./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loops/trex02-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- 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_47dfc8cb-9104-483f-b9ee-8d04414b26d4/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47dfc8cb-9104-483f-b9ee-8d04414b26d4/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_47dfc8cb-9104-483f-b9ee-8d04414b26d4/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47dfc8cb-9104-483f-b9ee-8d04414b26d4/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loops/trex02-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47dfc8cb-9104-483f-b9ee-8d04414b26d4/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47dfc8cb-9104-483f-b9ee-8d04414b26d4/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 32bit --witnessprinter.graph.data.programhash f8f2b0fe07eaaf370138039a17933ca03641a0ac6eda79ccb91fdfa5c5cca256 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 10:41:34,001 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 10:41:34,072 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47dfc8cb-9104-483f-b9ee-8d04414b26d4/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Termination-32bit-Automizer_Default.epf [2023-11-26 10:41:34,077 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 10:41:34,078 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 10:41:34,103 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 10:41:34,104 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 10:41:34,104 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 10:41:34,105 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 10:41:34,106 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 10:41:34,107 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 10:41:34,107 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 10:41:34,108 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 10:41:34,109 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-26 10:41:34,109 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-26 10:41:34,110 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-26 10:41:34,111 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-26 10:41:34,111 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-26 10:41:34,112 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-26 10:41:34,112 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 10:41:34,113 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-26 10:41:34,114 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 10:41:34,114 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 10:41:34,115 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 10:41:34,115 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 10:41:34,116 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-26 10:41:34,116 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-26 10:41:34,116 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-26 10:41:34,117 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 10:41:34,117 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 10:41:34,118 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 10:41:34,118 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-26 10:41:34,119 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 10:41:34,119 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 10:41:34,119 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 10:41:34,120 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 10:41:34,120 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 10:41:34,121 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-26 10:41:34,121 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_47dfc8cb-9104-483f-b9ee-8d04414b26d4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47dfc8cb-9104-483f-b9ee-8d04414b26d4/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f8f2b0fe07eaaf370138039a17933ca03641a0ac6eda79ccb91fdfa5c5cca256 [2023-11-26 10:41:34,434 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 10:41:34,464 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 10:41:34,466 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 10:41:34,468 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 10:41:34,469 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 10:41:34,470 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47dfc8cb-9104-483f-b9ee-8d04414b26d4/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/loops/trex02-1.c [2023-11-26 10:41:37,714 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 10:41:37,932 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 10:41:37,933 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47dfc8cb-9104-483f-b9ee-8d04414b26d4/sv-benchmarks/c/loops/trex02-1.c [2023-11-26 10:41:37,941 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47dfc8cb-9104-483f-b9ee-8d04414b26d4/bin/uautomizer-verify-VRDe98Ueme/data/27d45b2ca/eaa029fddcb0429da5e8ae8a6d67d772/FLAG7b282976d [2023-11-26 10:41:37,956 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47dfc8cb-9104-483f-b9ee-8d04414b26d4/bin/uautomizer-verify-VRDe98Ueme/data/27d45b2ca/eaa029fddcb0429da5e8ae8a6d67d772 [2023-11-26 10:41:37,959 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 10:41:37,961 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 10:41:37,963 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 10:41:37,963 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 10:41:37,969 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 10:41:37,970 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:41:37" (1/1) ... [2023-11-26 10:41:37,971 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53fb7ce4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:37, skipping insertion in model container [2023-11-26 10:41:37,971 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:41:37" (1/1) ... [2023-11-26 10:41:37,993 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 10:41:38,180 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:41:38,198 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 10:41:38,216 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:41:38,233 INFO L206 MainTranslator]: Completed translation [2023-11-26 10:41:38,234 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:38 WrapperNode [2023-11-26 10:41:38,234 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 10:41:38,235 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 10:41:38,236 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 10:41:38,236 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 10:41:38,244 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:38" (1/1) ... [2023-11-26 10:41:38,251 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:38" (1/1) ... [2023-11-26 10:41:38,269 INFO L138 Inliner]: procedures = 15, calls = 11, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 38 [2023-11-26 10:41:38,270 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 10:41:38,270 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 10:41:38,271 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 10:41:38,271 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 10:41:38,281 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:38" (1/1) ... [2023-11-26 10:41:38,282 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:38" (1/1) ... [2023-11-26 10:41:38,283 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:38" (1/1) ... [2023-11-26 10:41:38,294 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-26 10:41:38,295 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:38" (1/1) ... [2023-11-26 10:41:38,295 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:38" (1/1) ... [2023-11-26 10:41:38,298 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:38" (1/1) ... [2023-11-26 10:41:38,301 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:38" (1/1) ... [2023-11-26 10:41:38,302 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:38" (1/1) ... [2023-11-26 10:41:38,303 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:38" (1/1) ... [2023-11-26 10:41:38,305 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 10:41:38,306 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 10:41:38,306 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 10:41:38,306 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 10:41:38,307 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:38" (1/1) ... [2023-11-26 10:41:38,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:41:38,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47dfc8cb-9104-483f-b9ee-8d04414b26d4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:41:38,340 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47dfc8cb-9104-483f-b9ee-8d04414b26d4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:41:38,349 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47dfc8cb-9104-483f-b9ee-8d04414b26d4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-26 10:41:38,390 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 10:41:38,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 10:41:38,392 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 10:41:38,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 10:41:38,462 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 10:41:38,465 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 10:41:38,586 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 10:41:38,594 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 10:41:38,594 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-26 10:41:38,596 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:41:38 BoogieIcfgContainer [2023-11-26 10:41:38,596 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 10:41:38,598 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-26 10:41:38,598 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-26 10:41:38,601 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-26 10:41:38,602 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-26 10:41:38,602 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 26.11 10:41:37" (1/3) ... [2023-11-26 10:41:38,603 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3fd56961 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.11 10:41:38, skipping insertion in model container [2023-11-26 10:41:38,603 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-26 10:41:38,603 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:38" (2/3) ... [2023-11-26 10:41:38,604 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3fd56961 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.11 10:41:38, skipping insertion in model container [2023-11-26 10:41:38,604 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-26 10:41:38,604 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:41:38" (3/3) ... [2023-11-26 10:41:38,606 INFO L332 chiAutomizerObserver]: Analyzing ICFG trex02-1.c [2023-11-26 10:41:38,671 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-26 10:41:38,671 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-26 10:41:38,671 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-26 10:41:38,671 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-26 10:41:38,671 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-26 10:41:38,671 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-26 10:41:38,672 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-26 10:41:38,673 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-26 10:41:38,678 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 14 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:38,693 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-11-26 10:41:38,693 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 10:41:38,693 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 10:41:38,699 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-26 10:41:38,699 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-26 10:41:38,699 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-26 10:41:38,700 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 14 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:38,701 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-11-26 10:41:38,702 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 10:41:38,702 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 10:41:38,702 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-26 10:41:38,702 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-26 10:41:38,711 INFO L748 eck$LassoCheckResult]: Stem: 13#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(11, 2);call #Ultimate.allocInit(12, 3);~x~0 := 0; 5#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet5#1, main_#t~nondet6#1, main_~c~0#1;havoc main_#t~nondet5#1;~x~0 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 10#L23-2true [2023-11-26 10:41:38,712 INFO L750 eck$LassoCheckResult]: Loop: 10#L23-2true assume !!(~x~0 > 0);havoc main_#t~nondet6#1;main_~c~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 4#L25true assume 0 != main_~c~0#1 % 256;assume { :begin_inline_foo } true;havoc foo_#t~post4#1;foo_#t~post4#1 := ~x~0;~x~0 := foo_#t~post4#1 - 1;havoc foo_#t~post4#1; 8#L17true havoc foo_#t~post4#1;assume { :end_inline_foo } true; 9#L25-2true havoc main_~c~0#1; 10#L23-2true [2023-11-26 10:41:38,739 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:41:38,739 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-11-26 10:41:38,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:41:38,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195569681] [2023-11-26 10:41:38,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:38,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:41:38,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:41:38,845 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:41:38,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:41:38,871 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:41:38,875 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:41:38,875 INFO L85 PathProgramCache]: Analyzing trace with hash 1265194, now seen corresponding path program 1 times [2023-11-26 10:41:38,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:41:38,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906969659] [2023-11-26 10:41:38,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:38,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:41:38,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:41:38,888 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:41:38,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:41:38,895 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:41:38,897 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:41:38,897 INFO L85 PathProgramCache]: Analyzing trace with hash 889692396, now seen corresponding path program 1 times [2023-11-26 10:41:38,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:41:38,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112908268] [2023-11-26 10:41:38,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:38,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:41:38,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:41:38,924 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:41:38,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:41:38,942 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:41:39,031 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 10:41:39,032 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 10:41:39,032 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 10:41:39,032 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 10:41:39,032 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-26 10:41:39,032 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:41:39,033 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 10:41:39,033 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 10:41:39,033 INFO L133 ssoRankerPreferences]: Filename of dumped script: trex02-1.c_Iteration1_Loop [2023-11-26 10:41:39,033 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 10:41:39,034 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 10:41:39,050 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 10:41:39,060 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 10:41:39,064 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 10:41:39,075 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 10:41:39,123 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 10:41:39,123 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-26 10:41:39,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:41:39,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47dfc8cb-9104-483f-b9ee-8d04414b26d4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:41:39,128 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47dfc8cb-9104-483f-b9ee-8d04414b26d4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:41:39,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47dfc8cb-9104-483f-b9ee-8d04414b26d4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-26 10:41:39,132 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 10:41:39,132 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 10:41:39,152 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 10:41:39,153 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet6#1=0} Honda state: {ULTIMATE.start_main_#t~nondet6#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-26 10:41:39,159 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47dfc8cb-9104-483f-b9ee-8d04414b26d4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2023-11-26 10:41:39,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:41:39,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47dfc8cb-9104-483f-b9ee-8d04414b26d4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:41:39,164 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47dfc8cb-9104-483f-b9ee-8d04414b26d4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:41:39,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47dfc8cb-9104-483f-b9ee-8d04414b26d4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-26 10:41:39,186 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 10:41:39,186 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 10:41:39,209 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 10:41:39,210 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0#1=0} Honda state: {ULTIMATE.start_main_~c~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-26 10:41:39,218 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47dfc8cb-9104-483f-b9ee-8d04414b26d4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-11-26 10:41:39,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:41:39,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47dfc8cb-9104-483f-b9ee-8d04414b26d4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:41:39,228 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47dfc8cb-9104-483f-b9ee-8d04414b26d4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:41:39,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47dfc8cb-9104-483f-b9ee-8d04414b26d4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-26 10:41:39,264 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 10:41:39,264 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 10:41:39,304 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47dfc8cb-9104-483f-b9ee-8d04414b26d4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-11-26 10:41:39,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:41:39,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47dfc8cb-9104-483f-b9ee-8d04414b26d4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:41:39,307 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47dfc8cb-9104-483f-b9ee-8d04414b26d4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:41:39,321 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47dfc8cb-9104-483f-b9ee-8d04414b26d4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-26 10:41:39,321 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-26 10:41:39,321 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 10:41:39,351 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-26 10:41:39,355 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47dfc8cb-9104-483f-b9ee-8d04414b26d4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-11-26 10:41:39,355 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 10:41:39,356 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 10:41:39,356 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 10:41:39,356 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 10:41:39,356 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-26 10:41:39,356 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:41:39,356 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 10:41:39,356 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 10:41:39,357 INFO L133 ssoRankerPreferences]: Filename of dumped script: trex02-1.c_Iteration1_Loop [2023-11-26 10:41:39,357 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 10:41:39,357 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 10:41:39,359 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 10:41:39,362 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 10:41:39,372 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 10:41:39,379 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 10:41:39,424 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 10:41:39,429 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-26 10:41:39,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:41:39,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47dfc8cb-9104-483f-b9ee-8d04414b26d4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:41:39,431 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47dfc8cb-9104-483f-b9ee-8d04414b26d4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:41:39,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47dfc8cb-9104-483f-b9ee-8d04414b26d4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-26 10:41:39,434 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 10:41:39,445 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 10:41:39,445 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 10:41:39,446 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 10:41:39,446 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 10:41:39,446 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 10:41:39,449 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 10:41:39,449 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 10:41:39,458 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 10:41:39,466 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47dfc8cb-9104-483f-b9ee-8d04414b26d4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-11-26 10:41:39,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:41:39,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47dfc8cb-9104-483f-b9ee-8d04414b26d4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:41:39,468 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47dfc8cb-9104-483f-b9ee-8d04414b26d4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:41:39,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47dfc8cb-9104-483f-b9ee-8d04414b26d4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-26 10:41:39,480 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 10:41:39,490 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 10:41:39,491 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 10:41:39,491 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 10:41:39,491 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 10:41:39,491 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 10:41:39,493 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 10:41:39,493 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 10:41:39,505 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-26 10:41:39,510 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-26 10:41:39,510 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-26 10:41:39,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:41:39,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47dfc8cb-9104-483f-b9ee-8d04414b26d4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:41:39,550 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47dfc8cb-9104-483f-b9ee-8d04414b26d4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:41:39,553 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-26 10:41:39,553 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-26 10:41:39,553 INFO L513 LassoAnalysis]: Proved termination. [2023-11-26 10:41:39,554 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(~x~0) = 1*~x~0 Supporting invariants [] [2023-11-26 10:41:39,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47dfc8cb-9104-483f-b9ee-8d04414b26d4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-26 10:41:39,559 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47dfc8cb-9104-483f-b9ee-8d04414b26d4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-11-26 10:41:39,562 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-26 10:41:39,592 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:41:39,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:39,621 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 10:41:39,623 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:41:39,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:39,647 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 10:41:39,648 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:41:39,747 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 10:41:39,794 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 [2023-11-26 10:41:39,797 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 15 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 14 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) 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) [2023-11-26 10:41:39,852 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 15 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 14 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). 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 35 states and 42 transitions. Complement of second has 7 states. [2023-11-26 10:41:39,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-26 10:41:39,863 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) [2023-11-26 10:41:39,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 28 transitions. [2023-11-26 10:41:39,865 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 2 letters. Loop has 4 letters. [2023-11-26 10:41:39,866 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 10:41:39,867 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 6 letters. Loop has 4 letters. [2023-11-26 10:41:39,876 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 10:41:39,876 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 2 letters. Loop has 8 letters. [2023-11-26 10:41:39,877 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 10:41:39,877 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 42 transitions. [2023-11-26 10:41:39,881 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-26 10:41:39,884 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 0 states and 0 transitions. [2023-11-26 10:41:39,885 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-26 10:41:39,885 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-26 10:41:39,886 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-26 10:41:39,886 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:41:39,886 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-26 10:41:39,886 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-26 10:41:39,886 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-26 10:41:39,886 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-26 10:41:39,887 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-11-26 10:41:39,887 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-26 10:41:39,887 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-11-26 10:41:39,896 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.11 10:41:39 BoogieIcfgContainer [2023-11-26 10:41:39,897 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-26 10:41:39,899 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 10:41:39,899 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 10:41:39,899 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 10:41:39,900 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:41:38" (3/4) ... [2023-11-26 10:41:39,902 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-26 10:41:39,904 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 10:41:39,906 INFO L158 Benchmark]: Toolchain (without parser) took 1944.00ms. Allocated memory was 140.5MB in the beginning and 182.5MB in the end (delta: 41.9MB). Free memory was 94.8MB in the beginning and 115.3MB in the end (delta: -20.6MB). Peak memory consumption was 22.4MB. Max. memory is 16.1GB. [2023-11-26 10:41:39,907 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 140.5MB. Free memory is still 114.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 10:41:39,908 INFO L158 Benchmark]: CACSL2BoogieTranslator took 271.93ms. Allocated memory is still 140.5MB. Free memory was 94.3MB in the beginning and 84.3MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-26 10:41:39,916 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.41ms. Allocated memory is still 140.5MB. Free memory was 84.3MB in the beginning and 82.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 10:41:39,917 INFO L158 Benchmark]: Boogie Preprocessor took 34.73ms. Allocated memory is still 140.5MB. Free memory was 82.7MB in the beginning and 81.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 10:41:39,918 INFO L158 Benchmark]: RCFGBuilder took 290.63ms. Allocated memory is still 140.5MB. Free memory was 81.3MB in the beginning and 72.2MB in the end (delta: 9.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-26 10:41:39,919 INFO L158 Benchmark]: BuchiAutomizer took 1299.13ms. Allocated memory was 140.5MB in the beginning and 182.5MB in the end (delta: 41.9MB). Free memory was 72.2MB in the beginning and 116.4MB in the end (delta: -44.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 10:41:39,921 INFO L158 Benchmark]: Witness Printer took 5.26ms. Allocated memory is still 182.5MB. Free memory was 116.4MB in the beginning and 115.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 10:41:39,928 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 140.5MB. Free memory is still 114.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 271.93ms. Allocated memory is still 140.5MB. Free memory was 94.3MB in the beginning and 84.3MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.41ms. Allocated memory is still 140.5MB. Free memory was 84.3MB in the beginning and 82.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.73ms. Allocated memory is still 140.5MB. Free memory was 82.7MB in the beginning and 81.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 290.63ms. Allocated memory is still 140.5MB. Free memory was 81.3MB in the beginning and 72.2MB in the end (delta: 9.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 1299.13ms. Allocated memory was 140.5MB in the beginning and 182.5MB in the end (delta: 41.9MB). Free memory was 72.2MB in the beginning and 116.4MB in the end (delta: -44.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.26ms. Allocated memory is still 182.5MB. Free memory was 116.4MB in the beginning and 115.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function x and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.2s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. 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, 12 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11 mSDsluCounter, 26 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 16 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10 IncrementalHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 10 mSDtfsCounter, 10 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital10 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 28ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s 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 10:41:39,961 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47dfc8cb-9104-483f-b9ee-8d04414b26d4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-11-26 10:41:40,159 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47dfc8cb-9104-483f-b9ee-8d04414b26d4/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