./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loops/while_infinite_loop_4.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e7bb482b 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_1d5087fc-148b-4e72-83da-d3759ec8e3fa/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d5087fc-148b-4e72-83da-d3759ec8e3fa/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_1d5087fc-148b-4e72-83da-d3759ec8e3fa/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d5087fc-148b-4e72-83da-d3759ec8e3fa/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loops/while_infinite_loop_4.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d5087fc-148b-4e72-83da-d3759ec8e3fa/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_1d5087fc-148b-4e72-83da-d3759ec8e3fa/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 4e1af5f99f69a9274241fcc833ef9ca578ac40199221caab0e395b3d77967510 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 23:06:33,248 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 23:06:33,316 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d5087fc-148b-4e72-83da-d3759ec8e3fa/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Termination-32bit-Automizer_Default.epf [2023-11-06 23:06:33,321 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 23:06:33,322 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 23:06:33,349 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 23:06:33,349 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 23:06:33,350 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 23:06:33,351 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 23:06:33,352 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 23:06:33,352 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 23:06:33,353 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-06 23:06:33,353 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-06 23:06:33,354 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-06 23:06:33,354 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-06 23:06:33,355 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-06 23:06:33,355 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-06 23:06:33,356 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 23:06:33,356 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-06 23:06:33,357 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 23:06:33,361 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 23:06:33,362 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 23:06:33,362 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 23:06:33,363 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-06 23:06:33,363 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-06 23:06:33,364 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-06 23:06:33,364 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 23:06:33,364 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 23:06:33,365 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 23:06:33,365 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-06 23:06:33,367 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 23:06:33,367 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 23:06:33,367 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 23:06:33,367 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 23:06:33,368 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 23:06:33,369 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-06 23:06:33,369 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_1d5087fc-148b-4e72-83da-d3759ec8e3fa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d5087fc-148b-4e72-83da-d3759ec8e3fa/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4e1af5f99f69a9274241fcc833ef9ca578ac40199221caab0e395b3d77967510 [2023-11-06 23:06:33,683 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 23:06:33,705 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 23:06:33,708 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 23:06:33,710 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 23:06:33,710 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 23:06:33,712 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d5087fc-148b-4e72-83da-d3759ec8e3fa/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/loops/while_infinite_loop_4.c [2023-11-06 23:06:36,867 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 23:06:37,111 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 23:06:37,112 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d5087fc-148b-4e72-83da-d3759ec8e3fa/sv-benchmarks/c/loops/while_infinite_loop_4.c [2023-11-06 23:06:37,119 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d5087fc-148b-4e72-83da-d3759ec8e3fa/bin/uautomizer-verify-WvqO1wxjHP/data/3c6c94586/d03d23a708da4165974a5db6c0777ea0/FLAG70a2240f8 [2023-11-06 23:06:37,139 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d5087fc-148b-4e72-83da-d3759ec8e3fa/bin/uautomizer-verify-WvqO1wxjHP/data/3c6c94586/d03d23a708da4165974a5db6c0777ea0 [2023-11-06 23:06:37,148 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 23:06:37,150 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 23:06:37,151 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 23:06:37,151 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 23:06:37,158 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 23:06:37,159 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:06:37" (1/1) ... [2023-11-06 23:06:37,161 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b8acba8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:06:37, skipping insertion in model container [2023-11-06 23:06:37,161 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:06:37" (1/1) ... [2023-11-06 23:06:37,184 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 23:06:37,351 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 23:06:37,370 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 23:06:37,387 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 23:06:37,403 INFO L206 MainTranslator]: Completed translation [2023-11-06 23:06:37,404 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:06:37 WrapperNode [2023-11-06 23:06:37,404 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 23:06:37,408 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 23:06:37,408 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 23:06:37,408 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 23:06:37,416 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:06:37" (1/1) ... [2023-11-06 23:06:37,425 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:06:37" (1/1) ... [2023-11-06 23:06:37,444 INFO L138 Inliner]: procedures = 13, calls = 11, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 40 [2023-11-06 23:06:37,445 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 23:06:37,445 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 23:06:37,446 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 23:06:37,446 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 23:06:37,455 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:06:37" (1/1) ... [2023-11-06 23:06:37,455 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:06:37" (1/1) ... [2023-11-06 23:06:37,457 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:06:37" (1/1) ... [2023-11-06 23:06:37,457 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:06:37" (1/1) ... [2023-11-06 23:06:37,462 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:06:37" (1/1) ... [2023-11-06 23:06:37,468 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:06:37" (1/1) ... [2023-11-06 23:06:37,473 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:06:37" (1/1) ... [2023-11-06 23:06:37,474 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:06:37" (1/1) ... [2023-11-06 23:06:37,480 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 23:06:37,481 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 23:06:37,481 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 23:06:37,481 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 23:06:37,482 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:06:37" (1/1) ... [2023-11-06 23:06:37,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 23:06:37,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d5087fc-148b-4e72-83da-d3759ec8e3fa/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:06:37,526 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d5087fc-148b-4e72-83da-d3759ec8e3fa/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 23:06:37,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d5087fc-148b-4e72-83da-d3759ec8e3fa/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-06 23:06:37,575 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 23:06:37,575 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 23:06:37,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 23:06:37,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 23:06:37,653 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 23:06:37,657 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 23:06:37,750 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 23:06:37,757 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 23:06:37,758 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-06 23:06:37,760 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:06:37 BoogieIcfgContainer [2023-11-06 23:06:37,760 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 23:06:37,762 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-06 23:06:37,762 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-06 23:06:37,766 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-06 23:06:37,767 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 23:06:37,767 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.11 11:06:37" (1/3) ... [2023-11-06 23:06:37,768 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6756325c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.11 11:06:37, skipping insertion in model container [2023-11-06 23:06:37,769 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 23:06:37,769 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:06:37" (2/3) ... [2023-11-06 23:06:37,769 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6756325c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.11 11:06:37, skipping insertion in model container [2023-11-06 23:06:37,769 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 23:06:37,770 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:06:37" (3/3) ... [2023-11-06 23:06:37,771 INFO L332 chiAutomizerObserver]: Analyzing ICFG while_infinite_loop_4.c [2023-11-06 23:06:37,835 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-06 23:06:37,835 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-06 23:06:37,836 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-06 23:06:37,836 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-06 23:06:37,836 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-06 23:06:37,836 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-06 23:06:37,836 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-06 23:06:37,837 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-06 23:06:37,841 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 17 states, 16 states have (on average 1.375) internal successors, (22), 16 states have internal predecessors, (22), 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 23:06:37,877 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2023-11-06 23:06:37,879 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 23:06:37,879 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 23:06:37,886 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-06 23:06:37,887 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2023-11-06 23:06:37,887 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-06 23:06:37,887 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 17 states, 16 states have (on average 1.375) internal successors, (22), 16 states have internal predecessors, (22), 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 23:06:37,893 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2023-11-06 23:06:37,894 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 23:06:37,894 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 23:06:37,895 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-06 23:06:37,896 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2023-11-06 23:06:37,905 INFO L748 eck$LassoCheckResult]: Stem: 13#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(24, 2);call #Ultimate.allocInit(12, 3);~x~0 := 0; 4#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1; 12#L26-2true [2023-11-06 23:06:37,906 INFO L750 eck$LassoCheckResult]: Loop: 12#L26-2true assume !false;assume { :begin_inline_eval } true; 16#$Ultimate##11true assume false; 14#L16-2true assume { :end_inline_eval } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 == ~x~0 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 10#L6true assume !(0 == __VERIFIER_assert_~cond#1); 3#L6-2true havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 12#L26-2true [2023-11-06 23:06:37,914 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:06:37,915 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-11-06 23:06:37,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:06:37,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336312787] [2023-11-06 23:06:37,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:06:37,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:06:38,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 23:06:38,075 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 23:06:38,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 23:06:38,127 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 23:06:38,133 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:06:38,134 INFO L85 PathProgramCache]: Analyzing trace with hash 39349236, now seen corresponding path program 1 times [2023-11-06 23:06:38,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:06:38,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955501604] [2023-11-06 23:06:38,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:06:38,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:06:38,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:06:38,199 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 23:06:38,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:06:38,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955501604] [2023-11-06 23:06:38,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955501604] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:06:38,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:06:38,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 23:06:38,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328070029] [2023-11-06 23:06:38,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:06:38,207 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-06 23:06:38,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:06:38,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 23:06:38,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 23:06:38,266 INFO L87 Difference]: Start difference. First operand has 17 states, 16 states have (on average 1.375) internal successors, (22), 16 states have internal predecessors, (22), 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 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 23:06:38,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:06:38,273 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2023-11-06 23:06:38,274 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 8 transitions. [2023-11-06 23:06:38,276 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-11-06 23:06:38,281 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 7 states and 7 transitions. [2023-11-06 23:06:38,282 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2023-11-06 23:06:38,283 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2023-11-06 23:06:38,284 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 7 transitions. [2023-11-06 23:06:38,284 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:06:38,284 INFO L218 hiAutomatonCegarLoop]: Abstraction has 7 states and 7 transitions. [2023-11-06 23:06:38,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 7 transitions. [2023-11-06 23:06:38,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2023-11-06 23:06:38,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.0) internal successors, (7), 6 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) [2023-11-06 23:06:38,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2023-11-06 23:06:38,314 INFO L240 hiAutomatonCegarLoop]: Abstraction has 7 states and 7 transitions. [2023-11-06 23:06:38,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 23:06:38,327 INFO L428 stractBuchiCegarLoop]: Abstraction has 7 states and 7 transitions. [2023-11-06 23:06:38,327 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-06 23:06:38,327 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 7 transitions. [2023-11-06 23:06:38,328 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-11-06 23:06:38,329 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 23:06:38,329 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 23:06:38,330 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-06 23:06:38,330 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2023-11-06 23:06:38,330 INFO L748 eck$LassoCheckResult]: Stem: 37#$Ultimate##0 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(24, 2);call #Ultimate.allocInit(12, 3);~x~0 := 0; 38#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1; 34#L26-2 [2023-11-06 23:06:38,330 INFO L750 eck$LassoCheckResult]: Loop: 34#L26-2 assume !false;assume { :begin_inline_eval } true; 36#$Ultimate##11 assume !false;~x~0 := 1; 39#L16-2 assume { :end_inline_eval } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 == ~x~0 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 35#L6 assume !(0 == __VERIFIER_assert_~cond#1); 33#L6-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 34#L26-2 [2023-11-06 23:06:38,331 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:06:38,332 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2023-11-06 23:06:38,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:06:38,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595572778] [2023-11-06 23:06:38,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:06:38,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:06:38,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 23:06:38,350 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 23:06:38,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 23:06:38,369 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 23:06:38,370 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:06:38,371 INFO L85 PathProgramCache]: Analyzing trace with hash 39408818, now seen corresponding path program 1 times [2023-11-06 23:06:38,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:06:38,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501209233] [2023-11-06 23:06:38,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:06:38,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:06:38,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:06:38,513 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 23:06:38,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:06:38,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501209233] [2023-11-06 23:06:38,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501209233] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:06:38,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:06:38,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 23:06:38,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476793276] [2023-11-06 23:06:38,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:06:38,517 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-06 23:06:38,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:06:38,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 23:06:38,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 23:06:38,518 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. cyclomatic complexity: 1 Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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 23:06:38,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:06:38,573 INFO L93 Difference]: Finished difference Result 6 states and 5 transitions. [2023-11-06 23:06:38,573 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 6 states and 5 transitions. [2023-11-06 23:06:38,574 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-06 23:06:38,574 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 6 states to 0 states and 0 transitions. [2023-11-06 23:06:38,574 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-06 23:06:38,574 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-06 23:06:38,575 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-06 23:06:38,575 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:06:38,575 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-06 23:06:38,575 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-06 23:06:38,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 23:06:38,576 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-06 23:06:38,576 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-06 23:06:38,577 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-11-06 23:06:38,577 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-06 23:06:38,577 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-11-06 23:06:38,587 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.11 11:06:38 BoogieIcfgContainer [2023-11-06 23:06:38,587 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-06 23:06:38,588 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 23:06:38,588 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 23:06:38,588 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 23:06:38,589 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:06:37" (3/4) ... [2023-11-06 23:06:38,590 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-06 23:06:38,592 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 23:06:38,596 INFO L158 Benchmark]: Toolchain (without parser) took 1443.41ms. Allocated memory was 117.4MB in the beginning and 153.1MB in the end (delta: 35.7MB). Free memory was 73.7MB in the beginning and 105.9MB in the end (delta: -32.1MB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB. [2023-11-06 23:06:38,599 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 117.4MB. Free memory is still 89.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 23:06:38,601 INFO L158 Benchmark]: CACSL2BoogieTranslator took 253.46ms. Allocated memory is still 117.4MB. Free memory was 73.4MB in the beginning and 63.6MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-06 23:06:38,608 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.41ms. Allocated memory is still 117.4MB. Free memory was 63.6MB in the beginning and 62.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 23:06:38,608 INFO L158 Benchmark]: Boogie Preprocessor took 34.39ms. Allocated memory is still 117.4MB. Free memory was 62.3MB in the beginning and 61.1MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 23:06:38,609 INFO L158 Benchmark]: RCFGBuilder took 279.54ms. Allocated memory is still 117.4MB. Free memory was 61.1MB in the beginning and 52.4MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-06 23:06:38,609 INFO L158 Benchmark]: BuchiAutomizer took 825.49ms. Allocated memory was 117.4MB in the beginning and 153.1MB in the end (delta: 35.7MB). Free memory was 52.2MB in the beginning and 105.9MB in the end (delta: -53.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 23:06:38,610 INFO L158 Benchmark]: Witness Printer took 4.91ms. Allocated memory is still 153.1MB. Free memory is still 105.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 23:06:38,613 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 117.4MB. Free memory is still 89.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 253.46ms. Allocated memory is still 117.4MB. Free memory was 73.4MB in the beginning and 63.6MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.41ms. Allocated memory is still 117.4MB. Free memory was 63.6MB in the beginning and 62.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.39ms. Allocated memory is still 117.4MB. Free memory was 62.3MB in the beginning and 61.1MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 279.54ms. Allocated memory is still 117.4MB. Free memory was 61.1MB in the beginning and 52.4MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 825.49ms. Allocated memory was 117.4MB in the beginning and 153.1MB in the end (delta: 35.7MB). Free memory was 52.2MB in the beginning and 105.9MB in the end (delta: -53.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.91ms. Allocated memory is still 153.1MB. Free memory is still 105.9MB. 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 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic). 2 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.7s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 0.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 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 [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1 mSDsluCounter, 18 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2 IncrementalHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 12 mSDtfsCounter, 2 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI2 SFLT0 conc0 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 23:06:38,653 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d5087fc-148b-4e72-83da-d3759ec8e3fa/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