./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 c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/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-?-c7c6ca5-m [2024-11-09 15:32:17,519 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 15:32:17,582 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-09 15:32:17,588 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 15:32:17,590 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 15:32:17,617 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 15:32:17,618 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 15:32:17,618 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 15:32:17,619 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 15:32:17,619 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 15:32:17,620 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 15:32:17,620 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 15:32:17,620 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 15:32:17,621 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-09 15:32:17,621 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-09 15:32:17,621 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-09 15:32:17,622 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-09 15:32:17,622 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-09 15:32:17,622 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-09 15:32:17,623 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 15:32:17,623 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-09 15:32:17,624 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 15:32:17,624 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 15:32:17,624 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 15:32:17,625 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 15:32:17,625 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-09 15:32:17,625 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-09 15:32:17,625 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-09 15:32:17,626 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 15:32:17,626 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 15:32:17,626 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 15:32:17,627 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 15:32:17,627 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-09 15:32:17,627 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 15:32:17,627 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 15:32:17,628 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 15:32:17,628 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 15:32:17,628 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 15:32:17,629 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-09 15:32:17,629 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 153b6d90c91de27e09ed3c918b0b1be779b258e790f6fc392e7d5f390719c2db [2024-11-09 15:32:17,870 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 15:32:17,907 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 15:32:17,910 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 15:32:17,912 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 15:32:17,913 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 15:32:17,914 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/openssl-simplified/s3_srvr_1b.cil.c [2024-11-09 15:32:19,307 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 15:32:19,534 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 15:32:19,535 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/openssl-simplified/s3_srvr_1b.cil.c [2024-11-09 15:32:19,547 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ebb3c2246/d5e1c4c0e25240b696d0558b9035a99a/FLAG2fc569282 [2024-11-09 15:32:19,559 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ebb3c2246/d5e1c4c0e25240b696d0558b9035a99a [2024-11-09 15:32:19,562 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 15:32:19,563 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 15:32:19,564 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 15:32:19,564 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 15:32:19,571 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 15:32:19,572 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:32:19" (1/1) ... [2024-11-09 15:32:19,572 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d33973d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:32:19, skipping insertion in model container [2024-11-09 15:32:19,573 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:32:19" (1/1) ... [2024-11-09 15:32:19,598 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 15:32:19,783 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 15:32:19,794 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 15:32:19,811 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 15:32:19,825 INFO L204 MainTranslator]: Completed translation [2024-11-09 15:32:19,826 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:32:19 WrapperNode [2024-11-09 15:32:19,826 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 15:32:19,827 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 15:32:19,827 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 15:32:19,827 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 15:32:19,833 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:32:19" (1/1) ... [2024-11-09 15:32:19,839 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:32:19" (1/1) ... [2024-11-09 15:32:19,853 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 74 [2024-11-09 15:32:19,853 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 15:32:19,854 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 15:32:19,854 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 15:32:19,854 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 15:32:19,861 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:32:19" (1/1) ... [2024-11-09 15:32:19,861 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:32:19" (1/1) ... [2024-11-09 15:32:19,862 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:32:19" (1/1) ... [2024-11-09 15:32:19,873 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]. [2024-11-09 15:32:19,873 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:32:19" (1/1) ... [2024-11-09 15:32:19,873 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:32:19" (1/1) ... [2024-11-09 15:32:19,876 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:32:19" (1/1) ... [2024-11-09 15:32:19,881 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:32:19" (1/1) ... [2024-11-09 15:32:19,881 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:32:19" (1/1) ... [2024-11-09 15:32:19,882 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:32:19" (1/1) ... [2024-11-09 15:32:19,884 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 15:32:19,884 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 15:32:19,884 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 15:32:19,885 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 15:32:19,889 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:32:19" (1/1) ... [2024-11-09 15:32:19,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:32:19,905 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:32:19,925 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) [2024-11-09 15:32:19,929 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 [2024-11-09 15:32:19,979 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 15:32:19,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 15:32:19,979 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 15:32:19,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 15:32:20,043 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 15:32:20,046 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 15:32:20,224 INFO L? ?]: Removed 15 outVars from TransFormulas that were not future-live. [2024-11-09 15:32:20,226 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 15:32:20,239 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 15:32:20,240 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 15:32:20,240 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:32:20 BoogieIcfgContainer [2024-11-09 15:32:20,241 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 15:32:20,242 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-09 15:32:20,242 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-09 15:32:20,246 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-09 15:32:20,247 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-09 15:32:20,248 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 09.11 03:32:19" (1/3) ... [2024-11-09 15:32:20,249 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@c5071d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.11 03:32:20, skipping insertion in model container [2024-11-09 15:32:20,249 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-09 15:32:20,250 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:32:19" (2/3) ... [2024-11-09 15:32:20,250 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@c5071d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.11 03:32:20, skipping insertion in model container [2024-11-09 15:32:20,250 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-09 15:32:20,251 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:32:20" (3/3) ... [2024-11-09 15:32:20,252 INFO L332 chiAutomizerObserver]: Analyzing ICFG s3_srvr_1b.cil.c [2024-11-09 15:32:20,327 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-09 15:32:20,328 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-09 15:32:20,328 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-09 15:32:20,328 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-09 15:32:20,328 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-09 15:32:20,328 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-09 15:32:20,329 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-09 15:32:20,329 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-09 15:32:20,333 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) [2024-11-09 15:32:20,350 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 16 [2024-11-09 15:32:20,352 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-09 15:32:20,352 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-09 15:32:20,358 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-09 15:32:20,358 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2024-11-09 15:32:20,359 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-09 15:32:20,359 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) [2024-11-09 15:32:20,363 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 16 [2024-11-09 15:32:20,363 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-09 15:32:20,363 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-09 15:32:20,363 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-09 15:32:20,364 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2024-11-09 15:32:20,371 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 [2024-11-09 15:32:20,371 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 [2024-11-09 15:32:20,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:32:20,381 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-11-09 15:32:20,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:32:20,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398747438] [2024-11-09 15:32:20,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:32:20,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:32:20,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:32:20,485 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 15:32:20,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:32:20,515 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 15:32:20,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:32:20,518 INFO L85 PathProgramCache]: Analyzing trace with hash 39284085, now seen corresponding path program 1 times [2024-11-09 15:32:20,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:32:20,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628616024] [2024-11-09 15:32:20,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:32:20,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:32:20,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:32:20,533 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 15:32:20,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:32:20,539 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 15:32:20,541 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:32:20,545 INFO L85 PathProgramCache]: Analyzing trace with hash 1810723571, now seen corresponding path program 1 times [2024-11-09 15:32:20,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:32:20,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514901202] [2024-11-09 15:32:20,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:32:20,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:32:20,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:32:20,559 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 15:32:20,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:32:20,572 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 15:32:20,702 INFO L204 LassoAnalysis]: Preferences: [2024-11-09 15:32:20,703 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-09 15:32:20,703 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-09 15:32:20,703 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-09 15:32:20,704 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-09 15:32:20,704 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:32:20,704 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-09 15:32:20,704 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-09 15:32:20,704 INFO L132 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration1_Loop [2024-11-09 15:32:20,704 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-09 15:32:20,705 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-09 15:32:20,721 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:32:20,735 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:32:20,746 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:32:20,813 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-09 15:32:20,813 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-09 15:32:20,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:32:20,816 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:32:20,818 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) [2024-11-09 15:32:20,819 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 [2024-11-09 15:32:20,821 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-09 15:32:20,821 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 15:32:20,840 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-09 15:32:20,840 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: [] [2024-11-09 15:32:20,856 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 [2024-11-09 15:32:20,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:32:20,856 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:32:20,880 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) [2024-11-09 15:32:20,883 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 [2024-11-09 15:32:20,884 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-09 15:32:20,885 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 15:32:20,908 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 [2024-11-09 15:32:20,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:32:20,908 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:32:20,909 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) [2024-11-09 15:32:20,910 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 [2024-11-09 15:32:20,911 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-09 15:32:20,911 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 15:32:20,933 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-09 15:32:20,948 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 [2024-11-09 15:32:20,949 INFO L204 LassoAnalysis]: Preferences: [2024-11-09 15:32:20,949 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-09 15:32:20,949 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-09 15:32:20,949 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-09 15:32:20,949 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-09 15:32:20,949 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:32:20,949 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-09 15:32:20,949 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-09 15:32:20,949 INFO L132 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration1_Loop [2024-11-09 15:32:20,949 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-09 15:32:20,950 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-09 15:32:20,951 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:32:20,962 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:32:20,969 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:32:21,036 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-09 15:32:21,041 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-09 15:32:21,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:32:21,043 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:32:21,044 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) [2024-11-09 15:32:21,057 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 [2024-11-09 15:32:21,062 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-09 15:32:21,073 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-09 15:32:21,073 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-09 15:32:21,074 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-09 15:32:21,074 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-09 15:32:21,074 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-09 15:32:21,076 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-09 15:32:21,076 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-09 15:32:21,078 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-09 15:32:21,089 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 [2024-11-09 15:32:21,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:32:21,089 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:32:21,090 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) [2024-11-09 15:32:21,091 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 [2024-11-09 15:32:21,093 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 [2024-11-09 15:32:21,106 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-09 15:32:21,107 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-09 15:32:21,107 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-09 15:32:21,107 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-09 15:32:21,107 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-09 15:32:21,108 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-09 15:32:21,108 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-09 15:32:21,111 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-09 15:32:21,114 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-09 15:32:21,114 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-09 15:32:21,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:32:21,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:32:21,144 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) [2024-11-09 15:32:21,147 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 [2024-11-09 15:32:21,148 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-09 15:32:21,149 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-09 15:32:21,149 INFO L474 LassoAnalysis]: Proved termination. [2024-11-09 15:32:21,149 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 [] [2024-11-09 15:32:21,164 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 [2024-11-09 15:32:21,168 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-09 15:32:21,198 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:32:21,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:32:21,222 INFO L255 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 15:32:21,223 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:32:21,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:32:21,240 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 15:32:21,241 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:32:21,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:32:21,333 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 [2024-11-09 15:32:21,335 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) [2024-11-09 15:32:21,399 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. [2024-11-09 15:32:21,401 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 [2024-11-09 15:32:21,405 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) [2024-11-09 15:32:21,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 41 transitions. [2024-11-09 15:32:21,407 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 41 transitions. Stem has 2 letters. Loop has 5 letters. [2024-11-09 15:32:21,408 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-09 15:32:21,408 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 41 transitions. Stem has 7 letters. Loop has 5 letters. [2024-11-09 15:32:21,408 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-09 15:32:21,408 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 41 transitions. Stem has 2 letters. Loop has 10 letters. [2024-11-09 15:32:21,409 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-09 15:32:21,409 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 51 states and 82 transitions. [2024-11-09 15:32:21,412 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 16 [2024-11-09 15:32:21,415 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 51 states to 38 states and 59 transitions. [2024-11-09 15:32:21,416 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2024-11-09 15:32:21,416 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2024-11-09 15:32:21,417 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 59 transitions. [2024-11-09 15:32:21,417 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-09 15:32:21,417 INFO L218 hiAutomatonCegarLoop]: Abstraction has 38 states and 59 transitions. [2024-11-09 15:32:21,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states and 59 transitions. [2024-11-09 15:32:21,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 36. [2024-11-09 15:32:21,446 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) [2024-11-09 15:32:21,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 57 transitions. [2024-11-09 15:32:21,450 INFO L240 hiAutomatonCegarLoop]: Abstraction has 36 states and 57 transitions. [2024-11-09 15:32:21,450 INFO L425 stractBuchiCegarLoop]: Abstraction has 36 states and 57 transitions. [2024-11-09 15:32:21,450 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-09 15:32:21,450 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 36 states and 57 transitions. [2024-11-09 15:32:21,452 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 16 [2024-11-09 15:32:21,452 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-09 15:32:21,452 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-09 15:32:21,452 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-09 15:32:21,453 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2024-11-09 15:32:21,453 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#$Ultimate##5 assume !false; 120#L30 [2024-11-09 15:32:21,453 INFO L747 eck$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 [2024-11-09 15:32:21,453 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:32:21,453 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2024-11-09 15:32:21,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:32:21,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909683556] [2024-11-09 15:32:21,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:32:21,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:32:21,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:32:21,464 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 15:32:21,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:32:21,475 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 15:32:21,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:32:21,476 INFO L85 PathProgramCache]: Analyzing trace with hash 44013377, now seen corresponding path program 1 times [2024-11-09 15:32:21,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:32:21,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564324696] [2024-11-09 15:32:21,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:32:21,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:32:21,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:32:21,486 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 15:32:21,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:32:21,490 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 15:32:21,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:32:21,495 INFO L85 PathProgramCache]: Analyzing trace with hash 297857786, now seen corresponding path program 1 times [2024-11-09 15:32:21,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:32:21,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836750835] [2024-11-09 15:32:21,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:32:21,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:32:21,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:32:21,573 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:32:21,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:32:21,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836750835] [2024-11-09 15:32:21,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836750835] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:32:21,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:32:21,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 15:32:21,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845792856] [2024-11-09 15:32:21,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:32:21,629 INFO L204 LassoAnalysis]: Preferences: [2024-11-09 15:32:21,629 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-09 15:32:21,629 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-09 15:32:21,629 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-09 15:32:21,629 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-09 15:32:21,630 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:32:21,630 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-09 15:32:21,630 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-09 15:32:21,630 INFO L132 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration2_Loop [2024-11-09 15:32:21,630 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-09 15:32:21,630 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-09 15:32:21,631 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:32:21,638 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:32:21,643 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:32:21,701 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-09 15:32:21,702 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-09 15:32:21,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:32:21,702 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:32:21,704 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) [2024-11-09 15:32:21,706 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 [2024-11-09 15:32:21,707 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-09 15:32:21,707 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 15:32:21,732 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-09 15:32:21,732 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: [] [2024-11-09 15:32:21,747 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 [2024-11-09 15:32:21,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:32:21,747 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:32:21,749 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) [2024-11-09 15:32:21,751 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 [2024-11-09 15:32:21,753 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-09 15:32:21,753 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 15:32:21,774 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-09 15:32:21,774 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: [] [2024-11-09 15:32:21,790 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 [2024-11-09 15:32:21,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:32:21,791 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:32:21,793 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) [2024-11-09 15:32:21,794 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 [2024-11-09 15:32:21,796 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-09 15:32:21,796 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 15:32:21,827 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 [2024-11-09 15:32:21,828 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:32:21,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:32:21,831 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) [2024-11-09 15:32:21,831 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 [2024-11-09 15:32:21,833 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-09 15:32:21,833 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 15:32:21,849 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-09 15:32:21,865 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2024-11-09 15:32:21,865 INFO L204 LassoAnalysis]: Preferences: [2024-11-09 15:32:21,866 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-09 15:32:21,866 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-09 15:32:21,866 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-09 15:32:21,866 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-09 15:32:21,866 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:32:21,866 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-09 15:32:21,866 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-09 15:32:21,866 INFO L132 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration2_Loop [2024-11-09 15:32:21,866 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-09 15:32:21,866 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-09 15:32:21,867 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:32:21,876 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:32:21,879 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:32:21,930 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-09 15:32:21,931 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-09 15:32:21,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:32:21,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:32:21,933 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) [2024-11-09 15:32:21,934 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 [2024-11-09 15:32:21,936 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 [2024-11-09 15:32:21,948 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-09 15:32:21,948 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-09 15:32:21,949 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-09 15:32:21,949 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-11-09 15:32:21,949 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-09 15:32:21,951 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2024-11-09 15:32:21,951 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-09 15:32:21,955 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-09 15:32:21,970 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 [2024-11-09 15:32:21,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:32:21,971 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:32:21,973 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) [2024-11-09 15:32:21,975 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 [2024-11-09 15:32:21,975 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 [2024-11-09 15:32:21,987 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-09 15:32:21,988 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-09 15:32:21,988 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-09 15:32:21,988 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-09 15:32:21,988 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-09 15:32:21,989 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-09 15:32:21,989 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-09 15:32:21,992 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-09 15:32:22,006 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2024-11-09 15:32:22,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:32:22,007 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:32:22,010 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) [2024-11-09 15:32:22,012 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 [2024-11-09 15:32:22,013 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 [2024-11-09 15:32:22,026 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-09 15:32:22,027 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-09 15:32:22,027 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-09 15:32:22,027 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-09 15:32:22,027 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-09 15:32:22,028 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-09 15:32:22,028 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-09 15:32:22,031 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-09 15:32:22,034 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-09 15:32:22,034 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-09 15:32:22,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:32:22,035 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:32:22,036 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) [2024-11-09 15:32:22,038 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 [2024-11-09 15:32:22,039 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-09 15:32:22,039 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-09 15:32:22,039 INFO L474 LassoAnalysis]: Proved termination. [2024-11-09 15:32:22,039 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 [] [2024-11-09 15:32:22,053 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 [2024-11-09 15:32:22,055 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-09 15:32:22,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:32:22,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:32:22,083 INFO L255 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 15:32:22,084 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:32:22,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:32:22,099 INFO L255 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 15:32:22,099 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:32:22,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:32:22,134 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 [2024-11-09 15:32:22,134 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) [2024-11-09 15:32:22,174 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. [2024-11-09 15:32:22,175 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 [2024-11-09 15:32:22,176 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) [2024-11-09 15:32:22,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2024-11-09 15:32:22,176 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 3 letters. Loop has 5 letters. [2024-11-09 15:32:22,176 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-09 15:32:22,176 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 8 letters. Loop has 5 letters. [2024-11-09 15:32:22,178 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-09 15:32:22,178 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 3 letters. Loop has 10 letters. [2024-11-09 15:32:22,179 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-09 15:32:22,179 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 72 states and 109 transitions. [2024-11-09 15:32:22,181 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 16 [2024-11-09 15:32:22,182 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 72 states to 61 states and 97 transitions. [2024-11-09 15:32:22,182 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 25 [2024-11-09 15:32:22,183 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 27 [2024-11-09 15:32:22,183 INFO L73 IsDeterministic]: Start isDeterministic. Operand 61 states and 97 transitions. [2024-11-09 15:32:22,183 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-09 15:32:22,183 INFO L218 hiAutomatonCegarLoop]: Abstraction has 61 states and 97 transitions. [2024-11-09 15:32:22,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states and 97 transitions. [2024-11-09 15:32:22,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 54. [2024-11-09 15:32:22,186 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) [2024-11-09 15:32:22,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 86 transitions. [2024-11-09 15:32:22,187 INFO L240 hiAutomatonCegarLoop]: Abstraction has 54 states and 86 transitions. [2024-11-09 15:32:22,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:32:22,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 15:32:22,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 15:32:22,191 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) [2024-11-09 15:32:22,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 15:32:22,224 INFO L93 Difference]: Finished difference Result 90 states and 128 transitions. [2024-11-09 15:32:22,224 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 90 states and 128 transitions. [2024-11-09 15:32:22,225 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 30 [2024-11-09 15:32:22,226 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 90 states to 87 states and 125 transitions. [2024-11-09 15:32:22,226 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 38 [2024-11-09 15:32:22,227 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 38 [2024-11-09 15:32:22,227 INFO L73 IsDeterministic]: Start isDeterministic. Operand 87 states and 125 transitions. [2024-11-09 15:32:22,227 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-09 15:32:22,227 INFO L218 hiAutomatonCegarLoop]: Abstraction has 87 states and 125 transitions. [2024-11-09 15:32:22,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states and 125 transitions. [2024-11-09 15:32:22,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 85. [2024-11-09 15:32:22,236 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) [2024-11-09 15:32:22,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 123 transitions. [2024-11-09 15:32:22,238 INFO L240 hiAutomatonCegarLoop]: Abstraction has 85 states and 123 transitions. [2024-11-09 15:32:22,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 15:32:22,240 INFO L425 stractBuchiCegarLoop]: Abstraction has 85 states and 123 transitions. [2024-11-09 15:32:22,240 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-09 15:32:22,240 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 85 states and 123 transitions. [2024-11-09 15:32:22,242 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 30 [2024-11-09 15:32:22,242 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-09 15:32:22,242 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-09 15:32:22,242 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-09 15:32:22,242 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2024-11-09 15:32:22,242 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#$Ultimate##5 assume !false; 421#L30 [2024-11-09 15:32:22,242 INFO L747 eck$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 [2024-11-09 15:32:22,243 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:32:22,243 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 2 times [2024-11-09 15:32:22,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:32:22,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760919984] [2024-11-09 15:32:22,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:32:22,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:32:22,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:32:22,252 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 15:32:22,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:32:22,259 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 15:32:22,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:32:22,260 INFO L85 PathProgramCache]: Analyzing trace with hash 1365729718, now seen corresponding path program 1 times [2024-11-09 15:32:22,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:32:22,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948923314] [2024-11-09 15:32:22,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:32:22,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:32:22,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:32:22,264 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 15:32:22,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:32:22,267 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 15:32:22,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:32:22,268 INFO L85 PathProgramCache]: Analyzing trace with hash 644971805, now seen corresponding path program 1 times [2024-11-09 15:32:22,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:32:22,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065868105] [2024-11-09 15:32:22,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:32:22,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:32:22,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:32:22,306 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:32:22,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:32:22,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065868105] [2024-11-09 15:32:22,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065868105] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:32:22,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:32:22,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 15:32:22,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411316776] [2024-11-09 15:32:22,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:32:22,344 INFO L204 LassoAnalysis]: Preferences: [2024-11-09 15:32:22,344 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-09 15:32:22,344 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-09 15:32:22,344 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-09 15:32:22,344 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-09 15:32:22,344 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:32:22,344 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-09 15:32:22,345 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-09 15:32:22,345 INFO L132 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration3_Loop [2024-11-09 15:32:22,345 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-09 15:32:22,345 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-09 15:32:22,346 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:32:22,349 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:32:22,351 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:32:22,381 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-09 15:32:22,382 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-09 15:32:22,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:32:22,383 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:32:22,384 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) [2024-11-09 15:32:22,386 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 [2024-11-09 15:32:22,387 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-09 15:32:22,387 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 15:32:22,402 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-09 15:32:22,402 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: [] [2024-11-09 15:32:22,412 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2024-11-09 15:32:22,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:32:22,413 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:32:22,414 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) [2024-11-09 15:32:22,415 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 [2024-11-09 15:32:22,416 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-09 15:32:22,417 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 15:32:22,440 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-09 15:32:22,440 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: [] [2024-11-09 15:32:22,455 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 [2024-11-09 15:32:22,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:32:22,456 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:32:22,457 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) [2024-11-09 15:32:22,459 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 [2024-11-09 15:32:22,460 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-09 15:32:22,460 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 15:32:22,489 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2024-11-09 15:32:22,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:32:22,490 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:32:22,492 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) [2024-11-09 15:32:22,492 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 [2024-11-09 15:32:22,493 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-09 15:32:22,493 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 15:32:22,506 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-09 15:32:22,520 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2024-11-09 15:32:22,521 INFO L204 LassoAnalysis]: Preferences: [2024-11-09 15:32:22,521 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-09 15:32:22,521 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-09 15:32:22,521 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-09 15:32:22,521 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-09 15:32:22,521 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:32:22,521 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-09 15:32:22,521 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-09 15:32:22,521 INFO L132 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration3_Loop [2024-11-09 15:32:22,521 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-09 15:32:22,521 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-09 15:32:22,522 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:32:22,525 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:32:22,531 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:32:22,555 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-09 15:32:22,555 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-09 15:32:22,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:32:22,555 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:32:22,557 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) [2024-11-09 15:32:22,559 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 [2024-11-09 15:32:22,560 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 [2024-11-09 15:32:22,571 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-09 15:32:22,572 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-09 15:32:22,572 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-09 15:32:22,572 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-09 15:32:22,572 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-09 15:32:22,573 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-09 15:32:22,573 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-09 15:32:22,574 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-09 15:32:22,584 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2024-11-09 15:32:22,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:32:22,585 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:32:22,586 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) [2024-11-09 15:32:22,587 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 [2024-11-09 15:32:22,588 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 [2024-11-09 15:32:22,599 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-09 15:32:22,599 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-09 15:32:22,599 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-09 15:32:22,599 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-09 15:32:22,599 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-09 15:32:22,600 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-09 15:32:22,600 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-09 15:32:22,602 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-09 15:32:22,604 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-09 15:32:22,605 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-09 15:32:22,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:32:22,605 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:32:22,606 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) [2024-11-09 15:32:22,607 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 [2024-11-09 15:32:22,608 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-09 15:32:22,608 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-09 15:32:22,608 INFO L474 LassoAnalysis]: Proved termination. [2024-11-09 15:32:22,608 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 [] [2024-11-09 15:32:22,618 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 [2024-11-09 15:32:22,619 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-09 15:32:22,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:32:22,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:32:22,639 INFO L255 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 15:32:22,639 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:32:22,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:32:22,648 INFO L255 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 15:32:22,649 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:32:22,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:32:22,678 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 [2024-11-09 15:32:22,678 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) [2024-11-09 15:32:22,737 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 [2024-11-09 15:32:22,767 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 [2024-11-09 15:32:22,788 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 [2024-11-09 15:32:22,808 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. [2024-11-09 15:32:22,808 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 [2024-11-09 15:32:22,809 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) [2024-11-09 15:32:22,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 46 transitions. [2024-11-09 15:32:22,810 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 46 transitions. Stem has 3 letters. Loop has 6 letters. [2024-11-09 15:32:22,810 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-09 15:32:22,810 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 46 transitions. Stem has 9 letters. Loop has 6 letters. [2024-11-09 15:32:22,810 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-09 15:32:22,810 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 46 transitions. Stem has 3 letters. Loop has 12 letters. [2024-11-09 15:32:22,811 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-09 15:32:22,811 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 255 states and 373 transitions. [2024-11-09 15:32:22,814 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 52 [2024-11-09 15:32:22,817 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 255 states to 254 states and 372 transitions. [2024-11-09 15:32:22,817 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 69 [2024-11-09 15:32:22,817 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 72 [2024-11-09 15:32:22,817 INFO L73 IsDeterministic]: Start isDeterministic. Operand 254 states and 372 transitions. [2024-11-09 15:32:22,817 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-09 15:32:22,817 INFO L218 hiAutomatonCegarLoop]: Abstraction has 254 states and 372 transitions. [2024-11-09 15:32:22,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states and 372 transitions. [2024-11-09 15:32:22,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 199. [2024-11-09 15:32:22,829 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) [2024-11-09 15:32:22,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 289 transitions. [2024-11-09 15:32:22,833 INFO L240 hiAutomatonCegarLoop]: Abstraction has 199 states and 289 transitions. [2024-11-09 15:32:22,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:32:22,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 15:32:22,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 15:32:22,834 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) [2024-11-09 15:32:22,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 15:32:22,854 INFO L93 Difference]: Finished difference Result 66 states and 95 transitions. [2024-11-09 15:32:22,854 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 66 states and 95 transitions. [2024-11-09 15:32:22,855 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 19 [2024-11-09 15:32:22,856 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 66 states to 61 states and 90 transitions. [2024-11-09 15:32:22,856 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 25 [2024-11-09 15:32:22,856 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25 [2024-11-09 15:32:22,856 INFO L73 IsDeterministic]: Start isDeterministic. Operand 61 states and 90 transitions. [2024-11-09 15:32:22,857 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-09 15:32:22,857 INFO L218 hiAutomatonCegarLoop]: Abstraction has 61 states and 90 transitions. [2024-11-09 15:32:22,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states and 90 transitions. [2024-11-09 15:32:22,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2024-11-09 15:32:22,863 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) [2024-11-09 15:32:22,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 90 transitions. [2024-11-09 15:32:22,864 INFO L240 hiAutomatonCegarLoop]: Abstraction has 61 states and 90 transitions. [2024-11-09 15:32:22,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 15:32:22,867 INFO L425 stractBuchiCegarLoop]: Abstraction has 61 states and 90 transitions. [2024-11-09 15:32:22,868 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-09 15:32:22,868 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 61 states and 90 transitions. [2024-11-09 15:32:22,868 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 19 [2024-11-09 15:32:22,868 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-09 15:32:22,868 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-09 15:32:22,869 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1] [2024-11-09 15:32:22,869 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2024-11-09 15:32:22,869 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 [2024-11-09 15:32:22,869 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 [2024-11-09 15:32:22,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:32:22,870 INFO L85 PathProgramCache]: Analyzing trace with hash -1523382593, now seen corresponding path program 1 times [2024-11-09 15:32:22,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:32:22,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195956069] [2024-11-09 15:32:22,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:32:22,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:32:22,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:32:22,879 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 15:32:22,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:32:22,887 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 15:32:22,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:32:22,888 INFO L85 PathProgramCache]: Analyzing trace with hash 1623382260, now seen corresponding path program 1 times [2024-11-09 15:32:22,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:32:22,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849251179] [2024-11-09 15:32:22,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:32:22,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:32:22,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:32:22,892 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 15:32:22,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:32:22,895 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 15:32:22,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:32:22,895 INFO L85 PathProgramCache]: Analyzing trace with hash -1141286606, now seen corresponding path program 1 times [2024-11-09 15:32:22,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:32:22,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868919064] [2024-11-09 15:32:22,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:32:22,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:32:22,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:32:22,955 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:32:22,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:32:22,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868919064] [2024-11-09 15:32:22,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868919064] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:32:22,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:32:22,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 15:32:22,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110557561] [2024-11-09 15:32:22,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:32:22,981 INFO L204 LassoAnalysis]: Preferences: [2024-11-09 15:32:22,982 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-09 15:32:22,982 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-09 15:32:22,982 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-09 15:32:22,982 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-09 15:32:22,982 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:32:22,982 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-09 15:32:22,982 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-09 15:32:22,982 INFO L132 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration4_Loop [2024-11-09 15:32:22,983 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-09 15:32:22,983 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-09 15:32:22,983 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:32:22,988 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:32:23,008 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-09 15:32:23,008 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-09 15:32:23,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:32:23,009 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:32:23,010 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) [2024-11-09 15:32:23,012 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 [2024-11-09 15:32:23,013 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-09 15:32:23,013 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 15:32:23,042 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2024-11-09 15:32:23,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:32:23,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:32:23,043 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) [2024-11-09 15:32:23,044 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 [2024-11-09 15:32:23,045 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-09 15:32:23,045 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 15:32:23,060 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-09 15:32:23,074 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 [2024-11-09 15:32:23,075 INFO L204 LassoAnalysis]: Preferences: [2024-11-09 15:32:23,075 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-09 15:32:23,075 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-09 15:32:23,075 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-09 15:32:23,075 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-09 15:32:23,075 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:32:23,076 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-09 15:32:23,076 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-09 15:32:23,076 INFO L132 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration4_Loop [2024-11-09 15:32:23,076 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-09 15:32:23,076 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-09 15:32:23,077 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:32:23,084 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:32:23,108 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-09 15:32:23,109 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-09 15:32:23,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:32:23,109 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:32:23,111 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) [2024-11-09 15:32:23,112 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 [2024-11-09 15:32:23,113 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 [2024-11-09 15:32:23,125 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-09 15:32:23,125 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-09 15:32:23,126 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-09 15:32:23,126 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-09 15:32:23,126 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-09 15:32:23,127 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-09 15:32:23,127 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-09 15:32:23,129 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-09 15:32:23,131 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-09 15:32:23,131 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-09 15:32:23,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:32:23,132 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:32:23,133 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) [2024-11-09 15:32:23,135 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 [2024-11-09 15:32:23,135 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-09 15:32:23,135 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-09 15:32:23,135 INFO L474 LassoAnalysis]: Proved termination. [2024-11-09 15:32:23,135 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 [] [2024-11-09 15:32:23,150 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 [2024-11-09 15:32:23,151 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-09 15:32:23,163 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:32:23,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:32:23,174 INFO L255 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 15:32:23,174 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:32:23,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:32:23,198 INFO L255 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 15:32:23,199 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:32:23,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:32:23,234 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 [2024-11-09 15:32:23,234 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) [2024-11-09 15:32:23,306 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. [2024-11-09 15:32:23,307 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 [2024-11-09 15:32:23,307 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) [2024-11-09 15:32:23,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 47 transitions. [2024-11-09 15:32:23,308 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 47 transitions. Stem has 10 letters. Loop has 6 letters. [2024-11-09 15:32:23,308 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-09 15:32:23,308 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 47 transitions. Stem has 16 letters. Loop has 6 letters. [2024-11-09 15:32:23,308 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-09 15:32:23,308 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 47 transitions. Stem has 10 letters. Loop has 12 letters. [2024-11-09 15:32:23,308 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-09 15:32:23,309 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 167 states and 244 transitions. [2024-11-09 15:32:23,310 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 30 [2024-11-09 15:32:23,311 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 167 states to 147 states and 216 transitions. [2024-11-09 15:32:23,311 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 43 [2024-11-09 15:32:23,312 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 46 [2024-11-09 15:32:23,312 INFO L73 IsDeterministic]: Start isDeterministic. Operand 147 states and 216 transitions. [2024-11-09 15:32:23,312 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-09 15:32:23,312 INFO L218 hiAutomatonCegarLoop]: Abstraction has 147 states and 216 transitions. [2024-11-09 15:32:23,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states and 216 transitions. [2024-11-09 15:32:23,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 141. [2024-11-09 15:32:23,318 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) [2024-11-09 15:32:23,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 207 transitions. [2024-11-09 15:32:23,319 INFO L240 hiAutomatonCegarLoop]: Abstraction has 141 states and 207 transitions. [2024-11-09 15:32:23,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:32:23,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 15:32:23,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 15:32:23,320 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) [2024-11-09 15:32:23,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 15:32:23,345 INFO L93 Difference]: Finished difference Result 180 states and 247 transitions. [2024-11-09 15:32:23,347 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 180 states and 247 transitions. [2024-11-09 15:32:23,349 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 36 [2024-11-09 15:32:23,350 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 180 states to 170 states and 235 transitions. [2024-11-09 15:32:23,350 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 55 [2024-11-09 15:32:23,350 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 59 [2024-11-09 15:32:23,350 INFO L73 IsDeterministic]: Start isDeterministic. Operand 170 states and 235 transitions. [2024-11-09 15:32:23,350 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-09 15:32:23,350 INFO L218 hiAutomatonCegarLoop]: Abstraction has 170 states and 235 transitions. [2024-11-09 15:32:23,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states and 235 transitions. [2024-11-09 15:32:23,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 146. [2024-11-09 15:32:23,360 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) [2024-11-09 15:32:23,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 209 transitions. [2024-11-09 15:32:23,361 INFO L240 hiAutomatonCegarLoop]: Abstraction has 146 states and 209 transitions. [2024-11-09 15:32:23,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 15:32:23,363 INFO L425 stractBuchiCegarLoop]: Abstraction has 146 states and 209 transitions. [2024-11-09 15:32:23,363 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-11-09 15:32:23,363 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 146 states and 209 transitions. [2024-11-09 15:32:23,364 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 35 [2024-11-09 15:32:23,364 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-09 15:32:23,364 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-09 15:32:23,364 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:32:23,364 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:32:23,364 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#$Ultimate##5 [2024-11-09 15:32:23,365 INFO L747 eck$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 [2024-11-09 15:32:23,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:32:23,365 INFO L85 PathProgramCache]: Analyzing trace with hash 1810723569, now seen corresponding path program 1 times [2024-11-09 15:32:23,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:32:23,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836380687] [2024-11-09 15:32:23,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:32:23,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:32:23,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:32:23,373 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 15:32:23,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:32:23,380 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 15:32:23,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:32:23,380 INFO L85 PathProgramCache]: Analyzing trace with hash -1982564596, now seen corresponding path program 1 times [2024-11-09 15:32:23,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:32:23,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585950860] [2024-11-09 15:32:23,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:32:23,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:32:23,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:32:23,403 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:32:23,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:32:23,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585950860] [2024-11-09 15:32:23,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585950860] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:32:23,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:32:23,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 15:32:23,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024714527] [2024-11-09 15:32:23,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:32:23,404 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-09 15:32:23,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:32:23,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 15:32:23,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 15:32:23,405 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) [2024-11-09 15:32:23,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 15:32:23,423 INFO L93 Difference]: Finished difference Result 194 states and 270 transitions. [2024-11-09 15:32:23,423 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 194 states and 270 transitions. [2024-11-09 15:32:23,425 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 59 [2024-11-09 15:32:23,426 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 194 states to 194 states and 270 transitions. [2024-11-09 15:32:23,426 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 70 [2024-11-09 15:32:23,426 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 70 [2024-11-09 15:32:23,426 INFO L73 IsDeterministic]: Start isDeterministic. Operand 194 states and 270 transitions. [2024-11-09 15:32:23,426 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-09 15:32:23,426 INFO L218 hiAutomatonCegarLoop]: Abstraction has 194 states and 270 transitions. [2024-11-09 15:32:23,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states and 270 transitions. [2024-11-09 15:32:23,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 194. [2024-11-09 15:32:23,431 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) [2024-11-09 15:32:23,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 270 transitions. [2024-11-09 15:32:23,432 INFO L240 hiAutomatonCegarLoop]: Abstraction has 194 states and 270 transitions. [2024-11-09 15:32:23,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 15:32:23,433 INFO L425 stractBuchiCegarLoop]: Abstraction has 194 states and 270 transitions. [2024-11-09 15:32:23,433 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-11-09 15:32:23,433 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 194 states and 270 transitions. [2024-11-09 15:32:23,434 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 59 [2024-11-09 15:32:23,434 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-09 15:32:23,434 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-09 15:32:23,435 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:32:23,435 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:32:23,435 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#$Ultimate##5 [2024-11-09 15:32:23,435 INFO L747 eck$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 [2024-11-09 15:32:23,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:32:23,435 INFO L85 PathProgramCache]: Analyzing trace with hash 1810723569, now seen corresponding path program 2 times [2024-11-09 15:32:23,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:32:23,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127448001] [2024-11-09 15:32:23,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:32:23,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:32:23,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:32:23,440 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 15:32:23,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:32:23,444 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 15:32:23,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:32:23,445 INFO L85 PathProgramCache]: Analyzing trace with hash 862619384, now seen corresponding path program 1 times [2024-11-09 15:32:23,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:32:23,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806277447] [2024-11-09 15:32:23,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:32:23,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:32:23,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:32:23,464 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:32:23,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:32:23,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806277447] [2024-11-09 15:32:23,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806277447] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:32:23,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:32:23,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 15:32:23,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295812212] [2024-11-09 15:32:23,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:32:23,465 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-09 15:32:23,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:32:23,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 15:32:23,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 15:32:23,466 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) [2024-11-09 15:32:23,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 15:32:23,488 INFO L93 Difference]: Finished difference Result 169 states and 218 transitions. [2024-11-09 15:32:23,488 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 169 states and 218 transitions. [2024-11-09 15:32:23,490 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2024-11-09 15:32:23,490 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 169 states to 117 states and 149 transitions. [2024-11-09 15:32:23,490 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 58 [2024-11-09 15:32:23,491 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 65 [2024-11-09 15:32:23,491 INFO L73 IsDeterministic]: Start isDeterministic. Operand 117 states and 149 transitions. [2024-11-09 15:32:23,491 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-09 15:32:23,491 INFO L218 hiAutomatonCegarLoop]: Abstraction has 117 states and 149 transitions. [2024-11-09 15:32:23,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states and 149 transitions. [2024-11-09 15:32:23,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 105. [2024-11-09 15:32:23,494 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) [2024-11-09 15:32:23,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 134 transitions. [2024-11-09 15:32:23,494 INFO L240 hiAutomatonCegarLoop]: Abstraction has 105 states and 134 transitions. [2024-11-09 15:32:23,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 15:32:23,496 INFO L425 stractBuchiCegarLoop]: Abstraction has 105 states and 134 transitions. [2024-11-09 15:32:23,497 INFO L332 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2024-11-09 15:32:23,497 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 105 states and 134 transitions. [2024-11-09 15:32:23,497 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2024-11-09 15:32:23,497 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-09 15:32:23,498 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-09 15:32:23,498 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:32:23,499 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:32:23,499 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#$Ultimate##5 [2024-11-09 15:32:23,499 INFO L747 eck$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 [2024-11-09 15:32:23,499 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:32:23,500 INFO L85 PathProgramCache]: Analyzing trace with hash 1810723569, now seen corresponding path program 3 times [2024-11-09 15:32:23,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:32:23,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111627543] [2024-11-09 15:32:23,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:32:23,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:32:23,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:32:23,509 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 15:32:23,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:32:23,517 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 15:32:23,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:32:23,518 INFO L85 PathProgramCache]: Analyzing trace with hash 49895967, now seen corresponding path program 1 times [2024-11-09 15:32:23,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:32:23,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279027292] [2024-11-09 15:32:23,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:32:23,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:32:23,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:32:23,549 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:32:23,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:32:23,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279027292] [2024-11-09 15:32:23,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279027292] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:32:23,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:32:23,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 15:32:23,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395582450] [2024-11-09 15:32:23,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:32:23,550 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-09 15:32:23,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:32:23,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 15:32:23,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 15:32:23,551 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) [2024-11-09 15:32:23,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 15:32:23,570 INFO L93 Difference]: Finished difference Result 116 states and 146 transitions. [2024-11-09 15:32:23,570 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 116 states and 146 transitions. [2024-11-09 15:32:23,571 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 56 [2024-11-09 15:32:23,572 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 116 states to 116 states and 146 transitions. [2024-11-09 15:32:23,572 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 64 [2024-11-09 15:32:23,572 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 64 [2024-11-09 15:32:23,572 INFO L73 IsDeterministic]: Start isDeterministic. Operand 116 states and 146 transitions. [2024-11-09 15:32:23,572 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-09 15:32:23,572 INFO L218 hiAutomatonCegarLoop]: Abstraction has 116 states and 146 transitions. [2024-11-09 15:32:23,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states and 146 transitions. [2024-11-09 15:32:23,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2024-11-09 15:32:23,577 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) [2024-11-09 15:32:23,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 146 transitions. [2024-11-09 15:32:23,577 INFO L240 hiAutomatonCegarLoop]: Abstraction has 116 states and 146 transitions. [2024-11-09 15:32:23,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 15:32:23,582 INFO L425 stractBuchiCegarLoop]: Abstraction has 116 states and 146 transitions. [2024-11-09 15:32:23,582 INFO L332 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2024-11-09 15:32:23,582 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 116 states and 146 transitions. [2024-11-09 15:32:23,582 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 56 [2024-11-09 15:32:23,583 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-09 15:32:23,583 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-09 15:32:23,583 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:32:23,583 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:32:23,583 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#$Ultimate##5 [2024-11-09 15:32:23,583 INFO L747 eck$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 [2024-11-09 15:32:23,584 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:32:23,584 INFO L85 PathProgramCache]: Analyzing trace with hash 1810723569, now seen corresponding path program 4 times [2024-11-09 15:32:23,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:32:23,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696242016] [2024-11-09 15:32:23,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:32:23,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:32:23,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:32:23,590 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 15:32:23,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:32:23,595 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 15:32:23,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:32:23,596 INFO L85 PathProgramCache]: Analyzing trace with hash 750960545, now seen corresponding path program 1 times [2024-11-09 15:32:23,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:32:23,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10485959] [2024-11-09 15:32:23,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:32:23,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:32:23,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:32:23,620 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:32:23,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:32:23,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10485959] [2024-11-09 15:32:23,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10485959] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:32:23,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:32:23,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 15:32:23,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054874305] [2024-11-09 15:32:23,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:32:23,621 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-09 15:32:23,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:32:23,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 15:32:23,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 15:32:23,622 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) [2024-11-09 15:32:23,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 15:32:23,630 INFO L93 Difference]: Finished difference Result 142 states and 175 transitions. [2024-11-09 15:32:23,630 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 142 states and 175 transitions. [2024-11-09 15:32:23,631 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 41 [2024-11-09 15:32:23,632 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 142 states to 137 states and 167 transitions. [2024-11-09 15:32:23,632 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 85 [2024-11-09 15:32:23,632 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 85 [2024-11-09 15:32:23,632 INFO L73 IsDeterministic]: Start isDeterministic. Operand 137 states and 167 transitions. [2024-11-09 15:32:23,632 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-09 15:32:23,632 INFO L218 hiAutomatonCegarLoop]: Abstraction has 137 states and 167 transitions. [2024-11-09 15:32:23,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states and 167 transitions. [2024-11-09 15:32:23,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 109. [2024-11-09 15:32:23,634 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) [2024-11-09 15:32:23,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 136 transitions. [2024-11-09 15:32:23,635 INFO L240 hiAutomatonCegarLoop]: Abstraction has 109 states and 136 transitions. [2024-11-09 15:32:23,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 15:32:23,636 INFO L425 stractBuchiCegarLoop]: Abstraction has 109 states and 136 transitions. [2024-11-09 15:32:23,636 INFO L332 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2024-11-09 15:32:23,636 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 109 states and 136 transitions. [2024-11-09 15:32:23,637 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 41 [2024-11-09 15:32:23,637 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-09 15:32:23,637 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-09 15:32:23,637 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:32:23,637 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:32:23,638 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#$Ultimate##5 [2024-11-09 15:32:23,638 INFO L747 eck$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 [2024-11-09 15:32:23,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:32:23,638 INFO L85 PathProgramCache]: Analyzing trace with hash 1810723569, now seen corresponding path program 5 times [2024-11-09 15:32:23,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:32:23,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991222070] [2024-11-09 15:32:23,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:32:23,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:32:23,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:32:23,643 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 15:32:23,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:32:23,647 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 15:32:23,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:32:23,647 INFO L85 PathProgramCache]: Analyzing trace with hash 1947655960, now seen corresponding path program 1 times [2024-11-09 15:32:23,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:32:23,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463540714] [2024-11-09 15:32:23,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:32:23,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:32:23,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:32:23,650 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 15:32:23,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:32:23,653 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 15:32:23,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:32:23,654 INFO L85 PathProgramCache]: Analyzing trace with hash 163931656, now seen corresponding path program 1 times [2024-11-09 15:32:23,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:32:23,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402006054] [2024-11-09 15:32:23,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:32:23,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:32:23,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:32:23,672 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:32:23,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:32:23,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402006054] [2024-11-09 15:32:23,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402006054] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:32:23,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:32:23,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 15:32:23,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376442554] [2024-11-09 15:32:23,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:32:23,731 INFO L204 LassoAnalysis]: Preferences: [2024-11-09 15:32:23,731 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-09 15:32:23,731 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-09 15:32:23,731 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-09 15:32:23,731 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-09 15:32:23,731 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:32:23,732 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-09 15:32:23,732 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-09 15:32:23,732 INFO L132 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration9_Loop [2024-11-09 15:32:23,732 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-09 15:32:23,732 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-09 15:32:23,732 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:32:23,737 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:32:23,740 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:32:23,813 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-09 15:32:23,813 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-09 15:32:23,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:32:23,813 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:32:23,815 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) [2024-11-09 15:32:23,816 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 [2024-11-09 15:32:23,818 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-09 15:32:23,818 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 15:32:23,857 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 [2024-11-09 15:32:23,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:32:23,858 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:32:23,860 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) [2024-11-09 15:32:23,861 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 [2024-11-09 15:32:23,862 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-09 15:32:23,862 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-09 15:32:23,877 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-09 15:32:23,891 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2024-11-09 15:32:23,892 INFO L204 LassoAnalysis]: Preferences: [2024-11-09 15:32:23,892 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-09 15:32:23,892 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-09 15:32:23,892 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-09 15:32:23,892 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-09 15:32:23,892 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:32:23,892 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-09 15:32:23,892 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-09 15:32:23,892 INFO L132 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration9_Loop [2024-11-09 15:32:23,892 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-09 15:32:23,892 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-09 15:32:23,893 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:32:23,899 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:32:23,902 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-09 15:32:23,975 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-09 15:32:23,979 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-09 15:32:23,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:32:23,979 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:32:23,981 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) [2024-11-09 15:32:23,982 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 [2024-11-09 15:32:23,984 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 [2024-11-09 15:32:23,996 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-09 15:32:23,997 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-09 15:32:23,997 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-09 15:32:23,997 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-09 15:32:23,997 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-09 15:32:23,998 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-09 15:32:23,999 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-09 15:32:24,001 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-09 15:32:24,007 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-09 15:32:24,007 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-09 15:32:24,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 15:32:24,008 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:32:24,009 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) [2024-11-09 15:32:24,010 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 [2024-11-09 15:32:24,011 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-09 15:32:24,011 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-09 15:32:24,011 INFO L474 LassoAnalysis]: Proved termination. [2024-11-09 15:32:24,011 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 [] [2024-11-09 15:32:24,026 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 [2024-11-09 15:32:24,026 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-09 15:32:24,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:32:24,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:32:24,045 INFO L255 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 15:32:24,045 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:32:24,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:32:24,059 INFO L255 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 15:32:24,060 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:32:24,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:32:24,092 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 [2024-11-09 15:32:24,092 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) [2024-11-09 15:32:24,131 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. [2024-11-09 15:32:24,131 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 [2024-11-09 15:32:24,131 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) [2024-11-09 15:32:24,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 38 transitions. [2024-11-09 15:32:24,132 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 38 transitions. Stem has 7 letters. Loop has 10 letters. [2024-11-09 15:32:24,132 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-09 15:32:24,132 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 38 transitions. Stem has 17 letters. Loop has 10 letters. [2024-11-09 15:32:24,132 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-09 15:32:24,132 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 38 transitions. Stem has 7 letters. Loop has 20 letters. [2024-11-09 15:32:24,132 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-09 15:32:24,133 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 148 states and 178 transitions. [2024-11-09 15:32:24,134 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 41 [2024-11-09 15:32:24,136 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 [2024-11-09 15:32:24,136 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 148 states to 109 states and 132 transitions. [2024-11-09 15:32:24,137 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 57 [2024-11-09 15:32:24,137 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 57 [2024-11-09 15:32:24,137 INFO L73 IsDeterministic]: Start isDeterministic. Operand 109 states and 132 transitions. [2024-11-09 15:32:24,137 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-09 15:32:24,137 INFO L218 hiAutomatonCegarLoop]: Abstraction has 109 states and 132 transitions. [2024-11-09 15:32:24,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states and 132 transitions. [2024-11-09 15:32:24,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2024-11-09 15:32:24,139 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) [2024-11-09 15:32:24,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 132 transitions. [2024-11-09 15:32:24,139 INFO L240 hiAutomatonCegarLoop]: Abstraction has 109 states and 132 transitions. [2024-11-09 15:32:24,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:32:24,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 15:32:24,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 15:32:24,140 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) [2024-11-09 15:32:24,152 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2024-11-09 15:32:24,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 15:32:24,159 INFO L93 Difference]: Finished difference Result 92 states and 106 transitions. [2024-11-09 15:32:24,160 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 92 states and 106 transitions. [2024-11-09 15:32:24,160 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 21 [2024-11-09 15:32:24,161 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 92 states to 62 states and 71 transitions. [2024-11-09 15:32:24,161 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 42 [2024-11-09 15:32:24,161 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 46 [2024-11-09 15:32:24,161 INFO L73 IsDeterministic]: Start isDeterministic. Operand 62 states and 71 transitions. [2024-11-09 15:32:24,161 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-09 15:32:24,161 INFO L218 hiAutomatonCegarLoop]: Abstraction has 62 states and 71 transitions. [2024-11-09 15:32:24,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states and 71 transitions. [2024-11-09 15:32:24,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2024-11-09 15:32:24,162 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) [2024-11-09 15:32:24,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 71 transitions. [2024-11-09 15:32:24,163 INFO L240 hiAutomatonCegarLoop]: Abstraction has 62 states and 71 transitions. [2024-11-09 15:32:24,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 15:32:24,163 INFO L425 stractBuchiCegarLoop]: Abstraction has 62 states and 71 transitions. [2024-11-09 15:32:24,163 INFO L332 stractBuchiCegarLoop]: ======== Iteration 10 ============ [2024-11-09 15:32:24,164 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 62 states and 71 transitions. [2024-11-09 15:32:24,164 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 21 [2024-11-09 15:32:24,164 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-09 15:32:24,164 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-09 15:32:24,164 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:32:24,164 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:32:24,165 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 [2024-11-09 15:32:24,165 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 [2024-11-09 15:32:24,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:32:24,165 INFO L85 PathProgramCache]: Analyzing trace with hash 21626939, now seen corresponding path program 1 times [2024-11-09 15:32:24,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:32:24,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881255383] [2024-11-09 15:32:24,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:32:24,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:32:24,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:32:24,171 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 15:32:24,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:32:24,175 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 15:32:24,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:32:24,175 INFO L85 PathProgramCache]: Analyzing trace with hash 1294878776, now seen corresponding path program 1 times [2024-11-09 15:32:24,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:32:24,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942963808] [2024-11-09 15:32:24,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:32:24,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:32:24,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:32:24,180 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 15:32:24,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:32:24,182 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 15:32:24,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:32:24,183 INFO L85 PathProgramCache]: Analyzing trace with hash 937672638, now seen corresponding path program 1 times [2024-11-09 15:32:24,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:32:24,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409180375] [2024-11-09 15:32:24,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:32:24,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:32:24,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:32:24,192 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 15:32:24,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:32:24,197 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 15:32:24,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:32:24,383 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 15:32:24,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:32:24,421 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 09.11 03:32:24 BoogieIcfgContainer [2024-11-09 15:32:24,421 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-09 15:32:24,422 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 15:32:24,422 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 15:32:24,422 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 15:32:24,423 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:32:20" (3/4) ... [2024-11-09 15:32:24,425 INFO L139 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-09 15:32:24,461 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-09 15:32:24,461 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 15:32:24,462 INFO L158 Benchmark]: Toolchain (without parser) took 4898.98ms. Allocated memory was 155.2MB in the beginning and 199.2MB in the end (delta: 44.0MB). Free memory was 122.9MB in the beginning and 135.2MB in the end (delta: -12.3MB). Peak memory consumption was 33.3MB. Max. memory is 16.1GB. [2024-11-09 15:32:24,462 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 155.2MB. Free memory was 128.7MB in the beginning and 128.5MB in the end (delta: 150.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 15:32:24,462 INFO L158 Benchmark]: CACSL2BoogieTranslator took 261.69ms. Allocated memory is still 155.2MB. Free memory was 122.4MB in the beginning and 110.0MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-09 15:32:24,463 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.49ms. Allocated memory is still 155.2MB. Free memory was 110.0MB in the beginning and 108.7MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 15:32:24,463 INFO L158 Benchmark]: Boogie Preprocessor took 30.14ms. Allocated memory is still 155.2MB. Free memory was 108.7MB in the beginning and 106.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 15:32:24,463 INFO L158 Benchmark]: RCFGBuilder took 356.71ms. Allocated memory is still 155.2MB. Free memory was 106.7MB in the beginning and 95.7MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-09 15:32:24,463 INFO L158 Benchmark]: BuchiAutomizer took 4178.91ms. Allocated memory was 155.2MB in the beginning and 199.2MB in the end (delta: 44.0MB). Free memory was 95.7MB in the beginning and 137.3MB in the end (delta: -41.5MB). Peak memory consumption was 3.9MB. Max. memory is 16.1GB. [2024-11-09 15:32:24,464 INFO L158 Benchmark]: Witness Printer took 39.94ms. Allocated memory is still 199.2MB. Free memory was 137.3MB in the beginning and 135.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 15:32:24,465 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 155.2MB. Free memory was 128.7MB in the beginning and 128.5MB in the end (delta: 150.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 261.69ms. Allocated memory is still 155.2MB. Free memory was 122.4MB in the beginning and 110.0MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.49ms. Allocated memory is still 155.2MB. Free memory was 110.0MB in the beginning and 108.7MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.14ms. Allocated memory is still 155.2MB. Free memory was 108.7MB in the beginning and 106.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 356.71ms. Allocated memory is still 155.2MB. Free memory was 106.7MB in the beginning and 95.7MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 4178.91ms. Allocated memory was 155.2MB in the beginning and 199.2MB in the end (delta: 44.0MB). Free memory was 95.7MB in the beginning and 137.3MB in the end (delta: -41.5MB). Peak memory consumption was 3.9MB. Max. memory is 16.1GB. * Witness Printer took 39.94ms. Allocated memory is still 199.2MB. Free memory was 137.3MB in the beginning and 135.2MB 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 4.0s and 10 iterations. TraceHistogramMax:2. Analysis of lassos took 2.8s. 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: 24ms 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! [2024-11-09 15:32:24,486 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)