./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-bwb/not-03.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7d71d9-5929-46d2-850d-2b6c59b0da78/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7d71d9-5929-46d2-850d-2b6c59b0da78/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7d71d9-5929-46d2-850d-2b6c59b0da78/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7d71d9-5929-46d2-850d-2b6c59b0da78/bin/uautomizer-J5u9QxTXDZ/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-bwb/not-03.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7d71d9-5929-46d2-850d-2b6c59b0da78/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7d71d9-5929-46d2-850d-2b6c59b0da78/bin/uautomizer-J5u9QxTXDZ --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 285cff35709023846a1bd954129c82df7d866d184fde57b9e9aa336ce7a9f9b8 --- 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-dbf71c6-m [2022-10-17 10:20:20,296 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:20:20,298 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:20:20,343 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:20:20,344 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:20:20,347 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:20:20,350 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:20:20,355 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:20:20,358 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:20:20,363 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:20:20,364 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:20:20,367 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:20:20,368 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:20:20,370 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:20:20,372 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:20:20,374 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:20:20,375 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:20:20,376 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:20:20,379 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:20:20,386 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:20:20,388 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:20:20,390 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:20:20,393 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:20:20,394 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:20:20,404 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:20:20,404 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:20:20,405 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:20:20,407 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:20:20,408 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:20:20,409 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:20:20,410 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:20:20,411 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:20:20,415 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:20:20,416 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:20:20,417 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:20:20,418 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:20:20,418 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:20:20,419 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:20:20,419 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:20:20,420 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:20:20,421 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:20:20,422 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7d71d9-5929-46d2-850d-2b6c59b0da78/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-10-17 10:20:20,471 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:20:20,471 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:20:20,472 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:20:20,472 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:20:20,473 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:20:20,473 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:20:20,474 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:20:20,474 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-10-17 10:20:20,474 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-10-17 10:20:20,474 INFO L138 SettingsManager]: * Use old map elimination=false [2022-10-17 10:20:20,475 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-10-17 10:20:20,476 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-10-17 10:20:20,476 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-10-17 10:20:20,476 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:20:20,476 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-17 10:20:20,476 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:20:20,477 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:20:20,477 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-10-17 10:20:20,477 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-10-17 10:20:20,477 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-10-17 10:20:20,477 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:20:20,478 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-10-17 10:20:20,478 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:20:20,479 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-10-17 10:20:20,480 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:20:20,480 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:20:20,480 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:20:20,480 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:20:20,482 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-10-17 10:20:20,482 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_db7d71d9-5929-46d2-850d-2b6c59b0da78/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7d71d9-5929-46d2-850d-2b6c59b0da78/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 285cff35709023846a1bd954129c82df7d866d184fde57b9e9aa336ce7a9f9b8 [2022-10-17 10:20:20,819 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:20:20,851 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:20:20,854 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:20:20,855 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:20:20,856 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:20:20,857 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7d71d9-5929-46d2-850d-2b6c59b0da78/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/termination-bwb/not-03.c [2022-10-17 10:20:20,932 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7d71d9-5929-46d2-850d-2b6c59b0da78/bin/uautomizer-J5u9QxTXDZ/data/4ca432541/d2668955a581436f8f902612560698a1/FLAG6f7657579 [2022-10-17 10:20:21,465 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:20:21,466 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7d71d9-5929-46d2-850d-2b6c59b0da78/sv-benchmarks/c/termination-bwb/not-03.c [2022-10-17 10:20:21,471 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7d71d9-5929-46d2-850d-2b6c59b0da78/bin/uautomizer-J5u9QxTXDZ/data/4ca432541/d2668955a581436f8f902612560698a1/FLAG6f7657579 [2022-10-17 10:20:21,874 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7d71d9-5929-46d2-850d-2b6c59b0da78/bin/uautomizer-J5u9QxTXDZ/data/4ca432541/d2668955a581436f8f902612560698a1 [2022-10-17 10:20:21,876 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:20:21,877 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:20:21,892 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:20:21,893 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:20:21,896 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:20:21,897 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:20:21" (1/1) ... [2022-10-17 10:20:21,897 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69f71c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:20:21, skipping insertion in model container [2022-10-17 10:20:21,898 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:20:21" (1/1) ... [2022-10-17 10:20:21,903 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:20:21,911 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:20:22,085 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:20:22,088 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:20:22,101 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:20:22,112 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:20:22,113 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:20:22 WrapperNode [2022-10-17 10:20:22,113 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:20:22,114 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:20:22,114 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:20:22,115 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:20:22,122 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:20:22" (1/1) ... [2022-10-17 10:20:22,127 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:20:22" (1/1) ... [2022-10-17 10:20:22,142 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 20 [2022-10-17 10:20:22,143 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:20:22,143 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:20:22,144 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:20:22,144 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:20:22,152 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:20:22" (1/1) ... [2022-10-17 10:20:22,153 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:20:22" (1/1) ... [2022-10-17 10:20:22,153 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:20:22" (1/1) ... [2022-10-17 10:20:22,153 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:20:22" (1/1) ... [2022-10-17 10:20:22,155 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:20:22" (1/1) ... [2022-10-17 10:20:22,158 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:20:22" (1/1) ... [2022-10-17 10:20:22,159 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:20:22" (1/1) ... [2022-10-17 10:20:22,160 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:20:22" (1/1) ... [2022-10-17 10:20:22,161 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:20:22,162 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:20:22,162 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:20:22,162 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:20:22,163 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:20:22" (1/1) ... [2022-10-17 10:20:22,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:20:22,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7d71d9-5929-46d2-850d-2b6c59b0da78/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:20:22,194 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7d71d9-5929-46d2-850d-2b6c59b0da78/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:20:22,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7d71d9-5929-46d2-850d-2b6c59b0da78/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-10-17 10:20:22,256 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:20:22,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:20:22,314 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:20:22,317 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:20:22,409 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:20:22,415 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:20:22,415 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-17 10:20:22,417 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:20:22 BoogieIcfgContainer [2022-10-17 10:20:22,417 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:20:22,418 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-10-17 10:20:22,419 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-10-17 10:20:22,422 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-10-17 10:20:22,423 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-10-17 10:20:22,423 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 17.10 10:20:21" (1/3) ... [2022-10-17 10:20:22,424 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5900a2b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.10 10:20:22, skipping insertion in model container [2022-10-17 10:20:22,424 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-10-17 10:20:22,424 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:20:22" (2/3) ... [2022-10-17 10:20:22,425 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5900a2b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.10 10:20:22, skipping insertion in model container [2022-10-17 10:20:22,425 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-10-17 10:20:22,425 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:20:22" (3/3) ... [2022-10-17 10:20:22,426 INFO L332 chiAutomizerObserver]: Analyzing ICFG not-03.c [2022-10-17 10:20:22,481 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-10-17 10:20:22,481 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-10-17 10:20:22,481 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-10-17 10:20:22,481 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-10-17 10:20:22,482 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-10-17 10:20:22,482 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-10-17 10:20:22,482 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-10-17 10:20:22,482 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-10-17 10:20:22,486 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) [2022-10-17 10:20:22,504 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-10-17 10:20:22,504 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:20:22,504 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:20:22,510 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-10-17 10:20:22,510 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-10-17 10:20:22,511 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-10-17 10:20:22,511 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) [2022-10-17 10:20:22,512 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-10-17 10:20:22,512 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:20:22,512 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:20:22,513 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-10-17 10:20:22,513 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-10-17 10:20:22,520 INFO L748 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 7#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_~a~0#1, main_~x~0#1, main_~y~0#1;havoc main_~a~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; 6#L18-1true [2022-10-17 10:20:22,521 INFO L750 eck$LassoCheckResult]: Loop: 6#L18-1true assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 4#L18true assume !(main_~x~0#1 > main_~y~0#1);main_~x~0#1 := main_~x~0#1 - 1; 6#L18-1true [2022-10-17 10:20:22,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:20:22,527 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-10-17 10:20:22,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:20:22,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579055157] [2022-10-17 10:20:22,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:20:22,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:20:22,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:20:22,610 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:20:22,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:20:22,628 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:20:22,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:20:22,631 INFO L85 PathProgramCache]: Analyzing trace with hash 1324, now seen corresponding path program 1 times [2022-10-17 10:20:22,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:20:22,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720584047] [2022-10-17 10:20:22,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:20:22,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:20:22,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:20:22,646 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:20:22,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:20:22,652 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:20:22,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:20:22,654 INFO L85 PathProgramCache]: Analyzing trace with hash 925806, now seen corresponding path program 1 times [2022-10-17 10:20:22,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:20:22,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065062366] [2022-10-17 10:20:22,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:20:22,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:20:22,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:20:22,663 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:20:22,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:20:22,670 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:20:22,782 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:20:22,796 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:20:22,797 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:20:22,797 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:20:22,797 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-10-17 10:20:22,797 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:20:22,797 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:20:22,798 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:20:22,798 INFO L133 ssoRankerPreferences]: Filename of dumped script: not-03.c_Iteration1_Loop [2022-10-17 10:20:22,798 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:20:22,798 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:20:22,815 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:20:22,867 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:20:22,868 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-10-17 10:20:22,870 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:20:22,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7d71d9-5929-46d2-850d-2b6c59b0da78/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:20:22,872 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7d71d9-5929-46d2-850d-2b6c59b0da78/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:20:22,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7d71d9-5929-46d2-850d-2b6c59b0da78/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-10-17 10:20:22,888 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 10:20:22,888 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:20:22,972 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7d71d9-5929-46d2-850d-2b6c59b0da78/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-10-17 10:20:22,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:20:22,973 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7d71d9-5929-46d2-850d-2b6c59b0da78/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:20:22,975 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7d71d9-5929-46d2-850d-2b6c59b0da78/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:20:22,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7d71d9-5929-46d2-850d-2b6c59b0da78/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-10-17 10:20:22,980 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-10-17 10:20:22,980 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:20:23,033 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-10-17 10:20:23,038 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7d71d9-5929-46d2-850d-2b6c59b0da78/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-10-17 10:20:23,039 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:20:23,039 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:20:23,039 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:20:23,039 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:20:23,039 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-10-17 10:20:23,039 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:20:23,040 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:20:23,040 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:20:23,040 INFO L133 ssoRankerPreferences]: Filename of dumped script: not-03.c_Iteration1_Loop [2022-10-17 10:20:23,040 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:20:23,040 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:20:23,042 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:20:23,094 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:20:23,099 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-10-17 10:20:23,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:20:23,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7d71d9-5929-46d2-850d-2b6c59b0da78/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:20:23,109 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7d71d9-5929-46d2-850d-2b6c59b0da78/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:20:23,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7d71d9-5929-46d2-850d-2b6c59b0da78/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-10-17 10:20:23,127 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 [2022-10-17 10:20:23,137 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:20:23,137 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:20:23,138 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:20:23,138 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:20:23,138 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:20:23,141 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:20:23,142 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:20:23,152 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-10-17 10:20:23,160 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-10-17 10:20:23,160 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-10-17 10:20:23,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:20:23,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7d71d9-5929-46d2-850d-2b6c59b0da78/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:20:23,163 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7d71d9-5929-46d2-850d-2b6c59b0da78/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:20:23,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7d71d9-5929-46d2-850d-2b6c59b0da78/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-10-17 10:20:23,173 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-10-17 10:20:23,173 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-10-17 10:20:23,174 INFO L513 LassoAnalysis]: Proved termination. [2022-10-17 10:20:23,174 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 [] [2022-10-17 10:20:23,208 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7d71d9-5929-46d2-850d-2b6c59b0da78/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-10-17 10:20:23,212 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-10-17 10:20:23,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:20:23,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:20:23,253 WARN L261 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-17 10:20:23,254 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:20:23,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:20:23,266 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-17 10:20:23,267 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:20:23,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:20:23,316 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7d71d9-5929-46d2-850d-2b6c59b0da78/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2022-10-17 10:20:23,350 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 [2022-10-17 10:20:23,351 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) [2022-10-17 10:20:23,399 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 34 states and 46 transitions. Complement of second has 7 states. [2022-10-17 10:20:23,401 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 [2022-10-17 10:20:23,406 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) [2022-10-17 10:20:23,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 28 transitions. [2022-10-17 10:20:23,408 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 2 letters. Loop has 2 letters. [2022-10-17 10:20:23,409 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:20:23,409 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 4 letters. Loop has 2 letters. [2022-10-17 10:20:23,409 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:20:23,409 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 2 letters. Loop has 4 letters. [2022-10-17 10:20:23,410 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:20:23,410 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 46 transitions. [2022-10-17 10:20:23,414 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-10-17 10:20:23,417 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 11 states and 14 transitions. [2022-10-17 10:20:23,418 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2022-10-17 10:20:23,418 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2022-10-17 10:20:23,419 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 14 transitions. [2022-10-17 10:20:23,419 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-10-17 10:20:23,419 INFO L218 hiAutomatonCegarLoop]: Abstraction has 11 states and 14 transitions. [2022-10-17 10:20:23,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 14 transitions. [2022-10-17 10:20:23,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2022-10-17 10:20:23,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.3) internal successors, (13), 9 states have internal predecessors, (13), 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) [2022-10-17 10:20:23,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2022-10-17 10:20:23,445 INFO L240 hiAutomatonCegarLoop]: Abstraction has 10 states and 13 transitions. [2022-10-17 10:20:23,445 INFO L428 stractBuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2022-10-17 10:20:23,445 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-10-17 10:20:23,445 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 13 transitions. [2022-10-17 10:20:23,446 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-10-17 10:20:23,446 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:20:23,446 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:20:23,446 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-10-17 10:20:23,446 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-10-17 10:20:23,447 INFO L748 eck$LassoCheckResult]: Stem: 88#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 89#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_~a~0#1, main_~x~0#1, main_~y~0#1;havoc main_~a~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; 90#L18-1 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 81#L18 [2022-10-17 10:20:23,447 INFO L750 eck$LassoCheckResult]: Loop: 81#L18 assume main_~x~0#1 > main_~y~0#1; 82#L19 assume main_~x~0#1 >= 0;assume main_~y~0#1 < 0; 86#L18-1 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 81#L18 [2022-10-17 10:20:23,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:20:23,448 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2022-10-17 10:20:23,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:20:23,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739554381] [2022-10-17 10:20:23,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:20:23,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:20:23,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:20:23,453 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:20:23,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:20:23,456 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:20:23,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:20:23,457 INFO L85 PathProgramCache]: Analyzing trace with hash 43783, now seen corresponding path program 1 times [2022-10-17 10:20:23,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:20:23,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017790475] [2022-10-17 10:20:23,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:20:23,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:20:23,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:20:23,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:20:23,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:20:23,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017790475] [2022-10-17 10:20:23,498 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017790475] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:20:23,498 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:20:23,499 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 10:20:23,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848536706] [2022-10-17 10:20:23,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:20:23,502 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-10-17 10:20:23,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:20:23,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:20:23,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:20:23,506 INFO L87 Difference]: Start difference. First operand 10 states and 13 transitions. cyclomatic complexity: 5 Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:20:23,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:20:23,515 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2022-10-17 10:20:23,515 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 11 transitions. [2022-10-17 10:20:23,516 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-10-17 10:20:23,516 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 0 states and 0 transitions. [2022-10-17 10:20:23,516 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-10-17 10:20:23,516 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-10-17 10:20:23,516 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-10-17 10:20:23,517 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:20:23,517 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-17 10:20:23,517 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-17 10:20:23,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:20:23,518 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-17 10:20:23,518 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-10-17 10:20:23,519 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-10-17 10:20:23,519 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-10-17 10:20:23,519 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-10-17 10:20:23,527 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 17.10 10:20:23 BoogieIcfgContainer [2022-10-17 10:20:23,527 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-10-17 10:20:23,527 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 10:20:23,528 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 10:20:23,528 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 10:20:23,528 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:20:22" (3/4) ... [2022-10-17 10:20:23,531 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-10-17 10:20:23,531 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 10:20:23,532 INFO L158 Benchmark]: Toolchain (without parser) took 1654.45ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 61.3MB in the beginning and 79.4MB in the end (delta: -18.0MB). Peak memory consumption was 1.8MB. Max. memory is 16.1GB. [2022-10-17 10:20:23,533 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 98.6MB. Free memory is still 77.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 10:20:23,533 INFO L158 Benchmark]: CACSL2BoogieTranslator took 221.29ms. Allocated memory is still 98.6MB. Free memory was 61.1MB in the beginning and 74.4MB in the end (delta: -13.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-10-17 10:20:23,534 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.63ms. Allocated memory is still 98.6MB. Free memory was 74.4MB in the beginning and 73.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 10:20:23,535 INFO L158 Benchmark]: Boogie Preprocessor took 17.56ms. Allocated memory is still 98.6MB. Free memory was 73.0MB in the beginning and 72.1MB in the end (delta: 833.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 10:20:23,535 INFO L158 Benchmark]: RCFGBuilder took 255.77ms. Allocated memory is still 98.6MB. Free memory was 71.9MB in the beginning and 63.7MB in the end (delta: 8.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-10-17 10:20:23,536 INFO L158 Benchmark]: BuchiAutomizer took 1108.50ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 63.7MB in the beginning and 79.7MB in the end (delta: -16.0MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. [2022-10-17 10:20:23,536 INFO L158 Benchmark]: Witness Printer took 3.80ms. Allocated memory is still 119.5MB. Free memory was 79.7MB in the beginning and 79.4MB in the end (delta: 319.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 10:20:23,540 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 98.6MB. Free memory is still 77.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 221.29ms. Allocated memory is still 98.6MB. Free memory was 61.1MB in the beginning and 74.4MB in the end (delta: -13.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.63ms. Allocated memory is still 98.6MB. Free memory was 74.4MB in the beginning and 73.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.56ms. Allocated memory is still 98.6MB. Free memory was 73.0MB in the beginning and 72.1MB in the end (delta: 833.4kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 255.77ms. Allocated memory is still 98.6MB. Free memory was 71.9MB in the beginning and 63.7MB in the end (delta: 8.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1108.50ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 63.7MB in the beginning and 79.7MB in the end (delta: -16.0MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. * Witness Printer took 3.80ms. Allocated memory is still 119.5MB. Free memory was 79.7MB in the beginning and 79.4MB in the end (delta: 319.8kB). 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 (1 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function x and consists of 5 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.0s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 0.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 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 [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 12 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11 mSDsluCounter, 24 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 18 IncrementalHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 14 mSDtfsCounter, 18 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital14 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq142 hnf94 smp100 dnf100 smp100 tf110 neg95 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 74ms VariablesStem: 0 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-10-17 10:20:23,588 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db7d71d9-5929-46d2-850d-2b6c59b0da78/bin/uautomizer-J5u9QxTXDZ/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