./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/Mysore-2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87e10f49-2afb-48e6-842d-31c9c5515bdb/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87e10f49-2afb-48e6-842d-31c9c5515bdb/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87e10f49-2afb-48e6-842d-31c9c5515bdb/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87e10f49-2afb-48e6-842d-31c9c5515bdb/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/Mysore-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87e10f49-2afb-48e6-842d-31c9c5515bdb/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87e10f49-2afb-48e6-842d-31c9c5515bdb/bin/uautomizer-verify-VRDe98Ueme --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash e573de14d9788c77bce7065ed34a1586a64b72729dbf270f6aaf1ae9cdd54fd7 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:58:38,599 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:58:38,724 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87e10f49-2afb-48e6-842d-31c9c5515bdb/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-11-26 11:58:38,733 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:58:38,734 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:58:38,775 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:58:38,776 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:58:38,776 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:58:38,777 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 11:58:38,782 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 11:58:38,783 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:58:38,784 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:58:38,784 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:58:38,787 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-26 11:58:38,787 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-26 11:58:38,788 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-26 11:58:38,788 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-26 11:58:38,789 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-26 11:58:38,789 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-26 11:58:38,790 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:58:38,790 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-26 11:58:38,791 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:58:38,791 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:58:38,792 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-26 11:58:38,792 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-26 11:58:38,793 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-26 11:58:38,793 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 11:58:38,793 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:58:38,794 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-26 11:58:38,794 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:58:38,796 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:58:38,796 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:58:38,797 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:58:38,797 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 11:58:38,798 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-26 11:58:38,798 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_87e10f49-2afb-48e6-842d-31c9c5515bdb/bin/uautomizer-verify-VRDe98Ueme/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87e10f49-2afb-48e6-842d-31c9c5515bdb/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e573de14d9788c77bce7065ed34a1586a64b72729dbf270f6aaf1ae9cdd54fd7 [2023-11-26 11:58:39,121 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:58:39,157 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:58:39,160 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:58:39,161 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:58:39,162 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:58:39,163 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87e10f49-2afb-48e6-842d-31c9c5515bdb/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/termination-crafted/Mysore-2.c [2023-11-26 11:58:42,439 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:58:42,736 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:58:42,737 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87e10f49-2afb-48e6-842d-31c9c5515bdb/sv-benchmarks/c/termination-crafted/Mysore-2.c [2023-11-26 11:58:42,745 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87e10f49-2afb-48e6-842d-31c9c5515bdb/bin/uautomizer-verify-VRDe98Ueme/data/9fb37ffa5/22747a90ac6a44ab9a3b28d82a61c64c/FLAG00811fcb3 [2023-11-26 11:58:42,766 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87e10f49-2afb-48e6-842d-31c9c5515bdb/bin/uautomizer-verify-VRDe98Ueme/data/9fb37ffa5/22747a90ac6a44ab9a3b28d82a61c64c [2023-11-26 11:58:42,772 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:58:42,775 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:58:42,779 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:58:42,779 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:58:42,787 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:58:42,788 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:58:42" (1/1) ... [2023-11-26 11:58:42,789 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@577621c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:42, skipping insertion in model container [2023-11-26 11:58:42,789 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:58:42" (1/1) ... [2023-11-26 11:58:42,816 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:58:43,023 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:58:43,029 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:58:43,045 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:58:43,060 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:58:43,061 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:43 WrapperNode [2023-11-26 11:58:43,061 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:58:43,062 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:58:43,062 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:58:43,062 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:58:43,071 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:43" (1/1) ... [2023-11-26 11:58:43,076 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:43" (1/1) ... [2023-11-26 11:58:43,095 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 25 [2023-11-26 11:58:43,095 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:58:43,096 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:58:43,097 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:58:43,097 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:58:43,110 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:43" (1/1) ... [2023-11-26 11:58:43,110 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:43" (1/1) ... [2023-11-26 11:58:43,111 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:43" (1/1) ... [2023-11-26 11:58:43,118 INFO L175 MemorySlicer]: No memory access in input program. [2023-11-26 11:58:43,118 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:43" (1/1) ... [2023-11-26 11:58:43,119 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:43" (1/1) ... [2023-11-26 11:58:43,121 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:43" (1/1) ... [2023-11-26 11:58:43,125 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:43" (1/1) ... [2023-11-26 11:58:43,126 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:43" (1/1) ... [2023-11-26 11:58:43,127 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:43" (1/1) ... [2023-11-26 11:58:43,129 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:58:43,130 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:58:43,130 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:58:43,130 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:58:43,131 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:43" (1/1) ... [2023-11-26 11:58:43,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:58:43,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87e10f49-2afb-48e6-842d-31c9c5515bdb/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:58:43,167 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87e10f49-2afb-48e6-842d-31c9c5515bdb/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:58:43,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87e10f49-2afb-48e6-842d-31c9c5515bdb/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-26 11:58:43,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:58:43,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:58:43,316 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:58:43,319 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:58:43,422 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:58:43,434 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:58:43,434 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-26 11:58:43,436 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:58:43 BoogieIcfgContainer [2023-11-26 11:58:43,436 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:58:43,438 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-26 11:58:43,438 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-26 11:58:43,443 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-26 11:58:43,444 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-26 11:58:43,445 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 26.11 11:58:42" (1/3) ... [2023-11-26 11:58:43,446 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@28d85cec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.11 11:58:43, skipping insertion in model container [2023-11-26 11:58:43,447 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-26 11:58:43,447 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:43" (2/3) ... [2023-11-26 11:58:43,448 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@28d85cec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.11 11:58:43, skipping insertion in model container [2023-11-26 11:58:43,448 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-26 11:58:43,448 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:58:43" (3/3) ... [2023-11-26 11:58:43,450 INFO L332 chiAutomizerObserver]: Analyzing ICFG Mysore-2.c [2023-11-26 11:58:43,539 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-26 11:58:43,540 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-26 11:58:43,540 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-26 11:58:43,540 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-26 11:58:43,541 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-26 11:58:43,541 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-26 11:58:43,541 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-26 11:58:43,542 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-26 11:58:43,547 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:58:43,567 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-11-26 11:58:43,568 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 11:58:43,568 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 11:58:43,575 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2023-11-26 11:58:43,575 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-11-26 11:58:43,575 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-26 11:58:43,576 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:58:43,578 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-11-26 11:58:43,578 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 11:58:43,578 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 11:58:43,579 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2023-11-26 11:58:43,579 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-11-26 11:58:43,589 INFO L748 eck$LassoCheckResult]: Stem: 5#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 6#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~c~0#1, main_~x~0#1;havoc main_~c~0#1;havoc main_~x~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~c~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 7#L19true assume !!(-65535 <= main_~x~0#1 && main_~x~0#1 <= 65535); 9#L20true assume !!(-65535 <= main_~c~0#1 && main_~c~0#1 <= 65535); 4#L21true assume main_~c~0#1 >= 2; 8#L22-2true [2023-11-26 11:58:43,590 INFO L750 eck$LassoCheckResult]: Loop: 8#L22-2true assume !!(main_~x~0#1 + main_~c~0#1 >= 0);main_~x~0#1 := main_~x~0#1 - main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1; 8#L22-2true [2023-11-26 11:58:43,597 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:58:43,597 INFO L85 PathProgramCache]: Analyzing trace with hash 28695847, now seen corresponding path program 1 times [2023-11-26 11:58:43,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:58:43,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311295155] [2023-11-26 11:58:43,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:43,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:58:43,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:58:43,703 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 11:58:43,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:58:43,728 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 11:58:43,732 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:58:43,732 INFO L85 PathProgramCache]: Analyzing trace with hash 55, now seen corresponding path program 1 times [2023-11-26 11:58:43,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:58:43,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096211209] [2023-11-26 11:58:43,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:43,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:58:43,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:58:43,746 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 11:58:43,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:58:43,753 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 11:58:43,755 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:58:43,755 INFO L85 PathProgramCache]: Analyzing trace with hash 889571281, now seen corresponding path program 1 times [2023-11-26 11:58:43,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:58:43,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743695409] [2023-11-26 11:58:43,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:43,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:58:43,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:58:43,769 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 11:58:43,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:58:43,778 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 11:58:43,886 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 11:58:43,887 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 11:58:43,887 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 11:58:43,887 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 11:58:43,887 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-26 11:58:43,888 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:58:43,888 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 11:58:43,888 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 11:58:43,888 INFO L133 ssoRankerPreferences]: Filename of dumped script: Mysore-2.c_Iteration1_Loop [2023-11-26 11:58:43,888 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 11:58:43,889 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 11:58:43,908 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:58:43,932 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:58:43,938 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:58:44,037 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 11:58:44,038 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-26 11:58:44,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:58:44,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87e10f49-2afb-48e6-842d-31c9c5515bdb/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:58:44,041 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87e10f49-2afb-48e6-842d-31c9c5515bdb/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:58:44,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87e10f49-2afb-48e6-842d-31c9c5515bdb/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-26 11:58:44,048 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 11:58:44,048 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 11:58:44,069 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87e10f49-2afb-48e6-842d-31c9c5515bdb/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-11-26 11:58:44,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:58:44,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87e10f49-2afb-48e6-842d-31c9c5515bdb/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:58:44,070 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87e10f49-2afb-48e6-842d-31c9c5515bdb/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:58:44,072 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87e10f49-2afb-48e6-842d-31c9c5515bdb/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-26 11:58:44,074 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-26 11:58:44,074 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 11:58:44,229 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-26 11:58:44,237 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87e10f49-2afb-48e6-842d-31c9c5515bdb/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-11-26 11:58:44,238 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 11:58:44,238 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 11:58:44,238 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 11:58:44,238 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 11:58:44,238 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-26 11:58:44,238 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:58:44,238 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 11:58:44,238 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 11:58:44,238 INFO L133 ssoRankerPreferences]: Filename of dumped script: Mysore-2.c_Iteration1_Loop [2023-11-26 11:58:44,238 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 11:58:44,239 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 11:58:44,241 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:58:44,269 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:58:44,274 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:58:44,333 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 11:58:44,338 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-26 11:58:44,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:58:44,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87e10f49-2afb-48e6-842d-31c9c5515bdb/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:58:44,341 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87e10f49-2afb-48e6-842d-31c9c5515bdb/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:58:44,349 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-26 11:58:44,364 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 11:58:44,365 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 11:58:44,365 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 11:58:44,365 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 11:58:44,365 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 11:58:44,370 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 11:58:44,370 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 11:58:44,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87e10f49-2afb-48e6-842d-31c9c5515bdb/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-26 11:58:44,382 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 11:58:44,389 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87e10f49-2afb-48e6-842d-31c9c5515bdb/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-11-26 11:58:44,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:58:44,390 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87e10f49-2afb-48e6-842d-31c9c5515bdb/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:58:44,393 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87e10f49-2afb-48e6-842d-31c9c5515bdb/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:58:44,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87e10f49-2afb-48e6-842d-31c9c5515bdb/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-26 11:58:44,401 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-26 11:58:44,415 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 11:58:44,416 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 11:58:44,416 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 11:58:44,416 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 11:58:44,420 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-26 11:58:44,421 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-26 11:58:44,433 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 11:58:44,445 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87e10f49-2afb-48e6-842d-31c9c5515bdb/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-11-26 11:58:44,446 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:58:44,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87e10f49-2afb-48e6-842d-31c9c5515bdb/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:58:44,448 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87e10f49-2afb-48e6-842d-31c9c5515bdb/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:58:44,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87e10f49-2afb-48e6-842d-31c9c5515bdb/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-26 11:58:44,454 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-26 11:58:44,464 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 11:58:44,464 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 11:58:44,465 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 11:58:44,465 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 11:58:44,470 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-26 11:58:44,470 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-26 11:58:44,485 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 11:58:44,494 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87e10f49-2afb-48e6-842d-31c9c5515bdb/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-11-26 11:58:44,494 INFO L490 LassoAnalysis]: Using template '2-nested'. [2023-11-26 11:58:44,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:58:44,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87e10f49-2afb-48e6-842d-31c9c5515bdb/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:58:44,496 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87e10f49-2afb-48e6-842d-31c9c5515bdb/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:58:44,506 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-26 11:58:44,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87e10f49-2afb-48e6-842d-31c9c5515bdb/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-26 11:58:44,520 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 11:58:44,520 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 11:58:44,521 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 11:58:44,521 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 11:58:44,521 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2023-11-26 11:58:44,524 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2023-11-26 11:58:44,524 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 11:58:44,536 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-26 11:58:44,543 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-11-26 11:58:44,543 INFO L444 ModelExtractionUtils]: 1 out of 7 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-26 11:58:44,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:58:44,545 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87e10f49-2afb-48e6-842d-31c9c5515bdb/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:58:44,569 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87e10f49-2afb-48e6-842d-31c9c5515bdb/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:58:44,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87e10f49-2afb-48e6-842d-31c9c5515bdb/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-26 11:58:44,572 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-26 11:58:44,572 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-26 11:58:44,573 INFO L513 LassoAnalysis]: Proved termination. [2023-11-26 11:58:44,573 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = -2*ULTIMATE.start_main_~c~0#1 + 3 f1 = 2*ULTIMATE.start_main_~x~0#1 + 2*ULTIMATE.start_main_~c~0#1 + 1 Supporting invariants [] [2023-11-26 11:58:44,581 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87e10f49-2afb-48e6-842d-31c9c5515bdb/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2023-11-26 11:58:44,589 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-26 11:58:44,597 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IfThenElseExpression (if -2 * ~c~0 + 3 > 0 then 1 else 0) could not be translated [2023-11-26 11:58:44,598 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IfThenElseExpression (if -2 * ~c~0 + 3 > 0 then -2 * ~c~0 + 3 else 2 * ~x~0 + 2 * ~c~0 + 1) could not be translated [2023-11-26 11:58:44,626 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:58:44,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:44,642 INFO L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 11:58:44,643 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:58:44,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:44,675 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-26 11:58:44,676 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:58:44,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:58:44,728 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 [2023-11-26 11:58:44,730 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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) [2023-11-26 11:58:44,771 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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 21 states and 26 transitions. Complement of second has 6 states. [2023-11-26 11:58:44,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-26 11:58:44,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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) [2023-11-26 11:58:44,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2023-11-26 11:58:44,780 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 5 letters. Loop has 1 letters. [2023-11-26 11:58:44,781 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 11:58:44,781 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 6 letters. Loop has 1 letters. [2023-11-26 11:58:44,781 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 11:58:44,781 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 5 letters. Loop has 2 letters. [2023-11-26 11:58:44,781 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 11:58:44,782 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 26 transitions. [2023-11-26 11:58:44,785 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-26 11:58:44,787 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 0 states and 0 transitions. [2023-11-26 11:58:44,788 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-26 11:58:44,789 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-26 11:58:44,789 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-26 11:58:44,789 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:58:44,789 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-26 11:58:44,790 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-26 11:58:44,790 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-26 11:58:44,790 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-26 11:58:44,790 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-11-26 11:58:44,790 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-26 11:58:44,790 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-11-26 11:58:44,798 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.11 11:58:44 BoogieIcfgContainer [2023-11-26 11:58:44,798 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-26 11:58:44,799 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 11:58:44,799 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 11:58:44,799 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 11:58:44,799 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:58:43" (3/4) ... [2023-11-26 11:58:44,801 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-26 11:58:44,801 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 11:58:44,802 INFO L158 Benchmark]: Toolchain (without parser) took 2027.39ms. Allocated memory is still 163.6MB. Free memory was 116.1MB in the beginning and 101.3MB in the end (delta: 14.9MB). Peak memory consumption was 15.4MB. Max. memory is 16.1GB. [2023-11-26 11:58:44,802 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 115.3MB. Free memory is still 64.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:58:44,803 INFO L158 Benchmark]: CACSL2BoogieTranslator took 282.40ms. Allocated memory is still 163.6MB. Free memory was 116.1MB in the beginning and 106.6MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-26 11:58:44,804 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.56ms. Allocated memory is still 163.6MB. Free memory was 106.6MB in the beginning and 105.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 11:58:44,804 INFO L158 Benchmark]: Boogie Preprocessor took 32.61ms. Allocated memory is still 163.6MB. Free memory was 105.5MB in the beginning and 104.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:58:44,805 INFO L158 Benchmark]: RCFGBuilder took 306.93ms. Allocated memory is still 163.6MB. Free memory was 104.1MB in the beginning and 95.1MB in the end (delta: 8.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-26 11:58:44,805 INFO L158 Benchmark]: BuchiAutomizer took 1359.91ms. Allocated memory is still 163.6MB. Free memory was 94.6MB in the beginning and 101.4MB in the end (delta: -6.8MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:58:44,806 INFO L158 Benchmark]: Witness Printer took 2.85ms. Allocated memory is still 163.6MB. Free memory was 101.4MB in the beginning and 101.3MB in the end (delta: 161.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:58:44,809 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 115.3MB. Free memory is still 64.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 282.40ms. Allocated memory is still 163.6MB. Free memory was 116.1MB in the beginning and 106.6MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.56ms. Allocated memory is still 163.6MB. Free memory was 106.6MB in the beginning and 105.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.61ms. Allocated memory is still 163.6MB. Free memory was 105.5MB in the beginning and 104.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 306.93ms. Allocated memory is still 163.6MB. Free memory was 104.1MB in the beginning and 95.1MB in the end (delta: 8.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 1359.91ms. Allocated memory is still 163.6MB. Free memory was 94.6MB in the beginning and 101.4MB in the end (delta: -6.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.85ms. Allocated memory is still 163.6MB. Free memory was 101.4MB in the beginning and 101.3MB in the end (delta: 161.6kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IfThenElseExpression (if -2 * ~c~0 + 3 > 0 then 1 else 0) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IfThenElseExpression (if -2 * ~c~0 + 3 > 0 then -2 * ~c~0 + 3 else 2 * ~x~0 + 2 * ~c~0 + 1) could not be translated * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has 2-nested ranking function null, null and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.2s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 13 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12 mSDsluCounter, 14 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 13 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital17 mio100 ax170 hnf100 lsp58 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq170 hnf93 smp100 dnf100 smp100 tf107 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 43ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-11-26 11:58:44,832 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87e10f49-2afb-48e6-842d-31c9c5515bdb/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-11-26 11:58:45,028 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87e10f49-2afb-48e6-842d-31c9c5515bdb/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE