./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-invgen/id_build.i --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_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/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_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-invgen/id_build.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/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_e2018b4e-258a-431e-9f79-1f6b26230481/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 2c4c8975bee6324b0c0486aa99ba8be369d6762a33e8dd5b012191d5fa43c106 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:46:15,088 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:46:15,205 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Termination-32bit-Automizer_Default.epf [2023-11-06 22:46:15,214 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:46:15,215 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:46:15,255 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:46:15,256 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:46:15,257 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:46:15,258 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:46:15,263 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:46:15,264 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:46:15,264 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-06 22:46:15,265 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-06 22:46:15,267 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-06 22:46:15,267 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-06 22:46:15,267 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-06 22:46:15,268 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-06 22:46:15,269 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:46:15,269 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-06 22:46:15,270 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:46:15,270 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:46:15,271 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:46:15,271 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:46:15,273 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-06 22:46:15,273 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-06 22:46:15,274 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-06 22:46:15,274 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:46:15,275 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:46:15,275 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:46:15,275 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-06 22:46:15,277 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:46:15,277 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:46:15,277 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:46:15,278 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:46:15,278 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:46:15,278 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-06 22:46:15,279 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_e2018b4e-258a-431e-9f79-1f6b26230481/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2c4c8975bee6324b0c0486aa99ba8be369d6762a33e8dd5b012191d5fa43c106 [2023-11-06 22:46:15,621 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:46:15,683 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:46:15,687 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:46:15,689 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:46:15,689 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:46:15,691 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/loop-invgen/id_build.i [2023-11-06 22:46:18,870 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:46:19,120 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:46:19,121 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/sv-benchmarks/c/loop-invgen/id_build.i [2023-11-06 22:46:19,128 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/data/c01e33338/d453714b9f804ce78a48a08210e0a02a/FLAG91d4c8786 [2023-11-06 22:46:19,145 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/data/c01e33338/d453714b9f804ce78a48a08210e0a02a [2023-11-06 22:46:19,151 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:46:19,155 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:46:19,160 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:46:19,161 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:46:19,167 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:46:19,167 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:46:19" (1/1) ... [2023-11-06 22:46:19,169 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11b2b5e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:46:19, skipping insertion in model container [2023-11-06 22:46:19,169 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:46:19" (1/1) ... [2023-11-06 22:46:19,192 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:46:19,434 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:46:19,451 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:46:19,476 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:46:19,492 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:46:19,493 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:46:19 WrapperNode [2023-11-06 22:46:19,494 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:46:19,495 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:46:19,495 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:46:19,495 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:46:19,503 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:46:19" (1/1) ... [2023-11-06 22:46:19,513 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:46:19" (1/1) ... [2023-11-06 22:46:19,538 INFO L138 Inliner]: procedures = 16, calls = 9, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 53 [2023-11-06 22:46:19,538 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:46:19,539 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:46:19,540 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:46:19,540 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:46:19,550 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:46:19" (1/1) ... [2023-11-06 22:46:19,551 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:46:19" (1/1) ... [2023-11-06 22:46:19,554 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:46:19" (1/1) ... [2023-11-06 22:46:19,564 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:46:19" (1/1) ... [2023-11-06 22:46:19,570 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:46:19" (1/1) ... [2023-11-06 22:46:19,578 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:46:19" (1/1) ... [2023-11-06 22:46:19,591 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:46:19" (1/1) ... [2023-11-06 22:46:19,597 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:46:19" (1/1) ... [2023-11-06 22:46:19,599 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:46:19,602 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:46:19,603 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:46:19,603 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:46:19,605 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:46:19" (1/1) ... [2023-11-06 22:46:19,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:46:19,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:46:19,644 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:46:19,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-06 22:46:19,682 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:46:19,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:46:19,683 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:46:19,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:46:19,759 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:46:19,761 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:46:20,027 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:46:20,033 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:46:20,033 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-06 22:46:20,035 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:46:20 BoogieIcfgContainer [2023-11-06 22:46:20,035 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:46:20,036 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-06 22:46:20,037 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-06 22:46:20,041 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-06 22:46:20,047 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 22:46:20,047 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.11 10:46:19" (1/3) ... [2023-11-06 22:46:20,049 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7f764138 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.11 10:46:20, skipping insertion in model container [2023-11-06 22:46:20,049 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 22:46:20,050 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:46:19" (2/3) ... [2023-11-06 22:46:20,051 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7f764138 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.11 10:46:20, skipping insertion in model container [2023-11-06 22:46:20,052 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 22:46:20,052 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:46:20" (3/3) ... [2023-11-06 22:46:20,053 INFO L332 chiAutomizerObserver]: Analyzing ICFG id_build.i [2023-11-06 22:46:20,144 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-06 22:46:20,144 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-06 22:46:20,144 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-06 22:46:20,145 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-06 22:46:20,145 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-06 22:46:20,145 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-06 22:46:20,145 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-06 22:46:20,146 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-06 22:46:20,151 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 20 states, 19 states have (on average 1.4210526315789473) internal successors, (27), 19 states have internal predecessors, (27), 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 22:46:20,176 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 14 [2023-11-06 22:46:20,177 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:46:20,177 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:46:20,183 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-06 22:46:20,184 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-06 22:46:20,184 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-06 22:46:20,185 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 20 states, 19 states have (on average 1.4210526315789473) internal successors, (27), 19 states have internal predecessors, (27), 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 22:46:20,188 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 14 [2023-11-06 22:46:20,188 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:46:20,188 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:46:20,188 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-06 22:46:20,189 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-06 22:46:20,196 INFO L748 eck$LassoCheckResult]: Stem: 15#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~post3#1, main_#t~post2#1, main_~offset~0#1, main_~length~0#1, main_~nlen~0#1, main_~i~0#1, main_~j~0#1;havoc main_~offset~0#1;havoc main_~length~0#1;havoc main_#t~nondet1#1;main_~nlen~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~i~0#1 := 0; 16#L27-3true [2023-11-06 22:46:20,197 INFO L750 eck$LassoCheckResult]: Loop: 16#L27-3true assume !!(main_~i~0#1 < main_~nlen~0#1);main_~j~0#1 := 0; 17#L28-3true assume !(main_~j~0#1 < 8); 10#L27-2true main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 16#L27-3true [2023-11-06 22:46:20,203 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:46:20,203 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-11-06 22:46:20,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:46:20,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058827016] [2023-11-06 22:46:20,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:46:20,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:46:20,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:46:20,298 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:46:20,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:46:20,329 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:46:20,333 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:46:20,333 INFO L85 PathProgramCache]: Analyzing trace with hash 39955, now seen corresponding path program 1 times [2023-11-06 22:46:20,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:46:20,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273727561] [2023-11-06 22:46:20,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:46:20,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:46:20,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:20,433 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 22:46:20,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:46:20,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273727561] [2023-11-06 22:46:20,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273727561] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:46:20,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:46:20,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:46:20,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069960946] [2023-11-06 22:46:20,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:46:20,441 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-06 22:46:20,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:46:20,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:46:20,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:46:20,480 INFO L87 Difference]: Start difference. First operand has 20 states, 19 states have (on average 1.4210526315789473) internal successors, (27), 19 states have internal predecessors, (27), 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 1.0) internal successors, (3), 2 states have internal predecessors, (3), 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 22:46:20,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:46:20,505 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2023-11-06 22:46:20,506 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 29 transitions. [2023-11-06 22:46:20,508 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 14 [2023-11-06 22:46:20,512 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 16 states and 17 transitions. [2023-11-06 22:46:20,514 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2023-11-06 22:46:20,514 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2023-11-06 22:46:20,515 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 17 transitions. [2023-11-06 22:46:20,515 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:46:20,516 INFO L218 hiAutomatonCegarLoop]: Abstraction has 16 states and 17 transitions. [2023-11-06 22:46:20,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 17 transitions. [2023-11-06 22:46:20,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 11. [2023-11-06 22:46:20,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:46:20,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2023-11-06 22:46:20,543 INFO L240 hiAutomatonCegarLoop]: Abstraction has 11 states and 12 transitions. [2023-11-06 22:46:20,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:46:20,549 INFO L428 stractBuchiCegarLoop]: Abstraction has 11 states and 12 transitions. [2023-11-06 22:46:20,549 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-06 22:46:20,549 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 12 transitions. [2023-11-06 22:46:20,550 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2023-11-06 22:46:20,550 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:46:20,550 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:46:20,551 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-06 22:46:20,551 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:46:20,551 INFO L748 eck$LassoCheckResult]: Stem: 62#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 63#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~post3#1, main_#t~post2#1, main_~offset~0#1, main_~length~0#1, main_~nlen~0#1, main_~i~0#1, main_~j~0#1;havoc main_~offset~0#1;havoc main_~length~0#1;havoc main_#t~nondet1#1;main_~nlen~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~i~0#1 := 0; 64#L27-3 [2023-11-06 22:46:20,551 INFO L750 eck$LassoCheckResult]: Loop: 64#L27-3 assume !!(main_~i~0#1 < main_~nlen~0#1);main_~j~0#1 := 0; 65#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 57#L18 assume !(0 == __VERIFIER_assert_~cond#1); 58#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 59#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 60#L18-5 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 61#L28-2 main_#t~post3#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 66#L28-3 assume !(main_~j~0#1 < 8); 67#L27-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 64#L27-3 [2023-11-06 22:46:20,552 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:46:20,552 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2023-11-06 22:46:20,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:46:20,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701697991] [2023-11-06 22:46:20,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:46:20,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:46:20,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:46:20,561 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:46:20,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:46:20,569 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:46:20,570 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:46:20,570 INFO L85 PathProgramCache]: Analyzing trace with hash -401152879, now seen corresponding path program 1 times [2023-11-06 22:46:20,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:46:20,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703824547] [2023-11-06 22:46:20,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:46:20,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:46:20,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:20,646 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:46:20,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:46:20,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703824547] [2023-11-06 22:46:20,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703824547] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:46:20,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1262904700] [2023-11-06 22:46:20,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:46:20,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:46:20,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:46:20,652 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:46:20,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-06 22:46:20,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:20,736 INFO L262 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:46:20,738 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:46:20,792 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:46:20,792 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:46:20,856 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:46:20,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1262904700] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:46:20,856 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:46:20,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2023-11-06 22:46:20,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325243981] [2023-11-06 22:46:20,857 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:46:20,858 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-06 22:46:20,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:46:20,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:46:20,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:46:20,859 INFO L87 Difference]: Start difference. First operand 11 states and 12 transitions. cyclomatic complexity: 2 Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:46:20,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:46:20,904 INFO L93 Difference]: Finished difference Result 29 states and 30 transitions. [2023-11-06 22:46:20,904 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 30 transitions. [2023-11-06 22:46:20,906 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 27 [2023-11-06 22:46:20,907 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 29 states and 30 transitions. [2023-11-06 22:46:20,907 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2023-11-06 22:46:20,908 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2023-11-06 22:46:20,908 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 30 transitions. [2023-11-06 22:46:20,908 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:46:20,909 INFO L218 hiAutomatonCegarLoop]: Abstraction has 29 states and 30 transitions. [2023-11-06 22:46:20,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 30 transitions. [2023-11-06 22:46:20,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2023-11-06 22:46:20,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 29 states have (on average 1.0344827586206897) internal successors, (30), 28 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:46:20,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2023-11-06 22:46:20,913 INFO L240 hiAutomatonCegarLoop]: Abstraction has 29 states and 30 transitions. [2023-11-06 22:46:20,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:46:20,915 INFO L428 stractBuchiCegarLoop]: Abstraction has 29 states and 30 transitions. [2023-11-06 22:46:20,915 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-06 22:46:20,915 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 29 states and 30 transitions. [2023-11-06 22:46:20,917 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 27 [2023-11-06 22:46:20,917 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:46:20,917 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:46:20,918 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-06 22:46:20,918 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [4, 4, 4, 4, 4, 4, 1, 1, 1] [2023-11-06 22:46:20,918 INFO L748 eck$LassoCheckResult]: Stem: 160#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 161#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~post3#1, main_#t~post2#1, main_~offset~0#1, main_~length~0#1, main_~nlen~0#1, main_~i~0#1, main_~j~0#1;havoc main_~offset~0#1;havoc main_~length~0#1;havoc main_#t~nondet1#1;main_~nlen~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~i~0#1 := 0; 162#L27-3 [2023-11-06 22:46:20,919 INFO L750 eck$LassoCheckResult]: Loop: 162#L27-3 assume !!(main_~i~0#1 < main_~nlen~0#1);main_~j~0#1 := 0; 163#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 182#L18 assume !(0 == __VERIFIER_assert_~cond#1); 156#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 157#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 158#L18-5 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 159#L28-2 main_#t~post3#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 164#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 154#L18 assume !(0 == __VERIFIER_assert_~cond#1); 155#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 181#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 180#L18-5 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 179#L28-2 main_#t~post3#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 178#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 177#L18 assume !(0 == __VERIFIER_assert_~cond#1); 176#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 175#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 174#L18-5 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 173#L28-2 main_#t~post3#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 172#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 167#L18 assume !(0 == __VERIFIER_assert_~cond#1); 171#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 170#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 169#L18-5 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 168#L28-2 main_#t~post3#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 166#L28-3 assume !(main_~j~0#1 < 8); 165#L27-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 162#L27-3 [2023-11-06 22:46:20,919 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:46:20,920 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 3 times [2023-11-06 22:46:20,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:46:20,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822759916] [2023-11-06 22:46:20,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:46:20,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:46:20,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:46:20,929 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:46:20,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:46:20,936 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:46:20,937 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:46:20,937 INFO L85 PathProgramCache]: Analyzing trace with hash -620742901, now seen corresponding path program 2 times [2023-11-06 22:46:20,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:46:20,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408860566] [2023-11-06 22:46:20,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:46:20,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:46:20,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:21,146 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:46:21,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:46:21,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408860566] [2023-11-06 22:46:21,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408860566] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:46:21,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1843460468] [2023-11-06 22:46:21,148 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 22:46:21,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:46:21,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:46:21,190 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:46:21,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-06 22:46:21,288 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-06 22:46:21,289 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:46:21,290 INFO L262 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 22:46:21,293 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:46:21,383 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:46:21,383 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:46:21,487 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:46:21,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1843460468] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:46:21,488 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:46:21,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 9 [2023-11-06 22:46:21,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879219077] [2023-11-06 22:46:21,489 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:46:21,491 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-06 22:46:21,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:46:21,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-06 22:46:21,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:46:21,493 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. cyclomatic complexity: 2 Second operand has 10 states, 10 states have (on average 4.7) internal successors, (47), 9 states have internal predecessors, (47), 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 22:46:21,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:46:21,544 INFO L93 Difference]: Finished difference Result 53 states and 54 transitions. [2023-11-06 22:46:21,545 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 53 states and 54 transitions. [2023-11-06 22:46:21,547 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 51 [2023-11-06 22:46:21,549 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 53 states to 53 states and 54 transitions. [2023-11-06 22:46:21,549 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 53 [2023-11-06 22:46:21,550 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 53 [2023-11-06 22:46:21,550 INFO L73 IsDeterministic]: Start isDeterministic. Operand 53 states and 54 transitions. [2023-11-06 22:46:21,550 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:46:21,551 INFO L218 hiAutomatonCegarLoop]: Abstraction has 53 states and 54 transitions. [2023-11-06 22:46:21,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states and 54 transitions. [2023-11-06 22:46:21,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2023-11-06 22:46:21,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 53 states have (on average 1.0188679245283019) internal successors, (54), 52 states have internal predecessors, (54), 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 22:46:21,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 54 transitions. [2023-11-06 22:46:21,561 INFO L240 hiAutomatonCegarLoop]: Abstraction has 53 states and 54 transitions. [2023-11-06 22:46:21,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-06 22:46:21,563 INFO L428 stractBuchiCegarLoop]: Abstraction has 53 states and 54 transitions. [2023-11-06 22:46:21,564 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-11-06 22:46:21,564 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 53 states and 54 transitions. [2023-11-06 22:46:21,569 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 51 [2023-11-06 22:46:21,571 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:46:21,571 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:46:21,573 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-06 22:46:21,575 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [8, 8, 8, 8, 8, 8, 1, 1, 1] [2023-11-06 22:46:21,576 INFO L748 eck$LassoCheckResult]: Stem: 411#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 412#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~post3#1, main_#t~post2#1, main_~offset~0#1, main_~length~0#1, main_~nlen~0#1, main_~i~0#1, main_~j~0#1;havoc main_~offset~0#1;havoc main_~length~0#1;havoc main_#t~nondet1#1;main_~nlen~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~i~0#1 := 0; 413#L27-3 [2023-11-06 22:46:21,576 INFO L750 eck$LassoCheckResult]: Loop: 413#L27-3 assume !!(main_~i~0#1 < main_~nlen~0#1);main_~j~0#1 := 0; 414#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 457#L18 assume !(0 == __VERIFIER_assert_~cond#1); 407#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 408#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 409#L18-5 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 410#L28-2 main_#t~post3#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 415#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 405#L18 assume !(0 == __VERIFIER_assert_~cond#1); 406#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 456#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 455#L18-5 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 454#L28-2 main_#t~post3#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 453#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 452#L18 assume !(0 == __VERIFIER_assert_~cond#1); 451#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 450#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 449#L18-5 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 448#L28-2 main_#t~post3#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 447#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 446#L18 assume !(0 == __VERIFIER_assert_~cond#1); 445#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 444#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 443#L18-5 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 442#L28-2 main_#t~post3#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 441#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 440#L18 assume !(0 == __VERIFIER_assert_~cond#1); 439#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 438#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 437#L18-5 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 436#L28-2 main_#t~post3#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 435#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 434#L18 assume !(0 == __VERIFIER_assert_~cond#1); 433#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 432#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 431#L18-5 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 430#L28-2 main_#t~post3#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 429#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 428#L18 assume !(0 == __VERIFIER_assert_~cond#1); 427#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 426#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 425#L18-5 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 424#L28-2 main_#t~post3#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 423#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 418#L18 assume !(0 == __VERIFIER_assert_~cond#1); 422#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 421#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 420#L18-5 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 419#L28-2 main_#t~post3#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 417#L28-3 assume !(main_~j~0#1 < 8); 416#L27-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 413#L27-3 [2023-11-06 22:46:21,577 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:46:21,583 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 4 times [2023-11-06 22:46:21,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:46:21,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562146515] [2023-11-06 22:46:21,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:46:21,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:46:21,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:46:21,597 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:46:21,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:46:21,604 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:46:21,614 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:46:21,615 INFO L85 PathProgramCache]: Analyzing trace with hash -2044958205, now seen corresponding path program 3 times [2023-11-06 22:46:21,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:46:21,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406108159] [2023-11-06 22:46:21,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:46:21,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:46:21,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:46:21,655 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:46:21,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:46:21,714 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:46:21,718 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:46:21,721 INFO L85 PathProgramCache]: Analyzing trace with hash -837778687, now seen corresponding path program 1 times [2023-11-06 22:46:21,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:46:21,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596565968] [2023-11-06 22:46:21,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:46:21,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:46:21,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:46:21,764 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:46:21,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:46:21,808 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:46:22,830 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:46:22,831 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:46:22,831 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:46:22,831 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:46:22,831 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-06 22:46:22,831 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:46:22,832 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:46:22,832 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:46:22,833 INFO L133 ssoRankerPreferences]: Filename of dumped script: id_build.i_Iteration4_Loop [2023-11-06 22:46:22,833 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:46:22,833 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:46:22,851 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:46:22,859 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:46:22,863 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:46:22,872 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:46:22,878 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:46:22,882 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:46:22,938 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:46:22,939 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-06 22:46:22,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:46:22,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:46:22,945 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:46:22,955 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:46:22,955 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:46:22,973 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-06 22:46:22,984 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:46:22,984 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start___VERIFIER_assert_#in~cond#1=0} Honda state: {ULTIMATE.start___VERIFIER_assert_#in~cond#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-06 22:46:22,997 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-11-06 22:46:22,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:46:22,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:46:22,999 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:46:23,022 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:46:23,023 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:46:23,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-06 22:46:23,045 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:46:23,045 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~j~0#1=8} Honda state: {ULTIMATE.start_main_~j~0#1=8} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-06 22:46:23,054 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-11-06 22:46:23,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:46:23,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:46:23,056 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:46:23,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-06 22:46:23,062 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:46:23,062 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:46:23,093 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-11-06 22:46:23,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:46:23,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:46:23,094 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:46:23,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-06 22:46:23,098 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-06 22:46:23,098 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:46:23,166 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-06 22:46:23,176 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-11-06 22:46:23,176 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:46:23,176 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:46:23,176 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:46:23,176 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:46:23,176 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-06 22:46:23,177 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:46:23,177 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:46:23,177 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:46:23,177 INFO L133 ssoRankerPreferences]: Filename of dumped script: id_build.i_Iteration4_Loop [2023-11-06 22:46:23,177 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:46:23,177 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:46:23,178 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:46:23,190 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:46:23,200 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:46:23,212 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:46:23,215 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:46:23,218 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:46:23,273 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:46:23,277 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-06 22:46:23,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:46:23,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:46:23,280 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:46:23,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-06 22:46:23,308 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 [2023-11-06 22:46:23,319 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:46:23,319 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:46:23,320 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:46:23,320 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:46:23,320 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:46:23,322 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:46:23,322 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:46:23,333 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:46:23,337 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-11-06 22:46:23,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:46:23,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:46:23,339 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:46:23,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-11-06 22:46:23,349 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 [2023-11-06 22:46:23,359 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:46:23,359 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:46:23,359 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:46:23,360 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:46:23,360 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:46:23,361 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:46:23,361 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:46:23,376 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-06 22:46:23,382 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-11-06 22:46:23,382 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-06 22:46:23,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:46:23,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:46:23,389 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:46:23,403 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-06 22:46:23,403 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-06 22:46:23,403 INFO L513 LassoAnalysis]: Proved termination. [2023-11-06 22:46:23,404 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~nlen~0#1, ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~nlen~0#1 - 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2023-11-06 22:46:23,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-11-06 22:46:23,412 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-11-06 22:46:23,415 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-06 22:46:23,438 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:46:23,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:23,448 INFO L262 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:46:23,453 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:46:23,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:23,500 INFO L262 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:46:23,504 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:46:23,819 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2023-11-06 22:46:23,823 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 [2023-11-06 22:46:23,824 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 53 states and 54 transitions. cyclomatic complexity: 2 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 22:46:23,877 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 53 states and 54 transitions. cyclomatic complexity: 2. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 104 states and 107 transitions. Complement of second has 4 states. [2023-11-06 22:46:23,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-06 22:46:23,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 22:46:23,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2023-11-06 22:46:23,882 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 2 letters. Loop has 51 letters. [2023-11-06 22:46:23,884 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:46:23,884 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 53 letters. Loop has 51 letters. [2023-11-06 22:46:23,888 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:46:23,888 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 2 letters. Loop has 102 letters. [2023-11-06 22:46:23,891 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:46:23,892 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 104 states and 107 transitions. [2023-11-06 22:46:23,900 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2023-11-06 22:46:23,903 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 104 states to 103 states and 106 transitions. [2023-11-06 22:46:23,903 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 51 [2023-11-06 22:46:23,904 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 52 [2023-11-06 22:46:23,904 INFO L73 IsDeterministic]: Start isDeterministic. Operand 103 states and 106 transitions. [2023-11-06 22:46:23,904 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-06 22:46:23,904 INFO L218 hiAutomatonCegarLoop]: Abstraction has 103 states and 106 transitions. [2023-11-06 22:46:23,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states and 106 transitions. [2023-11-06 22:46:23,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 60. [2023-11-06 22:46:23,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 60 states have (on average 1.05) internal successors, (63), 59 states have internal predecessors, (63), 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 22:46:23,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 63 transitions. [2023-11-06 22:46:23,919 INFO L240 hiAutomatonCegarLoop]: Abstraction has 60 states and 63 transitions. [2023-11-06 22:46:23,919 INFO L428 stractBuchiCegarLoop]: Abstraction has 60 states and 63 transitions. [2023-11-06 22:46:23,919 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-11-06 22:46:23,919 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 60 states and 63 transitions. [2023-11-06 22:46:23,920 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2023-11-06 22:46:23,920 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:46:23,920 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:46:23,920 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-11-06 22:46:23,920 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2023-11-06 22:46:23,921 INFO L748 eck$LassoCheckResult]: Stem: 751#$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(9, 2); 752#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~post3#1, main_#t~post2#1, main_~offset~0#1, main_~length~0#1, main_~nlen~0#1, main_~i~0#1, main_~j~0#1;havoc main_~offset~0#1;havoc main_~length~0#1;havoc main_#t~nondet1#1;main_~nlen~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~i~0#1 := 0; 753#L27-3 assume !!(main_~i~0#1 < main_~nlen~0#1);main_~j~0#1 := 0; 755#L28-3 [2023-11-06 22:46:23,921 INFO L750 eck$LassoCheckResult]: Loop: 755#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 740#L18 assume !(0 == __VERIFIER_assert_~cond#1); 741#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 744#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 746#L18-5 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 747#L28-2 main_#t~post3#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 755#L28-3 [2023-11-06 22:46:23,921 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:46:23,921 INFO L85 PathProgramCache]: Analyzing trace with hash 29863, now seen corresponding path program 1 times [2023-11-06 22:46:23,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:46:23,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935907397] [2023-11-06 22:46:23,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:46:23,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:46:23,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:46:23,927 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:46:23,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:46:23,931 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:46:23,932 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:46:23,932 INFO L85 PathProgramCache]: Analyzing trace with hash 1433472511, now seen corresponding path program 1 times [2023-11-06 22:46:23,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:46:23,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488650859] [2023-11-06 22:46:23,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:46:23,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:46:23,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:46:23,943 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:46:23,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:46:23,954 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:46:23,954 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:46:23,954 INFO L85 PathProgramCache]: Analyzing trace with hash -174789083, now seen corresponding path program 1 times [2023-11-06 22:46:23,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:46:23,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107528675] [2023-11-06 22:46:23,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:46:23,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:46:23,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:46:23,960 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:46:23,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:46:23,979 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:46:24,022 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:46:24,022 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:46:24,022 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:46:24,022 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:46:24,022 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-06 22:46:24,022 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:46:24,022 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:46:24,023 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:46:24,023 INFO L133 ssoRankerPreferences]: Filename of dumped script: id_build.i_Iteration5_Loop [2023-11-06 22:46:24,023 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:46:24,023 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:46:24,025 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:46:24,027 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:46:24,033 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:46:24,035 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:46:24,038 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:46:24,076 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:46:24,076 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-06 22:46:24,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:46:24,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:46:24,077 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:46:24,083 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:46:24,083 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:46:24,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-11-06 22:46:24,106 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:46:24,106 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start___VERIFIER_assert_#in~cond#1=0} Honda state: {ULTIMATE.start___VERIFIER_assert_#in~cond#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-06 22:46:24,115 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-11-06 22:46:24,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:46:24,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:46:24,116 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:46:24,127 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:46:24,128 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:46:24,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-11-06 22:46:24,162 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2023-11-06 22:46:24,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:46:24,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:46:24,163 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:46:24,166 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-11-06 22:46:24,171 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-06 22:46:24,171 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:46:24,206 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-06 22:46:24,211 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2023-11-06 22:46:24,212 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:46:24,212 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:46:24,212 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:46:24,212 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:46:24,213 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-06 22:46:24,213 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:46:24,213 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:46:24,213 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:46:24,213 INFO L133 ssoRankerPreferences]: Filename of dumped script: id_build.i_Iteration5_Loop [2023-11-06 22:46:24,213 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:46:24,213 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:46:24,214 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:46:24,219 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:46:24,226 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:46:24,228 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:46:24,234 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:46:24,276 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:46:24,277 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-06 22:46:24,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:46:24,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:46:24,282 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:46:24,291 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 [2023-11-06 22:46:24,303 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:46:24,303 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:46:24,304 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:46:24,304 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:46:24,304 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:46:24,305 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:46:24,305 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:46:24,306 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-11-06 22:46:24,310 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:46:24,318 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2023-11-06 22:46:24,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:46:24,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:46:24,320 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:46:24,333 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 [2023-11-06 22:46:24,345 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:46:24,345 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:46:24,346 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:46:24,346 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:46:24,346 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:46:24,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-11-06 22:46:24,347 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:46:24,347 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:46:24,357 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-06 22:46:24,360 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-06 22:46:24,360 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-06 22:46:24,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:46:24,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:46:24,378 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:46:24,384 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-06 22:46:24,385 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-06 22:46:24,385 INFO L513 LassoAnalysis]: Proved termination. [2023-11-06 22:46:24,385 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1) = -2*ULTIMATE.start_main_~j~0#1 + 15 Supporting invariants [] [2023-11-06 22:46:24,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2023-11-06 22:46:24,395 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2023-11-06 22:46:24,396 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-06 22:46:24,412 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:46:24,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:24,421 INFO L262 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:46:24,424 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:46:24,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:24,439 INFO L262 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:46:24,440 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:46:24,480 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 22:46:24,481 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 [2023-11-06 22:46:24,481 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 60 states and 63 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:46:24,519 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 60 states and 63 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 165 states and 172 transitions. Complement of second has 7 states. [2023-11-06 22:46:24,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-06 22:46:24,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:46:24,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2023-11-06 22:46:24,523 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 3 letters. Loop has 6 letters. [2023-11-06 22:46:24,523 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:46:24,523 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 9 letters. Loop has 6 letters. [2023-11-06 22:46:24,523 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:46:24,524 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 3 letters. Loop has 12 letters. [2023-11-06 22:46:24,524 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:46:24,524 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 165 states and 172 transitions. [2023-11-06 22:46:24,531 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2023-11-06 22:46:24,535 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 165 states to 111 states and 115 transitions. [2023-11-06 22:46:24,536 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2023-11-06 22:46:24,536 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2023-11-06 22:46:24,536 INFO L73 IsDeterministic]: Start isDeterministic. Operand 111 states and 115 transitions. [2023-11-06 22:46:24,536 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-06 22:46:24,536 INFO L218 hiAutomatonCegarLoop]: Abstraction has 111 states and 115 transitions. [2023-11-06 22:46:24,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states and 115 transitions. [2023-11-06 22:46:24,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 60. [2023-11-06 22:46:24,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 60 states have (on average 1.0333333333333334) internal successors, (62), 59 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:46:24,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 62 transitions. [2023-11-06 22:46:24,549 INFO L240 hiAutomatonCegarLoop]: Abstraction has 60 states and 62 transitions. [2023-11-06 22:46:24,550 INFO L428 stractBuchiCegarLoop]: Abstraction has 60 states and 62 transitions. [2023-11-06 22:46:24,550 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2023-11-06 22:46:24,550 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 60 states and 62 transitions. [2023-11-06 22:46:24,550 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2023-11-06 22:46:24,550 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:46:24,551 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:46:24,553 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [8, 8, 8, 8, 8, 8, 2, 1, 1, 1, 1] [2023-11-06 22:46:24,553 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2023-11-06 22:46:24,553 INFO L748 eck$LassoCheckResult]: Stem: 1026#$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(9, 2); 1027#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~post3#1, main_#t~post2#1, main_~offset~0#1, main_~length~0#1, main_~nlen~0#1, main_~i~0#1, main_~j~0#1;havoc main_~offset~0#1;havoc main_~length~0#1;havoc main_#t~nondet1#1;main_~nlen~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~i~0#1 := 0; 1028#L27-3 assume !!(main_~i~0#1 < main_~nlen~0#1);main_~j~0#1 := 0; 1029#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1074#L18 assume !(0 == __VERIFIER_assert_~cond#1); 1020#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1021#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 1024#L18-5 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 1025#L28-2 main_#t~post3#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 1032#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1017#L18 assume !(0 == __VERIFIER_assert_~cond#1); 1018#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1073#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 1072#L18-5 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 1071#L28-2 main_#t~post3#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 1070#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1069#L18 assume !(0 == __VERIFIER_assert_~cond#1); 1068#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1067#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 1066#L18-5 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 1065#L28-2 main_#t~post3#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 1064#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1063#L18 assume !(0 == __VERIFIER_assert_~cond#1); 1062#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1061#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 1060#L18-5 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 1059#L28-2 main_#t~post3#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 1058#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1057#L18 assume !(0 == __VERIFIER_assert_~cond#1); 1056#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1055#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 1054#L18-5 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 1053#L28-2 main_#t~post3#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 1052#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1051#L18 assume !(0 == __VERIFIER_assert_~cond#1); 1050#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1049#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 1048#L18-5 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 1047#L28-2 main_#t~post3#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 1046#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1045#L18 assume !(0 == __VERIFIER_assert_~cond#1); 1044#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1043#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 1042#L18-5 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 1041#L28-2 main_#t~post3#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 1040#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1035#L18 assume !(0 == __VERIFIER_assert_~cond#1); 1039#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1038#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 1037#L18-5 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 1036#L28-2 main_#t~post3#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 1034#L28-3 assume !(main_~j~0#1 < 8); 1033#L27-2 main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 1030#L27-3 assume !!(main_~i~0#1 < main_~nlen~0#1);main_~j~0#1 := 0; 1031#L28-3 [2023-11-06 22:46:24,553 INFO L750 eck$LassoCheckResult]: Loop: 1031#L28-3 assume !!(main_~j~0#1 < 8);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~nlen~0#1 - 1 - main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1015#L18 assume !(0 == __VERIFIER_assert_~cond#1); 1016#L18-2 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~nlen~0#1 - 1 - main_~i~0#1 < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1019#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 1022#L18-5 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 1023#L28-2 main_#t~post3#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 1031#L28-3 [2023-11-06 22:46:24,554 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:46:24,554 INFO L85 PathProgramCache]: Analyzing trace with hash -201335511, now seen corresponding path program 2 times [2023-11-06 22:46:24,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:46:24,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078359347] [2023-11-06 22:46:24,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:46:24,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:46:24,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:46:24,586 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:46:24,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:46:24,627 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:46:24,631 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:46:24,632 INFO L85 PathProgramCache]: Analyzing trace with hash 1433472511, now seen corresponding path program 2 times [2023-11-06 22:46:24,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:46:24,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129454317] [2023-11-06 22:46:24,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:46:24,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:46:24,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:46:24,667 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:46:24,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:46:24,673 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:46:24,674 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:46:24,674 INFO L85 PathProgramCache]: Analyzing trace with hash 324037927, now seen corresponding path program 3 times [2023-11-06 22:46:24,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:46:24,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441389067] [2023-11-06 22:46:24,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:46:24,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:46:24,680 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2023-11-06 22:46:24,705 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2023-11-06 22:46:24,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:46:24,724 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:46:24,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:46:24,758 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:46:24,801 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:46:24,802 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:46:24,802 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:46:24,802 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:46:24,802 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-06 22:46:24,806 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:46:24,806 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:46:24,806 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:46:24,806 INFO L133 ssoRankerPreferences]: Filename of dumped script: id_build.i_Iteration6_Loop [2023-11-06 22:46:24,806 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:46:24,806 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:46:24,809 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:46:24,811 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:46:24,816 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:46:24,818 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:46:24,826 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:46:24,872 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:46:24,872 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-06 22:46:24,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:46:24,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:46:24,874 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:46:24,883 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:46:24,883 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:46:24,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-11-06 22:46:24,906 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:46:24,906 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post3#1=0} Honda state: {ULTIMATE.start_main_#t~post3#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-06 22:46:24,915 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2023-11-06 22:46:24,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:46:24,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:46:24,917 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:46:24,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-11-06 22:46:24,931 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:46:24,931 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:46:24,958 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:46:24,958 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start___VERIFIER_assert_#in~cond#1=0} Honda state: {ULTIMATE.start___VERIFIER_assert_#in~cond#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-06 22:46:24,965 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2023-11-06 22:46:24,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:46:24,965 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:46:24,966 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:46:24,975 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:46:24,975 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:46:24,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2023-11-06 22:46:24,997 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:46:24,997 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start___VERIFIER_assert_~cond#1=0} Honda state: {ULTIMATE.start___VERIFIER_assert_~cond#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-06 22:46:25,005 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2023-11-06 22:46:25,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:46:25,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:46:25,007 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:46:25,013 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2023-11-06 22:46:25,013 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:46:25,013 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:46:25,035 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:46:25,035 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~nlen~0#1=1, ULTIMATE.start_main_~i~0#1=0} Honda state: {ULTIMATE.start_main_~nlen~0#1=1, ULTIMATE.start_main_~i~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-06 22:46:25,045 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2023-11-06 22:46:25,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:46:25,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:46:25,047 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:46:25,066 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:46:25,066 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:46:25,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2023-11-06 22:46:25,114 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2023-11-06 22:46:25,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:46:25,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:46:25,116 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:46:25,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2023-11-06 22:46:25,127 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-06 22:46:25,127 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:46:25,166 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-06 22:46:25,171 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2023-11-06 22:46:25,171 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:46:25,172 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:46:25,172 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:46:25,172 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:46:25,172 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-06 22:46:25,172 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:46:25,172 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:46:25,172 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:46:25,172 INFO L133 ssoRankerPreferences]: Filename of dumped script: id_build.i_Iteration6_Loop [2023-11-06 22:46:25,172 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:46:25,172 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:46:25,173 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:46:25,178 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:46:25,181 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:46:25,189 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:46:25,192 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:46:25,235 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:46:25,235 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-06 22:46:25,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:46:25,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:46:25,237 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:46:25,244 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 [2023-11-06 22:46:25,257 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2023-11-06 22:46:25,258 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:46:25,258 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:46:25,258 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:46:25,258 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:46:25,258 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:46:25,260 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:46:25,260 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:46:25,277 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:46:25,287 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2023-11-06 22:46:25,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:46:25,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:46:25,288 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:46:25,293 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 [2023-11-06 22:46:25,306 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2023-11-06 22:46:25,306 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:46:25,307 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:46:25,307 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:46:25,307 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:46:25,307 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:46:25,308 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:46:25,308 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:46:25,329 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:46:25,338 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2023-11-06 22:46:25,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:46:25,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:46:25,339 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:46:25,343 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 [2023-11-06 22:46:25,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2023-11-06 22:46:25,357 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:46:25,357 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:46:25,357 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:46:25,357 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:46:25,357 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:46:25,358 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:46:25,359 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:46:25,369 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:46:25,377 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2023-11-06 22:46:25,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:46:25,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:46:25,378 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:46:25,382 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2023-11-06 22:46:25,384 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 [2023-11-06 22:46:25,399 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:46:25,399 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:46:25,400 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:46:25,400 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:46:25,400 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:46:25,403 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:46:25,403 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:46:25,425 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:46:25,436 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2023-11-06 22:46:25,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:46:25,436 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:46:25,438 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:46:25,442 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 [2023-11-06 22:46:25,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2023-11-06 22:46:25,459 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:46:25,459 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:46:25,459 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:46:25,459 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:46:25,459 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:46:25,461 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:46:25,461 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:46:25,470 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-06 22:46:25,474 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-06 22:46:25,474 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-06 22:46:25,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:46:25,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:46:25,478 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:46:25,482 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-06 22:46:25,482 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-06 22:46:25,482 INFO L513 LassoAnalysis]: Proved termination. [2023-11-06 22:46:25,483 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1) = -2*ULTIMATE.start_main_~j~0#1 + 15 Supporting invariants [] [2023-11-06 22:46:25,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2023-11-06 22:46:25,494 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2023-11-06 22:46:25,495 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-06 22:46:25,511 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:46:25,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:25,550 INFO L262 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:46:25,557 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:46:25,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:25,658 INFO L262 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:46:25,658 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:46:25,693 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 22:46:25,694 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 [2023-11-06 22:46:25,694 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 60 states and 62 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:46:25,730 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 60 states and 62 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 153 states and 158 transitions. Complement of second has 7 states. [2023-11-06 22:46:25,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-06 22:46:25,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:46:25,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2023-11-06 22:46:25,733 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 54 letters. Loop has 6 letters. [2023-11-06 22:46:25,733 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:46:25,733 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-06 22:46:25,747 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:46:25,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:25,778 INFO L262 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:46:25,780 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:46:25,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:25,865 INFO L262 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:46:25,866 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:46:25,897 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 22:46:25,897 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2023-11-06 22:46:25,898 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 60 states and 62 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:46:25,917 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 60 states and 62 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 153 states and 158 transitions. Complement of second has 7 states. [2023-11-06 22:46:25,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-06 22:46:25,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:46:25,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2023-11-06 22:46:25,918 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 54 letters. Loop has 6 letters. [2023-11-06 22:46:25,919 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:46:25,919 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-06 22:46:25,931 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:46:25,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:25,963 INFO L262 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:46:25,965 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:46:26,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:26,040 INFO L262 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:46:26,040 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:46:26,083 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 22:46:26,083 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-11-06 22:46:26,084 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 60 states and 62 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:46:26,108 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 60 states and 62 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 108 states and 112 transitions. Complement of second has 6 states. [2023-11-06 22:46:26,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-06 22:46:26,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:46:26,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 20 transitions. [2023-11-06 22:46:26,109 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 54 letters. Loop has 6 letters. [2023-11-06 22:46:26,110 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:46:26,110 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 60 letters. Loop has 6 letters. [2023-11-06 22:46:26,110 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:46:26,110 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 54 letters. Loop has 12 letters. [2023-11-06 22:46:26,111 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:46:26,111 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 108 states and 112 transitions. [2023-11-06 22:46:26,112 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-06 22:46:26,113 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 108 states to 0 states and 0 transitions. [2023-11-06 22:46:26,113 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-06 22:46:26,113 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-06 22:46:26,113 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-06 22:46:26,113 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:46:26,113 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-06 22:46:26,113 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-06 22:46:26,114 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-06 22:46:26,114 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2023-11-06 22:46:26,114 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-11-06 22:46:26,114 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-06 22:46:26,114 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-11-06 22:46:26,122 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.11 10:46:26 BoogieIcfgContainer [2023-11-06 22:46:26,122 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-06 22:46:26,122 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:46:26,122 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:46:26,123 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:46:26,123 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:46:20" (3/4) ... [2023-11-06 22:46:26,125 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-06 22:46:26,126 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:46:26,127 INFO L158 Benchmark]: Toolchain (without parser) took 6971.59ms. Allocated memory was 132.1MB in the beginning and 186.6MB in the end (delta: 54.5MB). Free memory was 90.4MB in the beginning and 76.5MB in the end (delta: 14.0MB). Peak memory consumption was 69.8MB. Max. memory is 16.1GB. [2023-11-06 22:46:26,127 INFO L158 Benchmark]: CDTParser took 0.77ms. Allocated memory is still 132.1MB. Free memory is still 110.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:46:26,127 INFO L158 Benchmark]: CACSL2BoogieTranslator took 333.93ms. Allocated memory is still 132.1MB. Free memory was 90.2MB in the beginning and 79.9MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-06 22:46:26,128 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.73ms. Allocated memory is still 132.1MB. Free memory was 79.9MB in the beginning and 78.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:46:26,128 INFO L158 Benchmark]: Boogie Preprocessor took 62.12ms. Allocated memory is still 132.1MB. Free memory was 78.4MB in the beginning and 77.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:46:26,128 INFO L158 Benchmark]: RCFGBuilder took 433.21ms. Allocated memory is still 132.1MB. Free memory was 77.3MB in the beginning and 103.1MB in the end (delta: -25.8MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB. [2023-11-06 22:46:26,129 INFO L158 Benchmark]: BuchiAutomizer took 6085.39ms. Allocated memory was 132.1MB in the beginning and 186.6MB in the end (delta: 54.5MB). Free memory was 102.6MB in the beginning and 76.5MB in the end (delta: 26.1MB). Peak memory consumption was 82.1MB. Max. memory is 16.1GB. [2023-11-06 22:46:26,129 INFO L158 Benchmark]: Witness Printer took 3.83ms. Allocated memory is still 186.6MB. Free memory is still 76.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:46:26,131 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.77ms. Allocated memory is still 132.1MB. Free memory is still 110.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 333.93ms. Allocated memory is still 132.1MB. Free memory was 90.2MB in the beginning and 79.9MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.73ms. Allocated memory is still 132.1MB. Free memory was 79.9MB in the beginning and 78.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 62.12ms. Allocated memory is still 132.1MB. Free memory was 78.4MB in the beginning and 77.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 433.21ms. Allocated memory is still 132.1MB. Free memory was 77.3MB in the beginning and 103.1MB in the end (delta: -25.8MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB. * BuchiAutomizer took 6085.39ms. Allocated memory was 132.1MB in the beginning and 186.6MB in the end (delta: 54.5MB). Free memory was 102.6MB in the beginning and 76.5MB in the end (delta: 26.1MB). Peak memory consumption was 82.1MB. Max. memory is 16.1GB. * Witness Printer took 3.83ms. Allocated memory is still 186.6MB. Free memory is still 76.5MB. 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 6 terminating modules (3 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function ((-1 * i) + nlen) and consists of 3 locations. One deterministic module has affine ranking function ((-2 * j) + 15) and consists of 4 locations. One nondeterministic module has affine ranking function ((-2 * j) + 15) and consists of 4 locations. 3 modules have a trivial ranking function, the largest among these consists of 10 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.9s and 7 iterations. TraceHistogramMax:8. Analysis of lassos took 4.3s. Construction of modules took 0.1s. Büchi inclusion checks took 1.3s. Highest rank in rank-based complementation 3. Minimization of det autom 4. Minimization of nondet autom 2. Automata minimization 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 99 StatesRemovedByMinimization, 3 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 [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 176/176 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 133 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 128 mSDsluCounter, 173 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 87 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 81 IncrementalHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 86 mSDtfsCounter, 81 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI3 SFLT3 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax100 hnf100 lsp64 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq153 hnf94 smp100 dnf100 smp100 tf112 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 55ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 7 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.5s 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 22:46:26,150 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2023-11-06 22:46:26,348 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-06 22:46:26,547 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-06 22:46:26,748 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2018b4e-258a-431e-9f79-1f6b26230481/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE