) took 4885.98ms. Allocated memory was 184.5MB in the beginning and 293.6MB in the end (delta: 109.1MB). Free memory was 129.6MB in the beginning and 171.7MB in the end (delta: -42.1MB). Peak memory consumption was 69.1MB. Max. memory is 16.1GB. [2024-11-23 02:18:23,188 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 184.5MB. Free memory is still 150.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 02:18:23,191 INFO L158 Benchmark]: CACSL2BoogieTranslator took 181.80ms. Allocated memory is still 184.5MB. Free memory was 129.2MB in the beginning and 116.6MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-23 02:18:23,191 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.49ms. Allocated memory is still 184.5MB. Free memory was 116.6MB in the beginning and 115.1MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 02:18:23,192 INFO L158 Benchmark]: Boogie Preprocessor took 25.15ms. Allocated memory is still 184.5MB. Free memory was 115.1MB in the beginning and 113.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-23 02:18:23,192 INFO L158 Benchmark]: RCFGBuilder took 241.37ms. Allocated memory is still 184.5MB. Free memory was 113.4MB in the beginning and 102.0MB in the end (delta: 11.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-23 02:18:23,192 INFO L158 Benchmark]: BuchiAutomizer took 4341.00ms. Allocated memory was 184.5MB in the beginning and 293.6MB in the end (delta: 109.1MB). Free memory was 102.0MB in the beginning and 173.8MB in the end (delta: -71.8MB). Peak memory consumption was 37.6MB. Max. memory is 16.1GB. [2024-11-23 02:18:23,192 INFO L158 Benchmark]: Witness Printer took 69.12ms. Allocated memory is still 293.6MB. Free memory was 173.8MB in the beginning and 171.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-23 02:18:23,193 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 184.5MB. Free memory is still 150.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 181.80ms. Allocated memory is still 184.5MB. Free memory was 129.2MB in the beginning and 116.6MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 22.49ms. Allocated memory is still 184.5MB. Free memory was 116.6MB in the beginning and 115.1MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 25.15ms. Allocated memory is still 184.5MB. Free memory was 115.1MB in the beginning and 113.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 241.37ms. Allocated memory is still 184.5MB. Free memory was 113.4MB in the beginning and 102.0MB in the end (delta: 11.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 4341.00ms. Allocated memory was 184.5MB in the beginning and 293.6MB in the end (delta: 109.1MB). Free memory was 102.0MB in the beginning and 173.8MB in the end (delta: -71.8MB). Peak memory consumption was 37.6MB. Max. memory is 16.1GB. * Witness Printer took 69.12ms. Allocated memory is still 293.6MB. Free memory was 173.8MB in the beginning and 171.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 13 terminating modules (8 trivial, 5 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) + 8489) 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. One deterministic module has affine ranking function s__state and consists of 4 locations. 8 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 62 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.2s and 10 iterations. TraceHistogramMax:2. Analysis of lassos took 3.0s. Construction of modules took 0.2s. Büchi inclusion checks took 0.7s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 13. Automata minimization 0.1s AutomataMinimizationTime, 13 MinimizatonAttempts, 136 StatesRemovedByMinimization, 8 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 [5, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 202 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 197 mSDsluCounter, 539 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 199 mSDsCounter, 39 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 308 IncrementalHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 39 mSolverCounterUnsat, 340 mSDtfsCounter, 308 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI4 SFLT1 conc0 concLT4 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax100 hnf100 lsp65 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq192 hnf89 smp100 dnf145 smp81 tf114 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 32ms VariablesStem: 0 VariablesLoop: 1 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 0 MotzkinApplications: 4 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 79]: 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: 79]: 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! [2024-11-23 02:18:23,213 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2024-11-23 02:18:23,412 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2024-11-23 02:18:23,613 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)