./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 023d838f 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.fs.icfgbuilder-eval-023d838-m [2024-11-10 22:45:34,271 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 22:45:34,347 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-10 22:45:34,354 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 22:45:34,355 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 22:45:34,355 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2024-11-10 22:45:34,385 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 22:45:34,387 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 22:45:34,387 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 22:45:34,389 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 22:45:34,390 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 22:45:34,391 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 22:45:34,391 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 22:45:34,392 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 22:45:34,394 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-10 22:45:34,394 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-10 22:45:34,394 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-10 22:45:34,395 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-10 22:45:34,395 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-10 22:45:34,395 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-10 22:45:34,396 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 22:45:34,397 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-10 22:45:34,397 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 22:45:34,398 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 22:45:34,398 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 22:45:34,398 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 22:45:34,399 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-10 22:45:34,399 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-10 22:45:34,405 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-10 22:45:34,406 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 22:45:34,407 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 22:45:34,407 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 22:45:34,407 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 22:45:34,407 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-10 22:45:34,407 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 22:45:34,408 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 22:45:34,408 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 22:45:34,408 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 22:45:34,408 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 22:45:34,409 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-10 22:45:34,409 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 153b6d90c91de27e09ed3c918b0b1be779b258e790f6fc392e7d5f390719c2db [2024-11-10 22:45:34,655 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 22:45:34,678 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 22:45:34,682 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 22:45:34,683 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 22:45:34,683 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 22:45:34,684 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/openssl-simplified/s3_srvr_1b.cil.c [2024-11-10 22:45:36,122 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 22:45:36,311 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 22:45:36,312 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/openssl-simplified/s3_srvr_1b.cil.c [2024-11-10 22:45:36,324 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0fd4da54/9009388064ae4884a11c162506a6f2f2/FLAG2c3fde973 [2024-11-10 22:45:36,340 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0fd4da54/9009388064ae4884a11c162506a6f2f2 [2024-11-10 22:45:36,346 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 22:45:36,347 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 22:45:36,350 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 22:45:36,350 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 22:45:36,355 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 22:45:36,356 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:45:36" (1/1) ... [2024-11-10 22:45:36,357 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2123c45b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:45:36, skipping insertion in model container [2024-11-10 22:45:36,357 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:45:36" (1/1) ... [2024-11-10 22:45:36,383 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 22:45:36,585 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 22:45:36,596 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 22:45:36,622 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 22:45:36,639 INFO L204 MainTranslator]: Completed translation [2024-11-10 22:45:36,640 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:45:36 WrapperNode [2024-11-10 22:45:36,640 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 22:45:36,641 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 22:45:36,641 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 22:45:36,641 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 22:45:36,646 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:45:36" (1/1) ... [2024-11-10 22:45:36,652 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:45:36" (1/1) ... [2024-11-10 22:45:36,666 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 73 [2024-11-10 22:45:36,666 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 22:45:36,667 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 22:45:36,667 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 22:45:36,667 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 22:45:36,675 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:45:36" (1/1) ... [2024-11-10 22:45:36,675 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:45:36" (1/1) ... [2024-11-10 22:45:36,676 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:45:36" (1/1) ... [2024-11-10 22:45:36,686 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]. [2024-11-10 22:45:36,686 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:45:36" (1/1) ... [2024-11-10 22:45:36,686 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:45:36" (1/1) ... [2024-11-10 22:45:36,688 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:45:36" (1/1) ... [2024-11-10 22:45:36,689 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:45:36" (1/1) ... [2024-11-10 22:45:36,690 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:45:36" (1/1) ... [2024-11-10 22:45:36,690 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:45:36" (1/1) ... [2024-11-10 22:45:36,692 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 22:45:36,693 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 22:45:36,693 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 22:45:36,693 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 22:45:36,694 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:45:36" (1/1) ... [2024-11-10 22:45:36,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:45:36,713 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:45:36,727 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) [2024-11-10 22:45:36,733 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 [2024-11-10 22:45:36,776 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 22:45:36,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 22:45:36,776 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 22:45:36,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 22:45:36,825 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 22:45:36,826 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 22:45:36,990 INFO L? ?]: Removed 15 outVars from TransFormulas that were not future-live. [2024-11-10 22:45:36,990 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 22:45:37,002 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 22:45:37,005 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 22:45:37,006 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:45:37 BoogieIcfgContainer [2024-11-10 22:45:37,006 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 22:45:37,007 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-10 22:45:37,007 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-10 22:45:37,011 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-10 22:45:37,014 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-10 22:45:37,014 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 10.11 10:45:36" (1/3) ... [2024-11-10 22:45:37,015 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@436f4f99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.11 10:45:37, skipping insertion in model container [2024-11-10 22:45:37,015 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-10 22:45:37,015 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:45:36" (2/3) ... [2024-11-10 22:45:37,015 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@436f4f99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.11 10:45:37, skipping insertion in model container [2024-11-10 22:45:37,015 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-10 22:45:37,015 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:45:37" (3/3) ... [2024-11-10 22:45:37,018 INFO L332 chiAutomizerObserver]: Analyzing ICFG s3_srvr_1b.cil.c [2024-11-10 22:45:37,077 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-10 22:45:37,078 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-10 22:45:37,078 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-10 22:45:37,078 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-10 22:45:37,078 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-10 22:45:37,079 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-10 22:45:37,079 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-10 22:45:37,079 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-10 22:45:37,087 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 29 states, 28 states have (on average 1.5714285714285714) internal successors, (44), 28 states have internal predecessors, (44), 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) [2024-11-10 22:45:37,111 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 21 [2024-11-10 22:45:37,112 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-10 22:45:37,112 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-10 22:45:37,118 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-10 22:45:37,118 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:45:37,118 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-10 22:45:37,119 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 29 states, 28 states have (on average 1.5714285714285714) internal successors, (44), 28 states have internal predecessors, (44), 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) [2024-11-10 22:45:37,121 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 21 [2024-11-10 22:45:37,121 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-10 22:45:37,121 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-10 22:45:37,122 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-10 22:45:37,122 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:45:37,129 INFO L745 eck$LassoCheckResult]: Stem: 11#ULTIMATE.startENTRYtrue 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); 26#ULTIMATE.init_returnLabel#1true assume true;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; 15#L29true [2024-11-10 22:45:37,130 INFO L747 eck$LassoCheckResult]: Loop: 15#L29true assume true; 16#L29-1true assume !false; 24#L30-1true assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 18#L36true assume !(8466 == main_~s__state~0#1); 25#L41true assume 8512 == main_~s__state~0#1; 20#L42true assume true;havoc main_#t~nondet5#1;main_~tmp___1~0#1 := main_#t~nondet5#1; 17#L81true assume !(0 != main_~tmp___1~0#1);main_~s__state~0#1 := 8640; 8#L77true assume true; 15#L29true [2024-11-10 22:45:37,136 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:45:37,137 INFO L85 PathProgramCache]: Analyzing trace with hash 2784, now seen corresponding path program 1 times [2024-11-10 22:45:37,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:45:37,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188184844] [2024-11-10 22:45:37,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:45:37,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:45:37,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:45:37,220 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 22:45:37,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:45:37,253 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 22:45:37,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:45:37,258 INFO L85 PathProgramCache]: Analyzing trace with hash -886133033, now seen corresponding path program 1 times [2024-11-10 22:45:37,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:45:37,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163166487] [2024-11-10 22:45:37,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:45:37,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:45:37,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:45:37,274 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 22:45:37,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:45:37,282 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 22:45:37,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:45:37,284 INFO L85 PathProgramCache]: Analyzing trace with hash -1625199946, now seen corresponding path program 1 times [2024-11-10 22:45:37,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:45:37,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105048923] [2024-11-10 22:45:37,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:45:37,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:45:37,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:45:37,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:45:37,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:45:37,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105048923] [2024-11-10 22:45:37,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105048923] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:45:37,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:45:37,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:45:37,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48943953] [2024-11-10 22:45:37,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:45:37,475 INFO L204 LassoAnalysis]: Preferences: [2024-11-10 22:45:37,476 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-10 22:45:37,476 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-10 22:45:37,477 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-10 22:45:37,477 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-10 22:45:37,477 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:45:37,477 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-10 22:45:37,477 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-10 22:45:37,477 INFO L132 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration1_Loop [2024-11-10 22:45:37,478 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-10 22:45:37,478 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-10 22:45:37,490 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:45:37,499 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:45:37,502 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:45:37,559 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-10 22:45:37,560 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-10 22:45:37,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:45:37,562 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:45:37,565 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) [2024-11-10 22:45:37,566 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 [2024-11-10 22:45:37,567 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-10 22:45:37,568 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-10 22:45:37,590 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-10 22:45:37,591 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: [] [2024-11-10 22:45:37,602 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-11-10 22:45:37,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:45:37,603 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:45:37,604 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) [2024-11-10 22:45:37,605 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 [2024-11-10 22:45:37,606 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-10 22:45:37,606 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-10 22:45:37,617 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-10 22:45:37,618 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: [] [2024-11-10 22:45:37,628 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 [2024-11-10 22:45:37,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:45:37,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:45:37,630 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) [2024-11-10 22:45:37,631 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 [2024-11-10 22:45:37,632 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-10 22:45:37,632 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-10 22:45:37,665 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2024-11-10 22:45:37,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:45:37,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:45:37,667 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) [2024-11-10 22:45:37,668 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 [2024-11-10 22:45:37,669 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-10 22:45:37,669 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-10 22:45:37,683 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-10 22:45:37,698 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 [2024-11-10 22:45:37,699 INFO L204 LassoAnalysis]: Preferences: [2024-11-10 22:45:37,699 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-10 22:45:37,699 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-10 22:45:37,699 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-10 22:45:37,699 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-10 22:45:37,700 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:45:37,700 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-10 22:45:37,700 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-10 22:45:37,700 INFO L132 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration1_Loop [2024-11-10 22:45:37,700 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-10 22:45:37,700 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-10 22:45:37,702 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:45:37,706 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:45:37,717 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:45:37,750 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-10 22:45:37,755 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-10 22:45:37,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:45:37,756 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:45:37,758 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) [2024-11-10 22:45:37,760 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 [2024-11-10 22:45:37,761 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 [2024-11-10 22:45:37,775 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-10 22:45:37,776 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-10 22:45:37,776 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-10 22:45:37,776 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-10 22:45:37,776 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-10 22:45:37,779 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-10 22:45:37,779 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-10 22:45:37,782 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-10 22:45:37,792 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2024-11-10 22:45:37,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:45:37,793 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:45:37,794 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) [2024-11-10 22:45:37,795 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 [2024-11-10 22:45:37,796 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 [2024-11-10 22:45:37,806 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-10 22:45:37,806 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-10 22:45:37,806 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-10 22:45:37,806 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-10 22:45:37,806 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-10 22:45:37,808 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-10 22:45:37,808 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-10 22:45:37,813 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-10 22:45:37,817 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-10 22:45:37,817 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-10 22:45:37,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:45:37,819 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:45:37,834 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) [2024-11-10 22:45:37,835 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 [2024-11-10 22:45:37,836 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-10 22:45:37,836 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-10 22:45:37,836 INFO L474 LassoAnalysis]: Proved termination. [2024-11-10 22:45:37,837 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 [] [2024-11-10 22:45:37,849 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2024-11-10 22:45:37,853 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-10 22:45:37,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:45:37,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:45:37,900 INFO L255 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-10 22:45:37,901 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:45:37,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:45:37,918 INFO L255 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-10 22:45:37,920 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:45:37,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:45:38,021 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 [2024-11-10 22:45:38,023 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 29 states, 28 states have (on average 1.5714285714285714) internal successors, (44), 28 states have internal predecessors, (44), 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 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:45:38,102 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 [2024-11-10 22:45:38,250 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 29 states, 28 states have (on average 1.5714285714285714) internal successors, (44), 28 states have internal predecessors, (44), 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 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 119 states and 180 transitions. Complement of second has 10 states. [2024-11-10 22:45:38,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2024-11-10 22:45:38,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:45:38,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 76 transitions. [2024-11-10 22:45:38,260 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 76 transitions. Stem has 2 letters. Loop has 8 letters. [2024-11-10 22:45:38,261 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-10 22:45:38,261 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 76 transitions. Stem has 10 letters. Loop has 8 letters. [2024-11-10 22:45:38,261 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-10 22:45:38,261 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 76 transitions. Stem has 2 letters. Loop has 16 letters. [2024-11-10 22:45:38,262 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-10 22:45:38,263 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 119 states and 180 transitions. [2024-11-10 22:45:38,268 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 38 [2024-11-10 22:45:38,272 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 119 states to 84 states and 114 transitions. [2024-11-10 22:45:38,274 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 47 [2024-11-10 22:45:38,275 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 49 [2024-11-10 22:45:38,276 INFO L73 IsDeterministic]: Start isDeterministic. Operand 84 states and 114 transitions. [2024-11-10 22:45:38,276 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-10 22:45:38,277 INFO L218 hiAutomatonCegarLoop]: Abstraction has 84 states and 114 transitions. [2024-11-10 22:45:38,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states and 114 transitions. [2024-11-10 22:45:38,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 67. [2024-11-10 22:45:38,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 67 states have (on average 1.373134328358209) internal successors, (92), 66 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:45:38,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 92 transitions. [2024-11-10 22:45:38,305 INFO L240 hiAutomatonCegarLoop]: Abstraction has 67 states and 92 transitions. [2024-11-10 22:45:38,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:45:38,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 22:45:38,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 22:45:38,308 INFO L87 Difference]: Start difference. First operand 67 states and 92 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:45:38,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 22:45:38,340 INFO L93 Difference]: Finished difference Result 88 states and 113 transitions. [2024-11-10 22:45:38,340 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 88 states and 113 transitions. [2024-11-10 22:45:38,342 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 42 [2024-11-10 22:45:38,343 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 88 states to 88 states and 113 transitions. [2024-11-10 22:45:38,343 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 53 [2024-11-10 22:45:38,343 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 53 [2024-11-10 22:45:38,346 INFO L73 IsDeterministic]: Start isDeterministic. Operand 88 states and 113 transitions. [2024-11-10 22:45:38,347 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-10 22:45:38,347 INFO L218 hiAutomatonCegarLoop]: Abstraction has 88 states and 113 transitions. [2024-11-10 22:45:38,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states and 113 transitions. [2024-11-10 22:45:38,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 82. [2024-11-10 22:45:38,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 82 states have (on average 1.3048780487804879) internal successors, (107), 81 states have internal predecessors, (107), 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) [2024-11-10 22:45:38,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 107 transitions. [2024-11-10 22:45:38,353 INFO L240 hiAutomatonCegarLoop]: Abstraction has 82 states and 107 transitions. [2024-11-10 22:45:38,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 22:45:38,354 INFO L425 stractBuchiCegarLoop]: Abstraction has 82 states and 107 transitions. [2024-11-10 22:45:38,354 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-10 22:45:38,354 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 82 states and 107 transitions. [2024-11-10 22:45:38,356 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 42 [2024-11-10 22:45:38,356 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-10 22:45:38,356 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-10 22:45:38,357 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-10 22:45:38,357 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:45:38,357 INFO L745 eck$LassoCheckResult]: Stem: 366#ULTIMATE.startENTRY 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); 367#ULTIMATE.init_returnLabel#1 assume true;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; 409#L29 assume true; 385#L29-1 [2024-11-10 22:45:38,359 INFO L747 eck$LassoCheckResult]: Loop: 385#L29-1 assume !false; 388#L30-1 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 396#L36 assume 8466 == main_~s__state~0#1; 397#L37 assume true; 410#L69 assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2; 411#L72 assume !(0 != main_~s__hit~0#1);main_~s__state~0#1 := 8512; 434#L77 assume true; 433#L29 assume true; 432#L29-1 assume !false; 431#L30-1 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 430#L36 assume !(8466 == main_~s__state~0#1); 407#L41 assume 8512 == main_~s__state~0#1; 402#L42 assume true;havoc main_#t~nondet5#1;main_~tmp___1~0#1 := main_#t~nondet5#1; 392#L81 assume 0 != main_~tmp___1~0#1;main_~s__state~0#1 := 8466; 393#L77 assume true; 384#L29 assume true; 385#L29-1 [2024-11-10 22:45:38,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:45:38,360 INFO L85 PathProgramCache]: Analyzing trace with hash 86358, now seen corresponding path program 1 times [2024-11-10 22:45:38,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:45:38,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767307609] [2024-11-10 22:45:38,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:45:38,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:45:38,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:45:38,371 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 22:45:38,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:45:38,381 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 22:45:38,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:45:38,381 INFO L85 PathProgramCache]: Analyzing trace with hash 623731183, now seen corresponding path program 1 times [2024-11-10 22:45:38,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:45:38,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216395109] [2024-11-10 22:45:38,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:45:38,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:45:38,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:45:38,396 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 22:45:38,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:45:38,405 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 22:45:38,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:45:38,410 INFO L85 PathProgramCache]: Analyzing trace with hash -1965856444, now seen corresponding path program 1 times [2024-11-10 22:45:38,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:45:38,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561954819] [2024-11-10 22:45:38,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:45:38,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:45:38,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:45:38,427 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 22:45:38,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:45:38,435 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 22:45:38,508 INFO L204 LassoAnalysis]: Preferences: [2024-11-10 22:45:38,509 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-10 22:45:38,509 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-10 22:45:38,509 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-10 22:45:38,510 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-10 22:45:38,510 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:45:38,510 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-10 22:45:38,510 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-10 22:45:38,510 INFO L132 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration2_Loop [2024-11-10 22:45:38,510 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-10 22:45:38,510 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-10 22:45:38,511 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:45:38,515 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:45:38,520 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:45:38,525 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:45:38,571 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-10 22:45:38,571 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-10 22:45:38,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:45:38,572 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:45:38,574 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) [2024-11-10 22:45:38,575 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 [2024-11-10 22:45:38,576 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-10 22:45:38,576 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-10 22:45:38,592 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-10 22:45:38,592 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: [] [2024-11-10 22:45:38,609 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 [2024-11-10 22:45:38,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:45:38,609 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:45:38,611 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) [2024-11-10 22:45:38,612 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 [2024-11-10 22:45:38,613 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-10 22:45:38,613 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-10 22:45:38,642 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 [2024-11-10 22:45:38,644 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:45:38,644 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:45:38,646 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) [2024-11-10 22:45:38,648 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-10 22:45:38,649 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-10 22:45:38,651 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 [2024-11-10 22:45:38,663 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-10 22:45:38,674 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 [2024-11-10 22:45:38,674 INFO L204 LassoAnalysis]: Preferences: [2024-11-10 22:45:38,675 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-10 22:45:38,675 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-10 22:45:38,675 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-10 22:45:38,675 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-10 22:45:38,675 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:45:38,675 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-10 22:45:38,675 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-10 22:45:38,675 INFO L132 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration2_Loop [2024-11-10 22:45:38,675 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-10 22:45:38,675 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-10 22:45:38,676 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:45:38,679 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:45:38,684 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:45:38,694 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:45:38,736 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-10 22:45:38,736 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-10 22:45:38,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:45:38,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:45:38,739 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) [2024-11-10 22:45:38,740 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 [2024-11-10 22:45:38,741 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 [2024-11-10 22:45:38,754 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-10 22:45:38,754 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-10 22:45:38,754 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-10 22:45:38,754 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-10 22:45:38,754 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-10 22:45:38,755 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-10 22:45:38,755 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-10 22:45:38,759 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-10 22:45:38,771 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 [2024-11-10 22:45:38,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:45:38,772 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:45:38,773 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) [2024-11-10 22:45:38,774 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 [2024-11-10 22:45:38,775 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 [2024-11-10 22:45:38,785 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-10 22:45:38,785 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-10 22:45:38,785 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-10 22:45:38,785 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-10 22:45:38,785 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-10 22:45:38,786 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-10 22:45:38,786 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-10 22:45:38,788 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-10 22:45:38,792 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-10 22:45:38,792 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-10 22:45:38,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:45:38,792 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:45:38,794 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) [2024-11-10 22:45:38,796 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 [2024-11-10 22:45:38,797 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-10 22:45:38,797 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-10 22:45:38,797 INFO L474 LassoAnalysis]: Proved termination. [2024-11-10 22:45:38,797 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 [] [2024-11-10 22:45:38,810 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 [2024-11-10 22:45:38,811 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-10 22:45:38,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:45:38,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:45:38,837 INFO L255 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-10 22:45:38,837 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:45:38,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:45:38,848 INFO L255 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-10 22:45:38,849 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:45:38,926 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-10 22:45:38,926 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 [2024-11-10 22:45:38,927 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 82 states and 107 transitions. cyclomatic complexity: 28 Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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) [2024-11-10 22:45:38,964 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 82 states and 107 transitions. cyclomatic complexity: 28. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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 169 states and 224 transitions. Complement of second has 4 states. [2024-11-10 22:45:38,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-10 22:45:38,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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) [2024-11-10 22:45:38,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 36 transitions. [2024-11-10 22:45:38,968 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 36 transitions. Stem has 3 letters. Loop has 16 letters. [2024-11-10 22:45:38,968 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-10 22:45:38,968 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 36 transitions. Stem has 19 letters. Loop has 16 letters. [2024-11-10 22:45:38,969 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-10 22:45:38,969 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 36 transitions. Stem has 3 letters. Loop has 32 letters. [2024-11-10 22:45:38,970 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-10 22:45:38,970 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 169 states and 224 transitions. [2024-11-10 22:45:38,975 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 42 [2024-11-10 22:45:38,978 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 169 states to 169 states and 224 transitions. [2024-11-10 22:45:38,978 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 52 [2024-11-10 22:45:38,979 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 55 [2024-11-10 22:45:38,979 INFO L73 IsDeterministic]: Start isDeterministic. Operand 169 states and 224 transitions. [2024-11-10 22:45:38,979 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-10 22:45:38,979 INFO L218 hiAutomatonCegarLoop]: Abstraction has 169 states and 224 transitions. [2024-11-10 22:45:38,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states and 224 transitions. [2024-11-10 22:45:38,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 166. [2024-11-10 22:45:38,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 166 states have (on average 1.3313253012048192) internal successors, (221), 165 states have internal predecessors, (221), 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) [2024-11-10 22:45:38,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 221 transitions. [2024-11-10 22:45:38,989 INFO L240 hiAutomatonCegarLoop]: Abstraction has 166 states and 221 transitions. [2024-11-10 22:45:38,992 INFO L425 stractBuchiCegarLoop]: Abstraction has 166 states and 221 transitions. [2024-11-10 22:45:38,992 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-10 22:45:38,992 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 166 states and 221 transitions. [2024-11-10 22:45:38,994 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 42 [2024-11-10 22:45:38,994 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-10 22:45:38,994 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-10 22:45:38,994 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-11-10 22:45:38,994 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:45:38,995 INFO L745 eck$LassoCheckResult]: Stem: 693#ULTIMATE.startENTRY 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); 694#ULTIMATE.init_returnLabel#1 assume true;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; 745#L29 assume true; 814#L29-1 assume !false; 807#L30-1 [2024-11-10 22:45:38,995 INFO L747 eck$LassoCheckResult]: Loop: 807#L30-1 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 725#L36 assume 8466 == main_~s__state~0#1; 726#L37 assume true; 734#L69 assume !(0 == main_~blastFlag~0#1); 747#L72 assume !(0 != main_~s__hit~0#1);main_~s__state~0#1 := 8512; 736#L77 assume true; 737#L29 assume true; 715#L29-1 assume !false; 716#L30-1 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 739#L36 assume !(8466 == main_~s__state~0#1); 741#L41 assume 8512 == main_~s__state~0#1; 742#L42 assume true;havoc main_#t~nondet5#1;main_~tmp___1~0#1 := main_#t~nondet5#1; 721#L81 assume 0 != main_~tmp___1~0#1;main_~s__state~0#1 := 8466; 722#L77 assume true; 816#L29 assume true; 812#L29-1 assume !false; 807#L30-1 [2024-11-10 22:45:38,995 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:45:38,996 INFO L85 PathProgramCache]: Analyzing trace with hash 2677151, now seen corresponding path program 1 times [2024-11-10 22:45:38,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:45:38,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465821373] [2024-11-10 22:45:38,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:45:38,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:45:39,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:45:39,002 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 22:45:39,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:45:39,007 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 22:45:39,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:45:39,007 INFO L85 PathProgramCache]: Analyzing trace with hash 1206839380, now seen corresponding path program 1 times [2024-11-10 22:45:39,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:45:39,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009585104] [2024-11-10 22:45:39,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:45:39,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:45:39,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:45:39,014 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 22:45:39,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:45:39,018 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 22:45:39,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:45:39,019 INFO L85 PathProgramCache]: Analyzing trace with hash -1105410574, now seen corresponding path program 1 times [2024-11-10 22:45:39,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:45:39,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321325570] [2024-11-10 22:45:39,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:45:39,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:45:39,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:45:39,068 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-10 22:45:39,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:45:39,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321325570] [2024-11-10 22:45:39,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321325570] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:45:39,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:45:39,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:45:39,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849669225] [2024-11-10 22:45:39,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:45:39,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:45:39,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 22:45:39,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 22:45:39,131 INFO L87 Difference]: Start difference. First operand 166 states and 221 transitions. cyclomatic complexity: 61 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) [2024-11-10 22:45:39,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 22:45:39,157 INFO L93 Difference]: Finished difference Result 182 states and 235 transitions. [2024-11-10 22:45:39,157 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 182 states and 235 transitions. [2024-11-10 22:45:39,158 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 42 [2024-11-10 22:45:39,160 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 182 states to 174 states and 227 transitions. [2024-11-10 22:45:39,160 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 52 [2024-11-10 22:45:39,160 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 52 [2024-11-10 22:45:39,164 INFO L73 IsDeterministic]: Start isDeterministic. Operand 174 states and 227 transitions. [2024-11-10 22:45:39,164 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-10 22:45:39,164 INFO L218 hiAutomatonCegarLoop]: Abstraction has 174 states and 227 transitions. [2024-11-10 22:45:39,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states and 227 transitions. [2024-11-10 22:45:39,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2024-11-10 22:45:39,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 174 states have (on average 1.3045977011494252) internal successors, (227), 173 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:45:39,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 227 transitions. [2024-11-10 22:45:39,176 INFO L240 hiAutomatonCegarLoop]: Abstraction has 174 states and 227 transitions. [2024-11-10 22:45:39,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 22:45:39,177 INFO L425 stractBuchiCegarLoop]: Abstraction has 174 states and 227 transitions. [2024-11-10 22:45:39,177 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-10 22:45:39,177 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 174 states and 227 transitions. [2024-11-10 22:45:39,178 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 42 [2024-11-10 22:45:39,178 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-10 22:45:39,178 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-10 22:45:39,179 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:45:39,179 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:45:39,179 INFO L745 eck$LassoCheckResult]: Stem: 1049#ULTIMATE.startENTRY 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); 1050#ULTIMATE.init_returnLabel#1 assume true;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; 1102#L29 assume true; 1072#L29-1 assume !false; 1073#L30-1 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 1167#L36 assume 8466 == main_~s__state~0#1; 1164#L37 assume true; 1153#L69 assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2; 1151#L72 assume !(0 != main_~s__hit~0#1);main_~s__state~0#1 := 8512; 1108#L77 [2024-11-10 22:45:39,179 INFO L747 eck$LassoCheckResult]: Loop: 1108#L77 assume true; 1148#L29 assume true; 1145#L29-1 assume !false; 1142#L30-1 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 1140#L36 assume 8466 == main_~s__state~0#1; 1090#L37 assume true; 1091#L69 assume !(0 == main_~blastFlag~0#1); 1107#L72 assume !(0 != main_~s__hit~0#1);main_~s__state~0#1 := 8512; 1108#L77 [2024-11-10 22:45:39,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:45:39,179 INFO L85 PathProgramCache]: Analyzing trace with hash 917370091, now seen corresponding path program 1 times [2024-11-10 22:45:39,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:45:39,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054748078] [2024-11-10 22:45:39,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:45:39,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:45:39,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:45:39,185 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 22:45:39,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:45:39,189 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 22:45:39,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:45:39,190 INFO L85 PathProgramCache]: Analyzing trace with hash -1989052379, now seen corresponding path program 1 times [2024-11-10 22:45:39,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:45:39,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443977394] [2024-11-10 22:45:39,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:45:39,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:45:39,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:45:39,193 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 22:45:39,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:45:39,199 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 22:45:39,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:45:39,200 INFO L85 PathProgramCache]: Analyzing trace with hash -2089229553, now seen corresponding path program 1 times [2024-11-10 22:45:39,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:45:39,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032475874] [2024-11-10 22:45:39,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:45:39,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:45:39,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:45:39,236 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:45:39,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:45:39,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032475874] [2024-11-10 22:45:39,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032475874] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:45:39,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:45:39,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:45:39,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919236867] [2024-11-10 22:45:39,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:45:39,278 INFO L204 LassoAnalysis]: Preferences: [2024-11-10 22:45:39,278 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-10 22:45:39,278 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-10 22:45:39,278 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-10 22:45:39,278 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-10 22:45:39,278 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:45:39,279 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-10 22:45:39,279 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-10 22:45:39,279 INFO L132 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration4_Loop [2024-11-10 22:45:39,279 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-10 22:45:39,279 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-10 22:45:39,279 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:45:39,282 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:45:39,286 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:45:39,338 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-10 22:45:39,338 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-10 22:45:39,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:45:39,338 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:45:39,340 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) [2024-11-10 22:45:39,341 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 [2024-11-10 22:45:39,342 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-10 22:45:39,342 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-10 22:45:39,353 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-10 22:45:39,353 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: [] [2024-11-10 22:45:39,363 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2024-11-10 22:45:39,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:45:39,364 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:45:39,365 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) [2024-11-10 22:45:39,366 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 [2024-11-10 22:45:39,367 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-10 22:45:39,367 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-10 22:45:39,387 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-10 22:45:39,387 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: [] [2024-11-10 22:45:39,401 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2024-11-10 22:45:39,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:45:39,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:45:39,404 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) [2024-11-10 22:45:39,405 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 [2024-11-10 22:45:39,405 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-10 22:45:39,405 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-10 22:45:39,433 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 [2024-11-10 22:45:39,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:45:39,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:45:39,436 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) [2024-11-10 22:45:39,436 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 [2024-11-10 22:45:39,438 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-10 22:45:39,438 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-10 22:45:39,451 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-10 22:45:39,466 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2024-11-10 22:45:39,466 INFO L204 LassoAnalysis]: Preferences: [2024-11-10 22:45:39,466 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-10 22:45:39,466 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-10 22:45:39,466 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-10 22:45:39,466 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-10 22:45:39,466 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:45:39,466 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-10 22:45:39,466 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-10 22:45:39,466 INFO L132 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1b.cil.c_Iteration4_Loop [2024-11-10 22:45:39,467 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-10 22:45:39,467 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-10 22:45:39,467 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:45:39,470 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:45:39,478 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-10 22:45:39,532 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-10 22:45:39,532 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-10 22:45:39,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:45:39,533 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:45:39,534 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) [2024-11-10 22:45:39,536 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 [2024-11-10 22:45:39,537 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 [2024-11-10 22:45:39,549 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-10 22:45:39,550 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-10 22:45:39,550 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-10 22:45:39,550 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-10 22:45:39,550 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-10 22:45:39,551 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-10 22:45:39,551 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-10 22:45:39,553 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-10 22:45:39,568 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 [2024-11-10 22:45:39,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:45:39,568 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:45:39,569 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) [2024-11-10 22:45:39,571 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 [2024-11-10 22:45:39,572 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 [2024-11-10 22:45:39,582 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-10 22:45:39,582 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-10 22:45:39,582 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-10 22:45:39,582 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-11-10 22:45:39,582 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-10 22:45:39,583 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2024-11-10 22:45:39,583 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-10 22:45:39,586 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-10 22:45:39,600 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 [2024-11-10 22:45:39,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:45:39,601 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:45:39,602 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) [2024-11-10 22:45:39,603 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 [2024-11-10 22:45:39,604 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 [2024-11-10 22:45:39,617 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-10 22:45:39,617 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-10 22:45:39,617 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-10 22:45:39,618 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-10 22:45:39,618 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-10 22:45:39,619 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-10 22:45:39,619 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-10 22:45:39,622 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-10 22:45:39,625 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-10 22:45:39,625 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-10 22:45:39,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 22:45:39,625 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:45:39,627 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) [2024-11-10 22:45:39,628 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 [2024-11-10 22:45:39,629 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-10 22:45:39,629 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-10 22:45:39,629 INFO L474 LassoAnalysis]: Proved termination. [2024-11-10 22:45:39,629 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 [] [2024-11-10 22:45:39,643 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 [2024-11-10 22:45:39,644 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-10 22:45:39,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:45:39,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:45:39,665 INFO L255 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-10 22:45:39,665 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:45:39,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:45:39,680 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-10 22:45:39,681 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:45:39,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:45:39,699 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 [2024-11-10 22:45:39,699 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 174 states and 227 transitions. cyclomatic complexity: 59 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) [2024-11-10 22:45:39,733 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 174 states and 227 transitions. cyclomatic complexity: 59. 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 472 states and 609 transitions. Complement of second has 7 states. [2024-11-10 22:45:39,736 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 [2024-11-10 22:45:39,764 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) [2024-11-10 22:45:39,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 45 transitions. [2024-11-10 22:45:39,764 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 45 transitions. Stem has 9 letters. Loop has 8 letters. [2024-11-10 22:45:39,765 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-10 22:45:39,765 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 45 transitions. Stem has 17 letters. Loop has 8 letters. [2024-11-10 22:45:39,765 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-10 22:45:39,765 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 45 transitions. Stem has 9 letters. Loop has 16 letters. [2024-11-10 22:45:39,765 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-10 22:45:39,765 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 472 states and 609 transitions. [2024-11-10 22:45:39,773 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 68 [2024-11-10 22:45:39,779 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 472 states to 430 states and 562 transitions. [2024-11-10 22:45:39,779 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 114 [2024-11-10 22:45:39,780 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 116 [2024-11-10 22:45:39,781 INFO L73 IsDeterministic]: Start isDeterministic. Operand 430 states and 562 transitions. [2024-11-10 22:45:39,781 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-10 22:45:39,781 INFO L218 hiAutomatonCegarLoop]: Abstraction has 430 states and 562 transitions. [2024-11-10 22:45:39,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states and 562 transitions. [2024-11-10 22:45:39,798 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 [2024-11-10 22:45:39,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 389. [2024-11-10 22:45:39,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 389 states have (on average 1.3084832904884318) internal successors, (509), 388 states have internal predecessors, (509), 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) [2024-11-10 22:45:39,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 509 transitions. [2024-11-10 22:45:39,806 INFO L240 hiAutomatonCegarLoop]: Abstraction has 389 states and 509 transitions. [2024-11-10 22:45:39,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:45:39,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 22:45:39,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 22:45:39,806 INFO L87 Difference]: Start difference. First operand 389 states and 509 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) [2024-11-10 22:45:39,815 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 [2024-11-10 22:45:39,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 22:45:39,843 INFO L93 Difference]: Finished difference Result 345 states and 420 transitions. [2024-11-10 22:45:39,844 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 345 states and 420 transitions. [2024-11-10 22:45:39,848 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 68 [2024-11-10 22:45:39,849 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 345 states to 321 states and 396 transitions. [2024-11-10 22:45:39,850 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 104 [2024-11-10 22:45:39,851 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 104 [2024-11-10 22:45:39,851 INFO L73 IsDeterministic]: Start isDeterministic. Operand 321 states and 396 transitions. [2024-11-10 22:45:39,851 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-10 22:45:39,851 INFO L218 hiAutomatonCegarLoop]: Abstraction has 321 states and 396 transitions. [2024-11-10 22:45:39,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states and 396 transitions. [2024-11-10 22:45:39,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 174. [2024-11-10 22:45:39,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 174 states have (on average 1.2471264367816093) internal successors, (217), 173 states have internal predecessors, (217), 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) [2024-11-10 22:45:39,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 217 transitions. [2024-11-10 22:45:39,859 INFO L240 hiAutomatonCegarLoop]: Abstraction has 174 states and 217 transitions. [2024-11-10 22:45:39,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 22:45:39,860 INFO L425 stractBuchiCegarLoop]: Abstraction has 174 states and 217 transitions. [2024-11-10 22:45:39,860 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-11-10 22:45:39,860 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 174 states and 217 transitions. [2024-11-10 22:45:39,861 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 42 [2024-11-10 22:45:39,861 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-10 22:45:39,862 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-10 22:45:39,862 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:45:39,862 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:45:39,862 INFO L745 eck$LassoCheckResult]: Stem: 2504#ULTIMATE.startENTRY 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); 2505#ULTIMATE.init_returnLabel#1 assume true;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; 2553#L29 assume true; 2526#L29-1 assume !false; 2527#L30-1 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 2673#L36 assume 8466 == main_~s__state~0#1; 2672#L37 assume true; 2568#L69 assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2; 2565#L72 assume !(0 != main_~s__hit~0#1);main_~s__state~0#1 := 8512; 2563#L77 [2024-11-10 22:45:39,862 INFO L747 eck$LassoCheckResult]: Loop: 2563#L77 assume true; 2562#L29 assume true; 2561#L29-1 assume !false; 2560#L30-1 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 2559#L36 assume !(8466 == main_~s__state~0#1); 2550#L41 assume 8512 == main_~s__state~0#1; 2551#L42 assume true;havoc main_#t~nondet5#1;main_~tmp___1~0#1 := main_#t~nondet5#1; 2581#L81 assume 0 != main_~tmp___1~0#1;main_~s__state~0#1 := 8466; 2580#L77 assume true; 2578#L29 assume true; 2576#L29-1 assume !false; 2574#L30-1 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 2570#L36 assume 8466 == main_~s__state~0#1; 2569#L37 assume true; 2567#L69 assume !(0 == main_~blastFlag~0#1); 2564#L72 assume !(0 != main_~s__hit~0#1);main_~s__state~0#1 := 8512; 2563#L77 [2024-11-10 22:45:39,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:45:39,863 INFO L85 PathProgramCache]: Analyzing trace with hash 917370091, now seen corresponding path program 2 times [2024-11-10 22:45:39,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:45:39,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032426564] [2024-11-10 22:45:39,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:45:39,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:45:39,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:45:39,870 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 22:45:39,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:45:39,874 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 22:45:39,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:45:39,874 INFO L85 PathProgramCache]: Analyzing trace with hash -640482930, now seen corresponding path program 2 times [2024-11-10 22:45:39,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:45:39,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000181104] [2024-11-10 22:45:39,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:45:39,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:45:39,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:45:39,880 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 22:45:39,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:45:39,883 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 22:45:39,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:45:39,884 INFO L85 PathProgramCache]: Analyzing trace with hash -1185029512, now seen corresponding path program 1 times [2024-11-10 22:45:39,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:45:39,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268645436] [2024-11-10 22:45:39,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:45:39,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:45:39,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:45:39,891 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 22:45:39,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:45:39,898 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 22:45:40,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:45:40,107 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 22:45:40,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:45:40,136 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 10.11 10:45:40 BoogieIcfgContainer [2024-11-10 22:45:40,136 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-10 22:45:40,137 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-10 22:45:40,137 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-10 22:45:40,138 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-10 22:45:40,138 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:45:37" (3/4) ... [2024-11-10 22:45:40,139 INFO L140 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-10 22:45:40,174 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-10 22:45:40,174 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-10 22:45:40,175 INFO L158 Benchmark]: Toolchain (without parser) took 3827.81ms. Allocated memory was 184.5MB in the beginning and 251.7MB in the end (delta: 67.1MB). Free memory was 127.8MB in the beginning and 180.4MB in the end (delta: -52.6MB). Peak memory consumption was 17.6MB. Max. memory is 16.1GB. [2024-11-10 22:45:40,175 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 184.5MB. Free memory was 149.5MB in the beginning and 149.2MB in the end (delta: 318.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 22:45:40,176 INFO L158 Benchmark]: CACSL2BoogieTranslator took 290.20ms. Allocated memory is still 184.5MB. Free memory was 127.8MB in the beginning and 115.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-10 22:45:40,176 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.87ms. Allocated memory is still 184.5MB. Free memory was 115.2MB in the beginning and 113.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-10 22:45:40,176 INFO L158 Benchmark]: Boogie Preprocessor took 24.93ms. Allocated memory is still 184.5MB. Free memory was 113.8MB in the beginning and 112.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-10 22:45:40,176 INFO L158 Benchmark]: IcfgBuilder took 313.23ms. Allocated memory is still 184.5MB. Free memory was 112.2MB in the beginning and 100.1MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-10 22:45:40,177 INFO L158 Benchmark]: BuchiAutomizer took 3129.85ms. Allocated memory was 184.5MB in the beginning and 251.7MB in the end (delta: 67.1MB). Free memory was 100.1MB in the beginning and 182.5MB in the end (delta: -82.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 22:45:40,177 INFO L158 Benchmark]: Witness Printer took 37.26ms. Allocated memory is still 251.7MB. Free memory was 182.5MB in the beginning and 180.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-10 22:45:40,179 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 184.5MB. Free memory was 149.5MB in the beginning and 149.2MB in the end (delta: 318.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 290.20ms. Allocated memory is still 184.5MB. Free memory was 127.8MB in the beginning and 115.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.87ms. Allocated memory is still 184.5MB. Free memory was 115.2MB in the beginning and 113.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.93ms. Allocated memory is still 184.5MB. Free memory was 113.8MB in the beginning and 112.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 313.23ms. Allocated memory is still 184.5MB. Free memory was 112.2MB in the beginning and 100.1MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 3129.85ms. Allocated memory was 184.5MB in the beginning and 251.7MB in the end (delta: 67.1MB). Free memory was 100.1MB in the beginning and 182.5MB in the end (delta: -82.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 37.26ms. Allocated memory is still 251.7MB. Free memory was 182.5MB in the beginning and 180.4MB 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 6 terminating modules (3 trivial, 3 deterministic, 0 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function (8576 + ((long long) -1 * s__state)) and consists of 6 locations. One deterministic module has affine ranking function (((long long) -1 * blastFlag) + 1) and consists of 3 locations. One deterministic module has affine ranking function (((long long) -1 * s__state) + 8489) and consists of 4 locations. 3 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 174 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.0s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 2.0s. Construction of modules took 0.2s. Büchi inclusion checks took 0.6s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 6. Automata minimization 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 214 StatesRemovedByMinimization, 5 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 5/5 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 118 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 115 mSDsluCounter, 336 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 138 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 171 IncrementalHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 198 mSDtfsCounter, 171 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT1 conc1 concLT2 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax100 hnf100 lsp56 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq192 hnf87 smp100 dnf104 smp95 tf114 neg100 sie104 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 17ms VariablesStem: 0 VariablesLoop: 1 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 0 MotzkinApplications: 4 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 145]: 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] Loop: [L29] COND TRUE 1 [L30] COND FALSE !(s__state <= 8512 && blastFlag > 2) [L36] COND FALSE !(s__state == 8466) [L41] COND TRUE s__state == 8512 [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 End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 145]: 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] Loop: [L29] COND TRUE 1 [L30] COND FALSE !(s__state <= 8512 && blastFlag > 2) [L36] COND FALSE !(s__state == 8466) [L41] COND TRUE s__state == 8512 [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 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-11-10 22:45:40,198 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)