./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-bwb/not-01.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c5e491-27af-448e-89ad-9fbc0b41ef60/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c5e491-27af-448e-89ad-9fbc0b41ef60/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c5e491-27af-448e-89ad-9fbc0b41ef60/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c5e491-27af-448e-89ad-9fbc0b41ef60/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-bwb/not-01.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c5e491-27af-448e-89ad-9fbc0b41ef60/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c5e491-27af-448e-89ad-9fbc0b41ef60/bin/uautomizer-verify-VRDe98Ueme --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 64bit --witnessprinter.graph.data.programhash 3dfbe8f5341b447680f0727714aef9849c6c8cbf32af0f88458cc80db5d02e27 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 10:45:09,971 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 10:45:10,086 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c5e491-27af-448e-89ad-9fbc0b41ef60/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-11-26 10:45:10,097 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 10:45:10,098 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 10:45:10,138 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 10:45:10,140 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 10:45:10,140 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 10:45:10,141 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 10:45:10,146 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 10:45:10,147 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 10:45:10,148 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 10:45:10,148 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 10:45:10,151 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-26 10:45:10,151 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-26 10:45:10,152 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-26 10:45:10,154 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-26 10:45:10,154 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-26 10:45:10,155 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-26 10:45:10,155 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 10:45:10,156 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-26 10:45:10,156 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 10:45:10,157 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 10:45:10,157 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-26 10:45:10,158 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-26 10:45:10,158 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-26 10:45:10,159 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 10:45:10,159 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 10:45:10,160 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-26 10:45:10,160 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 10:45:10,162 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 10:45:10,162 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 10:45:10,163 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 10:45:10,163 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 10:45:10,164 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-26 10:45:10,164 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c5e491-27af-448e-89ad-9fbc0b41ef60/bin/uautomizer-verify-VRDe98Ueme/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c5e491-27af-448e-89ad-9fbc0b41ef60/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3dfbe8f5341b447680f0727714aef9849c6c8cbf32af0f88458cc80db5d02e27 [2023-11-26 10:45:10,482 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 10:45:10,522 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 10:45:10,525 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 10:45:10,526 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 10:45:10,527 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 10:45:10,529 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c5e491-27af-448e-89ad-9fbc0b41ef60/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/termination-bwb/not-01.c [2023-11-26 10:45:13,789 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 10:45:13,981 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 10:45:13,982 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c5e491-27af-448e-89ad-9fbc0b41ef60/sv-benchmarks/c/termination-bwb/not-01.c [2023-11-26 10:45:13,994 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c5e491-27af-448e-89ad-9fbc0b41ef60/bin/uautomizer-verify-VRDe98Ueme/data/fb6713c2b/d457a7697a37441ab37faa9fad47bc2c/FLAGbb153f31a [2023-11-26 10:45:14,012 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c5e491-27af-448e-89ad-9fbc0b41ef60/bin/uautomizer-verify-VRDe98Ueme/data/fb6713c2b/d457a7697a37441ab37faa9fad47bc2c [2023-11-26 10:45:14,019 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 10:45:14,020 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 10:45:14,022 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 10:45:14,022 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 10:45:14,029 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 10:45:14,030 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:45:14" (1/1) ... [2023-11-26 10:45:14,032 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47b8db94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:14, skipping insertion in model container [2023-11-26 10:45:14,032 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:45:14" (1/1) ... [2023-11-26 10:45:14,062 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 10:45:14,226 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:45:14,231 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 10:45:14,241 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:45:14,252 INFO L206 MainTranslator]: Completed translation [2023-11-26 10:45:14,253 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:14 WrapperNode [2023-11-26 10:45:14,253 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 10:45:14,254 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 10:45:14,254 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 10:45:14,254 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 10:45:14,262 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:14" (1/1) ... [2023-11-26 10:45:14,265 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:14" (1/1) ... [2023-11-26 10:45:14,281 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 18 [2023-11-26 10:45:14,282 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 10:45:14,283 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 10:45:14,283 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 10:45:14,283 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 10:45:14,295 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:14" (1/1) ... [2023-11-26 10:45:14,295 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:14" (1/1) ... [2023-11-26 10:45:14,296 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:14" (1/1) ... [2023-11-26 10:45:14,303 INFO L175 MemorySlicer]: No memory access in input program. [2023-11-26 10:45:14,303 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:14" (1/1) ... [2023-11-26 10:45:14,304 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:14" (1/1) ... [2023-11-26 10:45:14,305 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:14" (1/1) ... [2023-11-26 10:45:14,309 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:14" (1/1) ... [2023-11-26 10:45:14,309 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:14" (1/1) ... [2023-11-26 10:45:14,310 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:14" (1/1) ... [2023-11-26 10:45:14,310 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 10:45:14,311 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 10:45:14,311 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 10:45:14,312 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 10:45:14,312 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:14" (1/1) ... [2023-11-26 10:45:14,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:45:14,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c5e491-27af-448e-89ad-9fbc0b41ef60/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:45:14,346 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c5e491-27af-448e-89ad-9fbc0b41ef60/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:45:14,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c5e491-27af-448e-89ad-9fbc0b41ef60/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-26 10:45:14,394 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 10:45:14,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 10:45:14,462 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 10:45:14,464 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 10:45:14,581 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 10:45:14,597 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 10:45:14,607 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-26 10:45:14,609 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:45:14 BoogieIcfgContainer [2023-11-26 10:45:14,609 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 10:45:14,612 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-26 10:45:14,612 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-26 10:45:14,616 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-26 10:45:14,618 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-26 10:45:14,619 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 26.11 10:45:14" (1/3) ... [2023-11-26 10:45:14,622 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2eedc50c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.11 10:45:14, skipping insertion in model container [2023-11-26 10:45:14,622 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-26 10:45:14,623 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:14" (2/3) ... [2023-11-26 10:45:14,625 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2eedc50c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.11 10:45:14, skipping insertion in model container [2023-11-26 10:45:14,625 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-26 10:45:14,626 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:45:14" (3/3) ... [2023-11-26 10:45:14,627 INFO L332 chiAutomizerObserver]: Analyzing ICFG not-01.c [2023-11-26 10:45:14,702 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-26 10:45:14,704 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-26 10:45:14,705 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-26 10:45:14,705 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-26 10:45:14,705 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-26 10:45:14,705 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-26 10:45:14,706 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-26 10:45:14,706 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-26 10:45:14,711 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 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) [2023-11-26 10:45:14,731 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-26 10:45:14,731 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 10:45:14,731 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 10:45:14,738 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-26 10:45:14,739 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-26 10:45:14,739 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-26 10:45:14,740 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 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) [2023-11-26 10:45:14,741 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-26 10:45:14,742 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 10:45:14,742 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 10:45:14,743 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-26 10:45:14,743 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-26 10:45:14,751 INFO L748 eck$LassoCheckResult]: Stem: 5#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 6#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~a~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 4#L18-2true [2023-11-26 10:45:14,752 INFO L750 eck$LassoCheckResult]: Loop: 4#L18-2true assume !!(main_~x~0#1 > 0);main_~a~0#1 := -1 - main_~a~0#1; 3#L18true assume !(main_~a~0#1 > 0);main_~x~0#1 := main_~x~0#1 + main_~a~0#1; 4#L18-2true [2023-11-26 10:45:14,758 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:14,759 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-11-26 10:45:14,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:14,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987040552] [2023-11-26 10:45:14,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:14,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:14,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:45:14,885 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:45:14,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:45:14,913 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:45:14,916 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:14,917 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 1 times [2023-11-26 10:45:14,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:14,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865877506] [2023-11-26 10:45:14,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:14,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:14,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:45:14,958 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:45:14,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:45:14,968 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:45:14,970 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:14,970 INFO L85 PathProgramCache]: Analyzing trace with hash 925800, now seen corresponding path program 1 times [2023-11-26 10:45:14,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:14,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554927441] [2023-11-26 10:45:14,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:14,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:14,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:45:14,997 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:45:15,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:45:15,006 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:45:15,093 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 10:45:15,094 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 10:45:15,094 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 10:45:15,094 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 10:45:15,094 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-26 10:45:15,094 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:45:15,095 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 10:45:15,095 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 10:45:15,095 INFO L133 ssoRankerPreferences]: Filename of dumped script: not-01.c_Iteration1_Loop [2023-11-26 10:45:15,095 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 10:45:15,095 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 10:45:15,112 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:45:15,186 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 10:45:15,186 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-26 10:45:15,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:45:15,189 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c5e491-27af-448e-89ad-9fbc0b41ef60/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:45:15,196 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c5e491-27af-448e-89ad-9fbc0b41ef60/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:45:15,205 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c5e491-27af-448e-89ad-9fbc0b41ef60/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-26 10:45:15,206 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 10:45:15,206 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 10:45:15,236 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c5e491-27af-448e-89ad-9fbc0b41ef60/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-11-26 10:45:15,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:45:15,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c5e491-27af-448e-89ad-9fbc0b41ef60/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:45:15,244 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c5e491-27af-448e-89ad-9fbc0b41ef60/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:45:15,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c5e491-27af-448e-89ad-9fbc0b41ef60/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-26 10:45:15,248 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-26 10:45:15,248 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 10:45:15,376 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-26 10:45:15,381 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c5e491-27af-448e-89ad-9fbc0b41ef60/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-11-26 10:45:15,381 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 10:45:15,381 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 10:45:15,382 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 10:45:15,382 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 10:45:15,382 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-26 10:45:15,382 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:45:15,382 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 10:45:15,382 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 10:45:15,382 INFO L133 ssoRankerPreferences]: Filename of dumped script: not-01.c_Iteration1_Loop [2023-11-26 10:45:15,382 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 10:45:15,383 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 10:45:15,385 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:45:15,449 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 10:45:15,454 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-26 10:45:15,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:45:15,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c5e491-27af-448e-89ad-9fbc0b41ef60/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:45:15,457 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c5e491-27af-448e-89ad-9fbc0b41ef60/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:45:15,465 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 [2023-11-26 10:45:15,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c5e491-27af-448e-89ad-9fbc0b41ef60/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-26 10:45:15,479 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 10:45:15,479 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 10:45:15,480 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 10:45:15,480 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 10:45:15,480 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 10:45:15,484 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 10:45:15,485 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 10:45:15,497 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 10:45:15,504 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c5e491-27af-448e-89ad-9fbc0b41ef60/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2023-11-26 10:45:15,504 INFO L490 LassoAnalysis]: Using template '2-nested'. [2023-11-26 10:45:15,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:45:15,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c5e491-27af-448e-89ad-9fbc0b41ef60/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:45:15,507 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c5e491-27af-448e-89ad-9fbc0b41ef60/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:45:15,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c5e491-27af-448e-89ad-9fbc0b41ef60/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-26 10:45:15,516 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 [2023-11-26 10:45:15,531 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 10:45:15,531 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 10:45:15,531 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 10:45:15,531 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 10:45:15,532 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2023-11-26 10:45:15,540 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2023-11-26 10:45:15,540 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 10:45:15,564 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-26 10:45:15,580 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-26 10:45:15,580 INFO L444 ModelExtractionUtils]: 2 out of 7 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-26 10:45:15,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:45:15,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c5e491-27af-448e-89ad-9fbc0b41ef60/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:45:15,617 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c5e491-27af-448e-89ad-9fbc0b41ef60/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:45:15,622 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-26 10:45:15,623 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-26 10:45:15,623 INFO L513 LassoAnalysis]: Proved termination. [2023-11-26 10:45:15,623 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = -2*ULTIMATE.start_main_~a~0#1 + 4*ULTIMATE.start_main_~x~0#1 f1 = 2*ULTIMATE.start_main_~a~0#1 + 3 Supporting invariants [] [2023-11-26 10:45:15,631 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c5e491-27af-448e-89ad-9fbc0b41ef60/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-11-26 10:45:15,639 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-26 10:45:15,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c5e491-27af-448e-89ad-9fbc0b41ef60/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-26 10:45:15,657 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IfThenElseExpression (if -2 * ~a~0 + 4 * ~x~0 > 0 then 1 else 0) could not be translated [2023-11-26 10:45:15,659 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IfThenElseExpression (if -2 * ~a~0 + 4 * ~x~0 > 0 then -2 * ~a~0 + 4 * ~x~0 else 3 + 2 * ~a~0) could not be translated [2023-11-26 10:45:15,688 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:15,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:15,698 WARN L260 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 10:45:15,699 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:45:15,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:15,722 WARN L260 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-26 10:45:15,729 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:45:16,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:45:16,048 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 [2023-11-26 10:45:16,050 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 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) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2023-11-26 10:45:16,108 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 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). Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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 13 states and 18 transitions. Complement of second has 8 states. [2023-11-26 10:45:16,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-26 10:45:16,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2023-11-26 10:45:16,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 9 transitions. [2023-11-26 10:45:16,118 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 9 transitions. Stem has 2 letters. Loop has 2 letters. [2023-11-26 10:45:16,118 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 10:45:16,118 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 9 transitions. Stem has 4 letters. Loop has 2 letters. [2023-11-26 10:45:16,119 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 10:45:16,119 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 9 transitions. Stem has 2 letters. Loop has 4 letters. [2023-11-26 10:45:16,119 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 10:45:16,120 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 18 transitions. [2023-11-26 10:45:16,122 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-26 10:45:16,125 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 0 states and 0 transitions. [2023-11-26 10:45:16,126 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-26 10:45:16,126 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-26 10:45:16,127 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-26 10:45:16,127 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:45:16,127 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-26 10:45:16,127 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-26 10:45:16,128 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-26 10:45:16,128 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-26 10:45:16,128 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-11-26 10:45:16,128 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-26 10:45:16,128 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-11-26 10:45:16,136 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.11 10:45:16 BoogieIcfgContainer [2023-11-26 10:45:16,136 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-26 10:45:16,137 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 10:45:16,137 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 10:45:16,137 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 10:45:16,138 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:45:14" (3/4) ... [2023-11-26 10:45:16,140 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-26 10:45:16,141 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 10:45:16,142 INFO L158 Benchmark]: Toolchain (without parser) took 2121.99ms. Allocated memory is still 159.4MB. Free memory was 116.2MB in the beginning and 85.9MB in the end (delta: 30.3MB). Peak memory consumption was 31.8MB. Max. memory is 16.1GB. [2023-11-26 10:45:16,143 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 109.1MB. Free memory is still 58.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 10:45:16,143 INFO L158 Benchmark]: CACSL2BoogieTranslator took 230.93ms. Allocated memory is still 159.4MB. Free memory was 116.2MB in the beginning and 106.7MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-26 10:45:16,144 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.26ms. Allocated memory is still 159.4MB. Free memory was 106.7MB in the beginning and 105.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 10:45:16,145 INFO L158 Benchmark]: Boogie Preprocessor took 27.79ms. Allocated memory is still 159.4MB. Free memory was 105.5MB in the beginning and 104.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 10:45:16,146 INFO L158 Benchmark]: RCFGBuilder took 299.37ms. Allocated memory is still 159.4MB. Free memory was 103.8MB in the beginning and 96.2MB in the end (delta: 7.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-26 10:45:16,146 INFO L158 Benchmark]: BuchiAutomizer took 1524.58ms. Allocated memory is still 159.4MB. Free memory was 95.8MB in the beginning and 85.9MB in the end (delta: 9.9MB). Peak memory consumption was 10.9MB. Max. memory is 16.1GB. [2023-11-26 10:45:16,147 INFO L158 Benchmark]: Witness Printer took 4.61ms. Allocated memory is still 159.4MB. Free memory is still 85.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 10:45:16,150 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 109.1MB. Free memory is still 58.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 230.93ms. Allocated memory is still 159.4MB. Free memory was 116.2MB in the beginning and 106.7MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.26ms. Allocated memory is still 159.4MB. Free memory was 106.7MB in the beginning and 105.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 27.79ms. Allocated memory is still 159.4MB. Free memory was 105.5MB in the beginning and 104.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 299.37ms. Allocated memory is still 159.4MB. Free memory was 103.8MB in the beginning and 96.2MB in the end (delta: 7.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1524.58ms. Allocated memory is still 159.4MB. Free memory was 95.8MB in the beginning and 85.9MB in the end (delta: 9.9MB). Peak memory consumption was 10.9MB. Max. memory is 16.1GB. * Witness Printer took 4.61ms. Allocated memory is still 159.4MB. Free memory is still 85.9MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IfThenElseExpression (if -2 * ~a~0 + 4 * ~x~0 > 0 then 1 else 0) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IfThenElseExpression (if -2 * ~a~0 + 4 * ~x~0 > 0 then -2 * ~a~0 + 4 * ~x~0 else 3 + 2 * ~a~0) could not be translated * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has 2-nested ranking function null, null and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.4s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. 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 [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 3 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 11 IncrementalHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 3 mSDtfsCounter, 11 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital19 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq168 hnf93 smp100 dnf100 smp100 tf106 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 118ms VariablesStem: 0 VariablesLoop: 4 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 3 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-11-26 10:45:16,177 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c5e491-27af-448e-89ad-9fbc0b41ef60/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2023-11-26 10:45:16,369 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c5e491-27af-448e-89ad-9fbc0b41ef60/bin/uautomizer-verify-VRDe98Ueme/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