./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/bitvector/soft_float_5a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/bitvector/soft_float_5a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB --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 f6c91769726962c1478685c30d57ac239987d5f8a5f6832d1d60b9c031f35855 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:48:07,979 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:48:08,051 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-28 04:48:08,058 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:48:08,058 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:48:08,111 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:48:08,112 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:48:08,113 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:48:08,113 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:48:08,114 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:48:08,116 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:48:08,116 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:48:08,117 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:48:08,117 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-28 04:48:08,117 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-28 04:48:08,117 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-28 04:48:08,117 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-28 04:48:08,118 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-28 04:48:08,118 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-28 04:48:08,118 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:48:08,118 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-28 04:48:08,119 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:48:08,119 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:48:08,119 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:48:08,119 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:48:08,119 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-28 04:48:08,119 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-28 04:48:08,120 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-28 04:48:08,120 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 04:48:08,120 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:48:08,120 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:48:08,120 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-28 04:48:08,120 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:48:08,120 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:48:08,120 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:48:08,121 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:48:08,121 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:48:08,122 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL_NO_AM [2024-11-28 04:48:08,122 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-28 04:48:08,122 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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 -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB 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 -> f6c91769726962c1478685c30d57ac239987d5f8a5f6832d1d60b9c031f35855 [2024-11-28 04:48:08,532 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:48:08,548 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:48:08,552 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:48:08,554 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:48:08,555 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:48:08,558 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/bitvector/soft_float_5a.c.cil.c [2024-11-28 04:48:11,685 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/data/212b43b60/426e12325788447a895a410f5b326683/FLAG237756b8c [2024-11-28 04:48:11,983 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:48:11,983 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/sv-benchmarks/c/bitvector/soft_float_5a.c.cil.c [2024-11-28 04:48:12,015 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/data/212b43b60/426e12325788447a895a410f5b326683/FLAG237756b8c [2024-11-28 04:48:12,034 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/data/212b43b60/426e12325788447a895a410f5b326683 [2024-11-28 04:48:12,037 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:48:12,039 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:48:12,040 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:48:12,040 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:48:12,045 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:48:12,047 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:48:12" (1/1) ... [2024-11-28 04:48:12,048 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d984493 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:48:12, skipping insertion in model container [2024-11-28 04:48:12,048 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:48:12" (1/1) ... [2024-11-28 04:48:12,076 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:48:12,275 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:48:12,287 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:48:12,324 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:48:12,338 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:48:12,338 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:48:12 WrapperNode [2024-11-28 04:48:12,338 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:48:12,339 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:48:12,339 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:48:12,339 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:48:12,346 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:48:12" (1/1) ... [2024-11-28 04:48:12,354 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:48:12" (1/1) ... [2024-11-28 04:48:12,389 INFO L138 Inliner]: procedures = 17, calls = 16, calls flagged for inlining = 11, calls inlined = 9, statements flattened = 368 [2024-11-28 04:48:12,389 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:48:12,389 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:48:12,389 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:48:12,390 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:48:12,403 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:48:12" (1/1) ... [2024-11-28 04:48:12,404 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:48:12" (1/1) ... [2024-11-28 04:48:12,408 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:48:12" (1/1) ... [2024-11-28 04:48:12,436 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]. [2024-11-28 04:48:12,437 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:48:12" (1/1) ... [2024-11-28 04:48:12,437 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:48:12" (1/1) ... [2024-11-28 04:48:12,445 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:48:12" (1/1) ... [2024-11-28 04:48:12,450 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:48:12" (1/1) ... [2024-11-28 04:48:12,460 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:48:12" (1/1) ... [2024-11-28 04:48:12,465 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:48:12" (1/1) ... [2024-11-28 04:48:12,466 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:48:12" (1/1) ... [2024-11-28 04:48:12,472 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:48:12,473 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:48:12,473 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:48:12,473 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:48:12,474 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:48:12" (1/1) ... [2024-11-28 04:48:12,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:48:12,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:48:12,524 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:48:12,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-28 04:48:12,552 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:48:12,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 04:48:12,553 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:48:12,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:48:12,618 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:48:12,620 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:48:13,184 INFO L? ?]: Removed 119 outVars from TransFormulas that were not future-live. [2024-11-28 04:48:13,184 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:48:13,196 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:48:13,196 INFO L312 CfgBuilder]: Removed 16 assume(true) statements. [2024-11-28 04:48:13,197 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:48:13 BoogieIcfgContainer [2024-11-28 04:48:13,197 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:48:13,198 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-28 04:48:13,198 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-28 04:48:13,205 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-28 04:48:13,206 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-28 04:48:13,206 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 04:48:12" (1/3) ... [2024-11-28 04:48:13,207 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@717a0124 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 04:48:13, skipping insertion in model container [2024-11-28 04:48:13,208 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-28 04:48:13,208 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:48:12" (2/3) ... [2024-11-28 04:48:13,210 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@717a0124 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 04:48:13, skipping insertion in model container [2024-11-28 04:48:13,210 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-28 04:48:13,210 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:48:13" (3/3) ... [2024-11-28 04:48:13,212 INFO L363 chiAutomizerObserver]: Analyzing ICFG soft_float_5a.c.cil.c [2024-11-28 04:48:13,272 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-28 04:48:13,272 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-28 04:48:13,272 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-28 04:48:13,272 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-28 04:48:13,272 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-28 04:48:13,273 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-28 04:48:13,273 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-28 04:48:13,273 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-28 04:48:13,280 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 109 states, 108 states have (on average 1.712962962962963) internal successors, (185), 108 states have internal predecessors, (185), 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) [2024-11-28 04:48:13,308 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 16 [2024-11-28 04:48:13,309 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 04:48:13,309 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 04:48:13,314 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-11-28 04:48:13,314 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-28 04:48:13,314 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-28 04:48:13,315 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 109 states, 108 states have (on average 1.712962962962963) internal successors, (185), 108 states have internal predecessors, (185), 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) [2024-11-28 04:48:13,323 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 16 [2024-11-28 04:48:13,324 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 04:48:13,324 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 04:48:13,324 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-11-28 04:48:13,324 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-28 04:48:13,333 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(22, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~ret19#1, main_#t~ret20#1, main_#t~ret21#1, main_#t~ret22#1, main_#t~ret23#1, main_~a~0#1, main_~ma~2#1, main_~ea~2#1, main_~b~0#1, main_~mb~2#1, main_~eb~2#1, main_~r_mul~0#1, main_~zero~0#1, main_~one~0#1, main_~sb~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~tmp___1~0#1, main_~__retres16~0#1;havoc main_~a~0#1;havoc main_#t~nondet15#1;main_~ma~2#1 := main_#t~nondet15#1;havoc main_#t~nondet15#1;havoc main_#t~nondet16#1;main_~ea~2#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1;havoc main_~b~0#1;havoc main_#t~nondet17#1;main_~mb~2#1 := main_#t~nondet17#1;havoc main_#t~nondet17#1;havoc main_#t~nondet18#1;main_~eb~2#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;havoc main_~r_mul~0#1;havoc main_~zero~0#1;havoc main_~one~0#1;havoc main_~sb~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~tmp___1~0#1;havoc main_~__retres16~0#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 0, 0;havoc base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1;" "assume !(0 == base2flt_~m#1 % 4294967296);" "assume !(base2flt_~m#1 % 4294967296 < 16777216);" [2024-11-28 04:48:13,333 INFO L749 eck$LassoCheckResult]: Loop: "assume base2flt_~m#1 % 4294967296 >= 33554432;" "assume !(base2flt_~e#1 >= 127);base2flt_~e#1 := 1 + base2flt_~e#1;base2flt_~m#1 := base2flt_~m#1 % 4294967296 / 2;" [2024-11-28 04:48:13,338 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:48:13,339 INFO L85 PathProgramCache]: Analyzing trace with hash 925694, now seen corresponding path program 1 times [2024-11-28 04:48:13,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 04:48:13,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690159880] [2024-11-28 04:48:13,348 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:48:13,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:48:13,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:48:13,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-28 04:48:13,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690159880] [2024-11-28 04:48:13,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690159880] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:48:13,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1226148551] [2024-11-28 04:48:13,655 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:48:13,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:48:13,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:48:13,658 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:48:13,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 04:48:13,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:48:13,725 INFO L256 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:48:13,732 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:48:13,760 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:48:13,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1226148551] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:48:13,781 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:48:13,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 3 [2024-11-28 04:48:13,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121997489] [2024-11-28 04:48:13,788 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:48:13,792 INFO L752 eck$LassoCheckResult]: stem already infeasible [2024-11-28 04:48:13,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:48:13,793 INFO L85 PathProgramCache]: Analyzing trace with hash 2409, now seen corresponding path program 1 times [2024-11-28 04:48:13,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 04:48:13,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826936038] [2024-11-28 04:48:13,793 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:48:13,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:48:13,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:48:13,808 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:48:13,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:48:13,834 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 04:48:13,898 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 04:48:13,899 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 04:48:13,899 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 04:48:13,900 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 04:48:13,900 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-28 04:48:13,900 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:48:13,900 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 04:48:13,900 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 04:48:13,900 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_5a.c.cil.c_Iteration1_Loop [2024-11-28 04:48:13,900 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 04:48:13,901 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 04:48:13,915 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:48:13,936 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:48:14,078 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 04:48:14,079 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-28 04:48:14,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:48:14,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:48:14,084 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:48:14,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-11-28 04:48:14,089 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 04:48:14,089 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 04:48:14,122 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2024-11-28 04:48:14,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:48:14,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:48:14,126 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:48:14,129 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-28 04:48:14,130 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 04:48:14,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-11-28 04:48:14,161 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-28 04:48:14,165 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2024-11-28 04:48:14,166 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 04:48:14,166 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 04:48:14,166 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 04:48:14,166 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 04:48:14,166 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-28 04:48:14,167 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:48:14,167 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 04:48:14,167 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 04:48:14,167 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_5a.c.cil.c_Iteration1_Loop [2024-11-28 04:48:14,167 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 04:48:14,167 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 04:48:14,169 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:48:14,178 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:48:14,303 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 04:48:14,307 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-28 04:48:14,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:48:14,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:48:14,310 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:48:14,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-11-28 04:48:14,317 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 [2024-11-28 04:48:14,332 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 04:48:14,332 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 04:48:14,333 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 04:48:14,333 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 04:48:14,333 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 04:48:14,341 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 04:48:14,342 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 04:48:14,347 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 04:48:14,356 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2024-11-28 04:48:14,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:48:14,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:48:14,359 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:48:14,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-11-28 04:48:14,365 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 [2024-11-28 04:48:14,381 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 04:48:14,381 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 04:48:14,381 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 04:48:14,381 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 04:48:14,381 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 04:48:14,385 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 04:48:14,385 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 04:48:14,389 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-28 04:48:14,394 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-28 04:48:14,396 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-28 04:48:14,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:48:14,399 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:48:14,402 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:48:14,405 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-11-28 04:48:14,407 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-28 04:48:14,407 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-28 04:48:14,407 INFO L474 LassoAnalysis]: Proved termination. [2024-11-28 04:48:14,408 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = -2*ULTIMATE.start_base2flt_~e#1 + 253 Supporting invariants [] [2024-11-28 04:48:14,416 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2024-11-28 04:48:14,419 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-28 04:48:14,447 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:48:14,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:48:14,468 INFO L256 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 04:48:14,468 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:48:14,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:48:14,480 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:48:14,480 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:48:14,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:48:14,517 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2024-11-28 04:48:14,519 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 109 states, 108 states have (on average 1.712962962962963) internal successors, (185), 108 states have internal predecessors, (185), 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 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2024-11-28 04:48:14,630 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 109 states, 108 states have (on average 1.712962962962963) internal successors, (185), 108 states have internal predecessors, (185), 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 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 326 states and 545 transitions. Complement of second has 6 states. [2024-11-28 04:48:14,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-28 04:48:14,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2024-11-28 04:48:14,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 358 transitions. [2024-11-28 04:48:14,646 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 358 transitions. Stem has 4 letters. Loop has 2 letters. [2024-11-28 04:48:14,647 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 04:48:14,647 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 358 transitions. Stem has 6 letters. Loop has 2 letters. [2024-11-28 04:48:14,647 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 04:48:14,647 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 358 transitions. Stem has 4 letters. Loop has 4 letters. [2024-11-28 04:48:14,647 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 04:48:14,648 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 326 states and 545 transitions. [2024-11-28 04:48:14,657 INFO L131 ngComponentsAnalysis]: Automaton has 13 accepting balls. 26 [2024-11-28 04:48:14,662 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 326 states to 106 states and 172 transitions. [2024-11-28 04:48:14,663 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 102 [2024-11-28 04:48:14,663 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 104 [2024-11-28 04:48:14,664 INFO L73 IsDeterministic]: Start isDeterministic. Operand 106 states and 172 transitions. [2024-11-28 04:48:14,664 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-28 04:48:14,664 INFO L218 hiAutomatonCegarLoop]: Abstraction has 106 states and 172 transitions. [2024-11-28 04:48:14,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states and 172 transitions. [2024-11-28 04:48:14,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 90. [2024-11-28 04:48:14,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 90 states have (on average 1.6777777777777778) internal successors, (151), 89 states have internal predecessors, (151), 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) [2024-11-28 04:48:14,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 151 transitions. [2024-11-28 04:48:14,693 INFO L240 hiAutomatonCegarLoop]: Abstraction has 90 states and 151 transitions. [2024-11-28 04:48:14,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-28 04:48:14,695 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:48:14,695 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:48:14,696 INFO L87 Difference]: Start difference. First operand 90 states and 151 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:48:14,868 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2024-11-28 04:48:14,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:48:14,888 INFO L93 Difference]: Finished difference Result 45 states and 63 transitions. [2024-11-28 04:48:14,888 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 63 transitions. [2024-11-28 04:48:14,889 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 10 [2024-11-28 04:48:14,890 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 45 states and 63 transitions. [2024-11-28 04:48:14,890 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 45 [2024-11-28 04:48:14,890 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 45 [2024-11-28 04:48:14,890 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 63 transitions. [2024-11-28 04:48:14,890 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-28 04:48:14,890 INFO L218 hiAutomatonCegarLoop]: Abstraction has 45 states and 63 transitions. [2024-11-28 04:48:14,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states and 63 transitions. [2024-11-28 04:48:14,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 41. [2024-11-28 04:48:14,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 41 states have (on average 1.4390243902439024) internal successors, (59), 40 states have internal predecessors, (59), 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) [2024-11-28 04:48:14,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 59 transitions. [2024-11-28 04:48:14,896 INFO L240 hiAutomatonCegarLoop]: Abstraction has 41 states and 59 transitions. [2024-11-28 04:48:14,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:48:14,901 INFO L425 stractBuchiCegarLoop]: Abstraction has 41 states and 59 transitions. [2024-11-28 04:48:14,901 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-28 04:48:14,901 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 41 states and 59 transitions. [2024-11-28 04:48:14,902 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 10 [2024-11-28 04:48:14,902 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 04:48:14,902 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 04:48:14,902 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:48:14,902 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-28 04:48:14,903 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(22, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~ret19#1, main_#t~ret20#1, main_#t~ret21#1, main_#t~ret22#1, main_#t~ret23#1, main_~a~0#1, main_~ma~2#1, main_~ea~2#1, main_~b~0#1, main_~mb~2#1, main_~eb~2#1, main_~r_mul~0#1, main_~zero~0#1, main_~one~0#1, main_~sb~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~tmp___1~0#1, main_~__retres16~0#1;havoc main_~a~0#1;havoc main_#t~nondet15#1;main_~ma~2#1 := main_#t~nondet15#1;havoc main_#t~nondet15#1;havoc main_#t~nondet16#1;main_~ea~2#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1;havoc main_~b~0#1;havoc main_#t~nondet17#1;main_~mb~2#1 := main_#t~nondet17#1;havoc main_#t~nondet17#1;havoc main_#t~nondet18#1;main_~eb~2#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;havoc main_~r_mul~0#1;havoc main_~zero~0#1;havoc main_~one~0#1;havoc main_~sb~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~tmp___1~0#1;havoc main_~__retres16~0#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 0, 0;havoc base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1;" "assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0;" "base2flt_#res#1 := base2flt_~__retres4~0#1;" "main_#t~ret19#1 := base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;havoc base2flt_#in~m#1, base2flt_#in~e#1;assume { :end_inline_base2flt } true;main_~zero~0#1 := main_#t~ret19#1;havoc main_#t~ret19#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 1, 0;havoc base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1;" "assume !(0 == base2flt_~m#1 % 4294967296);" "assume base2flt_~m#1 % 4294967296 < 16777216;" [2024-11-28 04:48:14,903 INFO L749 eck$LassoCheckResult]: Loop: "assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * (base2flt_~m#1 % 4294967296);" "assume base2flt_~m#1 % 4294967296 < 16777216;" [2024-11-28 04:48:14,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:48:14,903 INFO L85 PathProgramCache]: Analyzing trace with hash 1807274247, now seen corresponding path program 1 times [2024-11-28 04:48:14,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 04:48:14,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765622153] [2024-11-28 04:48:14,904 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:48:14,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:48:14,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:48:14,926 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:48:14,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:48:14,945 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 04:48:14,945 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:48:14,945 INFO L85 PathProgramCache]: Analyzing trace with hash 4388, now seen corresponding path program 1 times [2024-11-28 04:48:14,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 04:48:14,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482007906] [2024-11-28 04:48:14,946 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:48:14,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:48:14,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:48:14,956 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:48:14,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:48:14,964 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 04:48:14,965 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:48:14,965 INFO L85 PathProgramCache]: Analyzing trace with hash 1623767210, now seen corresponding path program 1 times [2024-11-28 04:48:14,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 04:48:14,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072788411] [2024-11-28 04:48:14,965 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:48:14,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:48:14,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:48:14,986 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:48:15,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:48:15,007 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 04:48:15,056 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 04:48:15,056 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 04:48:15,056 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 04:48:15,056 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 04:48:15,056 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-28 04:48:15,056 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:48:15,057 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 04:48:15,057 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 04:48:15,057 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_5a.c.cil.c_Iteration2_Loop [2024-11-28 04:48:15,057 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 04:48:15,057 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 04:48:15,058 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:48:15,068 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:48:15,217 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 04:48:15,217 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-28 04:48:15,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:48:15,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:48:15,219 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:48:15,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-11-28 04:48:15,226 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 04:48:15,226 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 04:48:15,251 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2024-11-28 04:48:15,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:48:15,251 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:48:15,253 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:48:15,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-11-28 04:48:15,257 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-28 04:48:15,258 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 04:48:15,296 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-28 04:48:15,300 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2024-11-28 04:48:15,301 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 04:48:15,301 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 04:48:15,301 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 04:48:15,301 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 04:48:15,301 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-28 04:48:15,301 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:48:15,302 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 04:48:15,302 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 04:48:15,302 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_5a.c.cil.c_Iteration2_Loop [2024-11-28 04:48:15,302 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 04:48:15,302 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 04:48:15,304 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:48:15,312 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:48:15,457 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 04:48:15,457 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-28 04:48:15,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:48:15,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:48:15,460 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:48:15,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-11-28 04:48:15,465 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 [2024-11-28 04:48:15,479 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 04:48:15,479 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 04:48:15,480 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 04:48:15,480 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 04:48:15,480 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 04:48:15,483 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 04:48:15,483 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 04:48:15,486 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-28 04:48:15,493 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-28 04:48:15,493 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-28 04:48:15,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:48:15,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:48:15,498 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:48:15,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-11-28 04:48:15,502 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-28 04:48:15,502 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-28 04:48:15,502 INFO L474 LassoAnalysis]: Proved termination. [2024-11-28 04:48:15,502 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = 2*ULTIMATE.start_base2flt_~e#1 + 255 Supporting invariants [] [2024-11-28 04:48:15,511 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2024-11-28 04:48:15,512 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-28 04:48:15,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:48:15,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:48:15,557 INFO L256 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 04:48:15,558 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:48:15,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:48:15,581 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:48:15,582 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:48:15,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:48:15,617 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 [2024-11-28 04:48:15,617 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 41 states and 59 transitions. cyclomatic complexity: 23 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:48:15,661 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 41 states and 59 transitions. cyclomatic complexity: 23. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 75 states and 107 transitions. Complement of second has 5 states. [2024-11-28 04:48:15,664 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 [2024-11-28 04:48:15,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:48:15,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 55 transitions. [2024-11-28 04:48:15,666 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 55 transitions. Stem has 7 letters. Loop has 2 letters. [2024-11-28 04:48:15,666 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 04:48:15,666 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 55 transitions. Stem has 9 letters. Loop has 2 letters. [2024-11-28 04:48:15,666 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 04:48:15,666 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 55 transitions. Stem has 7 letters. Loop has 4 letters. [2024-11-28 04:48:15,666 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 04:48:15,666 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 75 states and 107 transitions. [2024-11-28 04:48:15,674 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 16 [2024-11-28 04:48:15,674 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 75 states to 68 states and 98 transitions. [2024-11-28 04:48:15,675 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 63 [2024-11-28 04:48:15,675 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 66 [2024-11-28 04:48:15,675 INFO L73 IsDeterministic]: Start isDeterministic. Operand 68 states and 98 transitions. [2024-11-28 04:48:15,675 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-28 04:48:15,675 INFO L218 hiAutomatonCegarLoop]: Abstraction has 68 states and 98 transitions. [2024-11-28 04:48:15,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states and 98 transitions. [2024-11-28 04:48:15,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 43. [2024-11-28 04:48:15,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 43 states have (on average 1.441860465116279) internal successors, (62), 42 states have internal predecessors, (62), 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) [2024-11-28 04:48:15,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 62 transitions. [2024-11-28 04:48:15,681 INFO L240 hiAutomatonCegarLoop]: Abstraction has 43 states and 62 transitions. [2024-11-28 04:48:15,681 INFO L425 stractBuchiCegarLoop]: Abstraction has 43 states and 62 transitions. [2024-11-28 04:48:15,681 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-28 04:48:15,681 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 43 states and 62 transitions. [2024-11-28 04:48:15,682 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2024-11-28 04:48:15,682 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 04:48:15,682 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 04:48:15,683 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:48:15,683 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-28 04:48:15,683 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(22, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~ret19#1, main_#t~ret20#1, main_#t~ret21#1, main_#t~ret22#1, main_#t~ret23#1, main_~a~0#1, main_~ma~2#1, main_~ea~2#1, main_~b~0#1, main_~mb~2#1, main_~eb~2#1, main_~r_mul~0#1, main_~zero~0#1, main_~one~0#1, main_~sb~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~tmp___1~0#1, main_~__retres16~0#1;havoc main_~a~0#1;havoc main_#t~nondet15#1;main_~ma~2#1 := main_#t~nondet15#1;havoc main_#t~nondet15#1;havoc main_#t~nondet16#1;main_~ea~2#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1;havoc main_~b~0#1;havoc main_#t~nondet17#1;main_~mb~2#1 := main_#t~nondet17#1;havoc main_#t~nondet17#1;havoc main_#t~nondet18#1;main_~eb~2#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;havoc main_~r_mul~0#1;havoc main_~zero~0#1;havoc main_~one~0#1;havoc main_~sb~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~tmp___1~0#1;havoc main_~__retres16~0#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 0, 0;havoc base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1;" "assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0;" "base2flt_#res#1 := base2flt_~__retres4~0#1;" "main_#t~ret19#1 := base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;havoc base2flt_#in~m#1, base2flt_#in~e#1;assume { :end_inline_base2flt } true;main_~zero~0#1 := main_#t~ret19#1;havoc main_#t~ret19#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 1, 0;havoc base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1;" "assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0;" "base2flt_#res#1 := base2flt_~__retres4~0#1;" "main_#t~ret20#1 := base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;havoc base2flt_#in~m#1, base2flt_#in~e#1;assume { :end_inline_base2flt } true;main_~one~0#1 := main_#t~ret20#1;havoc main_#t~ret20#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := main_~ma~2#1, main_~ea~2#1;havoc base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1;" "assume !(0 == base2flt_~m#1 % 4294967296);" "assume base2flt_~m#1 % 4294967296 < 16777216;" [2024-11-28 04:48:15,683 INFO L749 eck$LassoCheckResult]: Loop: "assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * (base2flt_~m#1 % 4294967296);" "assume base2flt_~m#1 % 4294967296 < 16777216;" [2024-11-28 04:48:15,684 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:48:15,684 INFO L85 PathProgramCache]: Analyzing trace with hash -1202403814, now seen corresponding path program 1 times [2024-11-28 04:48:15,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 04:48:15,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526393167] [2024-11-28 04:48:15,684 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:48:15,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:48:15,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:48:15,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-28 04:48:15,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526393167] [2024-11-28 04:48:15,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526393167] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:48:15,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1735060935] [2024-11-28 04:48:15,802 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:48:15,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:48:15,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:48:15,806 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:48:15,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-28 04:48:15,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:48:15,860 INFO L256 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:48:15,861 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:48:15,868 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:48:15,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1735060935] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:48:15,884 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:48:15,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 4 [2024-11-28 04:48:15,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768959497] [2024-11-28 04:48:15,885 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:48:15,885 INFO L752 eck$LassoCheckResult]: stem already infeasible [2024-11-28 04:48:15,886 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:48:15,886 INFO L85 PathProgramCache]: Analyzing trace with hash 7076, now seen corresponding path program 1 times [2024-11-28 04:48:15,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 04:48:15,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501325985] [2024-11-28 04:48:15,886 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:48:15,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:48:15,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:48:15,895 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:48:15,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:48:15,904 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 04:48:15,954 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 04:48:15,954 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 04:48:15,954 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 04:48:15,954 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 04:48:15,954 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-28 04:48:15,954 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:48:15,954 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 04:48:15,955 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 04:48:15,955 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_5a.c.cil.c_Iteration3_Loop [2024-11-28 04:48:15,956 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 04:48:15,956 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 04:48:15,957 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:48:15,973 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:48:16,118 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 04:48:16,119 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-28 04:48:16,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:48:16,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:48:16,126 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:48:16,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-11-28 04:48:16,129 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 04:48:16,129 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 04:48:16,154 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 04:48:16,154 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_base2flt_~m#1=0} Honda state: {ULTIMATE.start_base2flt_~m#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 04:48:16,158 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2024-11-28 04:48:16,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:48:16,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:48:16,160 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:48:16,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-11-28 04:48:16,165 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 04:48:16,165 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 04:48:16,188 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2024-11-28 04:48:16,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:48:16,189 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:48:16,191 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:48:16,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-11-28 04:48:16,195 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-28 04:48:16,195 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 04:48:16,226 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-28 04:48:16,231 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2024-11-28 04:48:16,231 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 04:48:16,231 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 04:48:16,231 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 04:48:16,231 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 04:48:16,231 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-28 04:48:16,231 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:48:16,231 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 04:48:16,231 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 04:48:16,232 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_5a.c.cil.c_Iteration3_Loop [2024-11-28 04:48:16,232 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 04:48:16,232 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 04:48:16,232 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:48:16,242 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:48:16,368 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 04:48:16,368 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-28 04:48:16,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:48:16,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:48:16,371 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:48:16,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-11-28 04:48:16,375 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 [2024-11-28 04:48:16,389 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 04:48:16,389 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 04:48:16,389 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 04:48:16,389 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 04:48:16,389 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 04:48:16,392 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 04:48:16,393 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 04:48:16,398 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 04:48:16,407 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2024-11-28 04:48:16,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:48:16,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:48:16,409 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:48:16,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2024-11-28 04:48:16,414 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 [2024-11-28 04:48:16,428 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 04:48:16,428 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 04:48:16,428 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 04:48:16,428 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 04:48:16,428 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 04:48:16,430 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 04:48:16,430 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 04:48:16,434 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-28 04:48:16,437 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-28 04:48:16,437 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-28 04:48:16,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:48:16,437 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:48:16,442 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:48:16,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-11-28 04:48:16,446 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-28 04:48:16,446 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-28 04:48:16,446 INFO L474 LassoAnalysis]: Proved termination. [2024-11-28 04:48:16,446 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = 2*ULTIMATE.start_base2flt_~e#1 + 255 Supporting invariants [] [2024-11-28 04:48:16,455 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2024-11-28 04:48:16,456 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-28 04:48:16,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:48:16,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:48:16,496 INFO L256 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 04:48:16,496 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:48:16,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:48:16,517 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:48:16,517 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:48:16,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:48:16,537 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 [2024-11-28 04:48:16,537 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 43 states and 62 transitions. cyclomatic complexity: 24 Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2024-11-28 04:48:16,573 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 43 states and 62 transitions. cyclomatic complexity: 24. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 69 states and 96 transitions. Complement of second has 5 states. [2024-11-28 04:48:16,574 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 [2024-11-28 04:48:16,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2024-11-28 04:48:16,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 67 transitions. [2024-11-28 04:48:16,575 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 67 transitions. Stem has 10 letters. Loop has 2 letters. [2024-11-28 04:48:16,575 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 04:48:16,575 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 67 transitions. Stem has 12 letters. Loop has 2 letters. [2024-11-28 04:48:16,575 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 04:48:16,575 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 67 transitions. Stem has 10 letters. Loop has 4 letters. [2024-11-28 04:48:16,575 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 04:48:16,576 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 69 states and 96 transitions. [2024-11-28 04:48:16,577 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 10 [2024-11-28 04:48:16,577 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 69 states to 62 states and 87 transitions. [2024-11-28 04:48:16,578 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 55 [2024-11-28 04:48:16,578 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 58 [2024-11-28 04:48:16,578 INFO L73 IsDeterministic]: Start isDeterministic. Operand 62 states and 87 transitions. [2024-11-28 04:48:16,578 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-28 04:48:16,578 INFO L218 hiAutomatonCegarLoop]: Abstraction has 62 states and 87 transitions. [2024-11-28 04:48:16,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states and 87 transitions. [2024-11-28 04:48:16,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 45. [2024-11-28 04:48:16,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 45 states have (on average 1.4444444444444444) internal successors, (65), 44 states have internal predecessors, (65), 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) [2024-11-28 04:48:16,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 65 transitions. [2024-11-28 04:48:16,581 INFO L240 hiAutomatonCegarLoop]: Abstraction has 45 states and 65 transitions. [2024-11-28 04:48:16,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-28 04:48:16,582 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:48:16,582 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:48:16,582 INFO L87 Difference]: Start difference. First operand 45 states and 65 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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) [2024-11-28 04:48:16,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:48:16,712 INFO L93 Difference]: Finished difference Result 58 states and 79 transitions. [2024-11-28 04:48:16,713 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 58 states and 79 transitions. [2024-11-28 04:48:16,714 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2024-11-28 04:48:16,714 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 58 states to 58 states and 79 transitions. [2024-11-28 04:48:16,714 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 52 [2024-11-28 04:48:16,715 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 52 [2024-11-28 04:48:16,715 INFO L73 IsDeterministic]: Start isDeterministic. Operand 58 states and 79 transitions. [2024-11-28 04:48:16,715 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-28 04:48:16,715 INFO L218 hiAutomatonCegarLoop]: Abstraction has 58 states and 79 transitions. [2024-11-28 04:48:16,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states and 79 transitions. [2024-11-28 04:48:16,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 47. [2024-11-28 04:48:16,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 47 states have (on average 1.4042553191489362) internal successors, (66), 46 states have internal predecessors, (66), 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) [2024-11-28 04:48:16,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 66 transitions. [2024-11-28 04:48:16,718 INFO L240 hiAutomatonCegarLoop]: Abstraction has 47 states and 66 transitions. [2024-11-28 04:48:16,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:48:16,720 INFO L425 stractBuchiCegarLoop]: Abstraction has 47 states and 66 transitions. [2024-11-28 04:48:16,720 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-28 04:48:16,720 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 47 states and 66 transitions. [2024-11-28 04:48:16,721 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2024-11-28 04:48:16,721 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 04:48:16,721 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 04:48:16,722 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:48:16,722 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-28 04:48:16,722 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(22, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~ret19#1, main_#t~ret20#1, main_#t~ret21#1, main_#t~ret22#1, main_#t~ret23#1, main_~a~0#1, main_~ma~2#1, main_~ea~2#1, main_~b~0#1, main_~mb~2#1, main_~eb~2#1, main_~r_mul~0#1, main_~zero~0#1, main_~one~0#1, main_~sb~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~tmp___1~0#1, main_~__retres16~0#1;havoc main_~a~0#1;havoc main_#t~nondet15#1;main_~ma~2#1 := main_#t~nondet15#1;havoc main_#t~nondet15#1;havoc main_#t~nondet16#1;main_~ea~2#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1;havoc main_~b~0#1;havoc main_#t~nondet17#1;main_~mb~2#1 := main_#t~nondet17#1;havoc main_#t~nondet17#1;havoc main_#t~nondet18#1;main_~eb~2#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;havoc main_~r_mul~0#1;havoc main_~zero~0#1;havoc main_~one~0#1;havoc main_~sb~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~tmp___1~0#1;havoc main_~__retres16~0#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 0, 0;havoc base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1;" "assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0;" "base2flt_#res#1 := base2flt_~__retres4~0#1;" "main_#t~ret19#1 := base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;havoc base2flt_#in~m#1, base2flt_#in~e#1;assume { :end_inline_base2flt } true;main_~zero~0#1 := main_#t~ret19#1;havoc main_#t~ret19#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 1, 0;havoc base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1;" "assume !(0 == base2flt_~m#1 % 4294967296);" "assume base2flt_~m#1 % 4294967296 < 16777216;" "assume base2flt_~e#1 <= -128;base2flt_~__retres4~0#1 := 0;" "base2flt_#res#1 := base2flt_~__retres4~0#1;" "main_#t~ret20#1 := base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;havoc base2flt_#in~m#1, base2flt_#in~e#1;assume { :end_inline_base2flt } true;main_~one~0#1 := main_#t~ret20#1;havoc main_#t~ret20#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := main_~ma~2#1, main_~ea~2#1;havoc base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1;" "assume !(0 == base2flt_~m#1 % 4294967296);" "assume !(base2flt_~m#1 % 4294967296 < 16777216);" "assume base2flt_~m#1 % 4294967296 >= 33554432;" [2024-11-28 04:48:16,722 INFO L749 eck$LassoCheckResult]: Loop: "assume !(base2flt_~e#1 >= 127);base2flt_~e#1 := 1 + base2flt_~e#1;base2flt_~m#1 := base2flt_~m#1 % 4294967296 / 2;" "assume base2flt_~m#1 % 4294967296 >= 33554432;" [2024-11-28 04:48:16,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:48:16,722 INFO L85 PathProgramCache]: Analyzing trace with hash -417339658, now seen corresponding path program 1 times [2024-11-28 04:48:16,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 04:48:16,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158640584] [2024-11-28 04:48:16,723 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:48:16,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:48:16,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:48:16,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-28 04:48:16,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158640584] [2024-11-28 04:48:16,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158640584] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:48:16,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1730534421] [2024-11-28 04:48:16,788 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:48:16,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:48:16,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:48:16,793 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:48:16,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-28 04:48:16,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:48:16,847 INFO L256 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 04:48:16,848 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:48:16,867 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:48:16,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1730534421] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:48:16,887 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:48:16,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2024-11-28 04:48:16,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504280840] [2024-11-28 04:48:16,887 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:48:16,888 INFO L752 eck$LassoCheckResult]: stem already infeasible [2024-11-28 04:48:16,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:48:16,888 INFO L85 PathProgramCache]: Analyzing trace with hash 8025, now seen corresponding path program 1 times [2024-11-28 04:48:16,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 04:48:16,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525380030] [2024-11-28 04:48:16,889 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:48:16,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:48:16,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:48:16,898 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:48:16,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:48:16,905 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 04:48:16,955 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 04:48:16,955 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 04:48:16,955 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 04:48:16,955 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 04:48:16,955 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-28 04:48:16,955 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:48:16,955 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 04:48:16,955 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 04:48:16,955 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_5a.c.cil.c_Iteration4_Loop [2024-11-28 04:48:16,955 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 04:48:16,955 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 04:48:16,957 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:48:16,966 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:48:17,113 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 04:48:17,114 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-28 04:48:17,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:48:17,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:48:17,119 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:48:17,122 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-11-28 04:48:17,122 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 04:48:17,122 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 04:48:17,149 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2024-11-28 04:48:17,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:48:17,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:48:17,153 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:48:17,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2024-11-28 04:48:17,155 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-28 04:48:17,155 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 04:48:17,183 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-28 04:48:17,187 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2024-11-28 04:48:17,188 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 04:48:17,188 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 04:48:17,188 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 04:48:17,188 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 04:48:17,188 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-28 04:48:17,188 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:48:17,188 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 04:48:17,188 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 04:48:17,188 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_5a.c.cil.c_Iteration4_Loop [2024-11-28 04:48:17,188 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 04:48:17,188 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 04:48:17,191 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:48:17,200 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:48:17,349 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 04:48:17,349 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-28 04:48:17,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:48:17,350 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:48:17,351 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:48:17,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2024-11-28 04:48:17,354 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 [2024-11-28 04:48:17,365 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 04:48:17,365 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 04:48:17,365 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 04:48:17,365 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 04:48:17,365 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 04:48:17,369 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 04:48:17,369 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 04:48:17,374 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 04:48:17,381 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2024-11-28 04:48:17,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:48:17,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:48:17,383 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:48:17,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2024-11-28 04:48:17,386 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 [2024-11-28 04:48:17,397 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 04:48:17,397 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 04:48:17,397 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 04:48:17,397 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 04:48:17,397 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 04:48:17,398 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 04:48:17,398 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 04:48:17,401 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-28 04:48:17,404 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-28 04:48:17,405 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-28 04:48:17,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:48:17,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:48:17,408 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:48:17,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2024-11-28 04:48:17,410 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-28 04:48:17,410 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-28 04:48:17,410 INFO L474 LassoAnalysis]: Proved termination. [2024-11-28 04:48:17,410 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = -2*ULTIMATE.start_base2flt_~e#1 + 253 Supporting invariants [] [2024-11-28 04:48:17,417 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2024-11-28 04:48:17,418 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-28 04:48:17,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:48:17,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:48:17,458 INFO L256 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 04:48:17,459 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:48:17,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:48:17,496 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:48:17,497 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:48:17,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:48:17,521 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 [2024-11-28 04:48:17,522 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 47 states and 66 transitions. cyclomatic complexity: 24 Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:48:17,561 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 47 states and 66 transitions. cyclomatic complexity: 24. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 72 states and 98 transitions. Complement of second has 5 states. [2024-11-28 04:48:17,562 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 [2024-11-28 04:48:17,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:48:17,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 66 transitions. [2024-11-28 04:48:17,563 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 66 transitions. Stem has 13 letters. Loop has 2 letters. [2024-11-28 04:48:17,563 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 04:48:17,563 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 66 transitions. Stem has 15 letters. Loop has 2 letters. [2024-11-28 04:48:17,563 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 04:48:17,563 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 66 transitions. Stem has 13 letters. Loop has 4 letters. [2024-11-28 04:48:17,563 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 04:48:17,564 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 72 states and 98 transitions. [2024-11-28 04:48:17,565 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2024-11-28 04:48:17,565 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 72 states to 65 states and 89 transitions. [2024-11-28 04:48:17,565 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 56 [2024-11-28 04:48:17,565 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 59 [2024-11-28 04:48:17,566 INFO L73 IsDeterministic]: Start isDeterministic. Operand 65 states and 89 transitions. [2024-11-28 04:48:17,566 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-28 04:48:17,566 INFO L218 hiAutomatonCegarLoop]: Abstraction has 65 states and 89 transitions. [2024-11-28 04:48:17,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states and 89 transitions. [2024-11-28 04:48:17,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 49. [2024-11-28 04:48:17,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 49 states have (on average 1.4081632653061225) internal successors, (69), 48 states have internal predecessors, (69), 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) [2024-11-28 04:48:17,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 69 transitions. [2024-11-28 04:48:17,572 INFO L240 hiAutomatonCegarLoop]: Abstraction has 49 states and 69 transitions. [2024-11-28 04:48:17,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-28 04:48:17,573 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:48:17,573 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:48:17,573 INFO L87 Difference]: Start difference. First operand 49 states and 69 transitions. Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:48:17,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:48:17,630 INFO L93 Difference]: Finished difference Result 59 states and 82 transitions. [2024-11-28 04:48:17,630 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 59 states and 82 transitions. [2024-11-28 04:48:17,631 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2024-11-28 04:48:17,632 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 59 states to 58 states and 81 transitions. [2024-11-28 04:48:17,632 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 50 [2024-11-28 04:48:17,632 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 50 [2024-11-28 04:48:17,633 INFO L73 IsDeterministic]: Start isDeterministic. Operand 58 states and 81 transitions. [2024-11-28 04:48:17,633 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-28 04:48:17,633 INFO L218 hiAutomatonCegarLoop]: Abstraction has 58 states and 81 transitions. [2024-11-28 04:48:17,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states and 81 transitions. [2024-11-28 04:48:17,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 50. [2024-11-28 04:48:17,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 50 states have (on average 1.4) internal successors, (70), 49 states have internal predecessors, (70), 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) [2024-11-28 04:48:17,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 70 transitions. [2024-11-28 04:48:17,639 INFO L240 hiAutomatonCegarLoop]: Abstraction has 50 states and 70 transitions. [2024-11-28 04:48:17,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:48:17,641 INFO L425 stractBuchiCegarLoop]: Abstraction has 50 states and 70 transitions. [2024-11-28 04:48:17,641 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-11-28 04:48:17,641 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 50 states and 70 transitions. [2024-11-28 04:48:17,641 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2024-11-28 04:48:17,641 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 04:48:17,641 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 04:48:17,642 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:48:17,642 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-28 04:48:17,642 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(22, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~ret19#1, main_#t~ret20#1, main_#t~ret21#1, main_#t~ret22#1, main_#t~ret23#1, main_~a~0#1, main_~ma~2#1, main_~ea~2#1, main_~b~0#1, main_~mb~2#1, main_~eb~2#1, main_~r_mul~0#1, main_~zero~0#1, main_~one~0#1, main_~sb~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~tmp___1~0#1, main_~__retres16~0#1;havoc main_~a~0#1;havoc main_#t~nondet15#1;main_~ma~2#1 := main_#t~nondet15#1;havoc main_#t~nondet15#1;havoc main_#t~nondet16#1;main_~ea~2#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1;havoc main_~b~0#1;havoc main_#t~nondet17#1;main_~mb~2#1 := main_#t~nondet17#1;havoc main_#t~nondet17#1;havoc main_#t~nondet18#1;main_~eb~2#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;havoc main_~r_mul~0#1;havoc main_~zero~0#1;havoc main_~one~0#1;havoc main_~sb~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~tmp___1~0#1;havoc main_~__retres16~0#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 0, 0;havoc base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1;" "assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0;" "base2flt_#res#1 := base2flt_~__retres4~0#1;" "main_#t~ret19#1 := base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;havoc base2flt_#in~m#1, base2flt_#in~e#1;assume { :end_inline_base2flt } true;main_~zero~0#1 := main_#t~ret19#1;havoc main_#t~ret19#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 1, 0;havoc base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1;" "assume !(0 == base2flt_~m#1 % 4294967296);" "assume base2flt_~m#1 % 4294967296 < 16777216;" "assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * (base2flt_~m#1 % 4294967296);" "assume base2flt_~m#1 % 4294967296 < 16777216;" "assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * (base2flt_~m#1 % 4294967296);" "assume base2flt_~m#1 % 4294967296 < 16777216;" "assume base2flt_~e#1 <= -128;base2flt_~__retres4~0#1 := 0;" "base2flt_#res#1 := base2flt_~__retres4~0#1;" "main_#t~ret20#1 := base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;havoc base2flt_#in~m#1, base2flt_#in~e#1;assume { :end_inline_base2flt } true;main_~one~0#1 := main_#t~ret20#1;havoc main_#t~ret20#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := main_~ma~2#1, main_~ea~2#1;havoc base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1;" "assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0;" "base2flt_#res#1 := base2flt_~__retres4~0#1;" "main_#t~ret21#1 := base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;havoc base2flt_#in~m#1, base2flt_#in~e#1;assume { :end_inline_base2flt } true;main_~a~0#1 := main_#t~ret21#1;havoc main_#t~ret21#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := main_~mb~2#1, main_~eb~2#1;havoc base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1;" "assume !(0 == base2flt_~m#1 % 4294967296);" "assume base2flt_~m#1 % 4294967296 < 16777216;" [2024-11-28 04:48:17,642 INFO L749 eck$LassoCheckResult]: Loop: "assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * (base2flt_~m#1 % 4294967296);" "assume base2flt_~m#1 % 4294967296 < 16777216;" [2024-11-28 04:48:17,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:48:17,643 INFO L85 PathProgramCache]: Analyzing trace with hash -1782459436, now seen corresponding path program 1 times [2024-11-28 04:48:17,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 04:48:17,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981011781] [2024-11-28 04:48:17,643 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:48:17,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:48:17,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:48:17,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-28 04:48:17,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981011781] [2024-11-28 04:48:17,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981011781] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:48:17,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1308811908] [2024-11-28 04:48:17,752 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:48:17,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:48:17,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:48:17,754 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:48:17,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-28 04:48:17,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:48:17,823 INFO L256 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:48:17,825 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:48:17,864 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:48:17,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1308811908] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:48:17,913 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:48:17,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-28 04:48:17,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308223024] [2024-11-28 04:48:17,914 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:48:17,914 INFO L752 eck$LassoCheckResult]: stem already infeasible [2024-11-28 04:48:17,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:48:17,914 INFO L85 PathProgramCache]: Analyzing trace with hash 9764, now seen corresponding path program 1 times [2024-11-28 04:48:17,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 04:48:17,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174029162] [2024-11-28 04:48:17,915 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:48:17,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:48:17,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:48:17,923 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:48:17,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:48:17,928 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 04:48:17,966 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 04:48:17,966 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 04:48:17,967 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 04:48:17,967 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 04:48:17,967 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-28 04:48:17,967 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:48:17,967 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 04:48:17,967 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 04:48:17,967 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_5a.c.cil.c_Iteration5_Loop [2024-11-28 04:48:17,967 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 04:48:17,967 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 04:48:17,968 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:48:17,975 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:48:18,108 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 04:48:18,108 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-28 04:48:18,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:48:18,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:48:18,112 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:48:18,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2024-11-28 04:48:18,115 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 04:48:18,115 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 04:48:18,141 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2024-11-28 04:48:18,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:48:18,141 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:48:18,143 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:48:18,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2024-11-28 04:48:18,150 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-28 04:48:18,150 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 04:48:18,182 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-28 04:48:18,185 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2024-11-28 04:48:18,186 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 04:48:18,186 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 04:48:18,186 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 04:48:18,186 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 04:48:18,187 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-28 04:48:18,187 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:48:18,187 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 04:48:18,187 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 04:48:18,187 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_5a.c.cil.c_Iteration5_Loop [2024-11-28 04:48:18,187 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 04:48:18,187 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 04:48:18,188 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:48:18,195 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:48:18,315 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 04:48:18,315 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-28 04:48:18,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:48:18,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:48:18,318 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:48:18,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2024-11-28 04:48:18,323 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 [2024-11-28 04:48:18,336 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 04:48:18,337 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 04:48:18,337 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 04:48:18,337 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 04:48:18,337 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 04:48:18,338 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 04:48:18,339 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 04:48:18,343 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-28 04:48:18,345 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-28 04:48:18,345 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-28 04:48:18,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:48:18,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:48:18,350 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:48:18,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2024-11-28 04:48:18,352 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-28 04:48:18,353 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-28 04:48:18,353 INFO L474 LassoAnalysis]: Proved termination. [2024-11-28 04:48:18,353 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = 2*ULTIMATE.start_base2flt_~e#1 + 255 Supporting invariants [] [2024-11-28 04:48:18,361 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2024-11-28 04:48:18,362 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-28 04:48:18,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:48:18,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:48:18,407 INFO L256 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 04:48:18,408 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:48:18,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:48:18,441 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:48:18,441 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:48:18,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:48:18,462 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 [2024-11-28 04:48:18,462 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 50 states and 70 transitions. cyclomatic complexity: 25 Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:48:18,471 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 50 states and 70 transitions. cyclomatic complexity: 25. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 52 states and 72 transitions. Complement of second has 4 states. [2024-11-28 04:48:18,471 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 [2024-11-28 04:48:18,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:48:18,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 58 transitions. [2024-11-28 04:48:18,472 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 58 transitions. Stem has 19 letters. Loop has 2 letters. [2024-11-28 04:48:18,472 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 04:48:18,473 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 58 transitions. Stem has 21 letters. Loop has 2 letters. [2024-11-28 04:48:18,473 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 04:48:18,473 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 58 transitions. Stem has 19 letters. Loop has 4 letters. [2024-11-28 04:48:18,473 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 04:48:18,473 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 52 states and 72 transitions. [2024-11-28 04:48:18,474 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-28 04:48:18,474 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 52 states to 48 states and 67 transitions. [2024-11-28 04:48:18,475 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 41 [2024-11-28 04:48:18,475 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 41 [2024-11-28 04:48:18,475 INFO L73 IsDeterministic]: Start isDeterministic. Operand 48 states and 67 transitions. [2024-11-28 04:48:18,475 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-28 04:48:18,475 INFO L218 hiAutomatonCegarLoop]: Abstraction has 48 states and 67 transitions. [2024-11-28 04:48:18,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states and 67 transitions. [2024-11-28 04:48:18,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2024-11-28 04:48:18,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 48 states have (on average 1.3958333333333333) internal successors, (67), 47 states have internal predecessors, (67), 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) [2024-11-28 04:48:18,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 67 transitions. [2024-11-28 04:48:18,478 INFO L240 hiAutomatonCegarLoop]: Abstraction has 48 states and 67 transitions. [2024-11-28 04:48:18,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-28 04:48:18,478 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 04:48:18,478 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=47, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:48:18,478 INFO L87 Difference]: Start difference. First operand 48 states and 67 transitions. Second operand has 10 states, 10 states have (on average 3.3) internal successors, (33), 10 states have internal predecessors, (33), 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) [2024-11-28 04:48:18,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:48:18,635 INFO L93 Difference]: Finished difference Result 96 states and 133 transitions. [2024-11-28 04:48:18,635 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 96 states and 133 transitions. [2024-11-28 04:48:18,636 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-28 04:48:18,637 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 96 states to 92 states and 129 transitions. [2024-11-28 04:48:18,637 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 76 [2024-11-28 04:48:18,638 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 76 [2024-11-28 04:48:18,638 INFO L73 IsDeterministic]: Start isDeterministic. Operand 92 states and 129 transitions. [2024-11-28 04:48:18,638 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-28 04:48:18,638 INFO L218 hiAutomatonCegarLoop]: Abstraction has 92 states and 129 transitions. [2024-11-28 04:48:18,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states and 129 transitions. [2024-11-28 04:48:18,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 62. [2024-11-28 04:48:18,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 62 states have (on average 1.403225806451613) internal successors, (87), 61 states have internal predecessors, (87), 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) [2024-11-28 04:48:18,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 87 transitions. [2024-11-28 04:48:18,647 INFO L240 hiAutomatonCegarLoop]: Abstraction has 62 states and 87 transitions. [2024-11-28 04:48:18,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:48:18,648 INFO L425 stractBuchiCegarLoop]: Abstraction has 62 states and 87 transitions. [2024-11-28 04:48:18,650 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-11-28 04:48:18,650 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 62 states and 87 transitions. [2024-11-28 04:48:18,651 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-28 04:48:18,651 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 04:48:18,651 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 04:48:18,651 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:48:18,652 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-28 04:48:18,652 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(22, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~ret19#1, main_#t~ret20#1, main_#t~ret21#1, main_#t~ret22#1, main_#t~ret23#1, main_~a~0#1, main_~ma~2#1, main_~ea~2#1, main_~b~0#1, main_~mb~2#1, main_~eb~2#1, main_~r_mul~0#1, main_~zero~0#1, main_~one~0#1, main_~sb~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~tmp___1~0#1, main_~__retres16~0#1;havoc main_~a~0#1;havoc main_#t~nondet15#1;main_~ma~2#1 := main_#t~nondet15#1;havoc main_#t~nondet15#1;havoc main_#t~nondet16#1;main_~ea~2#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1;havoc main_~b~0#1;havoc main_#t~nondet17#1;main_~mb~2#1 := main_#t~nondet17#1;havoc main_#t~nondet17#1;havoc main_#t~nondet18#1;main_~eb~2#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;havoc main_~r_mul~0#1;havoc main_~zero~0#1;havoc main_~one~0#1;havoc main_~sb~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~tmp___1~0#1;havoc main_~__retres16~0#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 0, 0;havoc base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1;" "assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0;" "base2flt_#res#1 := base2flt_~__retres4~0#1;" "main_#t~ret19#1 := base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;havoc base2flt_#in~m#1, base2flt_#in~e#1;assume { :end_inline_base2flt } true;main_~zero~0#1 := main_#t~ret19#1;havoc main_#t~ret19#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 1, 0;havoc base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1;" "assume !(0 == base2flt_~m#1 % 4294967296);" "assume base2flt_~m#1 % 4294967296 < 16777216;" "assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * (base2flt_~m#1 % 4294967296);" "assume !(base2flt_~m#1 % 4294967296 < 16777216);" "assume !(0 == base2flt_~m#1 % 4294967296);" "assume 4278190079 == base2flt_~m#1 % 4294967296;base2flt_#t~bitwise4#1 := base2flt_~m#1;" "base2flt_~m#1 := base2flt_#t~bitwise4#1;havoc base2flt_#t~bitwise4#1;" "assume 0 == base2flt_~m#1 % 4294967296 || base2flt_~m#1 % 4294967296 == 16777216 * ((128 + base2flt_~e#1) % 4294967296) % 4294967296;base2flt_#t~bitwise5#1 := 16777216 * ((128 + base2flt_~e#1) % 4294967296);" "base2flt_~res~0#1 := base2flt_#t~bitwise5#1;havoc base2flt_#t~bitwise5#1;base2flt_~__retres4~0#1 := base2flt_~res~0#1;" "base2flt_#res#1 := base2flt_~__retres4~0#1;" "main_#t~ret20#1 := base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;havoc base2flt_#in~m#1, base2flt_#in~e#1;assume { :end_inline_base2flt } true;main_~one~0#1 := main_#t~ret20#1;havoc main_#t~ret20#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := main_~ma~2#1, main_~ea~2#1;havoc base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1;" "assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0;" "base2flt_#res#1 := base2flt_~__retres4~0#1;" "main_#t~ret21#1 := base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;havoc base2flt_#in~m#1, base2flt_#in~e#1;assume { :end_inline_base2flt } true;main_~a~0#1 := main_#t~ret21#1;havoc main_#t~ret21#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := main_~mb~2#1, main_~eb~2#1;havoc base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1;" "assume !(0 == base2flt_~m#1 % 4294967296);" "assume !(base2flt_~m#1 % 4294967296 < 16777216);" [2024-11-28 04:48:18,652 INFO L749 eck$LassoCheckResult]: Loop: "assume base2flt_~m#1 % 4294967296 >= 33554432;" "assume !(base2flt_~e#1 >= 127);base2flt_~e#1 := 1 + base2flt_~e#1;base2flt_~m#1 := base2flt_~m#1 % 4294967296 / 2;" [2024-11-28 04:48:18,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:48:18,653 INFO L85 PathProgramCache]: Analyzing trace with hash -367429708, now seen corresponding path program 1 times [2024-11-28 04:48:18,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 04:48:18,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934604273] [2024-11-28 04:48:18,653 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:48:18,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:48:18,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:48:18,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-28 04:48:18,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934604273] [2024-11-28 04:48:18,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934604273] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:48:18,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [204709900] [2024-11-28 04:48:18,803 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:48:18,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:48:18,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:48:18,805 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:48:18,824 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-28 04:48:18,845 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2024-11-28 04:48:18,866 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2024-11-28 04:48:18,881 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2024-11-28 04:48:18,894 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2024-11-28 04:48:18,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:48:18,907 INFO L256 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:48:18,908 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:48:18,967 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:48:18,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [204709900] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:48:18,989 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:48:18,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 6 [2024-11-28 04:48:18,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738936591] [2024-11-28 04:48:18,989 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:48:18,989 INFO L752 eck$LassoCheckResult]: stem already infeasible [2024-11-28 04:48:18,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:48:18,990 INFO L85 PathProgramCache]: Analyzing trace with hash 10473, now seen corresponding path program 1 times [2024-11-28 04:48:18,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 04:48:18,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154316442] [2024-11-28 04:48:18,990 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:48:18,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:48:18,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:48:18,994 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:48:18,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:48:18,998 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 04:48:19,029 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 04:48:19,029 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 04:48:19,029 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 04:48:19,029 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 04:48:19,029 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-28 04:48:19,029 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:48:19,029 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 04:48:19,029 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 04:48:19,029 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_5a.c.cil.c_Iteration6_Loop [2024-11-28 04:48:19,030 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 04:48:19,030 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 04:48:19,030 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:48:19,039 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:48:19,137 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 04:48:19,138 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-28 04:48:19,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:48:19,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:48:19,140 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:48:19,143 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2024-11-28 04:48:19,144 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 04:48:19,144 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 04:48:19,170 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2024-11-28 04:48:19,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:48:19,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:48:19,171 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:48:19,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2024-11-28 04:48:19,174 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-28 04:48:19,174 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 04:48:19,199 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-28 04:48:19,203 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2024-11-28 04:48:19,203 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 04:48:19,203 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 04:48:19,203 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 04:48:19,203 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 04:48:19,203 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-28 04:48:19,203 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:48:19,203 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 04:48:19,203 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 04:48:19,203 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_5a.c.cil.c_Iteration6_Loop [2024-11-28 04:48:19,204 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 04:48:19,204 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 04:48:19,204 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:48:19,216 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:48:19,311 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 04:48:19,311 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-28 04:48:19,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:48:19,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:48:19,313 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:48:19,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2024-11-28 04:48:19,316 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 [2024-11-28 04:48:19,326 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 04:48:19,327 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 04:48:19,327 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 04:48:19,327 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 04:48:19,327 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 04:48:19,328 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 04:48:19,328 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 04:48:19,332 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 04:48:19,337 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2024-11-28 04:48:19,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:48:19,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:48:19,339 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:48:19,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2024-11-28 04:48:19,342 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 [2024-11-28 04:48:19,352 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 04:48:19,353 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 04:48:19,353 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 04:48:19,353 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 04:48:19,353 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 04:48:19,354 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 04:48:19,354 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 04:48:19,357 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-28 04:48:19,362 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-28 04:48:19,362 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-28 04:48:19,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:48:19,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:48:19,364 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:48:19,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2024-11-28 04:48:19,368 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-28 04:48:19,368 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-28 04:48:19,368 INFO L474 LassoAnalysis]: Proved termination. [2024-11-28 04:48:19,368 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = -2*ULTIMATE.start_base2flt_~e#1 + 253 Supporting invariants [] [2024-11-28 04:48:19,377 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2024-11-28 04:48:19,378 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-28 04:48:19,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:48:19,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:48:19,427 INFO L256 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 04:48:19,428 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:48:19,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:48:19,462 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:48:19,463 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:48:19,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:48:19,466 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2024-11-28 04:48:19,466 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 62 states and 87 transitions. cyclomatic complexity: 29 Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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) [2024-11-28 04:48:19,474 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 62 states and 87 transitions. cyclomatic complexity: 29. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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 64 states and 90 transitions. Complement of second has 4 states. [2024-11-28 04:48:19,474 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 [2024-11-28 04:48:19,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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) [2024-11-28 04:48:19,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 54 transitions. [2024-11-28 04:48:19,475 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 54 transitions. Stem has 21 letters. Loop has 2 letters. [2024-11-28 04:48:19,475 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 04:48:19,475 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 54 transitions. Stem has 23 letters. Loop has 2 letters. [2024-11-28 04:48:19,475 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 04:48:19,477 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 54 transitions. Stem has 21 letters. Loop has 4 letters. [2024-11-28 04:48:19,478 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 04:48:19,478 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 64 states and 90 transitions. [2024-11-28 04:48:19,478 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-28 04:48:19,478 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 64 states to 0 states and 0 transitions. [2024-11-28 04:48:19,479 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-28 04:48:19,479 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-28 04:48:19,479 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-28 04:48:19,479 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-28 04:48:19,479 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 04:48:19,479 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 04:48:19,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-28 04:48:19,479 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:48:19,479 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:48:19,479 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 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) [2024-11-28 04:48:19,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:48:19,479 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2024-11-28 04:48:19,479 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2024-11-28 04:48:19,479 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-28 04:48:19,480 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2024-11-28 04:48:19,480 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-28 04:48:19,480 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-28 04:48:19,480 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-28 04:48:19,481 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-28 04:48:19,481 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 04:48:19,481 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 04:48:19,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 04:48:19,483 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 04:48:19,483 INFO L332 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2024-11-28 04:48:19,483 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-11-28 04:48:19,484 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-28 04:48:19,484 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-11-28 04:48:19,495 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 04:48:19 BoogieIcfgContainer [2024-11-28 04:48:19,495 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-28 04:48:19,495 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 04:48:19,496 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 04:48:19,496 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 04:48:19,496 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:48:13" (3/4) ... [2024-11-28 04:48:19,499 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-28 04:48:19,499 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 04:48:19,500 INFO L158 Benchmark]: Toolchain (without parser) took 7462.23ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 93.8MB in the beginning and 277.0MB in the end (delta: -183.2MB). Peak memory consumption was 53.8MB. Max. memory is 16.1GB. [2024-11-28 04:48:19,501 INFO L158 Benchmark]: CDTParser took 1.04ms. Allocated memory is still 167.8MB. Free memory is still 104.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:48:19,501 INFO L158 Benchmark]: CACSL2BoogieTranslator took 298.69ms. Allocated memory is still 117.4MB. Free memory was 93.8MB in the beginning and 80.7MB in the end (delta: 13.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 04:48:19,501 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.00ms. Allocated memory is still 117.4MB. Free memory was 80.7MB in the beginning and 78.1MB in the end (delta: 2.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 04:48:19,501 INFO L158 Benchmark]: Boogie Preprocessor took 82.77ms. Allocated memory is still 117.4MB. Free memory was 78.1MB in the beginning and 76.0MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:48:19,502 INFO L158 Benchmark]: RCFGBuilder took 724.11ms. Allocated memory is still 117.4MB. Free memory was 75.6MB in the beginning and 47.2MB in the end (delta: 28.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-28 04:48:19,502 INFO L158 Benchmark]: BuchiAutomizer took 6297.42ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 47.2MB in the beginning and 277.1MB in the end (delta: -229.8MB). Peak memory consumption was 3.4MB. Max. memory is 16.1GB. [2024-11-28 04:48:19,502 INFO L158 Benchmark]: Witness Printer took 4.13ms. Allocated memory is still 352.3MB. Free memory was 277.1MB in the beginning and 277.0MB in the end (delta: 72.0kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 04:48:19,504 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.04ms. Allocated memory is still 167.8MB. Free memory is still 104.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 298.69ms. Allocated memory is still 117.4MB. Free memory was 93.8MB in the beginning and 80.7MB in the end (delta: 13.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.00ms. Allocated memory is still 117.4MB. Free memory was 80.7MB in the beginning and 78.1MB in the end (delta: 2.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 82.77ms. Allocated memory is still 117.4MB. Free memory was 78.1MB in the beginning and 76.0MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 724.11ms. Allocated memory is still 117.4MB. Free memory was 75.6MB in the beginning and 47.2MB in the end (delta: 28.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * BuchiAutomizer took 6297.42ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 47.2MB in the beginning and 277.1MB in the end (delta: -229.8MB). Peak memory consumption was 3.4MB. Max. memory is 16.1GB. * Witness Printer took 4.13ms. Allocated memory is still 352.3MB. Free memory was 277.1MB in the beginning and 277.0MB in the end (delta: 72.0kB). Peak memory consumption was 8.4MB. 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 11 terminating modules (5 trivial, 6 deterministic, 0 nondeterministic). One deterministic module has affine ranking function (((long long) -2 * e) + 253) and consists of 4 locations. One deterministic module has affine ranking function (((long long) 2 * e) + 255) and consists of 3 locations. One deterministic module has affine ranking function (((long long) 2 * e) + 255) and consists of 3 locations. One deterministic module has affine ranking function (((long long) -2 * e) + 253) and consists of 3 locations. One deterministic module has affine ranking function (((long long) 2 * e) + 255) and consists of 3 locations. One deterministic module has affine ranking function (((long long) -2 * e) + 253) and consists of 3 locations. 5 modules have a trivial ranking function, the largest among these consists of 10 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 6.2s and 7 iterations. TraceHistogramMax:2. Analysis of lassos took 4.6s. Construction of modules took 0.4s. Büchi inclusion checks took 0.9s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 8. Automata minimization 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 127 StatesRemovedByMinimization, 8 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [6, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 556 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 550 mSDsluCounter, 946 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 306 mSDsCounter, 37 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 426 IncrementalHoareTripleChecker+Invalid, 463 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 37 mSolverCounterUnsat, 640 mSDtfsCounter, 426 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT5 lasso0 LassoPreprocessingBenchmarks: Lassos: inital23 mio100 ax100 hnf100 lsp60 ukn100 mio100 lsp100 div660 bol100 ite100 ukn100 eq134 hnf96 smp41 dnf100 smp100 tf104 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 40ms VariablesStem: 0 VariablesLoop: 5 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 6 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-11-28 04:48:19,521 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2024-11-28 04:48:19,724 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2024-11-28 04:48:19,924 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2024-11-28 04:48:20,123 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-28 04:48:20,328 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-28 04:48:20,524 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 04:48:20,726 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa3599bc-2e9e-43e9-87e0-fe647ec4de59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE