./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/b.11.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c13d91-a420-4314-b015-72aa0fb7f96d/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c13d91-a420-4314-b015-72aa0fb7f96d/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c13d91-a420-4314-b015-72aa0fb7f96d/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c13d91-a420-4314-b015-72aa0fb7f96d/bin/uautomizer-tPACEb0tL8/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/b.11.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c13d91-a420-4314-b015-72aa0fb7f96d/bin/uautomizer-tPACEb0tL8/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c13d91-a420-4314-b015-72aa0fb7f96d/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 5b4c99d0b33a566b40cf4365ddd1611945e8961cf9631a2c233f1ae25de30e8d --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 12:52:17,257 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:52:17,259 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:52:17,284 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:52:17,287 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:52:17,291 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:52:17,293 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:52:17,297 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:52:17,301 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:52:17,304 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:52:17,305 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:52:17,307 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:52:17,308 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:52:17,312 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:52:17,315 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:52:17,316 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:52:17,319 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:52:17,326 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:52:17,328 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:52:17,331 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:52:17,336 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:52:17,340 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:52:17,341 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:52:17,342 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:52:17,346 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:52:17,353 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:52:17,353 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:52:17,354 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:52:17,355 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:52:17,356 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:52:17,358 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:52:17,359 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:52:17,361 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:52:17,363 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:52:17,364 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:52:17,365 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:52:17,366 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:52:17,366 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:52:17,367 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:52:17,367 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:52:17,368 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:52:17,369 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c13d91-a420-4314-b015-72aa0fb7f96d/bin/uautomizer-tPACEb0tL8/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-11-16 12:52:17,411 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:52:17,411 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:52:17,412 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:52:17,412 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:52:17,414 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:52:17,414 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:52:17,415 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:52:17,415 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-16 12:52:17,415 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-16 12:52:17,415 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-16 12:52:17,416 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-16 12:52:17,417 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-16 12:52:17,417 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-16 12:52:17,417 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:52:17,417 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 12:52:17,418 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:52:17,418 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:52:17,418 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-16 12:52:17,418 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-16 12:52:17,419 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-16 12:52:17,419 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:52:17,419 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-16 12:52:17,419 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:52:17,419 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-16 12:52:17,420 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:52:17,420 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:52:17,420 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:52:17,422 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:52:17,423 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-16 12:52:17,423 INFO L138 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_91c13d91-a420-4314-b015-72aa0fb7f96d/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c13d91-a420-4314-b015-72aa0fb7f96d/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5b4c99d0b33a566b40cf4365ddd1611945e8961cf9631a2c233f1ae25de30e8d [2022-11-16 12:52:17,715 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:52:17,745 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:52:17,749 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:52:17,751 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:52:17,752 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:52:17,753 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c13d91-a420-4314-b015-72aa0fb7f96d/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/termination-restricted-15/b.11.c [2022-11-16 12:52:17,824 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c13d91-a420-4314-b015-72aa0fb7f96d/bin/uautomizer-tPACEb0tL8/data/e957451fd/b0fc7bf731134e1396ef3cd29e4a74a5/FLAGe26735912 [2022-11-16 12:52:18,318 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:52:18,321 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c13d91-a420-4314-b015-72aa0fb7f96d/sv-benchmarks/c/termination-restricted-15/b.11.c [2022-11-16 12:52:18,327 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c13d91-a420-4314-b015-72aa0fb7f96d/bin/uautomizer-tPACEb0tL8/data/e957451fd/b0fc7bf731134e1396ef3cd29e4a74a5/FLAGe26735912 [2022-11-16 12:52:18,695 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c13d91-a420-4314-b015-72aa0fb7f96d/bin/uautomizer-tPACEb0tL8/data/e957451fd/b0fc7bf731134e1396ef3cd29e4a74a5 [2022-11-16 12:52:18,697 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:52:18,699 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:52:18,701 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:52:18,701 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:52:18,704 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:52:18,705 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:52:18" (1/1) ... [2022-11-16 12:52:18,706 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c2e23f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:52:18, skipping insertion in model container [2022-11-16 12:52:18,707 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:52:18" (1/1) ... [2022-11-16 12:52:18,714 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:52:18,725 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:52:18,867 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:52:18,870 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:52:18,907 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:52:18,919 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:52:18,920 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:52:18 WrapperNode [2022-11-16 12:52:18,920 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:52:18,921 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:52:18,921 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:52:18,921 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:52:18,929 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:52:18" (1/1) ... [2022-11-16 12:52:18,934 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:52:18" (1/1) ... [2022-11-16 12:52:18,950 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2022-11-16 12:52:18,950 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:52:18,951 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:52:18,951 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:52:18,951 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:52:18,960 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:52:18" (1/1) ... [2022-11-16 12:52:18,961 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:52:18" (1/1) ... [2022-11-16 12:52:18,961 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:52:18" (1/1) ... [2022-11-16 12:52:18,962 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:52:18" (1/1) ... [2022-11-16 12:52:18,963 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:52:18" (1/1) ... [2022-11-16 12:52:18,967 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:52:18" (1/1) ... [2022-11-16 12:52:18,968 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:52:18" (1/1) ... [2022-11-16 12:52:18,968 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:52:18" (1/1) ... [2022-11-16 12:52:18,969 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:52:18,970 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:52:18,971 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:52:18,971 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:52:18,972 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:52:18" (1/1) ... [2022-11-16 12:52:18,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:52:18,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c13d91-a420-4314-b015-72aa0fb7f96d/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:52:19,008 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c13d91-a420-4314-b015-72aa0fb7f96d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:52:19,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c13d91-a420-4314-b015-72aa0fb7f96d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-16 12:52:19,051 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:52:19,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:52:19,118 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:52:19,120 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:52:19,192 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:52:19,198 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:52:19,199 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 12:52:19,200 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:52:19 BoogieIcfgContainer [2022-11-16 12:52:19,201 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:52:19,202 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-16 12:52:19,202 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-16 12:52:19,206 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-16 12:52:19,207 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-16 12:52:19,207 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 16.11 12:52:18" (1/3) ... [2022-11-16 12:52:19,208 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@30599ce5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.11 12:52:19, skipping insertion in model container [2022-11-16 12:52:19,209 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-16 12:52:19,209 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:52:18" (2/3) ... [2022-11-16 12:52:19,209 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@30599ce5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.11 12:52:19, skipping insertion in model container [2022-11-16 12:52:19,210 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-16 12:52:19,210 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:52:19" (3/3) ... [2022-11-16 12:52:19,211 INFO L332 chiAutomizerObserver]: Analyzing ICFG b.11.c [2022-11-16 12:52:19,270 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-16 12:52:19,270 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-16 12:52:19,270 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-16 12:52:19,270 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-16 12:52:19,270 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-16 12:52:19,271 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-16 12:52:19,271 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-16 12:52:19,271 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-16 12:52:19,279 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:52:19,311 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-16 12:52:19,311 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 12:52:19,312 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 12:52:19,316 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-16 12:52:19,317 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-16 12:52:19,317 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-16 12:52:19,317 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:52:19,318 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-16 12:52:19,318 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 12:52:19,319 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 12:52:19,319 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-16 12:52:19,319 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-16 12:52:19,325 INFO L748 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue 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, main_~y~0#1;havoc main_~c~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~c~0#1 := 0; 8#L15-2true [2022-11-16 12:52:19,325 INFO L750 eck$LassoCheckResult]: Loop: 8#L15-2true assume !!(((main_~x~0#1 >= 0 && main_~y~0#1 < 2147483647 - main_~x~0#1) || (main_~x~0#1 < 0 && main_~y~0#1 > -2147483648 - main_~x~0#1)) && main_~x~0#1 + main_~y~0#1 > 0); 9#L12true assume main_~x~0#1 > main_~y~0#1;main_~x~0#1 := main_~x~0#1 - 1; 8#L15-2true [2022-11-16 12:52:19,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:52:19,330 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-11-16 12:52:19,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:52:19,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488411751] [2022-11-16 12:52:19,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:52:19,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:52:19,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:52:19,404 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:52:19,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:52:19,423 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 12:52:19,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:52:19,426 INFO L85 PathProgramCache]: Analyzing trace with hash 1316, now seen corresponding path program 1 times [2022-11-16 12:52:19,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:52:19,427 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207497665] [2022-11-16 12:52:19,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:52:19,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:52:19,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:52:19,442 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:52:19,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:52:19,449 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 12:52:19,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:52:19,451 INFO L85 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 1 times [2022-11-16 12:52:19,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:52:19,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607184934] [2022-11-16 12:52:19,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:52:19,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:52:19,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:52:19,461 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:52:19,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:52:19,468 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 12:52:19,608 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 12:52:19,609 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 12:52:19,609 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 12:52:19,609 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 12:52:19,610 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-16 12:52:19,610 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:52:19,610 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 12:52:19,610 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 12:52:19,610 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.11.c_Iteration1_Loop [2022-11-16 12:52:19,610 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 12:52:19,611 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 12:52:19,636 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:52:19,683 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:52:19,689 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:52:19,791 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 12:52:19,792 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-16 12:52:19,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:52:19,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c13d91-a420-4314-b015-72aa0fb7f96d/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:52:19,798 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c13d91-a420-4314-b015-72aa0fb7f96d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:52:19,805 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 12:52:19,805 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 12:52:19,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c13d91-a420-4314-b015-72aa0fb7f96d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-16 12:52:19,828 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 12:52:19,828 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-16 12:52:19,832 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c13d91-a420-4314-b015-72aa0fb7f96d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2022-11-16 12:52:19,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:52:19,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c13d91-a420-4314-b015-72aa0fb7f96d/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:52:19,835 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c13d91-a420-4314-b015-72aa0fb7f96d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:52:19,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c13d91-a420-4314-b015-72aa0fb7f96d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-16 12:52:19,839 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 12:52:19,839 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 12:52:19,872 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 12:52:19,872 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-16 12:52:19,878 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c13d91-a420-4314-b015-72aa0fb7f96d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-16 12:52:19,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:52:19,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c13d91-a420-4314-b015-72aa0fb7f96d/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:52:19,881 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c13d91-a420-4314-b015-72aa0fb7f96d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:52:19,892 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 12:52:19,892 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 12:52:19,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c13d91-a420-4314-b015-72aa0fb7f96d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-16 12:52:19,935 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c13d91-a420-4314-b015-72aa0fb7f96d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-16 12:52:19,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:52:19,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c13d91-a420-4314-b015-72aa0fb7f96d/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:52:19,937 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c13d91-a420-4314-b015-72aa0fb7f96d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:52:19,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c13d91-a420-4314-b015-72aa0fb7f96d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-16 12:52:19,950 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-16 12:52:19,950 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 12:52:19,986 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-16 12:52:19,996 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c13d91-a420-4314-b015-72aa0fb7f96d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-16 12:52:19,996 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 12:52:19,997 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 12:52:19,997 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 12:52:19,997 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 12:52:19,997 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-16 12:52:19,997 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:52:19,997 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 12:52:19,997 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 12:52:19,997 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.11.c_Iteration1_Loop [2022-11-16 12:52:19,997 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 12:52:19,998 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 12:52:20,000 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:52:20,004 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:52:20,009 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:52:20,098 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 12:52:20,102 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-16 12:52:20,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:52:20,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c13d91-a420-4314-b015-72aa0fb7f96d/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:52:20,105 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c13d91-a420-4314-b015-72aa0fb7f96d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:52:20,109 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 [2022-11-16 12:52:20,122 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 12:52:20,123 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 12:52:20,123 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 12:52:20,123 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 12:52:20,128 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-16 12:52:20,128 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-16 12:52:20,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c13d91-a420-4314-b015-72aa0fb7f96d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-16 12:52:20,179 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 12:52:20,214 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c13d91-a420-4314-b015-72aa0fb7f96d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2022-11-16 12:52:20,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:52:20,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c13d91-a420-4314-b015-72aa0fb7f96d/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:52:20,230 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c13d91-a420-4314-b015-72aa0fb7f96d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:52:20,265 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 [2022-11-16 12:52:20,278 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 12:52:20,278 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 12:52:20,278 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 12:52:20,278 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 12:52:20,285 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-16 12:52:20,286 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-16 12:52:20,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c13d91-a420-4314-b015-72aa0fb7f96d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-16 12:52:20,310 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 12:52:20,314 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c13d91-a420-4314-b015-72aa0fb7f96d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-11-16 12:52:20,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:52:20,315 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c13d91-a420-4314-b015-72aa0fb7f96d/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:52:20,316 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c13d91-a420-4314-b015-72aa0fb7f96d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:52:20,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c13d91-a420-4314-b015-72aa0fb7f96d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-16 12:52:20,326 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 [2022-11-16 12:52:20,336 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 12:52:20,336 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 12:52:20,337 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 12:52:20,337 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 12:52:20,337 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 12:52:20,343 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 12:52:20,345 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 12:52:20,358 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-16 12:52:20,366 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2022-11-16 12:52:20,366 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 2 variables to zero. [2022-11-16 12:52:20,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:52:20,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c13d91-a420-4314-b015-72aa0fb7f96d/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:52:20,374 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c13d91-a420-4314-b015-72aa0fb7f96d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:52:20,391 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-16 12:52:20,392 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-16 12:52:20,392 INFO L513 LassoAnalysis]: Proved termination. [2022-11-16 12:52:20,393 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2022-11-16 12:52:20,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c13d91-a420-4314-b015-72aa0fb7f96d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-16 12:52:20,402 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c13d91-a420-4314-b015-72aa0fb7f96d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-11-16 12:52:20,405 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-16 12:52:20,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:52:20,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:20,454 INFO L263 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 12:52:20,455 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:52:20,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:20,476 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 12:52:20,479 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:52:20,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:52:20,550 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-11-16 12:52:20,552 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:52:20,621 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 24 states and 34 transitions. Complement of second has 7 states. [2022-11-16 12:52:20,625 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 [2022-11-16 12:52:20,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:52:20,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 18 transitions. [2022-11-16 12:52:20,632 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 2 letters. Loop has 2 letters. [2022-11-16 12:52:20,633 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 12:52:20,633 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 4 letters. Loop has 2 letters. [2022-11-16 12:52:20,634 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 12:52:20,634 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 2 letters. Loop has 4 letters. [2022-11-16 12:52:20,634 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 12:52:20,635 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 34 transitions. [2022-11-16 12:52:20,637 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-16 12:52:20,641 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 11 states and 15 transitions. [2022-11-16 12:52:20,642 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2022-11-16 12:52:20,642 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2022-11-16 12:52:20,643 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 15 transitions. [2022-11-16 12:52:20,643 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-16 12:52:20,643 INFO L218 hiAutomatonCegarLoop]: Abstraction has 11 states and 15 transitions. [2022-11-16 12:52:20,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 15 transitions. [2022-11-16 12:52:20,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2022-11-16 12:52:20,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.4) 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) [2022-11-16 12:52:20,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 14 transitions. [2022-11-16 12:52:20,670 INFO L240 hiAutomatonCegarLoop]: Abstraction has 10 states and 14 transitions. [2022-11-16 12:52:20,670 INFO L428 stractBuchiCegarLoop]: Abstraction has 10 states and 14 transitions. [2022-11-16 12:52:20,671 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-16 12:52:20,671 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 14 transitions. [2022-11-16 12:52:20,671 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-16 12:52:20,671 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 12:52:20,671 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 12:52:20,672 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-11-16 12:52:20,672 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-16 12:52:20,672 INFO L748 eck$LassoCheckResult]: Stem: 71#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 72#L-1 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, main_~y~0#1;havoc main_~c~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~c~0#1 := 0; 78#L15-2 assume !!(((main_~x~0#1 >= 0 && main_~y~0#1 < 2147483647 - main_~x~0#1) || (main_~x~0#1 < 0 && main_~y~0#1 > -2147483648 - main_~x~0#1)) && main_~x~0#1 + main_~y~0#1 > 0); 79#L12 [2022-11-16 12:52:20,672 INFO L750 eck$LassoCheckResult]: Loop: 79#L12 assume !(main_~x~0#1 > main_~y~0#1); 73#L15 assume !(main_~x~0#1 == main_~y~0#1);main_~y~0#1 := main_~y~0#1 - 1; 74#L15-2 assume !!(((main_~x~0#1 >= 0 && main_~y~0#1 < 2147483647 - main_~x~0#1) || (main_~x~0#1 < 0 && main_~y~0#1 > -2147483648 - main_~x~0#1)) && main_~x~0#1 + main_~y~0#1 > 0); 79#L12 [2022-11-16 12:52:20,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:52:20,673 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2022-11-16 12:52:20,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:52:20,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585436756] [2022-11-16 12:52:20,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:52:20,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:52:20,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:52:20,680 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:52:20,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:52:20,688 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 12:52:20,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:52:20,688 INFO L85 PathProgramCache]: Analyzing trace with hash 45829, now seen corresponding path program 1 times [2022-11-16 12:52:20,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:52:20,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129178149] [2022-11-16 12:52:20,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:52:20,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:52:20,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:52:20,705 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:52:20,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:52:20,712 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 12:52:20,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:52:20,713 INFO L85 PathProgramCache]: Analyzing trace with hash 889694462, now seen corresponding path program 1 times [2022-11-16 12:52:20,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:52:20,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4382381] [2022-11-16 12:52:20,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:52:20,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:52:20,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:52:20,723 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:52:20,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:52:20,732 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 12:52:20,801 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 12:52:20,801 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 12:52:20,802 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 12:52:20,802 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 12:52:20,802 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-16 12:52:20,802 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:52:20,802 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 12:52:20,803 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 12:52:20,803 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.11.c_Iteration2_Loop [2022-11-16 12:52:20,803 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 12:52:20,803 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 12:52:20,805 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:52:20,808 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:52:20,812 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:52:20,960 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 12:52:20,960 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-16 12:52:20,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:52:20,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c13d91-a420-4314-b015-72aa0fb7f96d/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:52:20,962 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c13d91-a420-4314-b015-72aa0fb7f96d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:52:20,967 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 12:52:20,968 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 12:52:20,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c13d91-a420-4314-b015-72aa0fb7f96d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-11-16 12:52:20,998 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 12:52:20,999 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-16 12:52:21,008 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c13d91-a420-4314-b015-72aa0fb7f96d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-11-16 12:52:21,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:52:21,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c13d91-a420-4314-b015-72aa0fb7f96d/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:52:21,009 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c13d91-a420-4314-b015-72aa0fb7f96d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:52:21,013 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 12:52:21,014 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 12:52:21,027 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c13d91-a420-4314-b015-72aa0fb7f96d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-11-16 12:52:21,038 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 12:52:21,038 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-16 12:52:21,048 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c13d91-a420-4314-b015-72aa0fb7f96d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-11-16 12:52:21,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:52:21,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c13d91-a420-4314-b015-72aa0fb7f96d/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:52:21,050 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c13d91-a420-4314-b015-72aa0fb7f96d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:52:21,060 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 12:52:21,060 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 12:52:21,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c13d91-a420-4314-b015-72aa0fb7f96d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-11-16 12:52:21,098 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c13d91-a420-4314-b015-72aa0fb7f96d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-11-16 12:52:21,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:52:21,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c13d91-a420-4314-b015-72aa0fb7f96d/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:52:21,100 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c13d91-a420-4314-b015-72aa0fb7f96d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:52:21,104 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-16 12:52:21,104 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 12:52:21,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c13d91-a420-4314-b015-72aa0fb7f96d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-11-16 12:52:21,142 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-16 12:52:21,151 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c13d91-a420-4314-b015-72aa0fb7f96d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-11-16 12:52:21,151 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 12:52:21,151 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 12:52:21,151 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 12:52:21,152 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 12:52:21,152 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-16 12:52:21,152 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:52:21,152 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 12:52:21,152 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 12:52:21,152 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.11.c_Iteration2_Loop [2022-11-16 12:52:21,152 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 12:52:21,152 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 12:52:21,153 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:52:21,159 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:52:21,164 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:52:21,311 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 12:52:21,311 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-16 12:52:21,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:52:21,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c13d91-a420-4314-b015-72aa0fb7f96d/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:52:21,319 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c13d91-a420-4314-b015-72aa0fb7f96d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:52:21,324 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 [2022-11-16 12:52:21,337 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 12:52:21,337 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 12:52:21,337 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 12:52:21,337 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 12:52:21,340 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-16 12:52:21,340 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-16 12:52:21,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c13d91-a420-4314-b015-72aa0fb7f96d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-11-16 12:52:21,351 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 12:52:21,359 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c13d91-a420-4314-b015-72aa0fb7f96d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-11-16 12:52:21,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:52:21,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c13d91-a420-4314-b015-72aa0fb7f96d/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:52:21,361 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c13d91-a420-4314-b015-72aa0fb7f96d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:52:21,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c13d91-a420-4314-b015-72aa0fb7f96d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-11-16 12:52:21,365 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 [2022-11-16 12:52:21,377 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 12:52:21,378 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 12:52:21,378 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 12:52:21,378 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 12:52:21,380 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-16 12:52:21,380 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-16 12:52:21,391 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 12:52:21,395 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c13d91-a420-4314-b015-72aa0fb7f96d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-11-16 12:52:21,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:52:21,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c13d91-a420-4314-b015-72aa0fb7f96d/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:52:21,397 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c13d91-a420-4314-b015-72aa0fb7f96d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:52:21,406 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c13d91-a420-4314-b015-72aa0fb7f96d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-11-16 12:52:21,406 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 [2022-11-16 12:52:21,422 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 12:52:21,422 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 12:52:21,423 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 12:52:21,423 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-11-16 12:52:21,423 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 12:52:21,425 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-11-16 12:52:21,425 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 12:52:21,435 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-16 12:52:21,464 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-16 12:52:21,464 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-16 12:52:21,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:52:21,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c13d91-a420-4314-b015-72aa0fb7f96d/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:52:21,470 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c13d91-a420-4314-b015-72aa0fb7f96d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:52:21,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c13d91-a420-4314-b015-72aa0fb7f96d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-11-16 12:52:21,477 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-16 12:52:21,477 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-16 12:52:21,477 INFO L513 LassoAnalysis]: Proved termination. [2022-11-16 12:52:21,477 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2022-11-16 12:52:21,482 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c13d91-a420-4314-b015-72aa0fb7f96d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-11-16 12:52:21,483 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-16 12:52:21,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:52:21,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:21,509 INFO L263 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 12:52:21,510 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:52:21,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:52:21,518 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-16 12:52:21,519 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:52:21,625 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c13d91-a420-4314-b015-72aa0fb7f96d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-11-16 12:52:21,639 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c13d91-a420-4314-b015-72aa0fb7f96d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-11-16 12:52:21,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:52:21,657 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 [2022-11-16 12:52:21,657 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 14 transitions. cyclomatic complexity: 6 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) [2022-11-16 12:52:21,730 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 14 transitions. cyclomatic complexity: 6. 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 51 transitions. Complement of second has 9 states. [2022-11-16 12:52:21,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2022-11-16 12:52:21,731 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) [2022-11-16 12:52:21,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 19 transitions. [2022-11-16 12:52:21,732 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 19 transitions. Stem has 3 letters. Loop has 3 letters. [2022-11-16 12:52:21,733 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 12:52:21,733 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 19 transitions. Stem has 6 letters. Loop has 3 letters. [2022-11-16 12:52:21,734 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 12:52:21,734 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 19 transitions. Stem has 3 letters. Loop has 6 letters. [2022-11-16 12:52:21,734 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 12:52:21,734 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 51 transitions. [2022-11-16 12:52:21,737 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-16 12:52:21,737 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 0 states and 0 transitions. [2022-11-16 12:52:21,737 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-16 12:52:21,737 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-16 12:52:21,738 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-16 12:52:21,738 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:52:21,738 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 12:52:21,738 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 12:52:21,738 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 12:52:21,738 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-16 12:52:21,738 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-11-16 12:52:21,738 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-16 12:52:21,739 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-11-16 12:52:21,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 16.11 12:52:21 BoogieIcfgContainer [2022-11-16 12:52:21,746 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-16 12:52:21,747 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 12:52:21,747 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 12:52:21,747 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 12:52:21,747 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:52:19" (3/4) ... [2022-11-16 12:52:21,750 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-16 12:52:21,750 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 12:52:21,751 INFO L158 Benchmark]: Toolchain (without parser) took 3051.64ms. Allocated memory was 111.1MB in the beginning and 134.2MB in the end (delta: 23.1MB). Free memory was 80.3MB in the beginning and 104.0MB in the end (delta: -23.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:52:21,751 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 111.1MB. Free memory was 64.0MB in the beginning and 63.9MB in the end (delta: 92.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:52:21,752 INFO L158 Benchmark]: CACSL2BoogieTranslator took 219.75ms. Allocated memory is still 111.1MB. Free memory was 80.0MB in the beginning and 88.6MB in the end (delta: -8.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-16 12:52:21,752 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.19ms. Allocated memory is still 111.1MB. Free memory was 88.6MB in the beginning and 87.1MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:52:21,752 INFO L158 Benchmark]: Boogie Preprocessor took 18.95ms. Allocated memory is still 111.1MB. Free memory was 87.1MB in the beginning and 86.6MB in the end (delta: 510.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:52:21,753 INFO L158 Benchmark]: RCFGBuilder took 230.51ms. Allocated memory is still 111.1MB. Free memory was 86.0MB in the beginning and 77.7MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-16 12:52:21,753 INFO L158 Benchmark]: BuchiAutomizer took 2544.22ms. Allocated memory was 111.1MB in the beginning and 134.2MB in the end (delta: 23.1MB). Free memory was 77.7MB in the beginning and 104.4MB in the end (delta: -26.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:52:21,754 INFO L158 Benchmark]: Witness Printer took 3.42ms. Allocated memory is still 134.2MB. Free memory was 104.4MB in the beginning and 104.0MB in the end (delta: 466.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:52:21,757 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 111.1MB. Free memory was 64.0MB in the beginning and 63.9MB in the end (delta: 92.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 219.75ms. Allocated memory is still 111.1MB. Free memory was 80.0MB in the beginning and 88.6MB in the end (delta: -8.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.19ms. Allocated memory is still 111.1MB. Free memory was 88.6MB in the beginning and 87.1MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 18.95ms. Allocated memory is still 111.1MB. Free memory was 87.1MB in the beginning and 86.6MB in the end (delta: 510.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 230.51ms. Allocated memory is still 111.1MB. Free memory was 86.0MB in the beginning and 77.7MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 2544.22ms. Allocated memory was 111.1MB in the beginning and 134.2MB in the end (delta: 23.1MB). Free memory was 77.7MB in the beginning and 104.4MB in the end (delta: -26.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.42ms. Allocated memory is still 134.2MB. Free memory was 104.4MB in the beginning and 104.0MB in the end (delta: 466.2kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (0 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function x and consists of 5 locations. One deterministic module has affine ranking function y and consists of 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.4s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 14 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12 mSDsluCounter, 14 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 35 IncrementalHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 8 mSDtfsCounter, 35 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital24 mio100 ax150 hnf100 lsp66 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq132 hnf96 smp89 dnf133 smp96 tf106 neg98 sie121 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 75ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-11-16 12:52:21,775 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91c13d91-a420-4314-b015-72aa0fb7f96d/bin/uautomizer-tPACEb0tL8/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