./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loops/n.c40.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2e77fcf-4805-4520-bea6-888dff34e768/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2e77fcf-4805-4520-bea6-888dff34e768/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2e77fcf-4805-4520-bea6-888dff34e768/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2e77fcf-4805-4520-bea6-888dff34e768/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loops/n.c40.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2e77fcf-4805-4520-bea6-888dff34e768/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2e77fcf-4805-4520-bea6-888dff34e768/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 ec147baa41deaa706a3db1972af791532e50c36ff3c23d3d92f8d6bea9417e65 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 23:11:53,897 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 23:11:54,018 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2e77fcf-4805-4520-bea6-888dff34e768/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Termination-32bit-Automizer_Default.epf [2023-11-06 23:11:54,024 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 23:11:54,025 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 23:11:54,059 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 23:11:54,060 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 23:11:54,061 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 23:11:54,062 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 23:11:54,063 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 23:11:54,063 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 23:11:54,064 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-06 23:11:54,065 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-06 23:11:54,065 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-06 23:11:54,066 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-06 23:11:54,067 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-06 23:11:54,068 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-06 23:11:54,068 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 23:11:54,069 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-06 23:11:54,070 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 23:11:54,070 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 23:11:54,071 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 23:11:54,072 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 23:11:54,073 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-06 23:11:54,073 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-06 23:11:54,074 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-06 23:11:54,074 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 23:11:54,075 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 23:11:54,076 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 23:11:54,076 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-06 23:11:54,077 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 23:11:54,077 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 23:11:54,078 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 23:11:54,079 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 23:11:54,079 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 23:11:54,080 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-06 23:11:54,080 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_a2e77fcf-4805-4520-bea6-888dff34e768/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2e77fcf-4805-4520-bea6-888dff34e768/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ec147baa41deaa706a3db1972af791532e50c36ff3c23d3d92f8d6bea9417e65 [2023-11-06 23:11:54,412 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 23:11:54,446 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 23:11:54,449 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 23:11:54,450 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 23:11:54,451 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 23:11:54,453 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2e77fcf-4805-4520-bea6-888dff34e768/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/loops/n.c40.c [2023-11-06 23:11:58,007 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 23:11:58,259 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 23:11:58,260 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2e77fcf-4805-4520-bea6-888dff34e768/sv-benchmarks/c/loops/n.c40.c [2023-11-06 23:11:58,269 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2e77fcf-4805-4520-bea6-888dff34e768/bin/uautomizer-verify-WvqO1wxjHP/data/6ca62189e/f02cfea2ed2743128849c7866f51ca69/FLAG015c63432 [2023-11-06 23:11:58,302 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2e77fcf-4805-4520-bea6-888dff34e768/bin/uautomizer-verify-WvqO1wxjHP/data/6ca62189e/f02cfea2ed2743128849c7866f51ca69 [2023-11-06 23:11:58,315 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 23:11:58,317 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 23:11:58,321 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 23:11:58,322 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 23:11:58,329 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 23:11:58,330 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:11:58" (1/1) ... [2023-11-06 23:11:58,331 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7348424c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:11:58, skipping insertion in model container [2023-11-06 23:11:58,332 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:11:58" (1/1) ... [2023-11-06 23:11:58,359 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 23:11:58,558 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 23:11:58,572 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 23:11:58,590 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 23:11:58,609 INFO L206 MainTranslator]: Completed translation [2023-11-06 23:11:58,610 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:11:58 WrapperNode [2023-11-06 23:11:58,610 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 23:11:58,612 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 23:11:58,612 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 23:11:58,612 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 23:11:58,622 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:11:58" (1/1) ... [2023-11-06 23:11:58,631 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:11:58" (1/1) ... [2023-11-06 23:11:58,663 INFO L138 Inliner]: procedures = 12, calls = 23, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 55 [2023-11-06 23:11:58,663 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 23:11:58,664 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 23:11:58,665 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 23:11:58,666 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 23:11:58,675 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:11:58" (1/1) ... [2023-11-06 23:11:58,676 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:11:58" (1/1) ... [2023-11-06 23:11:58,678 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:11:58" (1/1) ... [2023-11-06 23:11:58,678 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:11:58" (1/1) ... [2023-11-06 23:11:58,685 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:11:58" (1/1) ... [2023-11-06 23:11:58,688 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:11:58" (1/1) ... [2023-11-06 23:11:58,690 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:11:58" (1/1) ... [2023-11-06 23:11:58,691 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:11:58" (1/1) ... [2023-11-06 23:11:58,694 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 23:11:58,695 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 23:11:58,695 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 23:11:58,705 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 23:11:58,713 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:11:58" (1/1) ... [2023-11-06 23:11:58,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 23:11:58,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2e77fcf-4805-4520-bea6-888dff34e768/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:11:58,755 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2e77fcf-4805-4520-bea6-888dff34e768/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 23:11:58,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2e77fcf-4805-4520-bea6-888dff34e768/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-06 23:11:58,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 23:11:58,810 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 23:11:58,811 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 23:11:58,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 23:11:58,812 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 23:11:58,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 23:11:58,956 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 23:11:58,972 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 23:11:59,159 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 23:11:59,166 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 23:11:59,166 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 23:11:59,169 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:11:59 BoogieIcfgContainer [2023-11-06 23:11:59,169 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 23:11:59,170 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-06 23:11:59,171 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-06 23:11:59,175 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-06 23:11:59,176 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 23:11:59,177 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.11 11:11:58" (1/3) ... [2023-11-06 23:11:59,178 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@78d8dc18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.11 11:11:59, skipping insertion in model container [2023-11-06 23:11:59,178 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 23:11:59,179 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:11:58" (2/3) ... [2023-11-06 23:11:59,179 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@78d8dc18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.11 11:11:59, skipping insertion in model container [2023-11-06 23:11:59,179 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 23:11:59,180 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:11:59" (3/3) ... [2023-11-06 23:11:59,181 INFO L332 chiAutomizerObserver]: Analyzing ICFG n.c40.c [2023-11-06 23:11:59,247 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-06 23:11:59,248 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-06 23:11:59,248 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-06 23:11:59,248 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-06 23:11:59,248 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-06 23:11:59,249 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-06 23:11:59,249 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-06 23:11:59,249 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-06 23:11:59,254 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:11:59,276 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-06 23:11:59,276 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 23:11:59,277 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 23:11:59,283 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-06 23:11:59,283 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-06 23:11:59,284 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-06 23:11:59,284 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:11:59,286 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-06 23:11:59,286 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 23:11:59,287 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 23:11:59,287 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-06 23:11:59,287 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-06 23:11:59,297 INFO L748 eck$LassoCheckResult]: Stem: 10#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(8, 2);call write~init~int(110, 2, 0, 1);call write~init~int(46, 2, 1, 1);call write~init~int(99, 2, 2, 1);call write~init~int(52, 2, 3, 1);call write~init~int(48, 2, 4, 1);call write~init~int(46, 2, 5, 1);call write~init~int(99, 2, 6, 1);call write~init~int(0, 2, 7, 1);call #Ultimate.allocInit(12, 3);~#x~0.base, ~#x~0.offset := 4, 0;call #Ultimate.allocInit(100, 4);#memory_int := ~initToZeroAtPointerBaseAddress~int(#memory_int, ~#x~0.base);~#y~0.base, ~#y~0.offset := 5, 0;call #Ultimate.allocInit(100, 5);#memory_int := ~initToZeroAtPointerBaseAddress~int(#memory_int, ~#y~0.base);~i~0 := 0;~j~0 := 0;~k~0 := 0; 4#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~mem6#1, main_#t~post7#1, main_#t~mem5#1, main_#t~mem8#1;havoc main_#t~nondet4#1;~k~0 := main_#t~nondet4#1;havoc main_#t~nondet4#1;~i~0 := 0; 6#L14-3true [2023-11-06 23:11:59,297 INFO L750 eck$LassoCheckResult]: Loop: 6#L14-3true call main_#t~mem5#1 := read~int(~#x~0.base, ~#x~0.offset + ~i~0, 1); 13#L14-1true assume !!(0 != main_#t~mem5#1);havoc main_#t~mem5#1;call main_#t~mem6#1 := read~int(~#x~0.base, ~#x~0.offset + ~i~0, 1);call write~int(main_#t~mem6#1, ~#y~0.base, ~#y~0.offset + ~i~0, 1);havoc main_#t~mem6#1;main_#t~post7#1 := ~i~0;~i~0 := 1 + main_#t~post7#1;havoc main_#t~post7#1; 6#L14-3true [2023-11-06 23:11:59,304 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:11:59,304 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-11-06 23:11:59,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:11:59,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171146286] [2023-11-06 23:11:59,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:11:59,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:11:59,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 23:11:59,423 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 23:11:59,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 23:11:59,472 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 23:11:59,475 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:11:59,475 INFO L85 PathProgramCache]: Analyzing trace with hash 1190, now seen corresponding path program 1 times [2023-11-06 23:11:59,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:11:59,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880901652] [2023-11-06 23:11:59,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:11:59,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:11:59,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 23:11:59,500 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 23:11:59,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 23:11:59,517 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 23:11:59,519 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:11:59,520 INFO L85 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 1 times [2023-11-06 23:11:59,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:11:59,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510450271] [2023-11-06 23:11:59,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:11:59,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:11:59,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:11:59,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:11:59,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:11:59,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510450271] [2023-11-06 23:11:59,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510450271] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:11:59,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:11:59,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 23:11:59,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535637739] [2023-11-06 23:11:59,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:12:00,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:12:00,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 23:12:00,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 23:12:00,088 INFO L87 Difference]: Start difference. First operand has 13 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 4 states have (on average 1.0) internal successors, (4), 4 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) [2023-11-06 23:12:00,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:12:00,175 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2023-11-06 23:12:00,177 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 12 transitions. [2023-11-06 23:12:00,182 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-06 23:12:00,185 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 0 states and 0 transitions. [2023-11-06 23:12:00,186 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-06 23:12:00,187 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-06 23:12:00,188 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-06 23:12:00,188 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:12:00,189 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-06 23:12:00,189 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-06 23:12:00,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 23:12:00,201 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-06 23:12:00,201 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-06 23:12:00,202 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-11-06 23:12:00,202 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-06 23:12:00,202 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-11-06 23:12:00,218 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.11 11:12:00 BoogieIcfgContainer [2023-11-06 23:12:00,218 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-06 23:12:00,220 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 23:12:00,220 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 23:12:00,220 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 23:12:00,221 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:11:59" (3/4) ... [2023-11-06 23:12:00,225 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-06 23:12:00,226 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 23:12:00,228 INFO L158 Benchmark]: Toolchain (without parser) took 1909.57ms. Allocated memory is still 136.3MB. Free memory was 99.4MB in the beginning and 63.1MB in the end (delta: 36.3MB). Peak memory consumption was 33.1MB. Max. memory is 16.1GB. [2023-11-06 23:12:00,229 INFO L158 Benchmark]: CDTParser took 0.72ms. Allocated memory is still 107.0MB. Free memory is still 80.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 23:12:00,230 INFO L158 Benchmark]: CACSL2BoogieTranslator took 289.88ms. Allocated memory is still 136.3MB. Free memory was 98.9MB in the beginning and 88.8MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-06 23:12:00,232 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.89ms. Allocated memory is still 136.3MB. Free memory was 88.8MB in the beginning and 87.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 23:12:00,235 INFO L158 Benchmark]: Boogie Preprocessor took 29.60ms. Allocated memory is still 136.3MB. Free memory was 87.4MB in the beginning and 86.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 23:12:00,243 INFO L158 Benchmark]: RCFGBuilder took 474.48ms. Allocated memory is still 136.3MB. Free memory was 86.3MB in the beginning and 102.0MB in the end (delta: -15.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-06 23:12:00,243 INFO L158 Benchmark]: BuchiAutomizer took 1047.56ms. Allocated memory is still 136.3MB. Free memory was 102.0MB in the beginning and 63.7MB in the end (delta: 38.3MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2023-11-06 23:12:00,245 INFO L158 Benchmark]: Witness Printer took 6.46ms. Allocated memory is still 136.3MB. Free memory was 63.7MB in the beginning and 63.1MB in the end (delta: 563.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 23:12:00,252 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.72ms. Allocated memory is still 107.0MB. Free memory is still 80.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 289.88ms. Allocated memory is still 136.3MB. Free memory was 98.9MB in the beginning and 88.8MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.89ms. Allocated memory is still 136.3MB. Free memory was 88.8MB in the beginning and 87.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 29.60ms. Allocated memory is still 136.3MB. Free memory was 87.4MB in the beginning and 86.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 474.48ms. Allocated memory is still 136.3MB. Free memory was 86.3MB in the beginning and 102.0MB in the end (delta: -15.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 1047.56ms. Allocated memory is still 136.3MB. Free memory was 102.0MB in the beginning and 63.7MB in the end (delta: 38.3MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * Witness Printer took 6.46ms. Allocated memory is still 136.3MB. Free memory was 63.7MB in the beginning and 63.1MB in the end (delta: 563.0kB). There was no memory consumed. 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 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic). 1 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.9s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. 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 [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 19 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 19 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 11 IncrementalHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 8 mSDtfsCounter, 11 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-11-06 23:12:00,284 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2e77fcf-4805-4520-bea6-888dff34e768/bin/uautomizer-verify-WvqO1wxjHP/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