./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 8be7027f 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-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 21:05:31,807 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 21:05:31,877 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-12 21:05:31,881 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 21:05:31,882 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 21:05:31,904 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 21:05:31,905 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 21:05:31,905 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 21:05:31,906 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 21:05:31,906 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 21:05:31,907 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 21:05:31,907 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 21:05:31,907 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 21:05:31,908 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-12 21:05:31,908 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-12 21:05:31,908 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-12 21:05:31,909 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-12 21:05:31,909 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-12 21:05:31,909 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-12 21:05:31,910 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 21:05:31,910 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-12 21:05:31,911 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-12 21:05:31,911 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 21:05:31,911 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-12 21:05:31,911 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 21:05:31,912 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-12 21:05:31,912 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-12 21:05:31,912 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-12 21:05:31,913 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 21:05:31,913 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-12 21:05:31,913 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-12 21:05:31,914 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 21:05:31,914 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-12 21:05:31,914 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 21:05:31,915 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 21:05:31,915 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 21:05:31,916 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 21:05:31,916 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 21:05:31,917 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-12 21:05:31,917 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 153b6d90c91de27e09ed3c918b0b1be779b258e790f6fc392e7d5f390719c2db [2024-11-12 21:05:32,202 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 21:05:32,230 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 21:05:32,233 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 21:05:32,236 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 21:05:32,237 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 21:05:32,238 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/openssl-simplified/s3_srvr_1b.cil.c [2024-11-12 21:05:33,691 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 21:05:33,872 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 21:05:33,873 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/openssl-simplified/s3_srvr_1b.cil.c [2024-11-12 21:05:33,879 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c4433e8a/48b6e768f43a489d96708f7cbfe1ca3d/FLAGff7b85f1f [2024-11-12 21:05:33,893 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c4433e8a/48b6e768f43a489d96708f7cbfe1ca3d [2024-11-12 21:05:33,895 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 21:05:33,897 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 21:05:33,898 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 21:05:33,898 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 21:05:33,905 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 21:05:33,906 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 09:05:33" (1/1) ... [2024-11-12 21:05:33,907 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@614afda2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:05:33, skipping insertion in model container [2024-11-12 21:05:33,907 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 09:05:33" (1/1) ... [2024-11-12 21:05:33,940 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 21:05:34,139 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 21:05:34,150 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 21:05:34,167 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 21:05:34,182 INFO L204 MainTranslator]: Completed translation [2024-11-12 21:05:34,183 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:05:34 WrapperNode [2024-11-12 21:05:34,183 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 21:05:34,184 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 21:05:34,184 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 21:05:34,184 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 21:05:34,190 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:05:34" (1/1) ... [2024-11-12 21:05:34,196 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:05:34" (1/1) ... [2024-11-12 21:05:34,211 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 74 [2024-11-12 21:05:34,211 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 21:05:34,212 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 21:05:34,212 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 21:05:34,212 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 21:05:34,220 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:05:34" (1/1) ... [2024-11-12 21:05:34,221 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:05:34" (1/1) ... [2024-11-12 21:05:34,223 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:05:34" (1/1) ... [2024-11-12 21:05:34,238 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]. [2024-11-12 21:05:34,239 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:05:34" (1/1) ... [2024-11-12 21:05:34,239 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:05:34" (1/1) ... [2024-11-12 21:05:34,241 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:05:34" (1/1) ... [2024-11-12 21:05:34,245 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:05:34" (1/1) ... [2024-11-12 21:05:34,246 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:05:34" (1/1) ... [2024-11-12 21:05:34,247 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:05:34" (1/1) ... [2024-11-12 21:05:34,249 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 21:05:34,249 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 21:05:34,250 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 21:05:34,250 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 21:05:34,251 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:05:34" (1/1) ... [2024-11-12 21:05:34,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:05:34,274 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:05:34,295 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) [2024-11-12 21:05:34,299 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 [2024-11-12 21:05:34,354 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 21:05:34,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-12 21:05:34,354 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 21:05:34,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 21:05:34,486 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 21:05:34,493 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 21:05:34,664 INFO L? ?]: Removed 15 outVars from TransFormulas that were not future-live. [2024-11-12 21:05:34,664 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 21:05:34,675 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 21:05:34,676 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-12 21:05:34,676 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 09:05:34 BoogieIcfgContainer [2024-11-12 21:05:34,676 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 21:05:34,677 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-12 21:05:34,678 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-12 21:05:34,682 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-12 21:05:34,683 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-12 21:05:34,684 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 12.11 09:05:33" (1/3) ... [2024-11-12 21:05:34,686 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@79bbadfc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.11 09:05:34, skipping insertion in model container [2024-11-12 21:05:34,686 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-12 21:05:34,686 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:05:34" (2/3) ... [2024-11-12 21:05:34,686 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@79bbadfc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.11 09:05:34, skipping insertion in model container [2024-11-12 21:05:34,686 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-12 21:05:34,686 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 09:05:34" (3/3) ... [2024-11-12 21:05:34,687 INFO L332 chiAutomizerObserver]: Analyzing ICFG s3_srvr_1b.cil.c [2024-11-12 21:05:34,769 INFO L301 stractBuchiCegarLoop]: Interprodecural is true [2024-11-12 21:05:34,770 INFO L302 stractBuchiCegarLoop]: Hoare is None [2024-11-12 21:05:34,770 INFO L303 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-12 21:05:34,770 INFO L304 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-12 21:05:34,770 INFO L305 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-12 21:05:34,770 INFO L306 stractBuchiCegarLoop]: Difference is false [2024-11-12 21:05:34,770 INFO L307 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-12 21:05:34,771 INFO L311 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-12 21:05:34,775 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) [2024-11-12 21:05:34,792 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 16 [2024-11-12 21:05:34,793 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-12 21:05:34,794 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-12 21:05:34,799 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-12 21:05:34,800 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2024-11-12 21:05:34,800 INFO L333 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-12 21:05:34,800 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) [2024-11-12 21:05:34,802 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 16 [2024-11-12 21:05:34,803 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-12 21:05:34,803 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-12 21:05:34,804 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-12 21:05:34,804 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2024-11-12 21:05:34,811 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_~s__state~0#1, main_~s__hit~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;havoc main_#t~nondet4#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0;" [2024-11-12 21:05:34,812 INFO L749 eck$LassoCheckResult]: Loop: "assume !false;" "assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2);" "assume 8466 == main_~s__state~0#1;" "assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2;" "assume !(0 != main_~s__hit~0#1);main_~s__state~0#1 := 8512;" [2024-11-12 21:05:34,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:05:34,818 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-11-12 21:05:34,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:05:34,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278414123] [2024-11-12 21:05:34,829 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:05:34,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:05:34,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:05:34,922 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 21:05:34,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:05:34,950 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 21:05:34,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:05:34,953 INFO L85 PathProgramCache]: Analyzing trace with hash 39284085, now seen corresponding path program 1 times [2024-11-12 21:05:34,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:05:34,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212894208] [2024-11-12 21:05:34,954 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:05:34,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:05:34,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:05:34,967 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 21:05:34,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:05:34,974 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 21:05:34,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:05:34,976 INFO L85 PathProgramCache]: Analyzing trace with hash 1810723571, now seen corresponding path program 1 times [2024-11-12 21:05:34,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:05:34,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068360282] [2024-11-12 21:05:34,977 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:05:34,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:05:34,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:05:34,994 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 21:05:35,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:05:35,003 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 21:05:35,124 INFO L204 LassoAnalysis]: Preferences: [2024-11-12 21:05:35,124 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-12 21:05:35,125 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-12 21:05:35,125 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-12 21:05:35,125 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-12 21:05:35,125 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:05:35,126 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-12 21:05:35,126 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-12 21:05:35,126 INFO L132 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration1_Loop [2024-11-12 21:05:35,126 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-12 21:05:35,126 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-12 21:05:35,143 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 21:05:35,155 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 21:05:35,168 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 21:05:35,245 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-12 21:05:35,246 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-12 21:05:35,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:05:35,248 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:05:35,250 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) [2024-11-12 21:05:35,251 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 [2024-11-12 21:05:35,253 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 21:05:35,253 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 21:05:35,273 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-12 21:05:35,274 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: [] [2024-11-12 21:05:35,290 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2024-11-12 21:05:35,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:05:35,291 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:05:35,293 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) [2024-11-12 21:05:35,296 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 [2024-11-12 21:05:35,298 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 21:05:35,299 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 21:05:35,326 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2024-11-12 21:05:35,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:05:35,327 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:05:35,328 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) [2024-11-12 21:05:35,329 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 [2024-11-12 21:05:35,331 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-12 21:05:35,331 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 21:05:35,352 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-12 21:05:35,367 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2024-11-12 21:05:35,367 INFO L204 LassoAnalysis]: Preferences: [2024-11-12 21:05:35,368 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-12 21:05:35,368 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-12 21:05:35,368 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-12 21:05:35,368 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-12 21:05:35,368 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:05:35,368 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-12 21:05:35,368 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-12 21:05:35,368 INFO L132 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration1_Loop [2024-11-12 21:05:35,368 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-12 21:05:35,369 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-12 21:05:35,370 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 21:05:35,374 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 21:05:35,382 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 21:05:35,454 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-12 21:05:35,457 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-12 21:05:35,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:05:35,458 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:05:35,459 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) [2024-11-12 21:05:35,460 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 [2024-11-12 21:05:35,462 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 [2024-11-12 21:05:35,473 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 21:05:35,473 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-12 21:05:35,473 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 21:05:35,473 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 21:05:35,473 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 21:05:35,475 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-12 21:05:35,475 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-12 21:05:35,477 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-12 21:05:35,488 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 [2024-11-12 21:05:35,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:05:35,489 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:05:35,490 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) [2024-11-12 21:05:35,492 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 [2024-11-12 21:05:35,492 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 [2024-11-12 21:05:35,503 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 21:05:35,503 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-12 21:05:35,503 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 21:05:35,503 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 21:05:35,503 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 21:05:35,506 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-12 21:05:35,506 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-12 21:05:35,510 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-12 21:05:35,513 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-12 21:05:35,513 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-12 21:05:35,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:05:35,515 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:05:35,534 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) [2024-11-12 21:05:35,536 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 [2024-11-12 21:05:35,536 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-12 21:05:35,537 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-12 21:05:35,537 INFO L474 LassoAnalysis]: Proved termination. [2024-11-12 21:05:35,537 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 [] [2024-11-12 21:05:35,554 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 [2024-11-12 21:05:35,558 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-12 21:05:35,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:05:35,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 21:05:35,630 INFO L256 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-12 21:05:35,631 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 21:05:35,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 21:05:35,646 INFO L256 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-12 21:05:35,647 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 21:05:35,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 21:05:35,743 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 [2024-11-12 21:05:35,745 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) [2024-11-12 21:05:35,827 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. [2024-11-12 21:05:35,829 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 [2024-11-12 21:05:35,834 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) [2024-11-12 21:05:35,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 41 transitions. [2024-11-12 21:05:35,835 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 41 transitions. Stem has 2 letters. Loop has 5 letters. [2024-11-12 21:05:35,836 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 21:05:35,836 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 41 transitions. Stem has 7 letters. Loop has 5 letters. [2024-11-12 21:05:35,836 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 21:05:35,836 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 41 transitions. Stem has 2 letters. Loop has 10 letters. [2024-11-12 21:05:35,837 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 21:05:35,837 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 51 states and 82 transitions. [2024-11-12 21:05:35,841 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 16 [2024-11-12 21:05:35,845 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 51 states to 38 states and 59 transitions. [2024-11-12 21:05:35,845 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2024-11-12 21:05:35,846 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2024-11-12 21:05:35,846 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 59 transitions. [2024-11-12 21:05:35,846 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-12 21:05:35,846 INFO L218 hiAutomatonCegarLoop]: Abstraction has 38 states and 59 transitions. [2024-11-12 21:05:35,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states and 59 transitions. [2024-11-12 21:05:35,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 36. [2024-11-12 21:05:35,874 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) [2024-11-12 21:05:35,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 57 transitions. [2024-11-12 21:05:35,878 INFO L240 hiAutomatonCegarLoop]: Abstraction has 36 states and 57 transitions. [2024-11-12 21:05:35,879 INFO L426 stractBuchiCegarLoop]: Abstraction has 36 states and 57 transitions. [2024-11-12 21:05:35,879 INFO L333 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-12 21:05:35,880 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 36 states and 57 transitions. [2024-11-12 21:05:35,881 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 16 [2024-11-12 21:05:35,883 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-12 21:05:35,883 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-12 21:05:35,884 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-12 21:05:35,884 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2024-11-12 21:05:35,884 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_~s__state~0#1, main_~s__hit~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;havoc main_#t~nondet4#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0;" "assume !false;" [2024-11-12 21:05:35,884 INFO L749 eck$LassoCheckResult]: Loop: "assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2);" "assume 8466 == main_~s__state~0#1;" "assume !(0 == main_~blastFlag~0#1);" "assume !(0 != main_~s__hit~0#1);main_~s__state~0#1 := 8512;" "assume !false;" [2024-11-12 21:05:35,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:05:35,885 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2024-11-12 21:05:35,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:05:35,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675409439] [2024-11-12 21:05:35,887 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:05:35,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:05:35,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:05:35,896 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 21:05:35,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:05:35,902 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 21:05:35,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:05:35,903 INFO L85 PathProgramCache]: Analyzing trace with hash 44013377, now seen corresponding path program 1 times [2024-11-12 21:05:35,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:05:35,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084773736] [2024-11-12 21:05:35,903 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:05:35,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:05:35,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:05:35,908 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 21:05:35,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:05:35,911 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 21:05:35,916 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:05:35,916 INFO L85 PathProgramCache]: Analyzing trace with hash 297857786, now seen corresponding path program 1 times [2024-11-12 21:05:35,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:05:35,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001928051] [2024-11-12 21:05:35,916 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:05:35,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:05:35,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 21:05:35,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 21:05:35,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001928051] [2024-11-12 21:05:35,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001928051] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 21:05:35,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1494360137] [2024-11-12 21:05:35,998 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:05:35,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 21:05:35,999 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:05:36,000 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 21:05:36,002 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-12 21:05:36,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 21:05:36,038 INFO L256 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-12 21:05:36,039 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 21:05:36,050 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 21:05:36,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1494360137] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 21:05:36,066 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 21:05:36,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2024-11-12 21:05:36,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217197058] [2024-11-12 21:05:36,069 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 21:05:36,122 INFO L204 LassoAnalysis]: Preferences: [2024-11-12 21:05:36,123 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-12 21:05:36,123 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-12 21:05:36,123 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-12 21:05:36,123 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-12 21:05:36,123 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:05:36,123 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-12 21:05:36,123 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-12 21:05:36,124 INFO L132 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration2_Loop [2024-11-12 21:05:36,124 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-12 21:05:36,124 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-12 21:05:36,125 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 21:05:36,131 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 21:05:36,136 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 21:05:36,194 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-12 21:05:36,195 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-12 21:05:36,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:05:36,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:05:36,197 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) [2024-11-12 21:05:36,199 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 [2024-11-12 21:05:36,200 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 21:05:36,200 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 21:05:36,223 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2024-11-12 21:05:36,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:05:36,224 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:05:36,226 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) [2024-11-12 21:05:36,227 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 [2024-11-12 21:05:36,227 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-12 21:05:36,228 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 21:05:36,241 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-12 21:05:36,256 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 [2024-11-12 21:05:36,257 INFO L204 LassoAnalysis]: Preferences: [2024-11-12 21:05:36,257 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-12 21:05:36,257 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-12 21:05:36,257 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-12 21:05:36,257 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-12 21:05:36,257 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:05:36,257 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-12 21:05:36,257 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-12 21:05:36,258 INFO L132 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration2_Loop [2024-11-12 21:05:36,258 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-12 21:05:36,258 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-12 21:05:36,259 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 21:05:36,266 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 21:05:36,272 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 21:05:36,322 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-12 21:05:36,322 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-12 21:05:36,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:05:36,323 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:05:36,326 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) [2024-11-12 21:05:36,327 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 [2024-11-12 21:05:36,328 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 [2024-11-12 21:05:36,341 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 21:05:36,341 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-12 21:05:36,341 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 21:05:36,341 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 21:05:36,342 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 21:05:36,343 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-12 21:05:36,343 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-12 21:05:36,345 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-12 21:05:36,348 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-12 21:05:36,348 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-12 21:05:36,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:05:36,349 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:05:36,351 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) [2024-11-12 21:05:36,352 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 [2024-11-12 21:05:36,353 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-12 21:05:36,353 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-12 21:05:36,353 INFO L474 LassoAnalysis]: Proved termination. [2024-11-12 21:05:36,353 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 [] [2024-11-12 21:05:36,369 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 [2024-11-12 21:05:36,371 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-12 21:05:36,387 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:05:36,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 21:05:36,398 INFO L256 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-12 21:05:36,399 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 21:05:36,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 21:05:36,412 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-12 21:05:36,412 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 21:05:36,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 21:05:36,451 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 [2024-11-12 21:05:36,452 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) [2024-11-12 21:05:36,514 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. [2024-11-12 21:05:36,520 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 [2024-11-12 21:05:36,521 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) [2024-11-12 21:05:36,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2024-11-12 21:05:36,522 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 3 letters. Loop has 5 letters. [2024-11-12 21:05:36,522 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 21:05:36,522 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 8 letters. Loop has 5 letters. [2024-11-12 21:05:36,522 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 21:05:36,522 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 3 letters. Loop has 10 letters. [2024-11-12 21:05:36,522 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 21:05:36,523 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 72 states and 109 transitions. [2024-11-12 21:05:36,530 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 16 [2024-11-12 21:05:36,531 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 72 states to 61 states and 97 transitions. [2024-11-12 21:05:36,531 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 25 [2024-11-12 21:05:36,531 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 27 [2024-11-12 21:05:36,531 INFO L73 IsDeterministic]: Start isDeterministic. Operand 61 states and 97 transitions. [2024-11-12 21:05:36,531 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-12 21:05:36,532 INFO L218 hiAutomatonCegarLoop]: Abstraction has 61 states and 97 transitions. [2024-11-12 21:05:36,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states and 97 transitions. [2024-11-12 21:05:36,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 54. [2024-11-12 21:05:36,541 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2024-11-12 21:05:36,544 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) [2024-11-12 21:05:36,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 86 transitions. [2024-11-12 21:05:36,546 INFO L240 hiAutomatonCegarLoop]: Abstraction has 54 states and 86 transitions. [2024-11-12 21:05:36,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 21:05:36,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 21:05:36,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 21:05:36,552 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) [2024-11-12 21:05:36,565 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 [2024-11-12 21:05:36,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 21:05:36,594 INFO L93 Difference]: Finished difference Result 90 states and 128 transitions. [2024-11-12 21:05:36,595 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 90 states and 128 transitions. [2024-11-12 21:05:36,597 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 30 [2024-11-12 21:05:36,598 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 90 states to 87 states and 125 transitions. [2024-11-12 21:05:36,598 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 38 [2024-11-12 21:05:36,598 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 38 [2024-11-12 21:05:36,598 INFO L73 IsDeterministic]: Start isDeterministic. Operand 87 states and 125 transitions. [2024-11-12 21:05:36,598 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-12 21:05:36,599 INFO L218 hiAutomatonCegarLoop]: Abstraction has 87 states and 125 transitions. [2024-11-12 21:05:36,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states and 125 transitions. [2024-11-12 21:05:36,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 85. [2024-11-12 21:05:36,605 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) [2024-11-12 21:05:36,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 123 transitions. [2024-11-12 21:05:36,607 INFO L240 hiAutomatonCegarLoop]: Abstraction has 85 states and 123 transitions. [2024-11-12 21:05:36,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 21:05:36,609 INFO L426 stractBuchiCegarLoop]: Abstraction has 85 states and 123 transitions. [2024-11-12 21:05:36,610 INFO L333 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-12 21:05:36,610 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 85 states and 123 transitions. [2024-11-12 21:05:36,611 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 30 [2024-11-12 21:05:36,613 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-12 21:05:36,613 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-12 21:05:36,613 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-12 21:05:36,613 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2024-11-12 21:05:36,614 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_~s__state~0#1, main_~s__hit~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;havoc main_#t~nondet4#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0;" "assume !false;" [2024-11-12 21:05:36,614 INFO L749 eck$LassoCheckResult]: Loop: "assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2);" "assume !(8466 == main_~s__state~0#1);" "assume 8512 == main_~s__state~0#1;" "havoc main_#t~nondet5#1;main_~tmp___1~0#1 := main_#t~nondet5#1;" "assume 0 != main_~tmp___1~0#1;main_~s__state~0#1 := 8466;" "assume !false;" [2024-11-12 21:05:36,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:05:36,615 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 2 times [2024-11-12 21:05:36,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:05:36,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24274194] [2024-11-12 21:05:36,616 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:05:36,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:05:36,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:05:36,628 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 21:05:36,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:05:36,633 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 21:05:36,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:05:36,634 INFO L85 PathProgramCache]: Analyzing trace with hash 1365729718, now seen corresponding path program 1 times [2024-11-12 21:05:36,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:05:36,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739081953] [2024-11-12 21:05:36,634 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:05:36,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:05:36,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:05:36,642 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 21:05:36,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:05:36,645 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 21:05:36,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:05:36,646 INFO L85 PathProgramCache]: Analyzing trace with hash 644971805, now seen corresponding path program 1 times [2024-11-12 21:05:36,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:05:36,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303309717] [2024-11-12 21:05:36,646 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:05:36,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:05:36,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 21:05:36,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 21:05:36,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303309717] [2024-11-12 21:05:36,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303309717] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 21:05:36,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1742685402] [2024-11-12 21:05:36,686 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:05:36,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 21:05:36,686 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:05:36,688 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 21:05:36,689 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-12 21:05:36,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 21:05:36,726 INFO L256 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-12 21:05:36,726 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 21:05:36,738 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 21:05:36,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1742685402] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 21:05:36,751 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 21:05:36,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2024-11-12 21:05:36,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794239126] [2024-11-12 21:05:36,752 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 21:05:36,786 INFO L204 LassoAnalysis]: Preferences: [2024-11-12 21:05:36,786 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-12 21:05:36,786 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-12 21:05:36,786 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-12 21:05:36,786 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-12 21:05:36,786 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:05:36,786 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-12 21:05:36,786 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-12 21:05:36,787 INFO L132 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration3_Loop [2024-11-12 21:05:36,787 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-12 21:05:36,787 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-12 21:05:36,787 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 21:05:36,795 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 21:05:36,797 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 21:05:36,820 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-12 21:05:36,822 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-12 21:05:36,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:05:36,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:05:36,824 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) [2024-11-12 21:05:36,825 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 [2024-11-12 21:05:36,826 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 21:05:36,826 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 21:05:36,851 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2024-11-12 21:05:36,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:05:36,852 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:05:36,853 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) [2024-11-12 21:05:36,854 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 [2024-11-12 21:05:36,854 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-12 21:05:36,854 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 21:05:36,868 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-12 21:05:36,883 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 [2024-11-12 21:05:36,884 INFO L204 LassoAnalysis]: Preferences: [2024-11-12 21:05:36,884 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-12 21:05:36,884 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-12 21:05:36,884 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-12 21:05:36,884 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-12 21:05:36,884 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:05:36,884 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-12 21:05:36,884 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-12 21:05:36,884 INFO L132 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration3_Loop [2024-11-12 21:05:36,884 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-12 21:05:36,884 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-12 21:05:36,885 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 21:05:36,900 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 21:05:36,903 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 21:05:36,927 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-12 21:05:36,927 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-12 21:05:36,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:05:36,928 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:05:36,930 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) [2024-11-12 21:05:36,931 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 [2024-11-12 21:05:36,932 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 [2024-11-12 21:05:36,945 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 21:05:36,945 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-12 21:05:36,945 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 21:05:36,945 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 21:05:36,945 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 21:05:36,946 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-12 21:05:36,946 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-12 21:05:36,949 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-12 21:05:36,951 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-11-12 21:05:36,951 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-12 21:05:36,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:05:36,952 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:05:36,954 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) [2024-11-12 21:05:36,955 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 [2024-11-12 21:05:36,956 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-12 21:05:36,956 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-12 21:05:36,956 INFO L474 LassoAnalysis]: Proved termination. [2024-11-12 21:05:36,957 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 [] [2024-11-12 21:05:36,970 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2024-11-12 21:05:36,970 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-12 21:05:36,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:05:36,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 21:05:36,992 INFO L256 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-12 21:05:36,992 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 21:05:37,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 21:05:37,001 INFO L256 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-12 21:05:37,001 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 21:05:37,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 21:05:37,036 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 [2024-11-12 21:05:37,036 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) [2024-11-12 21:05:37,125 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. [2024-11-12 21:05:37,126 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 [2024-11-12 21:05:37,126 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) [2024-11-12 21:05:37,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 46 transitions. [2024-11-12 21:05:37,127 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 46 transitions. Stem has 3 letters. Loop has 6 letters. [2024-11-12 21:05:37,127 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 21:05:37,127 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 46 transitions. Stem has 9 letters. Loop has 6 letters. [2024-11-12 21:05:37,127 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 21:05:37,127 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 46 transitions. Stem has 3 letters. Loop has 12 letters. [2024-11-12 21:05:37,127 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 21:05:37,128 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 255 states and 373 transitions. [2024-11-12 21:05:37,131 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 52 [2024-11-12 21:05:37,134 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 255 states to 254 states and 372 transitions. [2024-11-12 21:05:37,134 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 69 [2024-11-12 21:05:37,136 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 72 [2024-11-12 21:05:37,136 INFO L73 IsDeterministic]: Start isDeterministic. Operand 254 states and 372 transitions. [2024-11-12 21:05:37,136 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-12 21:05:37,137 INFO L218 hiAutomatonCegarLoop]: Abstraction has 254 states and 372 transitions. [2024-11-12 21:05:37,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states and 372 transitions. [2024-11-12 21:05:37,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 199. [2024-11-12 21:05:37,148 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) [2024-11-12 21:05:37,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 289 transitions. [2024-11-12 21:05:37,149 INFO L240 hiAutomatonCegarLoop]: Abstraction has 199 states and 289 transitions. [2024-11-12 21:05:37,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 21:05:37,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 21:05:37,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-12 21:05:37,150 INFO L87 Difference]: Start difference. First operand 199 states and 289 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 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) [2024-11-12 21:05:37,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 21:05:37,175 INFO L93 Difference]: Finished difference Result 66 states and 95 transitions. [2024-11-12 21:05:37,175 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 66 states and 95 transitions. [2024-11-12 21:05:37,176 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 19 [2024-11-12 21:05:37,177 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 66 states to 61 states and 90 transitions. [2024-11-12 21:05:37,177 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 25 [2024-11-12 21:05:37,177 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25 [2024-11-12 21:05:37,177 INFO L73 IsDeterministic]: Start isDeterministic. Operand 61 states and 90 transitions. [2024-11-12 21:05:37,177 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-12 21:05:37,178 INFO L218 hiAutomatonCegarLoop]: Abstraction has 61 states and 90 transitions. [2024-11-12 21:05:37,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states and 90 transitions. [2024-11-12 21:05:37,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2024-11-12 21:05:37,182 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) [2024-11-12 21:05:37,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 90 transitions. [2024-11-12 21:05:37,183 INFO L240 hiAutomatonCegarLoop]: Abstraction has 61 states and 90 transitions. [2024-11-12 21:05:37,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 21:05:37,187 INFO L426 stractBuchiCegarLoop]: Abstraction has 61 states and 90 transitions. [2024-11-12 21:05:37,187 INFO L333 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-12 21:05:37,187 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 61 states and 90 transitions. [2024-11-12 21:05:37,188 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 19 [2024-11-12 21:05:37,188 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-12 21:05:37,188 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-12 21:05:37,188 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1] [2024-11-12 21:05:37,188 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2024-11-12 21:05:37,189 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_~s__state~0#1, main_~s__hit~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;havoc main_#t~nondet4#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0;" "assume !false;" "assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2);" "assume 8466 == main_~s__state~0#1;" "assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2;" "assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8656;" "assume !false;" "assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2);" "assume !(8466 == main_~s__state~0#1);" [2024-11-12 21:05:37,189 INFO L749 eck$LassoCheckResult]: Loop: "assume 8512 == main_~s__state~0#1;" "havoc main_#t~nondet5#1;main_~tmp___1~0#1 := main_#t~nondet5#1;" "assume !(0 != main_~tmp___1~0#1);main_~s__state~0#1 := 8640;" "assume !false;" "assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2);" "assume !(8466 == main_~s__state~0#1);" [2024-11-12 21:05:37,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:05:37,189 INFO L85 PathProgramCache]: Analyzing trace with hash -1523382593, now seen corresponding path program 1 times [2024-11-12 21:05:37,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:05:37,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913740043] [2024-11-12 21:05:37,189 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:05:37,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:05:37,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:05:37,195 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 21:05:37,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:05:37,202 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 21:05:37,204 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:05:37,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1623382260, now seen corresponding path program 1 times [2024-11-12 21:05:37,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:05:37,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975043766] [2024-11-12 21:05:37,206 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:05:37,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:05:37,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:05:37,211 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 21:05:37,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:05:37,218 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 21:05:37,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:05:37,220 INFO L85 PathProgramCache]: Analyzing trace with hash -1141286606, now seen corresponding path program 1 times [2024-11-12 21:05:37,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:05:37,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392330038] [2024-11-12 21:05:37,221 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:05:37,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:05:37,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 21:05:37,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 21:05:37,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392330038] [2024-11-12 21:05:37,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392330038] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 21:05:37,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1540694231] [2024-11-12 21:05:37,258 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:05:37,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 21:05:37,259 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:05:37,261 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 21:05:37,265 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-12 21:05:37,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 21:05:37,298 INFO L256 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-12 21:05:37,298 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 21:05:37,308 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 21:05:37,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1540694231] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 21:05:37,330 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 21:05:37,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 4 [2024-11-12 21:05:37,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711536843] [2024-11-12 21:05:37,330 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 21:05:37,359 INFO L204 LassoAnalysis]: Preferences: [2024-11-12 21:05:37,359 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-12 21:05:37,359 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-12 21:05:37,359 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-12 21:05:37,359 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-12 21:05:37,359 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:05:37,359 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-12 21:05:37,359 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-12 21:05:37,359 INFO L132 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration4_Loop [2024-11-12 21:05:37,359 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-12 21:05:37,359 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-12 21:05:37,360 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 21:05:37,368 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 21:05:37,388 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-12 21:05:37,389 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-12 21:05:37,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:05:37,389 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:05:37,391 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) [2024-11-12 21:05:37,393 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 [2024-11-12 21:05:37,394 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 21:05:37,394 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 21:05:37,409 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-12 21:05:37,410 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: [] [2024-11-12 21:05:37,425 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2024-11-12 21:05:37,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:05:37,426 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:05:37,427 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) [2024-11-12 21:05:37,429 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 [2024-11-12 21:05:37,430 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 21:05:37,430 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 21:05:37,463 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2024-11-12 21:05:37,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:05:37,464 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:05:37,465 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) [2024-11-12 21:05:37,466 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 [2024-11-12 21:05:37,467 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-12 21:05:37,467 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 21:05:37,480 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-12 21:05:37,496 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 [2024-11-12 21:05:37,496 INFO L204 LassoAnalysis]: Preferences: [2024-11-12 21:05:37,496 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-12 21:05:37,496 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-12 21:05:37,496 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-12 21:05:37,496 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-12 21:05:37,496 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:05:37,496 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-12 21:05:37,496 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-12 21:05:37,496 INFO L132 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration4_Loop [2024-11-12 21:05:37,496 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-12 21:05:37,496 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-12 21:05:37,497 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 21:05:37,500 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 21:05:37,526 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-12 21:05:37,526 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-12 21:05:37,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:05:37,526 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:05:37,529 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) [2024-11-12 21:05:37,530 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 [2024-11-12 21:05:37,531 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 [2024-11-12 21:05:37,544 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 21:05:37,545 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-12 21:05:37,545 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 21:05:37,545 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 21:05:37,545 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 21:05:37,546 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-12 21:05:37,546 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-12 21:05:37,548 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-12 21:05:37,563 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2024-11-12 21:05:37,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:05:37,564 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:05:37,568 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) [2024-11-12 21:05:37,569 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 [2024-11-12 21:05:37,569 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 [2024-11-12 21:05:37,580 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 21:05:37,580 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-12 21:05:37,580 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 21:05:37,580 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 21:05:37,580 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 21:05:37,581 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-12 21:05:37,581 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-12 21:05:37,583 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-12 21:05:37,587 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-12 21:05:37,587 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-12 21:05:37,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:05:37,587 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:05:37,589 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) [2024-11-12 21:05:37,590 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 [2024-11-12 21:05:37,591 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-12 21:05:37,591 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-12 21:05:37,591 INFO L474 LassoAnalysis]: Proved termination. [2024-11-12 21:05:37,591 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 [] [2024-11-12 21:05:37,606 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 [2024-11-12 21:05:37,607 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-12 21:05:37,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:05:37,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 21:05:37,637 INFO L256 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-12 21:05:37,638 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 21:05:37,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 21:05:37,664 INFO L256 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-12 21:05:37,664 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 21:05:37,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 21:05:37,700 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 [2024-11-12 21:05:37,701 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) [2024-11-12 21:05:37,778 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. [2024-11-12 21:05:37,778 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 [2024-11-12 21:05:37,779 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) [2024-11-12 21:05:37,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 47 transitions. [2024-11-12 21:05:37,779 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 47 transitions. Stem has 10 letters. Loop has 6 letters. [2024-11-12 21:05:37,780 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 21:05:37,780 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 47 transitions. Stem has 16 letters. Loop has 6 letters. [2024-11-12 21:05:37,780 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 21:05:37,780 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 47 transitions. Stem has 10 letters. Loop has 12 letters. [2024-11-12 21:05:37,781 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 21:05:37,781 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 167 states and 244 transitions. [2024-11-12 21:05:37,784 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 30 [2024-11-12 21:05:37,787 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 167 states to 147 states and 216 transitions. [2024-11-12 21:05:37,787 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 43 [2024-11-12 21:05:37,788 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 46 [2024-11-12 21:05:37,788 INFO L73 IsDeterministic]: Start isDeterministic. Operand 147 states and 216 transitions. [2024-11-12 21:05:37,788 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-12 21:05:37,788 INFO L218 hiAutomatonCegarLoop]: Abstraction has 147 states and 216 transitions. [2024-11-12 21:05:37,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states and 216 transitions. [2024-11-12 21:05:37,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 141. [2024-11-12 21:05:37,794 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) [2024-11-12 21:05:37,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 207 transitions. [2024-11-12 21:05:37,795 INFO L240 hiAutomatonCegarLoop]: Abstraction has 141 states and 207 transitions. [2024-11-12 21:05:37,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 21:05:37,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 21:05:37,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-12 21:05:37,796 INFO L87 Difference]: Start difference. First operand 141 states and 207 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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) [2024-11-12 21:05:37,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 21:05:37,833 INFO L93 Difference]: Finished difference Result 169 states and 218 transitions. [2024-11-12 21:05:37,833 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 169 states and 218 transitions. [2024-11-12 21:05:37,835 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 29 [2024-11-12 21:05:37,835 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 169 states to 113 states and 144 transitions. [2024-11-12 21:05:37,835 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 50 [2024-11-12 21:05:37,836 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 61 [2024-11-12 21:05:37,836 INFO L73 IsDeterministic]: Start isDeterministic. Operand 113 states and 144 transitions. [2024-11-12 21:05:37,836 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-12 21:05:37,836 INFO L218 hiAutomatonCegarLoop]: Abstraction has 113 states and 144 transitions. [2024-11-12 21:05:37,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states and 144 transitions. [2024-11-12 21:05:37,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 88. [2024-11-12 21:05:37,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 88 states have (on average 1.2954545454545454) internal successors, (114), 87 states have internal predecessors, (114), 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) [2024-11-12 21:05:37,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 114 transitions. [2024-11-12 21:05:37,845 INFO L240 hiAutomatonCegarLoop]: Abstraction has 88 states and 114 transitions. [2024-11-12 21:05:37,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 21:05:37,846 INFO L426 stractBuchiCegarLoop]: Abstraction has 88 states and 114 transitions. [2024-11-12 21:05:37,846 INFO L333 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-11-12 21:05:37,846 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 88 states and 114 transitions. [2024-11-12 21:05:37,847 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 28 [2024-11-12 21:05:37,847 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-12 21:05:37,847 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-12 21:05:37,848 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-12 21:05:37,848 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 21:05:37,848 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_~s__state~0#1, main_~s__hit~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;havoc main_#t~nondet4#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0;" "assume !false;" "assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2);" "assume 8466 == main_~s__state~0#1;" "assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2;" "assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8656;" [2024-11-12 21:05:37,848 INFO L749 eck$LassoCheckResult]: Loop: "assume !false;" "assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2);" "assume !(8466 == main_~s__state~0#1);" "assume !(8512 == main_~s__state~0#1);" "assume !(8640 == main_~s__state~0#1);" "assume 8656 == main_~s__state~0#1;" "assume 2 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 3;" "assume 4 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 5;" "assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8640;" "assume !false;" "assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2);" "assume !(8466 == main_~s__state~0#1);" "assume !(8512 == main_~s__state~0#1);" "assume 8640 == main_~s__state~0#1;" "assume 3 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 4;" "assume !(0 != main_~s__hit~0#1);main_~s__state~0#1 := 8656;" [2024-11-12 21:05:37,848 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:05:37,848 INFO L85 PathProgramCache]: Analyzing trace with hash 1810723569, now seen corresponding path program 1 times [2024-11-12 21:05:37,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:05:37,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507271339] [2024-11-12 21:05:37,849 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:05:37,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:05:37,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:05:37,857 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 21:05:37,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:05:37,863 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 21:05:37,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:05:37,863 INFO L85 PathProgramCache]: Analyzing trace with hash 1722258677, now seen corresponding path program 1 times [2024-11-12 21:05:37,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:05:37,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943653048] [2024-11-12 21:05:37,864 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:05:37,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:05:37,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 21:05:37,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 21:05:37,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943653048] [2024-11-12 21:05:37,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943653048] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 21:05:37,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1701144829] [2024-11-12 21:05:37,911 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:05:37,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 21:05:37,911 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:05:37,913 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 21:05:37,914 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-12 21:05:37,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 21:05:37,945 INFO L256 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-12 21:05:37,946 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 21:05:37,949 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 21:05:37,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1701144829] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 21:05:37,954 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 21:05:37,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2024-11-12 21:05:37,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781764791] [2024-11-12 21:05:37,955 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 21:05:37,955 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-12 21:05:37,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 21:05:37,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 21:05:37,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 21:05:37,979 INFO L87 Difference]: Start difference. First operand 88 states and 114 transitions. cyclomatic complexity: 33 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) [2024-11-12 21:05:38,014 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2024-11-12 21:05:38,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 21:05:38,021 INFO L93 Difference]: Finished difference Result 105 states and 134 transitions. [2024-11-12 21:05:38,021 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 105 states and 134 transitions. [2024-11-12 21:05:38,022 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2024-11-12 21:05:38,023 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 105 states to 105 states and 134 transitions. [2024-11-12 21:05:38,023 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 53 [2024-11-12 21:05:38,023 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 53 [2024-11-12 21:05:38,023 INFO L73 IsDeterministic]: Start isDeterministic. Operand 105 states and 134 transitions. [2024-11-12 21:05:38,023 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-12 21:05:38,023 INFO L218 hiAutomatonCegarLoop]: Abstraction has 105 states and 134 transitions. [2024-11-12 21:05:38,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states and 134 transitions. [2024-11-12 21:05:38,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2024-11-12 21:05:38,035 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) [2024-11-12 21:05:38,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 134 transitions. [2024-11-12 21:05:38,039 INFO L240 hiAutomatonCegarLoop]: Abstraction has 105 states and 134 transitions. [2024-11-12 21:05:38,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 21:05:38,044 INFO L426 stractBuchiCegarLoop]: Abstraction has 105 states and 134 transitions. [2024-11-12 21:05:38,044 INFO L333 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-11-12 21:05:38,044 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 105 states and 134 transitions. [2024-11-12 21:05:38,045 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2024-11-12 21:05:38,048 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2024-11-12 21:05:38,048 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-12 21:05:38,048 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-12 21:05:38,049 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-12 21:05:38,049 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 21:05:38,049 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_~s__state~0#1, main_~s__hit~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;havoc main_#t~nondet4#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0;" "assume !false;" "assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2);" "assume 8466 == main_~s__state~0#1;" "assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2;" "assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8656;" [2024-11-12 21:05:38,049 INFO L749 eck$LassoCheckResult]: Loop: "assume !false;" "assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2);" "assume !(8466 == main_~s__state~0#1);" "assume !(8512 == main_~s__state~0#1);" "assume !(8640 == main_~s__state~0#1);" "assume 8656 == main_~s__state~0#1;" "assume 2 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 3;" "assume !(4 == main_~blastFlag~0#1);" "assume !(5 == main_~blastFlag~0#1);" "assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8640;" "assume !false;" "assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2);" "assume !(8466 == main_~s__state~0#1);" "assume !(8512 == main_~s__state~0#1);" "assume 8640 == main_~s__state~0#1;" "assume !(3 == main_~blastFlag~0#1);" "assume !(0 != main_~s__hit~0#1);main_~s__state~0#1 := 8656;" [2024-11-12 21:05:38,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:05:38,049 INFO L85 PathProgramCache]: Analyzing trace with hash 1810723569, now seen corresponding path program 2 times [2024-11-12 21:05:38,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:05:38,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26540671] [2024-11-12 21:05:38,050 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:05:38,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:05:38,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:05:38,058 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 21:05:38,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:05:38,065 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 21:05:38,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:05:38,067 INFO L85 PathProgramCache]: Analyzing trace with hash 49895967, now seen corresponding path program 1 times [2024-11-12 21:05:38,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:05:38,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940310234] [2024-11-12 21:05:38,067 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:05:38,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:05:38,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 21:05:38,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 21:05:38,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940310234] [2024-11-12 21:05:38,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940310234] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 21:05:38,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1363441528] [2024-11-12 21:05:38,103 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:05:38,103 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 21:05:38,105 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:05:38,107 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 21:05:38,109 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-12 21:05:38,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 21:05:38,142 INFO L256 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-12 21:05:38,143 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 21:05:38,166 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 21:05:38,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1363441528] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 21:05:38,180 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 21:05:38,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2024-11-12 21:05:38,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576804863] [2024-11-12 21:05:38,180 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 21:05:38,180 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-12 21:05:38,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 21:05:38,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 21:05:38,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 21:05:38,181 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) [2024-11-12 21:05:38,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 21:05:38,199 INFO L93 Difference]: Finished difference Result 116 states and 146 transitions. [2024-11-12 21:05:38,199 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 116 states and 146 transitions. [2024-11-12 21:05:38,200 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 56 [2024-11-12 21:05:38,201 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 116 states to 116 states and 146 transitions. [2024-11-12 21:05:38,201 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 64 [2024-11-12 21:05:38,201 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 64 [2024-11-12 21:05:38,201 INFO L73 IsDeterministic]: Start isDeterministic. Operand 116 states and 146 transitions. [2024-11-12 21:05:38,202 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-12 21:05:38,202 INFO L218 hiAutomatonCegarLoop]: Abstraction has 116 states and 146 transitions. [2024-11-12 21:05:38,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states and 146 transitions. [2024-11-12 21:05:38,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2024-11-12 21:05:38,204 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) [2024-11-12 21:05:38,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 146 transitions. [2024-11-12 21:05:38,205 INFO L240 hiAutomatonCegarLoop]: Abstraction has 116 states and 146 transitions. [2024-11-12 21:05:38,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 21:05:38,206 INFO L426 stractBuchiCegarLoop]: Abstraction has 116 states and 146 transitions. [2024-11-12 21:05:38,206 INFO L333 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2024-11-12 21:05:38,206 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 116 states and 146 transitions. [2024-11-12 21:05:38,207 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 56 [2024-11-12 21:05:38,207 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-12 21:05:38,207 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-12 21:05:38,208 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-12 21:05:38,208 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 21:05:38,208 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_~s__state~0#1, main_~s__hit~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;havoc main_#t~nondet4#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0;" "assume !false;" "assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2);" "assume 8466 == main_~s__state~0#1;" "assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2;" "assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8656;" [2024-11-12 21:05:38,208 INFO L749 eck$LassoCheckResult]: Loop: "assume !false;" "assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2);" "assume !(8466 == main_~s__state~0#1);" "assume !(8512 == main_~s__state~0#1);" "assume !(8640 == main_~s__state~0#1);" "assume 8656 == main_~s__state~0#1;" "assume !(2 == main_~blastFlag~0#1);" "assume !(4 == main_~blastFlag~0#1);" "assume !(5 == main_~blastFlag~0#1);" "assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8640;" "assume !false;" "assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2);" "assume !(8466 == main_~s__state~0#1);" "assume !(8512 == main_~s__state~0#1);" "assume 8640 == main_~s__state~0#1;" "assume !(3 == main_~blastFlag~0#1);" "assume !(0 != main_~s__hit~0#1);main_~s__state~0#1 := 8656;" [2024-11-12 21:05:38,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:05:38,209 INFO L85 PathProgramCache]: Analyzing trace with hash 1810723569, now seen corresponding path program 3 times [2024-11-12 21:05:38,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:05:38,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916984721] [2024-11-12 21:05:38,209 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:05:38,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:05:38,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:05:38,215 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 21:05:38,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:05:38,223 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 21:05:38,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:05:38,224 INFO L85 PathProgramCache]: Analyzing trace with hash 750960545, now seen corresponding path program 1 times [2024-11-12 21:05:38,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:05:38,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430914934] [2024-11-12 21:05:38,224 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:05:38,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:05:38,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 21:05:38,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 21:05:38,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430914934] [2024-11-12 21:05:38,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430914934] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 21:05:38,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [742814558] [2024-11-12 21:05:38,258 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:05:38,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 21:05:38,258 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:05:38,261 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 21:05:38,262 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-12 21:05:38,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 21:05:38,292 INFO L256 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-12 21:05:38,292 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 21:05:38,303 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 21:05:38,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [742814558] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 21:05:38,317 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 21:05:38,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 2 [2024-11-12 21:05:38,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556329726] [2024-11-12 21:05:38,317 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 21:05:38,317 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-12 21:05:38,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 21:05:38,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 21:05:38,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 21:05:38,318 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) [2024-11-12 21:05:38,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 21:05:38,325 INFO L93 Difference]: Finished difference Result 142 states and 175 transitions. [2024-11-12 21:05:38,325 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 142 states and 175 transitions. [2024-11-12 21:05:38,327 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 41 [2024-11-12 21:05:38,328 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 142 states to 137 states and 167 transitions. [2024-11-12 21:05:38,328 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 85 [2024-11-12 21:05:38,328 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 85 [2024-11-12 21:05:38,328 INFO L73 IsDeterministic]: Start isDeterministic. Operand 137 states and 167 transitions. [2024-11-12 21:05:38,329 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-12 21:05:38,329 INFO L218 hiAutomatonCegarLoop]: Abstraction has 137 states and 167 transitions. [2024-11-12 21:05:38,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states and 167 transitions. [2024-11-12 21:05:38,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 109. [2024-11-12 21:05:38,331 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) [2024-11-12 21:05:38,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 136 transitions. [2024-11-12 21:05:38,332 INFO L240 hiAutomatonCegarLoop]: Abstraction has 109 states and 136 transitions. [2024-11-12 21:05:38,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 21:05:38,333 INFO L426 stractBuchiCegarLoop]: Abstraction has 109 states and 136 transitions. [2024-11-12 21:05:38,333 INFO L333 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2024-11-12 21:05:38,333 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 109 states and 136 transitions. [2024-11-12 21:05:38,334 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 41 [2024-11-12 21:05:38,334 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-12 21:05:38,334 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-12 21:05:38,334 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-12 21:05:38,334 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 21:05:38,335 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_~s__state~0#1, main_~s__hit~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;havoc main_#t~nondet4#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0;" "assume !false;" "assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2);" "assume 8466 == main_~s__state~0#1;" "assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2;" "assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8656;" [2024-11-12 21:05:38,335 INFO L749 eck$LassoCheckResult]: Loop: "assume !false;" "assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2);" "assume !(8466 == main_~s__state~0#1);" "assume !(8512 == main_~s__state~0#1);" "assume !(8640 == main_~s__state~0#1);" "assume 8656 == main_~s__state~0#1;" "assume !(2 == main_~blastFlag~0#1);" "assume !(4 == main_~blastFlag~0#1);" "assume !(5 == main_~blastFlag~0#1);" "assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8640;" [2024-11-12 21:05:38,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:05:38,335 INFO L85 PathProgramCache]: Analyzing trace with hash 1810723569, now seen corresponding path program 4 times [2024-11-12 21:05:38,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:05:38,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197624062] [2024-11-12 21:05:38,336 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:05:38,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:05:38,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:05:38,341 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 21:05:38,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:05:38,344 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 21:05:38,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:05:38,345 INFO L85 PathProgramCache]: Analyzing trace with hash 1947655960, now seen corresponding path program 1 times [2024-11-12 21:05:38,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:05:38,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080218984] [2024-11-12 21:05:38,346 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:05:38,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:05:38,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:05:38,349 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 21:05:38,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:05:38,352 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 21:05:38,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:05:38,352 INFO L85 PathProgramCache]: Analyzing trace with hash 163931656, now seen corresponding path program 1 times [2024-11-12 21:05:38,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:05:38,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814303734] [2024-11-12 21:05:38,353 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:05:38,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:05:38,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 21:05:38,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 21:05:38,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814303734] [2024-11-12 21:05:38,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814303734] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 21:05:38,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [469153191] [2024-11-12 21:05:38,388 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:05:38,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 21:05:38,388 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:05:38,391 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 21:05:38,392 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-12 21:05:38,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 21:05:38,422 INFO L256 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-12 21:05:38,423 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 21:05:38,437 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 21:05:38,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [469153191] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 21:05:38,452 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 21:05:38,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2024-11-12 21:05:38,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485136842] [2024-11-12 21:05:38,452 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 21:05:38,501 INFO L204 LassoAnalysis]: Preferences: [2024-11-12 21:05:38,501 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-12 21:05:38,501 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-12 21:05:38,501 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-12 21:05:38,501 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-12 21:05:38,501 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:05:38,501 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-12 21:05:38,502 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-12 21:05:38,502 INFO L132 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration8_Loop [2024-11-12 21:05:38,502 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-12 21:05:38,502 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-12 21:05:38,502 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 21:05:38,511 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 21:05:38,515 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 21:05:38,584 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-12 21:05:38,585 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-12 21:05:38,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:05:38,585 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:05:38,587 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) [2024-11-12 21:05:38,589 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 [2024-11-12 21:05:38,590 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 21:05:38,590 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 21:05:38,614 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-12 21:05:38,614 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~blastFlag~0#1=7} Honda state: {ULTIMATE.start_main_~blastFlag~0#1=7} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-12 21:05:38,629 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 [2024-11-12 21:05:38,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:05:38,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:05:38,630 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) [2024-11-12 21:05:38,632 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 [2024-11-12 21:05:38,633 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 21:05:38,633 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 21:05:38,672 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2024-11-12 21:05:38,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:05:38,673 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:05:38,675 INFO L229 MonitoredProcess]: Starting monitored process 31 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) [2024-11-12 21:05:38,676 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2024-11-12 21:05:38,677 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-12 21:05:38,677 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 21:05:38,692 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-12 21:05:38,707 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2024-11-12 21:05:38,708 INFO L204 LassoAnalysis]: Preferences: [2024-11-12 21:05:38,709 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-12 21:05:38,709 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-12 21:05:38,709 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-12 21:05:38,709 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-12 21:05:38,709 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:05:38,709 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-12 21:05:38,709 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-12 21:05:38,709 INFO L132 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration8_Loop [2024-11-12 21:05:38,709 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-12 21:05:38,709 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-12 21:05:38,710 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 21:05:38,718 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 21:05:38,724 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 21:05:38,794 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-12 21:05:38,794 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-12 21:05:38,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:05:38,795 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:05:38,796 INFO L229 MonitoredProcess]: Starting monitored process 32 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) [2024-11-12 21:05:38,797 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2024-11-12 21:05:38,797 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 [2024-11-12 21:05:38,807 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 21:05:38,807 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-12 21:05:38,808 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 21:05:38,808 INFO L204 nArgumentSynthesizer]: 3 loop disjuncts [2024-11-12 21:05:38,808 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 21:05:38,809 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-12 21:05:38,809 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-12 21:05:38,811 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-12 21:05:38,826 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2024-11-12 21:05:38,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:05:38,826 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:05:38,828 INFO L229 MonitoredProcess]: Starting monitored process 33 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) [2024-11-12 21:05:38,829 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2024-11-12 21:05:38,830 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 [2024-11-12 21:05:38,842 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 21:05:38,843 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-12 21:05:38,843 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 21:05:38,843 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 21:05:38,843 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 21:05:38,844 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-12 21:05:38,844 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-12 21:05:38,846 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-12 21:05:38,849 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-12 21:05:38,849 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-12 21:05:38,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:05:38,849 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:05:38,851 INFO L229 MonitoredProcess]: Starting monitored process 34 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) [2024-11-12 21:05:38,853 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2024-11-12 21:05:38,853 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-12 21:05:38,853 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-12 21:05:38,853 INFO L474 LassoAnalysis]: Proved termination. [2024-11-12 21:05:38,853 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 [] [2024-11-12 21:05:38,864 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2024-11-12 21:05:38,865 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-12 21:05:38,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:05:38,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 21:05:38,889 INFO L256 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-12 21:05:38,889 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 21:05:38,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 21:05:38,901 INFO L256 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-12 21:05:38,902 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 21:05:38,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 21:05:38,923 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 [2024-11-12 21:05:38,923 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) [2024-11-12 21:05:38,941 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. [2024-11-12 21:05:38,942 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 [2024-11-12 21:05:38,942 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) [2024-11-12 21:05:38,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 38 transitions. [2024-11-12 21:05:38,942 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 38 transitions. Stem has 7 letters. Loop has 10 letters. [2024-11-12 21:05:38,943 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 21:05:38,943 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 38 transitions. Stem has 17 letters. Loop has 10 letters. [2024-11-12 21:05:38,943 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 21:05:38,943 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 38 transitions. Stem has 7 letters. Loop has 20 letters. [2024-11-12 21:05:38,943 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 21:05:38,943 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 148 states and 178 transitions. [2024-11-12 21:05:38,944 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 41 [2024-11-12 21:05:38,945 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 148 states to 109 states and 132 transitions. [2024-11-12 21:05:38,945 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 57 [2024-11-12 21:05:38,945 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 57 [2024-11-12 21:05:38,945 INFO L73 IsDeterministic]: Start isDeterministic. Operand 109 states and 132 transitions. [2024-11-12 21:05:38,945 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-12 21:05:38,947 INFO L218 hiAutomatonCegarLoop]: Abstraction has 109 states and 132 transitions. [2024-11-12 21:05:38,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states and 132 transitions. [2024-11-12 21:05:38,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2024-11-12 21:05:38,949 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) [2024-11-12 21:05:38,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 132 transitions. [2024-11-12 21:05:38,949 INFO L240 hiAutomatonCegarLoop]: Abstraction has 109 states and 132 transitions. [2024-11-12 21:05:38,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 21:05:38,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 21:05:38,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 21:05:38,950 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) [2024-11-12 21:05:38,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 21:05:38,964 INFO L93 Difference]: Finished difference Result 92 states and 106 transitions. [2024-11-12 21:05:38,964 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 92 states and 106 transitions. [2024-11-12 21:05:38,965 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 21 [2024-11-12 21:05:38,965 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 92 states to 62 states and 71 transitions. [2024-11-12 21:05:38,965 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 42 [2024-11-12 21:05:38,966 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 46 [2024-11-12 21:05:38,966 INFO L73 IsDeterministic]: Start isDeterministic. Operand 62 states and 71 transitions. [2024-11-12 21:05:38,966 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-12 21:05:38,966 INFO L218 hiAutomatonCegarLoop]: Abstraction has 62 states and 71 transitions. [2024-11-12 21:05:38,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states and 71 transitions. [2024-11-12 21:05:38,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2024-11-12 21:05:38,967 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) [2024-11-12 21:05:38,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 71 transitions. [2024-11-12 21:05:38,967 INFO L240 hiAutomatonCegarLoop]: Abstraction has 62 states and 71 transitions. [2024-11-12 21:05:38,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 21:05:38,968 INFO L426 stractBuchiCegarLoop]: Abstraction has 62 states and 71 transitions. [2024-11-12 21:05:38,968 INFO L333 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2024-11-12 21:05:38,968 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 62 states and 71 transitions. [2024-11-12 21:05:38,968 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 21 [2024-11-12 21:05:38,968 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-12 21:05:38,968 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-12 21:05:38,969 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 21:05:38,969 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 21:05:38,969 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_~s__state~0#1, main_~s__hit~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;havoc main_#t~nondet4#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0;" "assume !false;" "assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2);" "assume 8466 == main_~s__state~0#1;" "assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2;" "assume !(0 != main_~s__hit~0#1);main_~s__state~0#1 := 8512;" "assume !false;" "assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2);" "assume !(8466 == main_~s__state~0#1);" "assume 8512 == main_~s__state~0#1;" [2024-11-12 21:05:38,969 INFO L749 eck$LassoCheckResult]: Loop: "havoc main_#t~nondet5#1;main_~tmp___1~0#1 := main_#t~nondet5#1;" "assume 0 != main_~tmp___1~0#1;main_~s__state~0#1 := 8466;" "assume !false;" "assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2);" "assume 8466 == main_~s__state~0#1;" "assume !(0 == main_~blastFlag~0#1);" "assume !(0 != main_~s__hit~0#1);main_~s__state~0#1 := 8512;" "assume !false;" "assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2);" "assume !(8466 == main_~s__state~0#1);" "assume 8512 == main_~s__state~0#1;" [2024-11-12 21:05:38,969 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:05:38,969 INFO L85 PathProgramCache]: Analyzing trace with hash 21626939, now seen corresponding path program 1 times [2024-11-12 21:05:38,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:05:38,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553784910] [2024-11-12 21:05:38,970 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:05:38,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:05:38,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:05:38,976 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 21:05:38,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:05:38,982 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 21:05:38,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:05:38,984 INFO L85 PathProgramCache]: Analyzing trace with hash 1294878776, now seen corresponding path program 1 times [2024-11-12 21:05:38,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:05:38,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137521137] [2024-11-12 21:05:38,984 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:05:38,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:05:38,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:05:38,988 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 21:05:38,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:05:38,991 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 21:05:38,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:05:38,992 INFO L85 PathProgramCache]: Analyzing trace with hash 937672638, now seen corresponding path program 1 times [2024-11-12 21:05:38,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:05:38,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621632865] [2024-11-12 21:05:38,992 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:05:38,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:05:38,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:05:38,996 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 21:05:38,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:05:39,000 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 21:05:39,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:05:39,175 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 21:05:39,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:05:39,207 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 12.11 09:05:39 BoogieIcfgContainer [2024-11-12 21:05:39,207 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-12 21:05:39,207 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-12 21:05:39,208 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-12 21:05:39,208 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-12 21:05:39,208 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 09:05:34" (3/4) ... [2024-11-12 21:05:39,210 INFO L139 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-12 21:05:39,253 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-12 21:05:39,254 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-12 21:05:39,254 INFO L158 Benchmark]: Toolchain (without parser) took 5357.38ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 113.8MB in the beginning and 64.6MB in the end (delta: 49.2MB). Peak memory consumption was 83.0MB. Max. memory is 16.1GB. [2024-11-12 21:05:39,254 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 100.7MB. Free memory is still 66.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-12 21:05:39,255 INFO L158 Benchmark]: CACSL2BoogieTranslator took 285.19ms. Allocated memory is still 159.4MB. Free memory was 113.2MB in the beginning and 100.6MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-12 21:05:39,255 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.80ms. Allocated memory is still 159.4MB. Free memory was 100.6MB in the beginning and 99.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-12 21:05:39,255 INFO L158 Benchmark]: Boogie Preprocessor took 36.63ms. Allocated memory is still 159.4MB. Free memory was 99.1MB in the beginning and 97.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-12 21:05:39,255 INFO L158 Benchmark]: RCFGBuilder took 427.03ms. Allocated memory is still 159.4MB. Free memory was 97.7MB in the beginning and 123.7MB in the end (delta: -26.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-12 21:05:39,255 INFO L158 Benchmark]: BuchiAutomizer took 4529.69ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 123.7MB in the beginning and 66.7MB in the end (delta: 57.0MB). Peak memory consumption was 93.5MB. Max. memory is 16.1GB. [2024-11-12 21:05:39,256 INFO L158 Benchmark]: Witness Printer took 46.20ms. Allocated memory is still 192.9MB. Free memory was 66.7MB in the beginning and 64.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-12 21:05:39,257 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 100.7MB. Free memory is still 66.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 285.19ms. Allocated memory is still 159.4MB. Free memory was 113.2MB in the beginning and 100.6MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.80ms. Allocated memory is still 159.4MB. Free memory was 100.6MB in the beginning and 99.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.63ms. Allocated memory is still 159.4MB. Free memory was 99.1MB in the beginning and 97.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 427.03ms. Allocated memory is still 159.4MB. Free memory was 97.7MB in the beginning and 123.7MB in the end (delta: -26.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 4529.69ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 123.7MB in the beginning and 66.7MB in the end (delta: 57.0MB). Peak memory consumption was 93.5MB. Max. memory is 16.1GB. * Witness Printer took 46.20ms. Allocated memory is still 192.9MB. Free memory was 66.7MB in the beginning and 64.6MB 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 12 terminating modules (7 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. 7 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 62 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.4s and 9 iterations. TraceHistogramMax:2. Analysis of lassos took 3.1s. Construction of modules took 0.3s. Büchi inclusion checks took 0.8s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 12. Automata minimization 0.1s AutomataMinimizationTime, 12 MinimizatonAttempts, 125 StatesRemovedByMinimization, 7 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, 201 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 196 mSDsluCounter, 505 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 193 mSDsCounter, 38 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 307 IncrementalHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 38 mSolverCounterUnsat, 312 mSDtfsCounter, 307 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI3 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: 16ms VariablesStem: 0 VariablesLoop: 1 DisjunctsStem: 1 DisjunctsLoop: 3 SupportingInvariants: 0 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 3 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s 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! [2024-11-12 21:05:39,278 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2024-11-12 21:05:39,483 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2024-11-12 21:05:39,679 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2024-11-12 21:05:39,879 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2024-11-12 21:05:40,079 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2024-11-12 21:05:40,280 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-11-12 21:05:40,481 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-12 21:05:40,680 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-12 21:05:40,881 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)