./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 3061b6dc 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-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 14:26:55,445 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 14:26:55,515 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-19 14:26:55,521 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 14:26:55,523 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 14:26:55,551 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 14:26:55,552 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 14:26:55,552 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 14:26:55,553 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 14:26:55,553 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 14:26:55,554 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 14:26:55,554 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 14:26:55,555 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 14:26:55,555 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-19 14:26:55,556 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-19 14:26:55,556 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-19 14:26:55,557 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-19 14:26:55,557 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-19 14:26:55,557 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-19 14:26:55,557 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 14:26:55,558 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-19 14:26:55,558 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 14:26:55,558 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 14:26:55,559 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 14:26:55,559 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 14:26:55,559 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-19 14:26:55,560 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-19 14:26:55,560 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-19 14:26:55,560 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 14:26:55,560 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 14:26:55,561 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 14:26:55,561 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 14:26:55,561 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-19 14:26:55,562 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 14:26:55,562 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 14:26:55,562 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 14:26:55,563 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 14:26:55,563 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 14:26:55,563 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-19 14:26:55,564 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 153b6d90c91de27e09ed3c918b0b1be779b258e790f6fc392e7d5f390719c2db [2024-11-19 14:26:55,840 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 14:26:55,877 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 14:26:55,880 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 14:26:55,881 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 14:26:55,882 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 14:26:55,883 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/openssl-simplified/s3_srvr_1b.cil.c [2024-11-19 14:26:57,248 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 14:26:57,450 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 14:26:57,450 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/openssl-simplified/s3_srvr_1b.cil.c [2024-11-19 14:26:57,457 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13bc093b8/3fa305c5c93c4fe491c878d02b8b2429/FLAG0c78d2e4f [2024-11-19 14:26:57,472 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13bc093b8/3fa305c5c93c4fe491c878d02b8b2429 [2024-11-19 14:26:57,475 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 14:26:57,476 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 14:26:57,479 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 14:26:57,480 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 14:26:57,488 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 14:26:57,488 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:26:57" (1/1) ... [2024-11-19 14:26:57,490 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17d93e5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:26:57, skipping insertion in model container [2024-11-19 14:26:57,491 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:26:57" (1/1) ... [2024-11-19 14:26:57,518 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 14:26:57,769 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 14:26:57,782 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 14:26:57,802 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 14:26:57,820 INFO L204 MainTranslator]: Completed translation [2024-11-19 14:26:57,820 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:26:57 WrapperNode [2024-11-19 14:26:57,821 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 14:26:57,822 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 14:26:57,822 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 14:26:57,822 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 14:26:57,829 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:26:57" (1/1) ... [2024-11-19 14:26:57,836 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:26:57" (1/1) ... [2024-11-19 14:26:57,851 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 74 [2024-11-19 14:26:57,852 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 14:26:57,852 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 14:26:57,852 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 14:26:57,852 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 14:26:57,860 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:26:57" (1/1) ... [2024-11-19 14:26:57,860 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:26:57" (1/1) ... [2024-11-19 14:26:57,861 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:26:57" (1/1) ... [2024-11-19 14:26:57,873 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-19 14:26:57,873 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:26:57" (1/1) ... [2024-11-19 14:26:57,873 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:26:57" (1/1) ... [2024-11-19 14:26:57,876 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:26:57" (1/1) ... [2024-11-19 14:26:57,881 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:26:57" (1/1) ... [2024-11-19 14:26:57,882 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:26:57" (1/1) ... [2024-11-19 14:26:57,882 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:26:57" (1/1) ... [2024-11-19 14:26:57,884 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 14:26:57,885 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 14:26:57,885 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 14:26:57,885 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 14:26:57,886 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:26:57" (1/1) ... [2024-11-19 14:26:57,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:26:57,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:26:57,934 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) [2024-11-19 14:26:57,940 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 [2024-11-19 14:26:57,989 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 14:26:57,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 14:26:57,990 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 14:26:57,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 14:26:58,049 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 14:26:58,051 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 14:26:58,227 INFO L? ?]: Removed 15 outVars from TransFormulas that were not future-live. [2024-11-19 14:26:58,229 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 14:26:58,246 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 14:26:58,247 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-19 14:26:58,247 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:26:58 BoogieIcfgContainer [2024-11-19 14:26:58,248 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 14:26:58,249 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-19 14:26:58,249 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-19 14:26:58,252 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-19 14:26:58,253 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-19 14:26:58,255 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 02:26:57" (1/3) ... [2024-11-19 14:26:58,255 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2d2d45c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 02:26:58, skipping insertion in model container [2024-11-19 14:26:58,256 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-19 14:26:58,256 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:26:57" (2/3) ... [2024-11-19 14:26:58,256 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2d2d45c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 02:26:58, skipping insertion in model container [2024-11-19 14:26:58,256 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-19 14:26:58,256 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:26:58" (3/3) ... [2024-11-19 14:26:58,257 INFO L332 chiAutomizerObserver]: Analyzing ICFG s3_srvr_1b.cil.c [2024-11-19 14:26:58,318 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-19 14:26:58,318 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-19 14:26:58,318 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-19 14:26:58,319 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-19 14:26:58,319 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-19 14:26:58,319 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-19 14:26:58,320 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-19 14:26:58,320 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-19 14:26:58,324 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) [2024-11-19 14:26:58,341 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 16 [2024-11-19 14:26:58,342 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-19 14:26:58,343 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-19 14:26:58,349 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-19 14:26:58,350 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2024-11-19 14:26:58,350 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-19 14:26:58,350 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) [2024-11-19 14:26:58,353 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 16 [2024-11-19 14:26:58,353 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-19 14:26:58,353 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-19 14:26:58,354 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-19 14:26:58,354 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2024-11-19 14:26:58,361 INFO L745 eck$LassoCheckResult]: Stem: 20#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 10#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_~s__state~0#1, main_~s__hit~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;havoc main_#t~nondet4#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0; 6#$Ultimate##5true [2024-11-19 14:26:58,362 INFO L747 eck$LassoCheckResult]: Loop: 6#$Ultimate##5true assume !false; 3#L30true assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 11#L36true assume 8466 == main_~s__state~0#1; 7#$Ultimate##17true assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2; 17#L69-1true assume !(0 != main_~s__hit~0#1);main_~s__state~0#1 := 8512; 6#$Ultimate##5true [2024-11-19 14:26:58,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:26:58,368 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-11-19 14:26:58,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:26:58,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351950999] [2024-11-19 14:26:58,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:26:58,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:26:58,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:26:58,469 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 14:26:58,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:26:58,502 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 14:26:58,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:26:58,505 INFO L85 PathProgramCache]: Analyzing trace with hash 39284085, now seen corresponding path program 1 times [2024-11-19 14:26:58,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:26:58,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733380218] [2024-11-19 14:26:58,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:26:58,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:26:58,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:26:58,522 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 14:26:58,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:26:58,531 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 14:26:58,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:26:58,537 INFO L85 PathProgramCache]: Analyzing trace with hash 1810723571, now seen corresponding path program 1 times [2024-11-19 14:26:58,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:26:58,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560731737] [2024-11-19 14:26:58,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:26:58,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:26:58,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:26:58,550 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 14:26:58,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:26:58,562 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 14:26:58,661 INFO L204 LassoAnalysis]: Preferences: [2024-11-19 14:26:58,661 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-19 14:26:58,662 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-19 14:26:58,662 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-19 14:26:58,662 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-19 14:26:58,662 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:26:58,662 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-19 14:26:58,662 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-19 14:26:58,662 INFO L132 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration1_Loop [2024-11-19 14:26:58,662 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-19 14:26:58,663 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-19 14:26:58,678 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:26:58,691 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:26:58,702 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:26:58,774 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-19 14:26:58,774 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-19 14:26:58,776 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:26:58,777 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:26:58,778 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) [2024-11-19 14:26:58,780 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 [2024-11-19 14:26:58,785 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-19 14:26:58,786 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 14:26:58,820 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-19 14:26:58,820 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: [] [2024-11-19 14:26:58,836 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 [2024-11-19 14:26:58,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:26:58,837 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:26:58,838 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) [2024-11-19 14:26:58,839 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 [2024-11-19 14:26:58,841 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-19 14:26:58,841 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 14:26:58,869 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2024-11-19 14:26:58,870 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:26:58,870 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:26:58,872 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) [2024-11-19 14:26:58,874 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 [2024-11-19 14:26:58,875 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-19 14:26:58,875 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 14:26:58,899 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-19 14:26:58,914 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2024-11-19 14:26:58,915 INFO L204 LassoAnalysis]: Preferences: [2024-11-19 14:26:58,915 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-19 14:26:58,915 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-19 14:26:58,915 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-19 14:26:58,915 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-19 14:26:58,916 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:26:58,916 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-19 14:26:58,916 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-19 14:26:58,916 INFO L132 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration1_Loop [2024-11-19 14:26:58,916 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-19 14:26:58,916 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-19 14:26:58,918 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:26:58,926 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:26:58,935 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:26:58,999 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-19 14:26:59,004 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-19 14:26:59,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:26:59,006 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:26:59,008 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) [2024-11-19 14:26:59,016 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 [2024-11-19 14:26:59,016 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 [2024-11-19 14:26:59,027 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-19 14:26:59,028 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-19 14:26:59,028 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-19 14:26:59,028 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-19 14:26:59,028 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-19 14:26:59,030 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-19 14:26:59,030 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-19 14:26:59,035 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-19 14:26:59,048 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 [2024-11-19 14:26:59,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:26:59,048 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:26:59,050 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) [2024-11-19 14:26:59,051 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 [2024-11-19 14:26:59,052 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 [2024-11-19 14:26:59,062 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-19 14:26:59,062 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-19 14:26:59,062 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-19 14:26:59,062 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-19 14:26:59,063 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-19 14:26:59,064 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-19 14:26:59,064 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-19 14:26:59,067 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-19 14:26:59,071 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-19 14:26:59,071 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-19 14:26:59,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:26:59,073 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:26:59,093 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) [2024-11-19 14:26:59,095 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 [2024-11-19 14:26:59,096 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-19 14:26:59,096 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-19 14:26:59,096 INFO L474 LassoAnalysis]: Proved termination. [2024-11-19 14:26:59,097 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 [] [2024-11-19 14:26:59,109 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 [2024-11-19 14:26:59,113 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-19 14:26:59,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:26:59,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:26:59,157 INFO L255 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-19 14:26:59,157 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:26:59,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:26:59,169 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 14:26:59,170 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:26:59,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:26:59,259 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 [2024-11-19 14:26:59,261 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) [2024-11-19 14:26:59,334 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. [2024-11-19 14:26:59,336 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 [2024-11-19 14:26:59,342 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) [2024-11-19 14:26:59,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 41 transitions. [2024-11-19 14:26:59,344 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 41 transitions. Stem has 2 letters. Loop has 5 letters. [2024-11-19 14:26:59,345 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 14:26:59,346 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 41 transitions. Stem has 7 letters. Loop has 5 letters. [2024-11-19 14:26:59,347 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 14:26:59,347 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 41 transitions. Stem has 2 letters. Loop has 10 letters. [2024-11-19 14:26:59,347 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 14:26:59,348 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 51 states and 82 transitions. [2024-11-19 14:26:59,352 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 16 [2024-11-19 14:26:59,360 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 51 states to 38 states and 59 transitions. [2024-11-19 14:26:59,361 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2024-11-19 14:26:59,362 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2024-11-19 14:26:59,362 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 59 transitions. [2024-11-19 14:26:59,362 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-19 14:26:59,363 INFO L218 hiAutomatonCegarLoop]: Abstraction has 38 states and 59 transitions. [2024-11-19 14:26:59,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states and 59 transitions. [2024-11-19 14:26:59,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 36. [2024-11-19 14:26:59,393 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) [2024-11-19 14:26:59,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 57 transitions. [2024-11-19 14:26:59,395 INFO L240 hiAutomatonCegarLoop]: Abstraction has 36 states and 57 transitions. [2024-11-19 14:26:59,395 INFO L425 stractBuchiCegarLoop]: Abstraction has 36 states and 57 transitions. [2024-11-19 14:26:59,395 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-19 14:26:59,395 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 36 states and 57 transitions. [2024-11-19 14:26:59,399 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 16 [2024-11-19 14:26:59,399 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-19 14:26:59,399 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-19 14:26:59,399 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-19 14:26:59,400 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2024-11-19 14:26:59,400 INFO L745 eck$LassoCheckResult]: Stem: 155#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 147#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_~s__state~0#1, main_~s__hit~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;havoc main_#t~nondet4#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0; 148#$Ultimate##5 assume !false; 120#L30 [2024-11-19 14:26:59,400 INFO L747 eck$LassoCheckResult]: Loop: 120#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 121#L36 assume 8466 == main_~s__state~0#1; 134#$Ultimate##17 assume !(0 == main_~blastFlag~0#1); 135#L69-1 assume !(0 != main_~s__hit~0#1);main_~s__state~0#1 := 8512; 132#$Ultimate##5 assume !false; 120#L30 [2024-11-19 14:26:59,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:26:59,402 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2024-11-19 14:26:59,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:26:59,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067210676] [2024-11-19 14:26:59,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:26:59,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:26:59,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:26:59,413 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 14:26:59,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:26:59,418 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 14:26:59,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:26:59,419 INFO L85 PathProgramCache]: Analyzing trace with hash 44013377, now seen corresponding path program 1 times [2024-11-19 14:26:59,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:26:59,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885345257] [2024-11-19 14:26:59,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:26:59,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:26:59,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:26:59,424 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 14:26:59,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:26:59,432 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 14:26:59,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:26:59,434 INFO L85 PathProgramCache]: Analyzing trace with hash 297857786, now seen corresponding path program 1 times [2024-11-19 14:26:59,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:26:59,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895563986] [2024-11-19 14:26:59,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:26:59,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:26:59,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:26:59,509 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:26:59,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:26:59,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895563986] [2024-11-19 14:26:59,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895563986] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:26:59,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:26:59,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 14:26:59,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941876750] [2024-11-19 14:26:59,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:26:59,561 INFO L204 LassoAnalysis]: Preferences: [2024-11-19 14:26:59,562 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-19 14:26:59,562 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-19 14:26:59,562 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-19 14:26:59,562 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-19 14:26:59,562 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:26:59,562 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-19 14:26:59,563 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-19 14:26:59,563 INFO L132 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration2_Loop [2024-11-19 14:26:59,563 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-19 14:26:59,563 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-19 14:26:59,564 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:26:59,573 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:26:59,577 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:26:59,641 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-19 14:26:59,642 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-19 14:26:59,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:26:59,642 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:26:59,644 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-19 14:26:59,667 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-11-19 14:26:59,678 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-19 14:26:59,678 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 14:26:59,689 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2024-11-19 14:26:59,721 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-19 14:26:59,721 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~blastFlag~0#1=-1} Honda state: {ULTIMATE.start_main_~blastFlag~0#1=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-19 14:26:59,736 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2024-11-19 14:26:59,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:26:59,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:26:59,738 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) [2024-11-19 14:26:59,740 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 [2024-11-19 14:26:59,741 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-19 14:26:59,741 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 14:26:59,754 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-19 14:26:59,755 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: [] [2024-11-19 14:26:59,771 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2024-11-19 14:26:59,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:26:59,772 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:26:59,774 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) [2024-11-19 14:26:59,775 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 [2024-11-19 14:26:59,776 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-19 14:26:59,776 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 14:26:59,799 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 [2024-11-19 14:26:59,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:26:59,799 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:26:59,800 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) [2024-11-19 14:26:59,801 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 [2024-11-19 14:26:59,803 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-19 14:26:59,803 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 14:26:59,816 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-19 14:26:59,827 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2024-11-19 14:26:59,827 INFO L204 LassoAnalysis]: Preferences: [2024-11-19 14:26:59,827 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-19 14:26:59,827 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-19 14:26:59,827 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-19 14:26:59,827 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-19 14:26:59,827 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:26:59,827 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-19 14:26:59,827 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-19 14:26:59,828 INFO L132 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration2_Loop [2024-11-19 14:26:59,828 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-19 14:26:59,828 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-19 14:26:59,829 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:26:59,837 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:26:59,841 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:26:59,891 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-19 14:26:59,892 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-19 14:26:59,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:26:59,892 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:26:59,894 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) [2024-11-19 14:26:59,896 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 [2024-11-19 14:26:59,898 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 [2024-11-19 14:26:59,911 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-19 14:26:59,912 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-19 14:26:59,912 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-19 14:26:59,912 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-11-19 14:26:59,912 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-19 14:26:59,913 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2024-11-19 14:26:59,914 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-19 14:26:59,918 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-19 14:26:59,933 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 [2024-11-19 14:26:59,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:26:59,934 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:26:59,937 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-19 14:26:59,938 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-11-19 14:26:59,940 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 [2024-11-19 14:26:59,953 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-19 14:26:59,953 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-19 14:26:59,953 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-19 14:26:59,953 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-19 14:26:59,953 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-19 14:26:59,954 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-19 14:26:59,954 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-19 14:26:59,955 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-19 14:26:59,970 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2024-11-19 14:26:59,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:26:59,971 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:26:59,972 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) [2024-11-19 14:26:59,975 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 [2024-11-19 14:26:59,977 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 [2024-11-19 14:26:59,987 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-19 14:26:59,987 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-19 14:26:59,987 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-19 14:26:59,987 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-19 14:26:59,987 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-19 14:26:59,988 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-19 14:26:59,988 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-19 14:26:59,990 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-19 14:26:59,992 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-19 14:26:59,992 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-19 14:26:59,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:26:59,993 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:26:59,994 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) [2024-11-19 14:26:59,994 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 [2024-11-19 14:26:59,995 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-19 14:26:59,995 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-19 14:26:59,995 INFO L474 LassoAnalysis]: Proved termination. [2024-11-19 14:26:59,995 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 [] [2024-11-19 14:27:00,006 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2024-11-19 14:27:00,007 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-19 14:27:00,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:27:00,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:27:00,027 INFO L255 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-19 14:27:00,028 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:27:00,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:27:00,042 INFO L255 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 14:27:00,043 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:27:00,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:27:00,075 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 [2024-11-19 14:27:00,075 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) [2024-11-19 14:27:00,106 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. [2024-11-19 14:27:00,107 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 [2024-11-19 14:27:00,107 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) [2024-11-19 14:27:00,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2024-11-19 14:27:00,108 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 3 letters. Loop has 5 letters. [2024-11-19 14:27:00,108 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 14:27:00,108 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 8 letters. Loop has 5 letters. [2024-11-19 14:27:00,109 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 14:27:00,109 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 3 letters. Loop has 10 letters. [2024-11-19 14:27:00,109 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 14:27:00,109 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 72 states and 109 transitions. [2024-11-19 14:27:00,112 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 16 [2024-11-19 14:27:00,113 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 72 states to 61 states and 97 transitions. [2024-11-19 14:27:00,113 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 25 [2024-11-19 14:27:00,114 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 27 [2024-11-19 14:27:00,114 INFO L73 IsDeterministic]: Start isDeterministic. Operand 61 states and 97 transitions. [2024-11-19 14:27:00,114 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-19 14:27:00,114 INFO L218 hiAutomatonCegarLoop]: Abstraction has 61 states and 97 transitions. [2024-11-19 14:27:00,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states and 97 transitions. [2024-11-19 14:27:00,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 54. [2024-11-19 14:27:00,117 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) [2024-11-19 14:27:00,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 86 transitions. [2024-11-19 14:27:00,118 INFO L240 hiAutomatonCegarLoop]: Abstraction has 54 states and 86 transitions. [2024-11-19 14:27:00,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:27:00,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 14:27:00,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 14:27:00,122 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) [2024-11-19 14:27:00,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 14:27:00,149 INFO L93 Difference]: Finished difference Result 90 states and 128 transitions. [2024-11-19 14:27:00,149 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 90 states and 128 transitions. [2024-11-19 14:27:00,151 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 30 [2024-11-19 14:27:00,152 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 90 states to 87 states and 125 transitions. [2024-11-19 14:27:00,153 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 38 [2024-11-19 14:27:00,153 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 38 [2024-11-19 14:27:00,153 INFO L73 IsDeterministic]: Start isDeterministic. Operand 87 states and 125 transitions. [2024-11-19 14:27:00,153 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-19 14:27:00,153 INFO L218 hiAutomatonCegarLoop]: Abstraction has 87 states and 125 transitions. [2024-11-19 14:27:00,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states and 125 transitions. [2024-11-19 14:27:00,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 85. [2024-11-19 14:27:00,158 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) [2024-11-19 14:27:00,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 123 transitions. [2024-11-19 14:27:00,160 INFO L240 hiAutomatonCegarLoop]: Abstraction has 85 states and 123 transitions. [2024-11-19 14:27:00,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 14:27:00,163 INFO L425 stractBuchiCegarLoop]: Abstraction has 85 states and 123 transitions. [2024-11-19 14:27:00,163 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-19 14:27:00,163 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 85 states and 123 transitions. [2024-11-19 14:27:00,165 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 30 [2024-11-19 14:27:00,165 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-19 14:27:00,165 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-19 14:27:00,165 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-19 14:27:00,165 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2024-11-19 14:27:00,166 INFO L745 eck$LassoCheckResult]: Stem: 461#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 448#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_~s__state~0#1, main_~s__hit~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;havoc main_#t~nondet4#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0; 449#$Ultimate##5 assume !false; 421#L30 [2024-11-19 14:27:00,166 INFO L747 eck$LassoCheckResult]: Loop: 421#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 422#L36 assume !(8466 == main_~s__state~0#1); 445#L41 assume 8512 == main_~s__state~0#1; 425#main_switch_1_8512#1 havoc main_#t~nondet5#1;main_~tmp___1~0#1 := main_#t~nondet5#1; 426#L81 assume 0 != main_~tmp___1~0#1;main_~s__state~0#1 := 8466; 433#$Ultimate##5 assume !false; 421#L30 [2024-11-19 14:27:00,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:27:00,166 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 2 times [2024-11-19 14:27:00,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:27:00,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283611088] [2024-11-19 14:27:00,167 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 14:27:00,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:27:00,180 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 14:27:00,183 INFO L228 tOrderPrioritization]: Conjunction of SSA is sat [2024-11-19 14:27:00,183 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 14:27:00,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:27:00,191 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 14:27:00,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:27:00,193 INFO L85 PathProgramCache]: Analyzing trace with hash 1365729718, now seen corresponding path program 1 times [2024-11-19 14:27:00,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:27:00,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323693466] [2024-11-19 14:27:00,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:27:00,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:27:00,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:27:00,198 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 14:27:00,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:27:00,208 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 14:27:00,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:27:00,209 INFO L85 PathProgramCache]: Analyzing trace with hash 644971805, now seen corresponding path program 1 times [2024-11-19 14:27:00,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:27:00,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469907874] [2024-11-19 14:27:00,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:27:00,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:27:00,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:27:00,252 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:27:00,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:27:00,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469907874] [2024-11-19 14:27:00,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469907874] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:27:00,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:27:00,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 14:27:00,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791374900] [2024-11-19 14:27:00,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:27:00,287 INFO L204 LassoAnalysis]: Preferences: [2024-11-19 14:27:00,287 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-19 14:27:00,287 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-19 14:27:00,287 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-19 14:27:00,287 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-19 14:27:00,287 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:27:00,288 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-19 14:27:00,288 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-19 14:27:00,288 INFO L132 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration3_Loop [2024-11-19 14:27:00,288 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-19 14:27:00,288 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-19 14:27:00,289 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:27:00,291 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:27:00,294 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:27:00,319 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-19 14:27:00,319 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-19 14:27:00,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:27:00,319 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:27:00,321 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) [2024-11-19 14:27:00,322 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 [2024-11-19 14:27:00,324 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-19 14:27:00,324 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 14:27:00,340 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-19 14:27:00,340 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: [] [2024-11-19 14:27:00,355 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 [2024-11-19 14:27:00,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:27:00,356 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:27:00,357 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) [2024-11-19 14:27:00,358 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 [2024-11-19 14:27:00,360 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-19 14:27:00,361 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 14:27:00,380 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-19 14:27:00,381 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~blastFlag~0#1=2} Honda state: {ULTIMATE.start_main_~blastFlag~0#1=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-19 14:27:00,391 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 [2024-11-19 14:27:00,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:27:00,392 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:27:00,392 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-19 14:27:00,393 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-11-19 14:27:00,394 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-19 14:27:00,394 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 14:27:00,417 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2024-11-19 14:27:00,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:27:00,418 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:27:00,419 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) [2024-11-19 14:27:00,420 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 [2024-11-19 14:27:00,421 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-19 14:27:00,421 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 14:27:00,434 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-19 14:27:00,449 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 [2024-11-19 14:27:00,450 INFO L204 LassoAnalysis]: Preferences: [2024-11-19 14:27:00,450 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-19 14:27:00,450 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-19 14:27:00,450 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-19 14:27:00,450 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-19 14:27:00,450 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:27:00,450 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-19 14:27:00,450 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-19 14:27:00,450 INFO L132 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration3_Loop [2024-11-19 14:27:00,450 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-19 14:27:00,450 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-19 14:27:00,451 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:27:00,456 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:27:00,462 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:27:00,486 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-19 14:27:00,487 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-19 14:27:00,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:27:00,487 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:27:00,489 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) [2024-11-19 14:27:00,491 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 [2024-11-19 14:27:00,493 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 [2024-11-19 14:27:00,505 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-19 14:27:00,505 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-19 14:27:00,505 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-19 14:27:00,505 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-19 14:27:00,505 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-19 14:27:00,506 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-19 14:27:00,506 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-19 14:27:00,508 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-19 14:27:00,525 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 [2024-11-19 14:27:00,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:27:00,528 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:27:00,530 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) [2024-11-19 14:27:00,531 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 [2024-11-19 14:27:00,532 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 [2024-11-19 14:27:00,542 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-19 14:27:00,543 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-19 14:27:00,543 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-19 14:27:00,543 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-19 14:27:00,543 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-19 14:27:00,544 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-19 14:27:00,544 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-19 14:27:00,546 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-19 14:27:00,549 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-19 14:27:00,549 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-19 14:27:00,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:27:00,550 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:27:00,551 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) [2024-11-19 14:27:00,553 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 [2024-11-19 14:27:00,553 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-19 14:27:00,553 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-19 14:27:00,553 INFO L474 LassoAnalysis]: Proved termination. [2024-11-19 14:27:00,553 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 [] [2024-11-19 14:27:00,564 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 [2024-11-19 14:27:00,565 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-19 14:27:00,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:27:00,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:27:00,591 INFO L255 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-19 14:27:00,592 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:27:00,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:27:00,603 INFO L255 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 14:27:00,603 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:27:00,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:27:00,634 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 [2024-11-19 14:27:00,634 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) [2024-11-19 14:27:00,736 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. [2024-11-19 14:27:00,737 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 [2024-11-19 14:27:00,737 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) [2024-11-19 14:27:00,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 46 transitions. [2024-11-19 14:27:00,738 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 46 transitions. Stem has 3 letters. Loop has 6 letters. [2024-11-19 14:27:00,738 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 14:27:00,738 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 46 transitions. Stem has 9 letters. Loop has 6 letters. [2024-11-19 14:27:00,738 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 14:27:00,738 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 46 transitions. Stem has 3 letters. Loop has 12 letters. [2024-11-19 14:27:00,739 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 14:27:00,739 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 255 states and 373 transitions. [2024-11-19 14:27:00,742 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 52 [2024-11-19 14:27:00,745 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 255 states to 254 states and 372 transitions. [2024-11-19 14:27:00,745 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 69 [2024-11-19 14:27:00,746 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 72 [2024-11-19 14:27:00,746 INFO L73 IsDeterministic]: Start isDeterministic. Operand 254 states and 372 transitions. [2024-11-19 14:27:00,746 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-19 14:27:00,746 INFO L218 hiAutomatonCegarLoop]: Abstraction has 254 states and 372 transitions. [2024-11-19 14:27:00,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states and 372 transitions. [2024-11-19 14:27:00,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 199. [2024-11-19 14:27:00,758 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) [2024-11-19 14:27:00,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 289 transitions. [2024-11-19 14:27:00,759 INFO L240 hiAutomatonCegarLoop]: Abstraction has 199 states and 289 transitions. [2024-11-19 14:27:00,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:27:00,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 14:27:00,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 14:27:00,760 INFO L87 Difference]: Start difference. First operand 199 states and 289 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:27:00,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 14:27:00,782 INFO L93 Difference]: Finished difference Result 66 states and 95 transitions. [2024-11-19 14:27:00,782 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 66 states and 95 transitions. [2024-11-19 14:27:00,783 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 19 [2024-11-19 14:27:00,784 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 66 states to 61 states and 90 transitions. [2024-11-19 14:27:00,784 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 25 [2024-11-19 14:27:00,784 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25 [2024-11-19 14:27:00,784 INFO L73 IsDeterministic]: Start isDeterministic. Operand 61 states and 90 transitions. [2024-11-19 14:27:00,784 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-19 14:27:00,784 INFO L218 hiAutomatonCegarLoop]: Abstraction has 61 states and 90 transitions. [2024-11-19 14:27:00,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states and 90 transitions. [2024-11-19 14:27:00,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2024-11-19 14:27:00,789 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) [2024-11-19 14:27:00,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 90 transitions. [2024-11-19 14:27:00,790 INFO L240 hiAutomatonCegarLoop]: Abstraction has 61 states and 90 transitions. [2024-11-19 14:27:00,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 14:27:00,794 INFO L425 stractBuchiCegarLoop]: Abstraction has 61 states and 90 transitions. [2024-11-19 14:27:00,794 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-19 14:27:00,794 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 61 states and 90 transitions. [2024-11-19 14:27:00,795 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 19 [2024-11-19 14:27:00,795 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-19 14:27:00,795 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-19 14:27:00,795 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1] [2024-11-19 14:27:00,795 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2024-11-19 14:27:00,796 INFO L745 eck$LassoCheckResult]: Stem: 1122#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 1113#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_~s__state~0#1, main_~s__hit~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;havoc main_#t~nondet4#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0; 1114#$Ultimate##5 assume !false; 1084#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 1085#L36 assume 8466 == main_~s__state~0#1; 1112#$Ultimate##17 assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2; 1128#L69-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8656; 1124#$Ultimate##5 assume !false; 1123#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 1110#L36 assume !(8466 == main_~s__state~0#1); 1111#L41 [2024-11-19 14:27:00,796 INFO L747 eck$LassoCheckResult]: Loop: 1111#L41 assume 8512 == main_~s__state~0#1; 1086#main_switch_1_8512#1 havoc main_#t~nondet5#1;main_~tmp___1~0#1 := main_#t~nondet5#1; 1087#L81 assume !(0 != main_~tmp___1~0#1);main_~s__state~0#1 := 8640; 1108#$Ultimate##5 assume !false; 1142#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 1141#L36 assume !(8466 == main_~s__state~0#1); 1111#L41 [2024-11-19 14:27:00,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:27:00,796 INFO L85 PathProgramCache]: Analyzing trace with hash -1523382593, now seen corresponding path program 1 times [2024-11-19 14:27:00,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:27:00,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699260837] [2024-11-19 14:27:00,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:27:00,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:27:00,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:27:00,807 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 14:27:00,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:27:00,812 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 14:27:00,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:27:00,814 INFO L85 PathProgramCache]: Analyzing trace with hash 1623382260, now seen corresponding path program 1 times [2024-11-19 14:27:00,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:27:00,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142606689] [2024-11-19 14:27:00,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:27:00,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:27:00,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:27:00,819 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 14:27:00,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:27:00,823 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 14:27:00,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:27:00,824 INFO L85 PathProgramCache]: Analyzing trace with hash -1141286606, now seen corresponding path program 1 times [2024-11-19 14:27:00,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:27:00,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624531083] [2024-11-19 14:27:00,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:27:00,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:27:00,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:27:00,870 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:27:00,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:27:00,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624531083] [2024-11-19 14:27:00,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624531083] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:27:00,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:27:00,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 14:27:00,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092540692] [2024-11-19 14:27:00,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:27:00,898 INFO L204 LassoAnalysis]: Preferences: [2024-11-19 14:27:00,898 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-19 14:27:00,898 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-19 14:27:00,899 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-19 14:27:00,899 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-19 14:27:00,899 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:27:00,899 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-19 14:27:00,899 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-19 14:27:00,899 INFO L132 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration4_Loop [2024-11-19 14:27:00,899 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-19 14:27:00,899 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-19 14:27:00,900 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:27:00,906 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:27:00,925 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-19 14:27:00,926 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-19 14:27:00,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:27:00,926 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:27:00,928 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) [2024-11-19 14:27:00,929 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 [2024-11-19 14:27:00,930 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-19 14:27:00,930 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 14:27:00,967 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2024-11-19 14:27:00,968 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:27:00,968 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:27:00,969 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) [2024-11-19 14:27:00,971 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 [2024-11-19 14:27:00,973 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-19 14:27:00,973 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 14:27:00,989 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-19 14:27:01,004 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2024-11-19 14:27:01,006 INFO L204 LassoAnalysis]: Preferences: [2024-11-19 14:27:01,006 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-19 14:27:01,006 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-19 14:27:01,006 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-19 14:27:01,007 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-19 14:27:01,007 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:27:01,007 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-19 14:27:01,007 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-19 14:27:01,007 INFO L132 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration4_Loop [2024-11-19 14:27:01,007 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-19 14:27:01,007 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-19 14:27:01,008 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:27:01,014 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:27:01,037 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-19 14:27:01,037 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-19 14:27:01,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:27:01,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:27:01,039 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-19 14:27:01,041 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2024-11-19 14:27:01,042 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 [2024-11-19 14:27:01,053 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-19 14:27:01,053 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-19 14:27:01,053 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-19 14:27:01,053 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-19 14:27:01,053 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-19 14:27:01,054 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-19 14:27:01,054 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-19 14:27:01,057 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-19 14:27:01,059 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-19 14:27:01,059 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-19 14:27:01,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:27:01,059 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:27:01,061 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-19 14:27:01,063 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2024-11-19 14:27:01,063 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-19 14:27:01,063 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-19 14:27:01,063 INFO L474 LassoAnalysis]: Proved termination. [2024-11-19 14:27:01,064 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 [] [2024-11-19 14:27:01,078 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2024-11-19 14:27:01,080 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-19 14:27:01,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:27:01,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:27:01,113 INFO L255 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-19 14:27:01,114 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:27:01,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:27:01,137 INFO L255 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 14:27:01,137 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:27:01,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:27:01,176 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 [2024-11-19 14:27:01,176 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) [2024-11-19 14:27:01,254 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. [2024-11-19 14:27:01,254 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 [2024-11-19 14:27:01,255 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) [2024-11-19 14:27:01,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 47 transitions. [2024-11-19 14:27:01,255 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 47 transitions. Stem has 10 letters. Loop has 6 letters. [2024-11-19 14:27:01,256 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 14:27:01,256 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 47 transitions. Stem has 16 letters. Loop has 6 letters. [2024-11-19 14:27:01,256 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 14:27:01,256 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 47 transitions. Stem has 10 letters. Loop has 12 letters. [2024-11-19 14:27:01,257 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 14:27:01,257 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 167 states and 244 transitions. [2024-11-19 14:27:01,258 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 30 [2024-11-19 14:27:01,260 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 167 states to 147 states and 216 transitions. [2024-11-19 14:27:01,260 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 43 [2024-11-19 14:27:01,260 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 46 [2024-11-19 14:27:01,260 INFO L73 IsDeterministic]: Start isDeterministic. Operand 147 states and 216 transitions. [2024-11-19 14:27:01,260 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-19 14:27:01,260 INFO L218 hiAutomatonCegarLoop]: Abstraction has 147 states and 216 transitions. [2024-11-19 14:27:01,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states and 216 transitions. [2024-11-19 14:27:01,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 141. [2024-11-19 14:27:01,269 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) [2024-11-19 14:27:01,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 207 transitions. [2024-11-19 14:27:01,270 INFO L240 hiAutomatonCegarLoop]: Abstraction has 141 states and 207 transitions. [2024-11-19 14:27:01,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:27:01,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 14:27:01,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 14:27:01,271 INFO L87 Difference]: Start difference. First operand 141 states and 207 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:27:01,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 14:27:01,301 INFO L93 Difference]: Finished difference Result 180 states and 247 transitions. [2024-11-19 14:27:01,301 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 180 states and 247 transitions. [2024-11-19 14:27:01,303 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 36 [2024-11-19 14:27:01,304 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 180 states to 170 states and 235 transitions. [2024-11-19 14:27:01,305 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 55 [2024-11-19 14:27:01,306 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 59 [2024-11-19 14:27:01,306 INFO L73 IsDeterministic]: Start isDeterministic. Operand 170 states and 235 transitions. [2024-11-19 14:27:01,306 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-19 14:27:01,306 INFO L218 hiAutomatonCegarLoop]: Abstraction has 170 states and 235 transitions. [2024-11-19 14:27:01,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states and 235 transitions. [2024-11-19 14:27:01,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 146. [2024-11-19 14:27:01,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 146 states have (on average 1.4315068493150684) internal successors, (209), 145 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:27:01,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 209 transitions. [2024-11-19 14:27:01,331 INFO L240 hiAutomatonCegarLoop]: Abstraction has 146 states and 209 transitions. [2024-11-19 14:27:01,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 14:27:01,339 INFO L425 stractBuchiCegarLoop]: Abstraction has 146 states and 209 transitions. [2024-11-19 14:27:01,339 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-11-19 14:27:01,339 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 146 states and 209 transitions. [2024-11-19 14:27:01,340 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 35 [2024-11-19 14:27:01,340 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-19 14:27:01,340 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-19 14:27:01,340 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:27:01,340 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:27:01,340 INFO L745 eck$LassoCheckResult]: Stem: 1752#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 1740#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_~s__state~0#1, main_~s__hit~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;havoc main_#t~nondet4#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0; 1741#$Ultimate##5 assume !false; 1823#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 1824#L36 assume 8466 == main_~s__state~0#1; 1802#$Ultimate##17 assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2; 1799#L69-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8656; 1720#$Ultimate##5 [2024-11-19 14:27:01,341 INFO L747 eck$LassoCheckResult]: Loop: 1720#$Ultimate##5 assume !false; 1708#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 1709#L36 assume !(8466 == main_~s__state~0#1); 1738#L41 assume !(8512 == main_~s__state~0#1); 1747#L57 assume !(8640 == main_~s__state~0#1); 1716#L61 assume 8656 == main_~s__state~0#1; 1717#$Ultimate##31 assume 2 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 3; 1727#L100-1 assume 4 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 5; 1729#L104-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8640; 1735#$Ultimate##5 assume !false; 1820#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 1818#L36 assume 8466 == main_~s__state~0#1; 1758#$Ultimate##17 assume !(0 == main_~blastFlag~0#1); 1749#L69-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8656; 1720#$Ultimate##5 [2024-11-19 14:27:01,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:27:01,341 INFO L85 PathProgramCache]: Analyzing trace with hash 1810723569, now seen corresponding path program 1 times [2024-11-19 14:27:01,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:27:01,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034653876] [2024-11-19 14:27:01,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:27:01,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:27:01,354 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 [2024-11-19 14:27:01,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:27:01,355 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 14:27:01,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:27:01,361 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 14:27:01,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:27:01,362 INFO L85 PathProgramCache]: Analyzing trace with hash -1982564596, now seen corresponding path program 1 times [2024-11-19 14:27:01,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:27:01,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755676723] [2024-11-19 14:27:01,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:27:01,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:27:01,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:27:01,390 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2024-11-19 14:27:01,401 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:27:01,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:27:01,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755676723] [2024-11-19 14:27:01,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755676723] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:27:01,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:27:01,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 14:27:01,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318572873] [2024-11-19 14:27:01,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:27:01,402 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-19 14:27:01,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:27:01,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 14:27:01,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 14:27:01,403 INFO L87 Difference]: Start difference. First operand 146 states and 209 transitions. cyclomatic complexity: 71 Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:27:01,404 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2024-11-19 14:27:01,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 14:27:01,426 INFO L93 Difference]: Finished difference Result 194 states and 270 transitions. [2024-11-19 14:27:01,426 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 194 states and 270 transitions. [2024-11-19 14:27:01,428 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 59 [2024-11-19 14:27:01,429 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 194 states to 194 states and 270 transitions. [2024-11-19 14:27:01,429 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 70 [2024-11-19 14:27:01,429 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 70 [2024-11-19 14:27:01,429 INFO L73 IsDeterministic]: Start isDeterministic. Operand 194 states and 270 transitions. [2024-11-19 14:27:01,429 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-19 14:27:01,429 INFO L218 hiAutomatonCegarLoop]: Abstraction has 194 states and 270 transitions. [2024-11-19 14:27:01,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states and 270 transitions. [2024-11-19 14:27:01,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 194. [2024-11-19 14:27:01,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 194 states have (on average 1.3917525773195876) internal successors, (270), 193 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:27:01,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 270 transitions. [2024-11-19 14:27:01,439 INFO L240 hiAutomatonCegarLoop]: Abstraction has 194 states and 270 transitions. [2024-11-19 14:27:01,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 14:27:01,440 INFO L425 stractBuchiCegarLoop]: Abstraction has 194 states and 270 transitions. [2024-11-19 14:27:01,440 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-11-19 14:27:01,440 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 194 states and 270 transitions. [2024-11-19 14:27:01,441 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 59 [2024-11-19 14:27:01,441 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-19 14:27:01,442 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-19 14:27:01,442 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:27:01,442 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:27:01,442 INFO L745 eck$LassoCheckResult]: Stem: 2106#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 2084#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_~s__state~0#1, main_~s__hit~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;havoc main_#t~nondet4#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0; 2085#$Ultimate##5 assume !false; 2185#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 2186#L36 assume 8466 == main_~s__state~0#1; 2164#$Ultimate##17 assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2; 2160#L69-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8656; 2128#$Ultimate##5 [2024-11-19 14:27:01,443 INFO L747 eck$LassoCheckResult]: Loop: 2128#$Ultimate##5 assume !false; 2142#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 2140#L36 assume !(8466 == main_~s__state~0#1); 2138#L41 assume !(8512 == main_~s__state~0#1); 2136#L57 assume !(8640 == main_~s__state~0#1); 2062#L61 assume 8656 == main_~s__state~0#1; 2063#$Ultimate##31 assume 2 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 3; 2073#L100-1 assume !(4 == main_~blastFlag~0#1); 2074#L107 assume !(5 == main_~blastFlag~0#1); 2107#L104-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8640; 2108#$Ultimate##5 assume !false; 2169#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 2170#L36 assume 8466 == main_~s__state~0#1; 2149#$Ultimate##17 assume !(0 == main_~blastFlag~0#1); 2145#L69-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8656; 2128#$Ultimate##5 [2024-11-19 14:27:01,443 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:27:01,443 INFO L85 PathProgramCache]: Analyzing trace with hash 1810723569, now seen corresponding path program 2 times [2024-11-19 14:27:01,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:27:01,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784525337] [2024-11-19 14:27:01,443 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 14:27:01,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:27:01,448 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 14:27:01,448 INFO L228 tOrderPrioritization]: Conjunction of SSA is sat [2024-11-19 14:27:01,448 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 14:27:01,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:27:01,453 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 14:27:01,453 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:27:01,453 INFO L85 PathProgramCache]: Analyzing trace with hash 862619384, now seen corresponding path program 1 times [2024-11-19 14:27:01,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:27:01,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740444363] [2024-11-19 14:27:01,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:27:01,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:27:01,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:27:01,478 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:27:01,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:27:01,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740444363] [2024-11-19 14:27:01,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740444363] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:27:01,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:27:01,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 14:27:01,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667596465] [2024-11-19 14:27:01,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:27:01,480 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-19 14:27:01,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:27:01,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 14:27:01,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 14:27:01,481 INFO L87 Difference]: Start difference. First operand 194 states and 270 transitions. cyclomatic complexity: 84 Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:27:01,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 14:27:01,511 INFO L93 Difference]: Finished difference Result 169 states and 218 transitions. [2024-11-19 14:27:01,511 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 169 states and 218 transitions. [2024-11-19 14:27:01,512 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2024-11-19 14:27:01,513 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 169 states to 117 states and 149 transitions. [2024-11-19 14:27:01,513 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 58 [2024-11-19 14:27:01,513 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 65 [2024-11-19 14:27:01,513 INFO L73 IsDeterministic]: Start isDeterministic. Operand 117 states and 149 transitions. [2024-11-19 14:27:01,513 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-19 14:27:01,513 INFO L218 hiAutomatonCegarLoop]: Abstraction has 117 states and 149 transitions. [2024-11-19 14:27:01,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states and 149 transitions. [2024-11-19 14:27:01,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 105. [2024-11-19 14:27:01,516 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) [2024-11-19 14:27:01,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 134 transitions. [2024-11-19 14:27:01,516 INFO L240 hiAutomatonCegarLoop]: Abstraction has 105 states and 134 transitions. [2024-11-19 14:27:01,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 14:27:01,517 INFO L425 stractBuchiCegarLoop]: Abstraction has 105 states and 134 transitions. [2024-11-19 14:27:01,517 INFO L332 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2024-11-19 14:27:01,518 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 105 states and 134 transitions. [2024-11-19 14:27:01,518 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2024-11-19 14:27:01,518 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-19 14:27:01,518 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-19 14:27:01,519 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:27:01,519 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:27:01,519 INFO L745 eck$LassoCheckResult]: Stem: 2457#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 2446#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_~s__state~0#1, main_~s__hit~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;havoc main_#t~nondet4#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0; 2447#$Ultimate##5 assume !false; 2483#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 2484#L36 assume 8466 == main_~s__state~0#1; 2477#$Ultimate##17 assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2; 2471#L69-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8656; 2473#$Ultimate##5 [2024-11-19 14:27:01,519 INFO L747 eck$LassoCheckResult]: Loop: 2473#$Ultimate##5 assume !false; 2504#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 2500#L36 assume !(8466 == main_~s__state~0#1); 2501#L41 assume !(8512 == main_~s__state~0#1); 2459#L57 assume !(8640 == main_~s__state~0#1); 2427#L61 assume 8656 == main_~s__state~0#1; 2428#$Ultimate##31 assume 2 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 3; 2440#L100-1 assume !(4 == main_~blastFlag~0#1); 2441#L107 assume !(5 == main_~blastFlag~0#1); 2448#L104-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8640; 2433#$Ultimate##5 assume !false; 2423#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 2424#L36 assume !(8466 == main_~s__state~0#1); 2443#L41 assume !(8512 == main_~s__state~0#1); 2452#L57 assume 8640 == main_~s__state~0#1; 2449#$Ultimate##26 assume !(3 == main_~blastFlag~0#1); 2451#L89-1 assume !(0 != main_~s__hit~0#1);main_~s__state~0#1 := 8656; 2473#$Ultimate##5 [2024-11-19 14:27:01,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:27:01,520 INFO L85 PathProgramCache]: Analyzing trace with hash 1810723569, now seen corresponding path program 3 times [2024-11-19 14:27:01,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:27:01,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886108446] [2024-11-19 14:27:01,520 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 14:27:01,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:27:01,528 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-19 14:27:01,528 INFO L228 tOrderPrioritization]: Conjunction of SSA is sat [2024-11-19 14:27:01,529 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 14:27:01,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:27:01,537 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 14:27:01,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:27:01,537 INFO L85 PathProgramCache]: Analyzing trace with hash 49895967, now seen corresponding path program 1 times [2024-11-19 14:27:01,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:27:01,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951410986] [2024-11-19 14:27:01,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:27:01,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:27:01,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:27:01,565 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:27:01,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:27:01,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951410986] [2024-11-19 14:27:01,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951410986] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:27:01,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:27:01,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 14:27:01,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190979548] [2024-11-19 14:27:01,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:27:01,566 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-19 14:27:01,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:27:01,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 14:27:01,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 14:27:01,567 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) [2024-11-19 14:27:01,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 14:27:01,584 INFO L93 Difference]: Finished difference Result 116 states and 146 transitions. [2024-11-19 14:27:01,585 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 116 states and 146 transitions. [2024-11-19 14:27:01,585 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 56 [2024-11-19 14:27:01,586 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 116 states to 116 states and 146 transitions. [2024-11-19 14:27:01,586 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 64 [2024-11-19 14:27:01,586 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 64 [2024-11-19 14:27:01,587 INFO L73 IsDeterministic]: Start isDeterministic. Operand 116 states and 146 transitions. [2024-11-19 14:27:01,587 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-19 14:27:01,587 INFO L218 hiAutomatonCegarLoop]: Abstraction has 116 states and 146 transitions. [2024-11-19 14:27:01,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states and 146 transitions. [2024-11-19 14:27:01,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2024-11-19 14:27:01,589 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) [2024-11-19 14:27:01,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 146 transitions. [2024-11-19 14:27:01,589 INFO L240 hiAutomatonCegarLoop]: Abstraction has 116 states and 146 transitions. [2024-11-19 14:27:01,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 14:27:01,590 INFO L425 stractBuchiCegarLoop]: Abstraction has 116 states and 146 transitions. [2024-11-19 14:27:01,590 INFO L332 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2024-11-19 14:27:01,591 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 116 states and 146 transitions. [2024-11-19 14:27:01,591 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 56 [2024-11-19 14:27:01,591 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-19 14:27:01,591 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-19 14:27:01,592 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:27:01,592 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:27:01,592 INFO L745 eck$LassoCheckResult]: Stem: 2685#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 2672#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_~s__state~0#1, main_~s__hit~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;havoc main_#t~nondet4#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0; 2673#$Ultimate##5 assume !false; 2742#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 2741#L36 assume 8466 == main_~s__state~0#1; 2665#$Ultimate##17 assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2; 2666#L69-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8656; 2716#$Ultimate##5 [2024-11-19 14:27:01,592 INFO L747 eck$LassoCheckResult]: Loop: 2716#$Ultimate##5 assume !false; 2760#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 2759#L36 assume !(8466 == main_~s__state~0#1); 2758#L41 assume !(8512 == main_~s__state~0#1); 2757#L57 assume !(8640 == main_~s__state~0#1); 2755#L61 assume 8656 == main_~s__state~0#1; 2754#$Ultimate##31 assume !(2 == main_~blastFlag~0#1); 2667#L100-1 assume !(4 == main_~blastFlag~0#1); 2668#L107 assume !(5 == main_~blastFlag~0#1); 2765#L104-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8640; 2729#$Ultimate##5 assume !false; 2764#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 2763#L36 assume !(8466 == main_~s__state~0#1); 2761#L41 assume !(8512 == main_~s__state~0#1); 2703#L57 assume 8640 == main_~s__state~0#1; 2756#$Ultimate##26 assume !(3 == main_~blastFlag~0#1); 2762#L89-1 assume !(0 != main_~s__hit~0#1);main_~s__state~0#1 := 8656; 2716#$Ultimate##5 [2024-11-19 14:27:01,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:27:01,592 INFO L85 PathProgramCache]: Analyzing trace with hash 1810723569, now seen corresponding path program 4 times [2024-11-19 14:27:01,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:27:01,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964206528] [2024-11-19 14:27:01,593 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-19 14:27:01,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:27:01,597 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-19 14:27:01,597 INFO L228 tOrderPrioritization]: Conjunction of SSA is sat [2024-11-19 14:27:01,597 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 14:27:01,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:27:01,602 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 14:27:01,602 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:27:01,602 INFO L85 PathProgramCache]: Analyzing trace with hash 750960545, now seen corresponding path program 1 times [2024-11-19 14:27:01,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:27:01,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814307017] [2024-11-19 14:27:01,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:27:01,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:27:01,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:27:01,629 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:27:01,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:27:01,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814307017] [2024-11-19 14:27:01,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814307017] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:27:01,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:27:01,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 14:27:01,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817309554] [2024-11-19 14:27:01,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:27:01,630 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-19 14:27:01,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:27:01,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 14:27:01,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 14:27:01,631 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) [2024-11-19 14:27:01,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 14:27:01,640 INFO L93 Difference]: Finished difference Result 142 states and 175 transitions. [2024-11-19 14:27:01,640 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 142 states and 175 transitions. [2024-11-19 14:27:01,641 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 41 [2024-11-19 14:27:01,642 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 142 states to 137 states and 167 transitions. [2024-11-19 14:27:01,642 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 85 [2024-11-19 14:27:01,642 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 85 [2024-11-19 14:27:01,642 INFO L73 IsDeterministic]: Start isDeterministic. Operand 137 states and 167 transitions. [2024-11-19 14:27:01,643 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-19 14:27:01,643 INFO L218 hiAutomatonCegarLoop]: Abstraction has 137 states and 167 transitions. [2024-11-19 14:27:01,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states and 167 transitions. [2024-11-19 14:27:01,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 109. [2024-11-19 14:27:01,645 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) [2024-11-19 14:27:01,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 136 transitions. [2024-11-19 14:27:01,645 INFO L240 hiAutomatonCegarLoop]: Abstraction has 109 states and 136 transitions. [2024-11-19 14:27:01,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 14:27:01,646 INFO L425 stractBuchiCegarLoop]: Abstraction has 109 states and 136 transitions. [2024-11-19 14:27:01,646 INFO L332 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2024-11-19 14:27:01,646 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 109 states and 136 transitions. [2024-11-19 14:27:01,647 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 41 [2024-11-19 14:27:01,647 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-19 14:27:01,647 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-19 14:27:01,647 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:27:01,647 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:27:01,648 INFO L745 eck$LassoCheckResult]: Stem: 2951#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 2938#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_~s__state~0#1, main_~s__hit~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;havoc main_#t~nondet4#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0; 2939#$Ultimate##5 assume !false; 2916#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 2917#L36 assume 8466 == main_~s__state~0#1; 2937#$Ultimate##17 assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2; 2983#L69-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8656; 2924#$Ultimate##5 [2024-11-19 14:27:01,648 INFO L747 eck$LassoCheckResult]: Loop: 2924#$Ultimate##5 assume !false; 2914#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 2915#L36 assume !(8466 == main_~s__state~0#1); 2936#L41 assume !(8512 == main_~s__state~0#1); 2946#L57 assume !(8640 == main_~s__state~0#1); 2918#L61 assume 8656 == main_~s__state~0#1; 2919#$Ultimate##31 assume !(2 == main_~blastFlag~0#1); 3015#L100-1 assume !(4 == main_~blastFlag~0#1); 2941#L107 assume !(5 == main_~blastFlag~0#1); 2942#L104-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8640; 2924#$Ultimate##5 [2024-11-19 14:27:01,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:27:01,648 INFO L85 PathProgramCache]: Analyzing trace with hash 1810723569, now seen corresponding path program 5 times [2024-11-19 14:27:01,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:27:01,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927738043] [2024-11-19 14:27:01,648 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-19 14:27:01,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:27:01,654 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 14:27:01,657 INFO L228 tOrderPrioritization]: Conjunction of SSA is sat [2024-11-19 14:27:01,657 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 14:27:01,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:27:01,664 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 14:27:01,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:27:01,664 INFO L85 PathProgramCache]: Analyzing trace with hash 1947655960, now seen corresponding path program 1 times [2024-11-19 14:27:01,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:27:01,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911567895] [2024-11-19 14:27:01,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:27:01,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:27:01,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:27:01,668 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 14:27:01,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:27:01,671 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 14:27:01,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:27:01,672 INFO L85 PathProgramCache]: Analyzing trace with hash 163931656, now seen corresponding path program 1 times [2024-11-19 14:27:01,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:27:01,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400625471] [2024-11-19 14:27:01,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:27:01,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:27:01,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:27:01,696 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:27:01,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:27:01,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400625471] [2024-11-19 14:27:01,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400625471] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:27:01,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:27:01,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 14:27:01,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529118667] [2024-11-19 14:27:01,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:27:01,747 INFO L204 LassoAnalysis]: Preferences: [2024-11-19 14:27:01,747 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-19 14:27:01,747 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-19 14:27:01,747 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-19 14:27:01,748 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-19 14:27:01,748 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:27:01,748 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-19 14:27:01,748 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-19 14:27:01,748 INFO L132 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration9_Loop [2024-11-19 14:27:01,748 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-19 14:27:01,748 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-19 14:27:01,748 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:27:01,754 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:27:01,756 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:27:01,828 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-19 14:27:01,828 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-19 14:27:01,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:27:01,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:27:01,832 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-19 14:27:01,833 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2024-11-19 14:27:01,834 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-19 14:27:01,834 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 14:27:01,869 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2024-11-19 14:27:01,870 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:27:01,870 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:27:01,871 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-19 14:27:01,872 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2024-11-19 14:27:01,873 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-19 14:27:01,873 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 14:27:01,886 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-19 14:27:01,900 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2024-11-19 14:27:01,900 INFO L204 LassoAnalysis]: Preferences: [2024-11-19 14:27:01,900 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-19 14:27:01,900 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-19 14:27:01,900 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-19 14:27:01,900 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-19 14:27:01,901 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:27:01,901 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-19 14:27:01,901 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-19 14:27:01,901 INFO L132 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration9_Loop [2024-11-19 14:27:01,901 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-19 14:27:01,901 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-19 14:27:01,902 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:27:01,910 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:27:01,913 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:27:01,987 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-19 14:27:01,987 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-19 14:27:01,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:27:01,987 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:27:01,991 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) [2024-11-19 14:27:01,992 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 [2024-11-19 14:27:01,993 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 [2024-11-19 14:27:02,002 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-19 14:27:02,003 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-19 14:27:02,003 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-19 14:27:02,003 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-19 14:27:02,003 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-19 14:27:02,003 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-19 14:27:02,004 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-19 14:27:02,006 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-19 14:27:02,009 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-19 14:27:02,009 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-19 14:27:02,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:27:02,009 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:27:02,011 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) [2024-11-19 14:27:02,013 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 [2024-11-19 14:27:02,014 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-19 14:27:02,014 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-19 14:27:02,014 INFO L474 LassoAnalysis]: Proved termination. [2024-11-19 14:27:02,014 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 [] [2024-11-19 14:27:02,028 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2024-11-19 14:27:02,029 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-19 14:27:02,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:27:02,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:27:02,049 INFO L255 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-19 14:27:02,049 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:27:02,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:27:02,068 INFO L255 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 14:27:02,069 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:27:02,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:27:02,099 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 [2024-11-19 14:27:02,099 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) [2024-11-19 14:27:02,119 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. [2024-11-19 14:27:02,119 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 [2024-11-19 14:27:02,120 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) [2024-11-19 14:27:02,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 38 transitions. [2024-11-19 14:27:02,120 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 38 transitions. Stem has 7 letters. Loop has 10 letters. [2024-11-19 14:27:02,120 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 14:27:02,120 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 38 transitions. Stem has 17 letters. Loop has 10 letters. [2024-11-19 14:27:02,121 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 14:27:02,121 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 38 transitions. Stem has 7 letters. Loop has 20 letters. [2024-11-19 14:27:02,121 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 14:27:02,121 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 148 states and 178 transitions. [2024-11-19 14:27:02,122 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 41 [2024-11-19 14:27:02,126 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 148 states to 109 states and 132 transitions. [2024-11-19 14:27:02,127 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 57 [2024-11-19 14:27:02,127 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 57 [2024-11-19 14:27:02,127 INFO L73 IsDeterministic]: Start isDeterministic. Operand 109 states and 132 transitions. [2024-11-19 14:27:02,127 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-19 14:27:02,127 INFO L218 hiAutomatonCegarLoop]: Abstraction has 109 states and 132 transitions. [2024-11-19 14:27:02,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states and 132 transitions. [2024-11-19 14:27:02,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2024-11-19 14:27:02,129 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) [2024-11-19 14:27:02,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 132 transitions. [2024-11-19 14:27:02,129 INFO L240 hiAutomatonCegarLoop]: Abstraction has 109 states and 132 transitions. [2024-11-19 14:27:02,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:27:02,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 14:27:02,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 14:27:02,131 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) [2024-11-19 14:27:02,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 14:27:02,143 INFO L93 Difference]: Finished difference Result 92 states and 106 transitions. [2024-11-19 14:27:02,143 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 92 states and 106 transitions. [2024-11-19 14:27:02,143 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 21 [2024-11-19 14:27:02,144 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 92 states to 62 states and 71 transitions. [2024-11-19 14:27:02,144 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 42 [2024-11-19 14:27:02,144 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 46 [2024-11-19 14:27:02,144 INFO L73 IsDeterministic]: Start isDeterministic. Operand 62 states and 71 transitions. [2024-11-19 14:27:02,144 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-19 14:27:02,144 INFO L218 hiAutomatonCegarLoop]: Abstraction has 62 states and 71 transitions. [2024-11-19 14:27:02,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states and 71 transitions. [2024-11-19 14:27:02,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2024-11-19 14:27:02,146 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) [2024-11-19 14:27:02,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 71 transitions. [2024-11-19 14:27:02,146 INFO L240 hiAutomatonCegarLoop]: Abstraction has 62 states and 71 transitions. [2024-11-19 14:27:02,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 14:27:02,148 INFO L425 stractBuchiCegarLoop]: Abstraction has 62 states and 71 transitions. [2024-11-19 14:27:02,148 INFO L332 stractBuchiCegarLoop]: ======== Iteration 10 ============ [2024-11-19 14:27:02,149 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 62 states and 71 transitions. [2024-11-19 14:27:02,150 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 21 [2024-11-19 14:27:02,150 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-19 14:27:02,150 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-19 14:27:02,151 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:27:02,151 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:27:02,151 INFO L745 eck$LassoCheckResult]: Stem: 3477#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 3466#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_~s__state~0#1, main_~s__hit~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;havoc main_#t~nondet4#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0; 3467#$Ultimate##5 assume !false; 3496#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 3495#L36 assume 8466 == main_~s__state~0#1; 3494#$Ultimate##17 assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2; 3493#L69-1 assume !(0 != main_~s__hit~0#1);main_~s__state~0#1 := 8512; 3486#$Ultimate##5 assume !false; 3484#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 3482#L36 assume !(8466 == main_~s__state~0#1); 3481#L41 assume 8512 == main_~s__state~0#1; 3450#main_switch_1_8512#1 [2024-11-19 14:27:02,151 INFO L747 eck$LassoCheckResult]: Loop: 3450#main_switch_1_8512#1 havoc main_#t~nondet5#1;main_~tmp___1~0#1 := main_#t~nondet5#1; 3451#L81 assume 0 != main_~tmp___1~0#1;main_~s__state~0#1 := 8466; 3464#$Ultimate##5 assume !false; 3501#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 3499#L36 assume 8466 == main_~s__state~0#1; 3458#$Ultimate##17 assume !(0 == main_~blastFlag~0#1); 3459#L69-1 assume !(0 != main_~s__hit~0#1);main_~s__state~0#1 := 8512; 3475#$Ultimate##5 assume !false; 3498#L30 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 3497#L36 assume !(8466 == main_~s__state~0#1); 3480#L41 assume 8512 == main_~s__state~0#1; 3450#main_switch_1_8512#1 [2024-11-19 14:27:02,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:27:02,152 INFO L85 PathProgramCache]: Analyzing trace with hash 21626939, now seen corresponding path program 1 times [2024-11-19 14:27:02,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:27:02,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40247114] [2024-11-19 14:27:02,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:27:02,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:27:02,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:27:02,161 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 14:27:02,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:27:02,166 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 14:27:02,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:27:02,167 INFO L85 PathProgramCache]: Analyzing trace with hash 1294878776, now seen corresponding path program 1 times [2024-11-19 14:27:02,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:27:02,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242891404] [2024-11-19 14:27:02,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:27:02,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:27:02,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:27:02,171 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 14:27:02,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:27:02,174 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 14:27:02,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:27:02,174 INFO L85 PathProgramCache]: Analyzing trace with hash 937672638, now seen corresponding path program 1 times [2024-11-19 14:27:02,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:27:02,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653843402] [2024-11-19 14:27:02,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:27:02,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:27:02,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:27:02,180 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 14:27:02,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:27:02,184 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 14:27:02,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:27:02,370 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 14:27:02,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:27:02,412 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 02:27:02 BoogieIcfgContainer [2024-11-19 14:27:02,413 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-19 14:27:02,414 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-19 14:27:02,414 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-19 14:27:02,414 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-19 14:27:02,415 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:26:58" (3/4) ... [2024-11-19 14:27:02,417 INFO L139 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-19 14:27:02,462 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-19 14:27:02,462 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-19 14:27:02,462 INFO L158 Benchmark]: Toolchain (without parser) took 4986.07ms. Allocated memory is still 184.5MB. Free memory was 115.7MB in the beginning and 56.1MB in the end (delta: 59.6MB). Peak memory consumption was 60.5MB. Max. memory is 16.1GB. [2024-11-19 14:27:02,463 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 184.5MB. Free memory is still 161.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 14:27:02,463 INFO L158 Benchmark]: CACSL2BoogieTranslator took 341.51ms. Allocated memory is still 184.5MB. Free memory was 115.7MB in the beginning and 148.6MB in the end (delta: -32.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-19 14:27:02,463 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.19ms. Allocated memory is still 184.5MB. Free memory was 148.6MB in the beginning and 147.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-19 14:27:02,463 INFO L158 Benchmark]: Boogie Preprocessor took 32.19ms. Allocated memory is still 184.5MB. Free memory was 147.3MB in the beginning and 145.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 14:27:02,463 INFO L158 Benchmark]: RCFGBuilder took 362.52ms. Allocated memory is still 184.5MB. Free memory was 145.2MB in the beginning and 133.8MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-19 14:27:02,464 INFO L158 Benchmark]: BuchiAutomizer took 4164.64ms. Allocated memory is still 184.5MB. Free memory was 133.8MB in the beginning and 58.2MB in the end (delta: 75.6MB). Peak memory consumption was 78.3MB. Max. memory is 16.1GB. [2024-11-19 14:27:02,464 INFO L158 Benchmark]: Witness Printer took 48.11ms. Allocated memory is still 184.5MB. Free memory was 58.2MB in the beginning and 56.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-19 14:27:02,465 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 184.5MB. Free memory is still 161.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 341.51ms. Allocated memory is still 184.5MB. Free memory was 115.7MB in the beginning and 148.6MB in the end (delta: -32.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.19ms. Allocated memory is still 184.5MB. Free memory was 148.6MB in the beginning and 147.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.19ms. Allocated memory is still 184.5MB. Free memory was 147.3MB in the beginning and 145.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 362.52ms. Allocated memory is still 184.5MB. Free memory was 145.2MB in the beginning and 133.8MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 4164.64ms. Allocated memory is still 184.5MB. Free memory was 133.8MB in the beginning and 58.2MB in the end (delta: 75.6MB). Peak memory consumption was 78.3MB. Max. memory is 16.1GB. * Witness Printer took 48.11ms. Allocated memory is still 184.5MB. Free memory was 58.2MB in the beginning and 56.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 13 terminating modules (8 trivial, 5 deterministic, 0 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function (((long long) -1 * blastFlag) + 1) and consists of 4 locations. One deterministic module has affine ranking function (((long long) -1 * s__state) + 8489) and consists of 4 locations. One deterministic module has affine ranking function s__state and consists of 5 locations. One deterministic module has affine ranking function (8576 + ((long long) -1 * s__state)) and consists of 5 locations. One deterministic module has affine ranking function s__state and consists of 4 locations. 8 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 62 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.0s and 10 iterations. TraceHistogramMax:2. Analysis of lassos took 2.8s. Construction of modules took 0.2s. Büchi inclusion checks took 0.7s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 13. Automata minimization 0.1s AutomataMinimizationTime, 13 MinimizatonAttempts, 136 StatesRemovedByMinimization, 8 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [5, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 202 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 197 mSDsluCounter, 539 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 199 mSDsCounter, 39 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 308 IncrementalHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 39 mSolverCounterUnsat, 340 mSDtfsCounter, 308 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI4 SFLT1 conc0 concLT4 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax100 hnf100 lsp65 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq192 hnf89 smp100 dnf145 smp81 tf114 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 26ms VariablesStem: 0 VariablesLoop: 1 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 0 MotzkinApplications: 4 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 79]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L21] int s__state ; [L22] int s__hit = __VERIFIER_nondet_int() ; [L23] int blastFlag ; [L24] int tmp___1; [L26] s__state = 8466 [L27] blastFlag = 0 VAL [blastFlag=0, s__state=8466] [L29] COND TRUE 1 VAL [blastFlag=0, s__state=8466] [L30] COND FALSE !(s__state <= 8512 && blastFlag > 2) VAL [blastFlag=0, s__state=8466] [L36] COND TRUE s__state == 8466 VAL [blastFlag=0] [L69] COND TRUE blastFlag == 0 [L70] blastFlag = 2 VAL [blastFlag=2] [L72] COND FALSE !(\read(s__hit)) [L75] s__state = 8512 VAL [blastFlag=2, s__hit=0, s__state=8512] [L29] COND TRUE 1 VAL [blastFlag=2, s__hit=0, s__state=8512] [L30] COND FALSE !(s__state <= 8512 && blastFlag > 2) VAL [blastFlag=2, s__hit=0, s__state=8512] [L36] COND FALSE !(s__state == 8466) VAL [blastFlag=2, s__hit=0, s__state=8512] [L41] COND TRUE s__state == 8512 VAL [blastFlag=2, s__hit=0] Loop: [L80] tmp___1 = __VERIFIER_nondet_int() [L81] COND TRUE \read(tmp___1) [L82] s__state = 8466 [L29] COND TRUE 1 [L30] COND FALSE !(s__state <= 8512 && blastFlag > 2) [L36] COND TRUE s__state == 8466 [L69] COND FALSE !(blastFlag == 0) [L72] COND FALSE !(\read(s__hit)) [L75] s__state = 8512 [L29] COND TRUE 1 [L30] COND FALSE !(s__state <= 8512 && blastFlag > 2) [L36] COND FALSE !(s__state == 8466) [L41] COND TRUE s__state == 8512 End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 79]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L21] int s__state ; [L22] int s__hit = __VERIFIER_nondet_int() ; [L23] int blastFlag ; [L24] int tmp___1; [L26] s__state = 8466 [L27] blastFlag = 0 VAL [blastFlag=0, s__state=8466] [L29] COND TRUE 1 VAL [blastFlag=0, s__state=8466] [L30] COND FALSE !(s__state <= 8512 && blastFlag > 2) VAL [blastFlag=0, s__state=8466] [L36] COND TRUE s__state == 8466 VAL [blastFlag=0] [L69] COND TRUE blastFlag == 0 [L70] blastFlag = 2 VAL [blastFlag=2] [L72] COND FALSE !(\read(s__hit)) [L75] s__state = 8512 VAL [blastFlag=2, s__hit=0, s__state=8512] [L29] COND TRUE 1 VAL [blastFlag=2, s__hit=0, s__state=8512] [L30] COND FALSE !(s__state <= 8512 && blastFlag > 2) VAL [blastFlag=2, s__hit=0, s__state=8512] [L36] COND FALSE !(s__state == 8466) VAL [blastFlag=2, s__hit=0, s__state=8512] [L41] COND TRUE s__state == 8512 VAL [blastFlag=2, s__hit=0] Loop: [L80] tmp___1 = __VERIFIER_nondet_int() [L81] COND TRUE \read(tmp___1) [L82] s__state = 8466 [L29] COND TRUE 1 [L30] COND FALSE !(s__state <= 8512 && blastFlag > 2) [L36] COND TRUE s__state == 8466 [L69] COND FALSE !(blastFlag == 0) [L72] COND FALSE !(\read(s__hit)) [L75] s__state = 8512 [L29] COND TRUE 1 [L30] COND FALSE !(s__state <= 8512 && blastFlag > 2) [L36] COND FALSE !(s__state == 8466) [L41] COND TRUE s__state == 8512 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-11-19 14:27:02,489 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 [2024-11-19 14:27:02,701 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)