./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/Log.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab3628a-b5be-4a93-9660-883d64e970c2/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab3628a-b5be-4a93-9660-883d64e970c2/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab3628a-b5be-4a93-9660-883d64e970c2/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab3628a-b5be-4a93-9660-883d64e970c2/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/Log.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab3628a-b5be-4a93-9660-883d64e970c2/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab3628a-b5be-4a93-9660-883d64e970c2/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 08d23a4fccc00925380f274033d6bce2f9ea0cd5a54ce734e93b963eb060b109 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 00:28:19,001 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 00:28:19,082 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab3628a-b5be-4a93-9660-883d64e970c2/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-11-29 00:28:19,086 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 00:28:19,087 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 00:28:19,125 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 00:28:19,126 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 00:28:19,126 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 00:28:19,127 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 00:28:19,127 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 00:28:19,128 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 00:28:19,129 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 00:28:19,129 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 00:28:19,130 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-29 00:28:19,131 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-29 00:28:19,131 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-29 00:28:19,132 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-29 00:28:19,132 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-29 00:28:19,133 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-29 00:28:19,133 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 00:28:19,134 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-29 00:28:19,135 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 00:28:19,135 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 00:28:19,136 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-29 00:28:19,136 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-29 00:28:19,137 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-29 00:28:19,137 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 00:28:19,137 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 00:28:19,138 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-29 00:28:19,138 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 00:28:19,139 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 00:28:19,139 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 00:28:19,140 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 00:28:19,140 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 00:28:19,141 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-29 00:28:19,141 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_bab3628a-b5be-4a93-9660-883d64e970c2/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab3628a-b5be-4a93-9660-883d64e970c2/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 08d23a4fccc00925380f274033d6bce2f9ea0cd5a54ce734e93b963eb060b109 [2023-11-29 00:28:19,384 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 00:28:19,405 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 00:28:19,408 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 00:28:19,409 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 00:28:19,409 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 00:28:19,411 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab3628a-b5be-4a93-9660-883d64e970c2/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/termination-restricted-15/Log.c [2023-11-29 00:28:22,116 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 00:28:22,297 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 00:28:22,298 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab3628a-b5be-4a93-9660-883d64e970c2/sv-benchmarks/c/termination-restricted-15/Log.c [2023-11-29 00:28:22,303 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab3628a-b5be-4a93-9660-883d64e970c2/bin/uautomizer-verify-BQ2R08f2Ya/data/c18bbeb72/80c9bfac3b8c45bfb79049a6808710d4/FLAG373ada754 [2023-11-29 00:28:22,315 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab3628a-b5be-4a93-9660-883d64e970c2/bin/uautomizer-verify-BQ2R08f2Ya/data/c18bbeb72/80c9bfac3b8c45bfb79049a6808710d4 [2023-11-29 00:28:22,317 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 00:28:22,318 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 00:28:22,319 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 00:28:22,319 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 00:28:22,324 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 00:28:22,325 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:28:22" (1/1) ... [2023-11-29 00:28:22,326 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bf60a04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:28:22, skipping insertion in model container [2023-11-29 00:28:22,326 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:28:22" (1/1) ... [2023-11-29 00:28:22,344 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 00:28:22,470 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 00:28:22,477 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 00:28:22,489 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 00:28:22,499 INFO L206 MainTranslator]: Completed translation [2023-11-29 00:28:22,500 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:28:22 WrapperNode [2023-11-29 00:28:22,500 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 00:28:22,501 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 00:28:22,501 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 00:28:22,501 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 00:28:22,509 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:28:22" (1/1) ... [2023-11-29 00:28:22,514 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:28:22" (1/1) ... [2023-11-29 00:28:22,531 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 26 [2023-11-29 00:28:22,532 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 00:28:22,533 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 00:28:22,533 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 00:28:22,533 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 00:28:22,546 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:28:22" (1/1) ... [2023-11-29 00:28:22,546 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:28:22" (1/1) ... [2023-11-29 00:28:22,547 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:28:22" (1/1) ... [2023-11-29 00:28:22,553 INFO L175 MemorySlicer]: No memory access in input program. [2023-11-29 00:28:22,553 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:28:22" (1/1) ... [2023-11-29 00:28:22,553 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:28:22" (1/1) ... [2023-11-29 00:28:22,555 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:28:22" (1/1) ... [2023-11-29 00:28:22,559 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:28:22" (1/1) ... [2023-11-29 00:28:22,560 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:28:22" (1/1) ... [2023-11-29 00:28:22,561 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:28:22" (1/1) ... [2023-11-29 00:28:22,561 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 00:28:22,562 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 00:28:22,562 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 00:28:22,563 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 00:28:22,564 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:28:22" (1/1) ... [2023-11-29 00:28:22,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 00:28:22,578 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab3628a-b5be-4a93-9660-883d64e970c2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:28:22,590 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab3628a-b5be-4a93-9660-883d64e970c2/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 00:28:22,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab3628a-b5be-4a93-9660-883d64e970c2/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-29 00:28:22,626 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 00:28:22,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 00:28:22,716 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 00:28:22,718 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 00:28:22,777 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 00:28:22,786 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 00:28:22,786 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-29 00:28:22,787 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:28:22 BoogieIcfgContainer [2023-11-29 00:28:22,788 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 00:28:22,789 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-29 00:28:22,789 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-29 00:28:22,792 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-29 00:28:22,793 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-29 00:28:22,793 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 12:28:22" (1/3) ... [2023-11-29 00:28:22,794 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@16911e96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 12:28:22, skipping insertion in model container [2023-11-29 00:28:22,794 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-29 00:28:22,794 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:28:22" (2/3) ... [2023-11-29 00:28:22,794 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@16911e96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 12:28:22, skipping insertion in model container [2023-11-29 00:28:22,794 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-29 00:28:22,795 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:28:22" (3/3) ... [2023-11-29 00:28:22,796 INFO L332 chiAutomizerObserver]: Analyzing ICFG Log.c [2023-11-29 00:28:22,851 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-29 00:28:22,851 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-29 00:28:22,852 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-29 00:28:22,852 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-29 00:28:22,852 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-29 00:28:22,852 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-29 00:28:22,852 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-29 00:28:22,852 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-29 00:28:22,857 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 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) [2023-11-29 00:28:22,876 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-11-29 00:28:22,876 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 00:28:22,876 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 00:28:22,882 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-29 00:28:22,882 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-29 00:28:22,882 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-29 00:28:22,883 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 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) [2023-11-29 00:28:22,884 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-11-29 00:28:22,884 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 00:28:22,884 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 00:28:22,885 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-29 00:28:22,885 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-29 00:28:22,893 INFO L748 eck$LassoCheckResult]: Stem: 6#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~x~0#1, main_~xtmp~0#1, main_~res~0#1, main_~restmp~0#1;havoc main_~x~0#1;havoc main_~xtmp~0#1;havoc main_~res~0#1;havoc main_~restmp~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~res~0#1 := 0; 5#L13-2true [2023-11-29 00:28:22,894 INFO L750 eck$LassoCheckResult]: Loop: 5#L13-2true assume !!(main_~x~0#1 > 1);main_~xtmp~0#1 := main_~x~0#1;main_~restmp~0#1 := 0; 3#L17-2true assume !(main_~xtmp~0#1 > 1); 9#L17-3true main_~x~0#1 := main_~xtmp~0#1;main_~res~0#1 := 1 + main_~res~0#1; 5#L13-2true [2023-11-29 00:28:22,900 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:28:22,901 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-11-29 00:28:22,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:28:22,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232110027] [2023-11-29 00:28:22,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:28:22,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:28:22,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 00:28:22,990 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 00:28:22,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 00:28:23,008 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 00:28:23,011 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:28:23,011 INFO L85 PathProgramCache]: Analyzing trace with hash 40944, now seen corresponding path program 1 times [2023-11-29 00:28:23,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:28:23,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586284534] [2023-11-29 00:28:23,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:28:23,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:28:23,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:28:23,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:28:23,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:28:23,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586284534] [2023-11-29 00:28:23,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586284534] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:28:23,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:28:23,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 00:28:23,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014794671] [2023-11-29 00:28:23,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:28:23,128 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-29 00:28:23,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:28:23,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 00:28:23,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:28:23,166 INFO L87 Difference]: Start difference. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 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) 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) [2023-11-29 00:28:23,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:28:23,185 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2023-11-29 00:28:23,186 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 11 transitions. [2023-11-29 00:28:23,187 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-29 00:28:23,190 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 6 states and 7 transitions. [2023-11-29 00:28:23,191 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2023-11-29 00:28:23,192 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2023-11-29 00:28:23,192 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 7 transitions. [2023-11-29 00:28:23,192 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:28:23,193 INFO L218 hiAutomatonCegarLoop]: Abstraction has 6 states and 7 transitions. [2023-11-29 00:28:23,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states and 7 transitions. [2023-11-29 00:28:23,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2023-11-29 00:28:23,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:28:23,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 7 transitions. [2023-11-29 00:28:23,214 INFO L240 hiAutomatonCegarLoop]: Abstraction has 6 states and 7 transitions. [2023-11-29 00:28:23,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 00:28:23,220 INFO L428 stractBuchiCegarLoop]: Abstraction has 6 states and 7 transitions. [2023-11-29 00:28:23,220 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-29 00:28:23,220 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 7 transitions. [2023-11-29 00:28:23,221 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-29 00:28:23,221 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 00:28:23,221 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 00:28:23,221 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-29 00:28:23,222 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-29 00:28:23,222 INFO L748 eck$LassoCheckResult]: Stem: 31#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 32#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~x~0#1, main_~xtmp~0#1, main_~res~0#1, main_~restmp~0#1;havoc main_~x~0#1;havoc main_~xtmp~0#1;havoc main_~res~0#1;havoc main_~restmp~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~res~0#1 := 0; 30#L13-2 [2023-11-29 00:28:23,222 INFO L750 eck$LassoCheckResult]: Loop: 30#L13-2 assume !!(main_~x~0#1 > 1);main_~xtmp~0#1 := main_~x~0#1;main_~restmp~0#1 := 0; 28#L17-2 assume !!(main_~xtmp~0#1 > 1);main_~xtmp~0#1 := main_~xtmp~0#1 - 2;main_~restmp~0#1 := 1 + main_~restmp~0#1; 29#L17-2 assume !(main_~xtmp~0#1 > 1); 33#L17-3 main_~x~0#1 := main_~xtmp~0#1;main_~res~0#1 := 1 + main_~res~0#1; 30#L13-2 [2023-11-29 00:28:23,223 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:28:23,223 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2023-11-29 00:28:23,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:28:23,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607011422] [2023-11-29 00:28:23,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:28:23,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:28:23,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 00:28:23,230 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 00:28:23,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 00:28:23,234 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 00:28:23,235 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:28:23,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1271024, now seen corresponding path program 1 times [2023-11-29 00:28:23,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:28:23,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985470705] [2023-11-29 00:28:23,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:28:23,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:28:23,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 00:28:23,248 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 00:28:23,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 00:28:23,257 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 00:28:23,258 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:28:23,258 INFO L85 PathProgramCache]: Analyzing trace with hash 889698226, now seen corresponding path program 1 times [2023-11-29 00:28:23,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:28:23,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18346747] [2023-11-29 00:28:23,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:28:23,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:28:23,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 00:28:23,270 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 00:28:23,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 00:28:23,280 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 00:28:23,424 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 00:28:23,424 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 00:28:23,424 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 00:28:23,425 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 00:28:23,425 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-29 00:28:23,425 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 00:28:23,425 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 00:28:23,425 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 00:28:23,425 INFO L133 ssoRankerPreferences]: Filename of dumped script: Log.c_Iteration2_Loop [2023-11-29 00:28:23,425 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 00:28:23,426 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 00:28:23,444 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 00:28:23,464 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 00:28:23,468 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 00:28:23,471 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 00:28:23,475 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 00:28:23,569 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 00:28:23,570 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-29 00:28:23,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 00:28:23,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab3628a-b5be-4a93-9660-883d64e970c2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:28:23,576 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab3628a-b5be-4a93-9660-883d64e970c2/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 00:28:23,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab3628a-b5be-4a93-9660-883d64e970c2/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-29 00:28:23,578 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 00:28:23,578 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 00:28:23,608 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab3628a-b5be-4a93-9660-883d64e970c2/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-11-29 00:28:23,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 00:28:23,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab3628a-b5be-4a93-9660-883d64e970c2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:28:23,611 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab3628a-b5be-4a93-9660-883d64e970c2/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 00:28:23,617 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab3628a-b5be-4a93-9660-883d64e970c2/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-29 00:28:23,618 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-29 00:28:23,618 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 00:28:23,745 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-29 00:28:23,749 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab3628a-b5be-4a93-9660-883d64e970c2/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2023-11-29 00:28:23,749 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 00:28:23,750 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 00:28:23,750 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 00:28:23,750 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 00:28:23,750 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-29 00:28:23,750 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 00:28:23,750 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 00:28:23,750 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 00:28:23,750 INFO L133 ssoRankerPreferences]: Filename of dumped script: Log.c_Iteration2_Loop [2023-11-29 00:28:23,750 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 00:28:23,750 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 00:28:23,752 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 00:28:23,757 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 00:28:23,761 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 00:28:23,770 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 00:28:23,774 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 00:28:23,839 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 00:28:23,843 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-29 00:28:23,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 00:28:23,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab3628a-b5be-4a93-9660-883d64e970c2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:28:23,845 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab3628a-b5be-4a93-9660-883d64e970c2/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 00:28:23,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab3628a-b5be-4a93-9660-883d64e970c2/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-29 00:28:23,850 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 [2023-11-29 00:28:23,860 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 00:28:23,860 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 00:28:23,861 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 00:28:23,861 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 00:28:23,861 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 00:28:23,863 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 00:28:23,863 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 00:28:23,865 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 00:28:23,869 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab3628a-b5be-4a93-9660-883d64e970c2/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2023-11-29 00:28:23,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 00:28:23,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab3628a-b5be-4a93-9660-883d64e970c2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:28:23,870 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab3628a-b5be-4a93-9660-883d64e970c2/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 00:28:23,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab3628a-b5be-4a93-9660-883d64e970c2/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-29 00:28:23,872 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 [2023-11-29 00:28:23,883 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 00:28:23,883 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 00:28:23,883 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 00:28:23,883 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 00:28:23,883 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 00:28:23,884 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 00:28:23,884 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 00:28:23,886 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 00:28:23,890 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab3628a-b5be-4a93-9660-883d64e970c2/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2023-11-29 00:28:23,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 00:28:23,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab3628a-b5be-4a93-9660-883d64e970c2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:28:23,891 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab3628a-b5be-4a93-9660-883d64e970c2/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 00:28:23,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab3628a-b5be-4a93-9660-883d64e970c2/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-29 00:28:23,894 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 [2023-11-29 00:28:23,905 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 00:28:23,905 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 00:28:23,905 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 00:28:23,905 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 00:28:23,905 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 00:28:23,907 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 00:28:23,907 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 00:28:23,911 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-29 00:28:23,920 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-29 00:28:23,920 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-29 00:28:23,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 00:28:23,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab3628a-b5be-4a93-9660-883d64e970c2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:28:23,953 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab3628a-b5be-4a93-9660-883d64e970c2/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 00:28:23,956 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab3628a-b5be-4a93-9660-883d64e970c2/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-29 00:28:23,957 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-29 00:28:23,957 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-29 00:28:23,957 INFO L513 LassoAnalysis]: Proved termination. [2023-11-29 00:28:23,958 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2023-11-29 00:28:23,961 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab3628a-b5be-4a93-9660-883d64e970c2/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-11-29 00:28:23,965 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-29 00:28:23,984 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:28:23,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:28:23,993 INFO L262 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 00:28:23,994 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:28:24,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:28:24,008 INFO L262 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 00:28:24,009 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:28:24,050 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 00:28:24,054 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2023-11-29 00:28:24,056 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 7 transitions. cyclomatic complexity: 2 Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:28:24,109 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 7 transitions. cyclomatic complexity: 2. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 10 states and 13 transitions. Complement of second has 6 states. [2023-11-29 00:28:24,110 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 [2023-11-29 00:28:24,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:28:24,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6 transitions. [2023-11-29 00:28:24,113 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 2 letters. Loop has 4 letters. [2023-11-29 00:28:24,113 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 00:28:24,113 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 6 letters. Loop has 4 letters. [2023-11-29 00:28:24,113 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 00:28:24,113 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 2 letters. Loop has 8 letters. [2023-11-29 00:28:24,114 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 00:28:24,114 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 13 transitions. [2023-11-29 00:28:24,115 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-11-29 00:28:24,115 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 9 states and 12 transitions. [2023-11-29 00:28:24,115 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2023-11-29 00:28:24,116 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2023-11-29 00:28:24,116 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 12 transitions. [2023-11-29 00:28:24,116 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-29 00:28:24,116 INFO L218 hiAutomatonCegarLoop]: Abstraction has 9 states and 12 transitions. [2023-11-29 00:28:24,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 12 transitions. [2023-11-29 00:28:24,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2023-11-29 00:28:24,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 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) [2023-11-29 00:28:24,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2023-11-29 00:28:24,118 INFO L240 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2023-11-29 00:28:24,118 INFO L428 stractBuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2023-11-29 00:28:24,118 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-29 00:28:24,118 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 11 transitions. [2023-11-29 00:28:24,118 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-11-29 00:28:24,119 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 00:28:24,119 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 00:28:24,119 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-11-29 00:28:24,119 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-11-29 00:28:24,119 INFO L748 eck$LassoCheckResult]: Stem: 92#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 93#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~x~0#1, main_~xtmp~0#1, main_~res~0#1, main_~restmp~0#1;havoc main_~x~0#1;havoc main_~xtmp~0#1;havoc main_~res~0#1;havoc main_~restmp~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~res~0#1 := 0; 90#L13-2 assume !!(main_~x~0#1 > 1);main_~xtmp~0#1 := main_~x~0#1;main_~restmp~0#1 := 0; 87#L17-2 [2023-11-29 00:28:24,119 INFO L750 eck$LassoCheckResult]: Loop: 87#L17-2 assume !!(main_~xtmp~0#1 > 1);main_~xtmp~0#1 := main_~xtmp~0#1 - 2;main_~restmp~0#1 := 1 + main_~restmp~0#1; 87#L17-2 [2023-11-29 00:28:24,120 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:28:24,120 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2023-11-29 00:28:24,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:28:24,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630351503] [2023-11-29 00:28:24,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:28:24,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:28:24,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 00:28:24,126 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 00:28:24,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 00:28:24,130 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 00:28:24,130 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:28:24,130 INFO L85 PathProgramCache]: Analyzing trace with hash 51, now seen corresponding path program 1 times [2023-11-29 00:28:24,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:28:24,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938565324] [2023-11-29 00:28:24,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:28:24,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:28:24,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 00:28:24,136 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 00:28:24,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 00:28:24,139 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 00:28:24,140 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:28:24,140 INFO L85 PathProgramCache]: Analyzing trace with hash 925804, now seen corresponding path program 1 times [2023-11-29 00:28:24,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:28:24,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484157912] [2023-11-29 00:28:24,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:28:24,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:28:24,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 00:28:24,147 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 00:28:24,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 00:28:24,152 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 00:28:24,175 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 00:28:24,175 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 00:28:24,175 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 00:28:24,175 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 00:28:24,175 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-29 00:28:24,175 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 00:28:24,175 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 00:28:24,175 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 00:28:24,175 INFO L133 ssoRankerPreferences]: Filename of dumped script: Log.c_Iteration3_Loop [2023-11-29 00:28:24,175 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 00:28:24,176 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 00:28:24,177 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 00:28:24,180 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 00:28:24,187 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 00:28:24,190 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 00:28:24,233 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 00:28:24,233 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-29 00:28:24,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 00:28:24,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab3628a-b5be-4a93-9660-883d64e970c2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:28:24,235 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab3628a-b5be-4a93-9660-883d64e970c2/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 00:28:24,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab3628a-b5be-4a93-9660-883d64e970c2/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-29 00:28:24,245 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 00:28:24,246 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 00:28:24,264 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 00:28:24,264 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-29 00:28:24,267 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab3628a-b5be-4a93-9660-883d64e970c2/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2023-11-29 00:28:24,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 00:28:24,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab3628a-b5be-4a93-9660-883d64e970c2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:28:24,269 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab3628a-b5be-4a93-9660-883d64e970c2/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 00:28:24,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab3628a-b5be-4a93-9660-883d64e970c2/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-11-29 00:28:24,271 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 00:28:24,271 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 00:28:24,285 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab3628a-b5be-4a93-9660-883d64e970c2/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-11-29 00:28:24,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 00:28:24,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab3628a-b5be-4a93-9660-883d64e970c2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:28:24,287 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab3628a-b5be-4a93-9660-883d64e970c2/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 00:28:24,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab3628a-b5be-4a93-9660-883d64e970c2/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-11-29 00:28:24,289 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-29 00:28:24,289 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 00:28:24,311 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-29 00:28:24,315 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab3628a-b5be-4a93-9660-883d64e970c2/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2023-11-29 00:28:24,315 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 00:28:24,315 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 00:28:24,315 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 00:28:24,315 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 00:28:24,315 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-29 00:28:24,315 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 00:28:24,315 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 00:28:24,315 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 00:28:24,315 INFO L133 ssoRankerPreferences]: Filename of dumped script: Log.c_Iteration3_Loop [2023-11-29 00:28:24,316 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 00:28:24,316 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 00:28:24,317 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 00:28:24,323 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 00:28:24,326 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 00:28:24,329 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 00:28:24,376 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 00:28:24,377 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-29 00:28:24,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 00:28:24,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab3628a-b5be-4a93-9660-883d64e970c2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:28:24,379 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab3628a-b5be-4a93-9660-883d64e970c2/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 00:28:24,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab3628a-b5be-4a93-9660-883d64e970c2/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-11-29 00:28:24,381 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 [2023-11-29 00:28:24,394 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 00:28:24,394 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 00:28:24,394 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 00:28:24,394 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 00:28:24,394 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 00:28:24,395 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 00:28:24,396 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 00:28:24,398 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-29 00:28:24,402 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-29 00:28:24,402 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-29 00:28:24,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 00:28:24,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab3628a-b5be-4a93-9660-883d64e970c2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:28:24,404 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab3628a-b5be-4a93-9660-883d64e970c2/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 00:28:24,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab3628a-b5be-4a93-9660-883d64e970c2/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-11-29 00:28:24,414 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-29 00:28:24,414 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-29 00:28:24,414 INFO L513 LassoAnalysis]: Proved termination. [2023-11-29 00:28:24,414 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~xtmp~0#1) = 1*ULTIMATE.start_main_~xtmp~0#1 Supporting invariants [] [2023-11-29 00:28:24,419 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab3628a-b5be-4a93-9660-883d64e970c2/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-11-29 00:28:24,420 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-29 00:28:24,434 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:28:24,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:28:24,442 INFO L262 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 00:28:24,442 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:28:24,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:28:24,453 WARN L260 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 00:28:24,454 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:28:24,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:28:24,454 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-11-29 00:28:24,455 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5 Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:28:24,467 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5. Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 16 states and 21 transitions. Complement of second has 5 states. [2023-11-29 00:28:24,467 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 [2023-11-29 00:28:24,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:28:24,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2023-11-29 00:28:24,468 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 1 letters. [2023-11-29 00:28:24,469 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 00:28:24,469 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 4 letters. Loop has 1 letters. [2023-11-29 00:28:24,469 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 00:28:24,469 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 2 letters. [2023-11-29 00:28:24,469 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 00:28:24,469 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 21 transitions. [2023-11-29 00:28:24,470 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-11-29 00:28:24,471 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 12 states and 16 transitions. [2023-11-29 00:28:24,471 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2023-11-29 00:28:24,471 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2023-11-29 00:28:24,471 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 16 transitions. [2023-11-29 00:28:24,471 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-29 00:28:24,471 INFO L218 hiAutomatonCegarLoop]: Abstraction has 12 states and 16 transitions. [2023-11-29 00:28:24,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 16 transitions. [2023-11-29 00:28:24,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 8. [2023-11-29 00:28:24,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.25) internal successors, (10), 7 states have internal predecessors, (10), 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) [2023-11-29 00:28:24,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 10 transitions. [2023-11-29 00:28:24,473 INFO L240 hiAutomatonCegarLoop]: Abstraction has 8 states and 10 transitions. [2023-11-29 00:28:24,473 INFO L428 stractBuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2023-11-29 00:28:24,473 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-11-29 00:28:24,473 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 10 transitions. [2023-11-29 00:28:24,474 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-11-29 00:28:24,474 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 00:28:24,474 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 00:28:24,474 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1] [2023-11-29 00:28:24,474 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-11-29 00:28:24,475 INFO L748 eck$LassoCheckResult]: Stem: 147#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 148#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~x~0#1, main_~xtmp~0#1, main_~res~0#1, main_~restmp~0#1;havoc main_~x~0#1;havoc main_~xtmp~0#1;havoc main_~res~0#1;havoc main_~restmp~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~res~0#1 := 0; 145#L13-2 assume !!(main_~x~0#1 > 1);main_~xtmp~0#1 := main_~x~0#1;main_~restmp~0#1 := 0; 143#L17-2 assume !!(main_~xtmp~0#1 > 1);main_~xtmp~0#1 := main_~xtmp~0#1 - 2;main_~restmp~0#1 := 1 + main_~restmp~0#1; 144#L17-2 assume !(main_~xtmp~0#1 > 1); 149#L17-3 main_~x~0#1 := main_~xtmp~0#1;main_~res~0#1 := 1 + main_~res~0#1; 146#L13-2 assume !!(main_~x~0#1 > 1);main_~xtmp~0#1 := main_~x~0#1;main_~restmp~0#1 := 0; 142#L17-2 [2023-11-29 00:28:24,475 INFO L750 eck$LassoCheckResult]: Loop: 142#L17-2 assume !!(main_~xtmp~0#1 > 1);main_~xtmp~0#1 := main_~xtmp~0#1 - 2;main_~restmp~0#1 := 1 + main_~restmp~0#1; 142#L17-2 [2023-11-29 00:28:24,475 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:28:24,475 INFO L85 PathProgramCache]: Analyzing trace with hash 1810841241, now seen corresponding path program 2 times [2023-11-29 00:28:24,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:28:24,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502882644] [2023-11-29 00:28:24,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:28:24,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:28:24,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:28:24,513 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 00:28:24,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:28:24,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502882644] [2023-11-29 00:28:24,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502882644] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:28:24,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:28:24,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 00:28:24,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325617419] [2023-11-29 00:28:24,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:28:24,515 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-29 00:28:24,515 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:28:24,515 INFO L85 PathProgramCache]: Analyzing trace with hash 51, now seen corresponding path program 2 times [2023-11-29 00:28:24,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:28:24,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517837150] [2023-11-29 00:28:24,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:28:24,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:28:24,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 00:28:24,520 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 00:28:24,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 00:28:24,523 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 00:28:24,545 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 00:28:24,546 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 00:28:24,546 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 00:28:24,546 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 00:28:24,546 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-29 00:28:24,546 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 00:28:24,546 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 00:28:24,546 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 00:28:24,546 INFO L133 ssoRankerPreferences]: Filename of dumped script: Log.c_Iteration4_Loop [2023-11-29 00:28:24,546 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 00:28:24,546 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 00:28:24,548 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 00:28:24,551 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 00:28:24,554 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 00:28:24,559 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 00:28:24,604 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 00:28:24,604 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-29 00:28:24,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 00:28:24,604 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab3628a-b5be-4a93-9660-883d64e970c2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:28:24,605 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab3628a-b5be-4a93-9660-883d64e970c2/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 00:28:24,609 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab3628a-b5be-4a93-9660-883d64e970c2/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-11-29 00:28:24,613 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 00:28:24,613 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 00:28:24,633 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab3628a-b5be-4a93-9660-883d64e970c2/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2023-11-29 00:28:24,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 00:28:24,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab3628a-b5be-4a93-9660-883d64e970c2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:28:24,635 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab3628a-b5be-4a93-9660-883d64e970c2/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 00:28:24,637 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab3628a-b5be-4a93-9660-883d64e970c2/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-11-29 00:28:24,638 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-29 00:28:24,638 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 00:28:24,675 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 00:28:24,675 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~restmp~0#1=0} Honda state: {ULTIMATE.start_main_~restmp~0#1=0} Generalized eigenvectors: [{ULTIMATE.start_main_~restmp~0#1=2}, {ULTIMATE.start_main_~restmp~0#1=-8}, {ULTIMATE.start_main_~restmp~0#1=7}] Lambdas: [5, 1, 1] Nus: [1, 0] [2023-11-29 00:28:24,679 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab3628a-b5be-4a93-9660-883d64e970c2/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2023-11-29 00:28:24,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 00:28:24,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab3628a-b5be-4a93-9660-883d64e970c2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:28:24,680 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab3628a-b5be-4a93-9660-883d64e970c2/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 00:28:24,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab3628a-b5be-4a93-9660-883d64e970c2/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-11-29 00:28:24,683 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 00:28:24,683 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 00:28:24,702 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 00:28:24,702 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-29 00:28:24,706 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab3628a-b5be-4a93-9660-883d64e970c2/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2023-11-29 00:28:24,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 00:28:24,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab3628a-b5be-4a93-9660-883d64e970c2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:28:24,708 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab3628a-b5be-4a93-9660-883d64e970c2/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 00:28:24,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab3628a-b5be-4a93-9660-883d64e970c2/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2023-11-29 00:28:24,710 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 00:28:24,710 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 00:28:24,726 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab3628a-b5be-4a93-9660-883d64e970c2/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2023-11-29 00:28:24,726 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 00:28:24,726 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab3628a-b5be-4a93-9660-883d64e970c2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:28:24,732 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab3628a-b5be-4a93-9660-883d64e970c2/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 00:28:24,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab3628a-b5be-4a93-9660-883d64e970c2/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-11-29 00:28:24,734 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-29 00:28:24,734 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 00:28:24,759 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-29 00:28:24,763 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab3628a-b5be-4a93-9660-883d64e970c2/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2023-11-29 00:28:24,763 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 00:28:24,763 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 00:28:24,763 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 00:28:24,763 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 00:28:24,763 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-29 00:28:24,764 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 00:28:24,764 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 00:28:24,764 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 00:28:24,764 INFO L133 ssoRankerPreferences]: Filename of dumped script: Log.c_Iteration4_Loop [2023-11-29 00:28:24,764 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 00:28:24,764 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 00:28:24,765 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 00:28:24,770 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 00:28:24,774 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 00:28:24,780 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 00:28:24,824 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 00:28:24,824 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-29 00:28:24,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 00:28:24,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab3628a-b5be-4a93-9660-883d64e970c2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:28:24,826 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab3628a-b5be-4a93-9660-883d64e970c2/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 00:28:24,829 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab3628a-b5be-4a93-9660-883d64e970c2/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-11-29 00:28:24,830 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 [2023-11-29 00:28:24,840 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 00:28:24,840 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 00:28:24,840 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 00:28:24,840 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 00:28:24,840 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 00:28:24,841 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 00:28:24,841 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 00:28:24,843 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 00:28:24,847 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab3628a-b5be-4a93-9660-883d64e970c2/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2023-11-29 00:28:24,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 00:28:24,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab3628a-b5be-4a93-9660-883d64e970c2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:28:24,849 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab3628a-b5be-4a93-9660-883d64e970c2/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 00:28:24,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab3628a-b5be-4a93-9660-883d64e970c2/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2023-11-29 00:28:24,856 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 [2023-11-29 00:28:24,869 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 00:28:24,869 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 00:28:24,869 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 00:28:24,869 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 00:28:24,872 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-29 00:28:24,873 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-29 00:28:24,878 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 00:28:24,884 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab3628a-b5be-4a93-9660-883d64e970c2/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2023-11-29 00:28:24,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 00:28:24,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab3628a-b5be-4a93-9660-883d64e970c2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:28:24,886 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab3628a-b5be-4a93-9660-883d64e970c2/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 00:28:24,906 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 [2023-11-29 00:28:24,912 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab3628a-b5be-4a93-9660-883d64e970c2/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2023-11-29 00:28:24,914 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab3628a-b5be-4a93-9660-883d64e970c2/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2023-11-29 00:28:24,915 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab3628a-b5be-4a93-9660-883d64e970c2/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2023-11-29 00:28:24,921 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 00:28:24,921 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 00:28:24,921 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 00:28:24,921 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 00:28:24,921 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 00:28:24,922 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 00:28:24,922 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 00:28:24,925 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-29 00:28:24,929 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-29 00:28:24,929 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-29 00:28:24,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 00:28:24,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab3628a-b5be-4a93-9660-883d64e970c2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:28:24,930 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab3628a-b5be-4a93-9660-883d64e970c2/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 00:28:24,933 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab3628a-b5be-4a93-9660-883d64e970c2/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2023-11-29 00:28:24,935 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-29 00:28:24,935 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-29 00:28:24,935 INFO L513 LassoAnalysis]: Proved termination. [2023-11-29 00:28:24,935 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~xtmp~0#1) = 1*ULTIMATE.start_main_~xtmp~0#1 Supporting invariants [] [2023-11-29 00:28:24,939 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab3628a-b5be-4a93-9660-883d64e970c2/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2023-11-29 00:28:24,940 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-29 00:28:24,957 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:28:24,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:28:24,966 INFO L262 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 00:28:24,966 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:28:24,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:28:24,982 WARN L260 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 00:28:24,983 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:28:24,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:28:24,984 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-11-29 00:28:24,984 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2023-11-29 00:28:24,996 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 14 states and 18 transitions. Complement of second has 5 states. [2023-11-29 00:28:24,996 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 [2023-11-29 00:28:24,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2023-11-29 00:28:24,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2023-11-29 00:28:24,997 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 7 letters. Loop has 1 letters. [2023-11-29 00:28:24,998 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 00:28:24,998 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-29 00:28:25,009 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:28:25,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:28:25,017 INFO L262 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 00:28:25,018 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:28:25,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:28:25,032 WARN L260 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 00:28:25,032 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:28:25,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:28:25,033 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2023-11-29 00:28:25,033 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2023-11-29 00:28:25,043 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 14 states and 18 transitions. Complement of second has 5 states. [2023-11-29 00:28:25,044 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 [2023-11-29 00:28:25,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2023-11-29 00:28:25,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2023-11-29 00:28:25,045 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 7 letters. Loop has 1 letters. [2023-11-29 00:28:25,046 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 00:28:25,046 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-29 00:28:25,057 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:28:25,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:28:25,066 INFO L262 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 00:28:25,067 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:28:25,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:28:25,081 WARN L260 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 00:28:25,081 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:28:25,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:28:25,082 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 1 loop predicates [2023-11-29 00:28:25,082 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2023-11-29 00:28:25,094 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 11 states and 13 transitions. Complement of second has 4 states. [2023-11-29 00:28:25,094 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 [2023-11-29 00:28:25,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2023-11-29 00:28:25,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2023-11-29 00:28:25,096 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 7 letters. Loop has 1 letters. [2023-11-29 00:28:25,096 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 00:28:25,097 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 8 letters. Loop has 1 letters. [2023-11-29 00:28:25,097 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 00:28:25,097 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 7 letters. Loop has 2 letters. [2023-11-29 00:28:25,097 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 00:28:25,097 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 13 transitions. [2023-11-29 00:28:25,098 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-29 00:28:25,098 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 0 states and 0 transitions. [2023-11-29 00:28:25,098 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-29 00:28:25,099 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-29 00:28:25,099 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-29 00:28:25,099 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:28:25,099 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 00:28:25,099 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 00:28:25,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:28:25,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 00:28:25,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 00:28:25,100 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:28:25,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:28:25,100 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2023-11-29 00:28:25,100 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2023-11-29 00:28:25,100 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-29 00:28:25,101 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2023-11-29 00:28:25,101 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-29 00:28:25,101 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-29 00:28:25,101 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-29 00:28:25,101 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:28:25,101 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 00:28:25,101 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 00:28:25,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 00:28:25,102 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 00:28:25,102 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-11-29 00:28:25,102 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-11-29 00:28:25,102 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-29 00:28:25,102 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-11-29 00:28:25,110 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 12:28:25 BoogieIcfgContainer [2023-11-29 00:28:25,110 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-29 00:28:25,111 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 00:28:25,111 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 00:28:25,111 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 00:28:25,112 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:28:22" (3/4) ... [2023-11-29 00:28:25,114 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-29 00:28:25,115 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 00:28:25,116 INFO L158 Benchmark]: Toolchain (without parser) took 2797.61ms. Allocated memory is still 163.6MB. Free memory was 130.4MB in the beginning and 117.2MB in the end (delta: 13.2MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. [2023-11-29 00:28:25,116 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 117.4MB. Free memory is still 91.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 00:28:25,117 INFO L158 Benchmark]: CACSL2BoogieTranslator took 181.12ms. Allocated memory is still 163.6MB. Free memory was 130.4MB in the beginning and 121.0MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-29 00:28:25,117 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.06ms. Allocated memory is still 163.6MB. Free memory was 121.0MB in the beginning and 119.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 00:28:25,118 INFO L158 Benchmark]: Boogie Preprocessor took 29.00ms. Allocated memory is still 163.6MB. Free memory was 119.4MB in the beginning and 117.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 00:28:25,118 INFO L158 Benchmark]: RCFGBuilder took 225.40ms. Allocated memory is still 163.6MB. Free memory was 117.8MB in the beginning and 109.5MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-29 00:28:25,119 INFO L158 Benchmark]: BuchiAutomizer took 2322.00ms. Allocated memory is still 163.6MB. Free memory was 109.5MB in the beginning and 117.4MB in the end (delta: -7.9MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 00:28:25,119 INFO L158 Benchmark]: Witness Printer took 4.02ms. Allocated memory is still 163.6MB. Free memory was 117.4MB in the beginning and 117.2MB in the end (delta: 162.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 00:28:25,122 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 117.4MB. Free memory is still 91.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 181.12ms. Allocated memory is still 163.6MB. Free memory was 130.4MB in the beginning and 121.0MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.06ms. Allocated memory is still 163.6MB. Free memory was 121.0MB in the beginning and 119.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.00ms. Allocated memory is still 163.6MB. Free memory was 119.4MB in the beginning and 117.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 225.40ms. Allocated memory is still 163.6MB. Free memory was 117.8MB in the beginning and 109.5MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 2322.00ms. Allocated memory is still 163.6MB. Free memory was 109.5MB in the beginning and 117.4MB in the end (delta: -7.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.02ms. Allocated memory is still 163.6MB. Free memory was 117.4MB in the beginning and 117.2MB in the end (delta: 162.0kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (2 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function x and consists of 4 locations. One deterministic module has affine ranking function xtmp and consists of 3 locations. One nondeterministic module has affine ranking function xtmp and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.2s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 1.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 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: 1/1 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 30 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 25 mSDsluCounter, 38 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 36 IncrementalHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 32 mSDtfsCounter, 36 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax170 hnf100 lsp39 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf111 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 31ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-11-29 00:28:25,133 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab3628a-b5be-4a93-9660-883d64e970c2/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2023-11-29 00:28:25,337 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab3628a-b5be-4a93-9660-883d64e970c2/bin/uautomizer-verify-BQ2R08f2Ya/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