./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-bwb/not-05.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b5237d83 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_8f854135-39a4-4785-b2a5-46d60eae27b7/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f854135-39a4-4785-b2a5-46d60eae27b7/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f854135-39a4-4785-b2a5-46d60eae27b7/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f854135-39a4-4785-b2a5-46d60eae27b7/bin/uautomizer-vX5HgA9Q3a/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-bwb/not-05.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f854135-39a4-4785-b2a5-46d60eae27b7/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f854135-39a4-4785-b2a5-46d60eae27b7/bin/uautomizer-vX5HgA9Q3a --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 b2ef5d64331f88f199e9d82c5930f7a3417c9de68d5cd8bf6a20a0505cf19315 --- 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-b5237d8 [2022-11-21 16:19:52,031 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 16:19:52,035 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 16:19:52,082 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 16:19:52,087 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 16:19:52,089 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 16:19:52,091 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 16:19:52,105 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 16:19:52,107 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 16:19:52,108 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 16:19:52,109 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 16:19:52,112 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 16:19:52,113 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 16:19:52,116 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 16:19:52,118 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 16:19:52,120 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 16:19:52,122 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 16:19:52,127 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 16:19:52,129 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 16:19:52,130 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 16:19:52,135 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 16:19:52,136 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 16:19:52,137 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 16:19:52,144 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 16:19:52,147 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 16:19:52,147 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 16:19:52,147 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 16:19:52,148 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 16:19:52,149 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 16:19:52,150 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 16:19:52,150 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 16:19:52,151 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 16:19:52,151 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 16:19:52,152 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 16:19:52,153 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 16:19:52,153 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 16:19:52,154 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 16:19:52,154 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 16:19:52,154 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 16:19:52,155 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 16:19:52,156 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 16:19:52,157 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f854135-39a4-4785-b2a5-46d60eae27b7/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-11-21 16:19:52,180 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 16:19:52,180 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 16:19:52,180 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 16:19:52,181 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 16:19:52,182 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 16:19:52,182 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 16:19:52,182 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 16:19:52,182 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-21 16:19:52,183 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-21 16:19:52,183 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-21 16:19:52,183 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-21 16:19:52,183 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-21 16:19:52,183 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-21 16:19:52,183 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 16:19:52,184 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 16:19:52,184 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 16:19:52,184 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 16:19:52,184 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-21 16:19:52,184 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-21 16:19:52,185 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-21 16:19:52,185 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 16:19:52,185 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-21 16:19:52,185 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 16:19:52,185 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-21 16:19:52,185 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 16:19:52,186 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 16:19:52,186 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 16:19:52,186 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 16:19:52,187 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-21 16:19:52,187 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_8f854135-39a4-4785-b2a5-46d60eae27b7/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f854135-39a4-4785-b2a5-46d60eae27b7/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b2ef5d64331f88f199e9d82c5930f7a3417c9de68d5cd8bf6a20a0505cf19315 [2022-11-21 16:19:52,484 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 16:19:52,522 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 16:19:52,525 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 16:19:52,527 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 16:19:52,528 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 16:19:52,529 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f854135-39a4-4785-b2a5-46d60eae27b7/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/termination-bwb/not-05.c [2022-11-21 16:19:55,620 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 16:19:55,816 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 16:19:55,817 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f854135-39a4-4785-b2a5-46d60eae27b7/sv-benchmarks/c/termination-bwb/not-05.c [2022-11-21 16:19:55,824 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f854135-39a4-4785-b2a5-46d60eae27b7/bin/uautomizer-vX5HgA9Q3a/data/8c1f3e3c0/352d9f5785674aa5a68414e4fa7ab39c/FLAG31da455d6 [2022-11-21 16:19:55,840 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f854135-39a4-4785-b2a5-46d60eae27b7/bin/uautomizer-vX5HgA9Q3a/data/8c1f3e3c0/352d9f5785674aa5a68414e4fa7ab39c [2022-11-21 16:19:55,843 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 16:19:55,845 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 16:19:55,848 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 16:19:55,849 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 16:19:55,852 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 16:19:55,853 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:19:55" (1/1) ... [2022-11-21 16:19:55,855 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7dc4ead1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:19:55, skipping insertion in model container [2022-11-21 16:19:55,855 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:19:55" (1/1) ... [2022-11-21 16:19:55,863 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 16:19:55,877 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 16:19:56,086 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:19:56,092 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 16:19:56,109 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:19:56,124 INFO L208 MainTranslator]: Completed translation [2022-11-21 16:19:56,125 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:19:56 WrapperNode [2022-11-21 16:19:56,125 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 16:19:56,127 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 16:19:56,127 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 16:19:56,127 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 16:19:56,135 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:19:56" (1/1) ... [2022-11-21 16:19:56,143 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:19:56" (1/1) ... [2022-11-21 16:19:56,159 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 23 [2022-11-21 16:19:56,160 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 16:19:56,161 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 16:19:56,161 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 16:19:56,161 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 16:19:56,170 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:19:56" (1/1) ... [2022-11-21 16:19:56,171 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:19:56" (1/1) ... [2022-11-21 16:19:56,172 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:19:56" (1/1) ... [2022-11-21 16:19:56,172 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:19:56" (1/1) ... [2022-11-21 16:19:56,175 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:19:56" (1/1) ... [2022-11-21 16:19:56,181 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:19:56" (1/1) ... [2022-11-21 16:19:56,182 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:19:56" (1/1) ... [2022-11-21 16:19:56,183 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:19:56" (1/1) ... [2022-11-21 16:19:56,184 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 16:19:56,186 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 16:19:56,186 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 16:19:56,187 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 16:19:56,187 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:19:56" (1/1) ... [2022-11-21 16:19:56,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 16:19:56,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f854135-39a4-4785-b2a5-46d60eae27b7/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:19:56,223 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f854135-39a4-4785-b2a5-46d60eae27b7/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 16:19:56,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f854135-39a4-4785-b2a5-46d60eae27b7/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-21 16:19:56,277 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 16:19:56,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 16:19:56,339 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 16:19:56,342 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 16:19:56,437 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 16:19:56,444 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 16:19:56,444 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-21 16:19:56,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:19:56 BoogieIcfgContainer [2022-11-21 16:19:56,448 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 16:19:56,451 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-21 16:19:56,451 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-21 16:19:56,455 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-21 16:19:56,456 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-21 16:19:56,456 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.11 04:19:55" (1/3) ... [2022-11-21 16:19:56,458 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@bf70e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.11 04:19:56, skipping insertion in model container [2022-11-21 16:19:56,458 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-21 16:19:56,458 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:19:56" (2/3) ... [2022-11-21 16:19:56,460 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@bf70e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.11 04:19:56, skipping insertion in model container [2022-11-21 16:19:56,460 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-21 16:19:56,461 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:19:56" (3/3) ... [2022-11-21 16:19:56,467 INFO L332 chiAutomizerObserver]: Analyzing ICFG not-05.c [2022-11-21 16:19:56,541 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-21 16:19:56,541 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-21 16:19:56,542 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-21 16:19:56,542 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-21 16:19:56,542 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-21 16:19:56,542 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-21 16:19:56,542 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-21 16:19:56,543 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-21 16:19:56,547 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:19:56,565 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-21 16:19:56,565 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-21 16:19:56,565 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-21 16:19:56,571 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-21 16:19:56,571 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-21 16:19:56,571 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-21 16:19:56,572 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:19:56,573 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-21 16:19:56,573 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-21 16:19:56,573 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-21 16:19:56,573 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-21 16:19:56,574 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-21 16:19:56,582 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_#t~nondet2#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;main_~a~0#1 := 0; 6#L18-2true [2022-11-21 16:19:56,582 INFO L750 eck$LassoCheckResult]: Loop: 6#L18-2true assume !!(main_~y~0#1 > 0); 4#L18true assume !(main_~x~0#1 > 0);main_~y~0#1 := main_~y~0#1 - 1; 6#L18-2true [2022-11-21 16:19:56,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:19:56,588 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-11-21 16:19:56,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:19:56,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557218274] [2022-11-21 16:19:56,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:19:56,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:19:56,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:19:56,676 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 16:19:56,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:19:56,694 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 16:19:56,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:19:56,697 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 1 times [2022-11-21 16:19:56,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:19:56,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364348468] [2022-11-21 16:19:56,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:19:56,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:19:56,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:19:56,706 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 16:19:56,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:19:56,710 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 16:19:56,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:19:56,712 INFO L85 PathProgramCache]: Analyzing trace with hash 925800, now seen corresponding path program 1 times [2022-11-21 16:19:56,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:19:56,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937135358] [2022-11-21 16:19:56,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:19:56,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:19:56,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:19:56,719 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 16:19:56,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:19:56,724 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 16:19:56,788 INFO L210 LassoAnalysis]: Preferences: [2022-11-21 16:19:56,789 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-21 16:19:56,789 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-21 16:19:56,789 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-21 16:19:56,789 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-21 16:19:56,790 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 16:19:56,790 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-21 16:19:56,790 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-21 16:19:56,790 INFO L133 ssoRankerPreferences]: Filename of dumped script: not-05.c_Iteration1_Loop [2022-11-21 16:19:56,790 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-21 16:19:56,791 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-21 16:19:56,807 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 16:19:56,820 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 16:19:56,894 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-21 16:19:56,895 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-21 16:19:56,897 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 16:19:56,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f854135-39a4-4785-b2a5-46d60eae27b7/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:19:56,926 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f854135-39a4-4785-b2a5-46d60eae27b7/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 16:19:56,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f854135-39a4-4785-b2a5-46d60eae27b7/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-21 16:19:56,956 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-21 16:19:56,960 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 16:19:56,996 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-21 16:19:56,996 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=0} Honda state: {ULTIMATE.start_main_~x~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-21 16:19:57,006 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f854135-39a4-4785-b2a5-46d60eae27b7/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-21 16:19:57,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 16:19:57,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f854135-39a4-4785-b2a5-46d60eae27b7/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:19:57,008 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f854135-39a4-4785-b2a5-46d60eae27b7/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 16:19:57,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f854135-39a4-4785-b2a5-46d60eae27b7/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-21 16:19:57,016 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-21 16:19:57,017 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 16:19:57,048 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f854135-39a4-4785-b2a5-46d60eae27b7/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-21 16:19:57,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 16:19:57,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f854135-39a4-4785-b2a5-46d60eae27b7/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:19:57,050 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f854135-39a4-4785-b2a5-46d60eae27b7/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 16:19:57,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f854135-39a4-4785-b2a5-46d60eae27b7/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-21 16:19:57,059 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-21 16:19:57,059 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 16:19:57,108 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-21 16:19:57,118 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f854135-39a4-4785-b2a5-46d60eae27b7/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-21 16:19:57,119 INFO L210 LassoAnalysis]: Preferences: [2022-11-21 16:19:57,119 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-21 16:19:57,119 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-21 16:19:57,119 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-21 16:19:57,119 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-21 16:19:57,119 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 16:19:57,119 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-21 16:19:57,119 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-21 16:19:57,120 INFO L133 ssoRankerPreferences]: Filename of dumped script: not-05.c_Iteration1_Loop [2022-11-21 16:19:57,120 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-21 16:19:57,120 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-21 16:19:57,121 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 16:19:57,136 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 16:19:57,182 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-21 16:19:57,186 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-21 16:19:57,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 16:19:57,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f854135-39a4-4785-b2a5-46d60eae27b7/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:19:57,195 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f854135-39a4-4785-b2a5-46d60eae27b7/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 16:19:57,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f854135-39a4-4785-b2a5-46d60eae27b7/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-21 16:19:57,202 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 [2022-11-21 16:19:57,216 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 16:19:57,216 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-21 16:19:57,216 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 16:19:57,217 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 16:19:57,217 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 16:19:57,219 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-21 16:19:57,219 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-21 16:19:57,229 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 16:19:57,234 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f854135-39a4-4785-b2a5-46d60eae27b7/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-21 16:19:57,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 16:19:57,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f854135-39a4-4785-b2a5-46d60eae27b7/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:19:57,240 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f854135-39a4-4785-b2a5-46d60eae27b7/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 16:19:57,247 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 [2022-11-21 16:19:57,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f854135-39a4-4785-b2a5-46d60eae27b7/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-21 16:19:57,263 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 16:19:57,263 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-21 16:19:57,263 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 16:19:57,263 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 16:19:57,264 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 16:19:57,266 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-21 16:19:57,266 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-21 16:19:57,280 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-21 16:19:57,286 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-21 16:19:57,287 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-21 16:19:57,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 16:19:57,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f854135-39a4-4785-b2a5-46d60eae27b7/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:19:57,318 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f854135-39a4-4785-b2a5-46d60eae27b7/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 16:19:57,325 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-21 16:19:57,325 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-21 16:19:57,325 INFO L513 LassoAnalysis]: Proved termination. [2022-11-21 16:19:57,326 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 [] [2022-11-21 16:19:57,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f854135-39a4-4785-b2a5-46d60eae27b7/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-21 16:19:57,335 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f854135-39a4-4785-b2a5-46d60eae27b7/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-11-21 16:19:57,338 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-21 16:19:57,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:19:57,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:19:57,384 INFO L263 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-21 16:19:57,386 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:19:57,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:19:57,402 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-21 16:19:57,404 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:19:57,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:19:57,494 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 [2022-11-21 16:19:57,496 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) 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) [2022-11-21 16:19:57,532 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). 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 31 transitions. Complement of second has 8 states. [2022-11-21 16:19:57,534 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 [2022-11-21 16:19:57,539 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) [2022-11-21 16:19:57,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 12 transitions. [2022-11-21 16:19:57,541 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 2 letters. Loop has 2 letters. [2022-11-21 16:19:57,541 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-21 16:19:57,542 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 4 letters. Loop has 2 letters. [2022-11-21 16:19:57,542 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-21 16:19:57,542 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 2 letters. Loop has 4 letters. [2022-11-21 16:19:57,542 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-21 16:19:57,543 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 31 transitions. [2022-11-21 16:19:57,545 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-21 16:19:57,549 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 8 states and 11 transitions. [2022-11-21 16:19:57,550 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2022-11-21 16:19:57,550 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2022-11-21 16:19:57,551 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2022-11-21 16:19:57,551 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-21 16:19:57,551 INFO L218 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2022-11-21 16:19:57,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2022-11-21 16:19:57,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2022-11-21 16:19:57,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:19:57,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2022-11-21 16:19:57,577 INFO L240 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2022-11-21 16:19:57,577 INFO L428 stractBuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2022-11-21 16:19:57,578 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-21 16:19:57,578 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 11 transitions. [2022-11-21 16:19:57,578 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-21 16:19:57,579 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-21 16:19:57,579 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-21 16:19:57,579 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-11-21 16:19:57,579 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-21 16:19:57,580 INFO L748 eck$LassoCheckResult]: Stem: 75#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 76#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_#t~nondet2#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;main_~a~0#1 := 0; 78#L18-2 assume !!(main_~y~0#1 > 0); 71#L18 assume main_~x~0#1 > 0;main_#t~nondet2#1 := ~bitwiseComplement(main_~x~0#1);assume main_#t~nondet2#1 != main_~x~0#1;assume main_~x~0#1 >= 0 || main_#t~nondet2#1 > 0;main_~y~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 72#L18-2 [2022-11-21 16:19:57,580 INFO L750 eck$LassoCheckResult]: Loop: 72#L18-2 assume !!(main_~y~0#1 > 0); 77#L18 assume !(main_~x~0#1 > 0);main_~y~0#1 := main_~y~0#1 - 1; 72#L18-2 [2022-11-21 16:19:57,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:19:57,581 INFO L85 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 1 times [2022-11-21 16:19:57,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:19:57,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129505207] [2022-11-21 16:19:57,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:19:57,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:19:57,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:19:57,589 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 16:19:57,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:19:57,594 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 16:19:57,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:19:57,595 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 2 times [2022-11-21 16:19:57,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:19:57,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660224762] [2022-11-21 16:19:57,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:19:57,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:19:57,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:19:57,599 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 16:19:57,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:19:57,602 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 16:19:57,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:19:57,603 INFO L85 PathProgramCache]: Analyzing trace with hash 889692235, now seen corresponding path program 1 times [2022-11-21 16:19:57,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:19:57,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070495613] [2022-11-21 16:19:57,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:19:57,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:19:57,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:19:57,644 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:19:57,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:19:57,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070495613] [2022-11-21 16:19:57,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070495613] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:19:57,646 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:19:57,646 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:19:57,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412391896] [2022-11-21 16:19:57,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:19:57,671 INFO L210 LassoAnalysis]: Preferences: [2022-11-21 16:19:57,671 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-21 16:19:57,671 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-21 16:19:57,671 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-21 16:19:57,671 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-21 16:19:57,671 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 16:19:57,672 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-21 16:19:57,672 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-21 16:19:57,672 INFO L133 ssoRankerPreferences]: Filename of dumped script: not-05.c_Iteration2_Loop [2022-11-21 16:19:57,672 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-21 16:19:57,672 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-21 16:19:57,673 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 16:19:57,680 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 16:19:57,717 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-21 16:19:57,723 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-21 16:19:57,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 16:19:57,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f854135-39a4-4785-b2a5-46d60eae27b7/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:19:57,725 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f854135-39a4-4785-b2a5-46d60eae27b7/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 16:19:57,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f854135-39a4-4785-b2a5-46d60eae27b7/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-21 16:19:57,736 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-21 16:19:57,736 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 16:19:57,754 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f854135-39a4-4785-b2a5-46d60eae27b7/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2022-11-21 16:19:57,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 16:19:57,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f854135-39a4-4785-b2a5-46d60eae27b7/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:19:57,762 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f854135-39a4-4785-b2a5-46d60eae27b7/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 16:19:57,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f854135-39a4-4785-b2a5-46d60eae27b7/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-21 16:19:57,767 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-21 16:19:57,768 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 16:19:57,791 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-21 16:19:57,796 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f854135-39a4-4785-b2a5-46d60eae27b7/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-11-21 16:19:57,796 INFO L210 LassoAnalysis]: Preferences: [2022-11-21 16:19:57,796 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-21 16:19:57,796 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-21 16:19:57,796 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-21 16:19:57,797 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-21 16:19:57,797 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 16:19:57,797 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-21 16:19:57,797 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-21 16:19:57,797 INFO L133 ssoRankerPreferences]: Filename of dumped script: not-05.c_Iteration2_Loop [2022-11-21 16:19:57,797 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-21 16:19:57,797 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-21 16:19:57,798 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 16:19:57,820 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 16:19:57,848 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-21 16:19:57,848 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-21 16:19:57,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 16:19:57,849 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f854135-39a4-4785-b2a5-46d60eae27b7/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:19:57,851 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f854135-39a4-4785-b2a5-46d60eae27b7/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 16:19:57,860 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 [2022-11-21 16:19:57,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f854135-39a4-4785-b2a5-46d60eae27b7/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-11-21 16:19:57,873 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 16:19:57,873 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-21 16:19:57,874 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 16:19:57,874 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 16:19:57,874 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 16:19:57,876 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-21 16:19:57,876 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-21 16:19:57,888 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-21 16:19:57,892 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-21 16:19:57,892 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-21 16:19:57,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 16:19:57,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f854135-39a4-4785-b2a5-46d60eae27b7/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:19:57,895 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f854135-39a4-4785-b2a5-46d60eae27b7/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 16:19:57,908 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-21 16:19:57,908 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-21 16:19:57,908 INFO L513 LassoAnalysis]: Proved termination. [2022-11-21 16:19:57,909 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 [] [2022-11-21 16:19:57,912 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f854135-39a4-4785-b2a5-46d60eae27b7/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-11-21 16:19:57,918 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f854135-39a4-4785-b2a5-46d60eae27b7/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-11-21 16:19:57,919 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-21 16:19:57,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:19:57,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:19:57,941 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-21 16:19:57,941 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:19:57,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:19:57,952 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-21 16:19:57,952 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:19:57,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:19:57,968 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 [2022-11-21 16:19:57,969 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 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) [2022-11-21 16:19:57,998 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 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 12 states and 17 transitions. Complement of second has 5 states. [2022-11-21 16:19:57,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-11-21 16:19:58,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 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) [2022-11-21 16:19:58,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2022-11-21 16:19:58,000 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 2 letters. [2022-11-21 16:19:58,001 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-21 16:19:58,001 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 6 letters. Loop has 2 letters. [2022-11-21 16:19:58,001 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-21 16:19:58,001 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 4 letters. [2022-11-21 16:19:58,002 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-21 16:19:58,002 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 17 transitions. [2022-11-21 16:19:58,003 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-21 16:19:58,003 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 12 states and 17 transitions. [2022-11-21 16:19:58,003 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2022-11-21 16:19:58,003 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2022-11-21 16:19:58,004 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 17 transitions. [2022-11-21 16:19:58,004 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-21 16:19:58,004 INFO L218 hiAutomatonCegarLoop]: Abstraction has 12 states and 17 transitions. [2022-11-21 16:19:58,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 17 transitions. [2022-11-21 16:19:58,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2022-11-21 16:19:58,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 11 states have internal predecessors, (17), 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) [2022-11-21 16:19:58,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 17 transitions. [2022-11-21 16:19:58,006 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12 states and 17 transitions. [2022-11-21 16:19:58,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:19:58,011 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f854135-39a4-4785-b2a5-46d60eae27b7/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-11-21 16:19:58,024 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f854135-39a4-4785-b2a5-46d60eae27b7/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-11-21 16:19:58,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:19:58,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:19:58,030 INFO L87 Difference]: Start difference. First operand 12 states and 17 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 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) [2022-11-21 16:19:58,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:19:58,056 INFO L93 Difference]: Finished difference Result 11 states and 13 transitions. [2022-11-21 16:19:58,056 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 13 transitions. [2022-11-21 16:19:58,059 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-21 16:19:58,061 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 10 states and 12 transitions. [2022-11-21 16:19:58,062 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2022-11-21 16:19:58,063 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2022-11-21 16:19:58,063 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 12 transitions. [2022-11-21 16:19:58,064 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-21 16:19:58,064 INFO L218 hiAutomatonCegarLoop]: Abstraction has 10 states and 12 transitions. [2022-11-21 16:19:58,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 12 transitions. [2022-11-21 16:19:58,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 7. [2022-11-21 16:19:58,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 6 states have internal predecessors, (9), 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) [2022-11-21 16:19:58,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2022-11-21 16:19:58,066 INFO L240 hiAutomatonCegarLoop]: Abstraction has 7 states and 9 transitions. [2022-11-21 16:19:58,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:19:58,068 INFO L428 stractBuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2022-11-21 16:19:58,069 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-21 16:19:58,069 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 9 transitions. [2022-11-21 16:19:58,070 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-21 16:19:58,070 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-21 16:19:58,071 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-21 16:19:58,071 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-11-21 16:19:58,071 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-21 16:19:58,073 INFO L748 eck$LassoCheckResult]: Stem: 157#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 158#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_#t~nondet2#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;main_~a~0#1 := 0; 159#L18-2 assume !!(main_~y~0#1 > 0); 153#L18 [2022-11-21 16:19:58,074 INFO L750 eck$LassoCheckResult]: Loop: 153#L18 assume main_~x~0#1 > 0;main_#t~nondet2#1 := ~bitwiseComplement(main_~x~0#1);assume main_#t~nondet2#1 != main_~x~0#1;assume main_~x~0#1 >= 0 || main_#t~nondet2#1 > 0;main_~y~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 154#L18-2 assume !!(main_~y~0#1 > 0); 153#L18 [2022-11-21 16:19:58,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:19:58,075 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2022-11-21 16:19:58,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:19:58,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211111699] [2022-11-21 16:19:58,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:19:58,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:19:58,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:19:58,082 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 16:19:58,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:19:58,085 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 16:19:58,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:19:58,086 INFO L85 PathProgramCache]: Analyzing trace with hash 1406, now seen corresponding path program 1 times [2022-11-21 16:19:58,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:19:58,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345297272] [2022-11-21 16:19:58,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:19:58,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:19:58,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:19:58,090 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 16:19:58,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:19:58,093 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 16:19:58,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:19:58,094 INFO L85 PathProgramCache]: Analyzing trace with hash 28699749, now seen corresponding path program 2 times [2022-11-21 16:19:58,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:19:58,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100928782] [2022-11-21 16:19:58,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:19:58,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:19:58,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:19:58,100 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 16:19:58,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:19:58,112 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 16:19:58,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:19:58,189 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 16:19:58,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:19:58,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.11 04:19:58 BoogieIcfgContainer [2022-11-21 16:19:58,207 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-21 16:19:58,208 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 16:19:58,208 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 16:19:58,208 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 16:19:58,209 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:19:56" (3/4) ... [2022-11-21 16:19:58,212 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-21 16:19:58,212 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 16:19:58,213 INFO L158 Benchmark]: Toolchain (without parser) took 2368.41ms. Allocated memory was 157.3MB in the beginning and 188.7MB in the end (delta: 31.5MB). Free memory was 123.2MB in the beginning and 151.8MB in the end (delta: -28.5MB). Peak memory consumption was 2.9MB. Max. memory is 16.1GB. [2022-11-21 16:19:58,213 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 130.0MB. Free memory is still 97.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:19:58,214 INFO L158 Benchmark]: CACSL2BoogieTranslator took 277.52ms. Allocated memory is still 157.3MB. Free memory was 122.5MB in the beginning and 123.9MB in the end (delta: -1.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-21 16:19:58,219 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.07ms. Allocated memory is still 157.3MB. Free memory was 123.9MB in the beginning and 121.5MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 16:19:58,220 INFO L158 Benchmark]: Boogie Preprocessor took 23.37ms. Allocated memory is still 157.3MB. Free memory was 121.5MB in the beginning and 120.5MB in the end (delta: 941.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 16:19:58,222 INFO L158 Benchmark]: RCFGBuilder took 262.49ms. Allocated memory is still 157.3MB. Free memory was 120.5MB in the beginning and 112.2MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-21 16:19:58,223 INFO L158 Benchmark]: BuchiAutomizer took 1756.51ms. Allocated memory was 157.3MB in the beginning and 188.7MB in the end (delta: 31.5MB). Free memory was 112.2MB in the beginning and 152.8MB in the end (delta: -40.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:19:58,223 INFO L158 Benchmark]: Witness Printer took 3.84ms. Allocated memory is still 188.7MB. Free memory was 152.8MB in the beginning and 151.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:19:58,231 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 130.0MB. Free memory is still 97.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 277.52ms. Allocated memory is still 157.3MB. Free memory was 122.5MB in the beginning and 123.9MB in the end (delta: -1.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.07ms. Allocated memory is still 157.3MB. Free memory was 123.9MB in the beginning and 121.5MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.37ms. Allocated memory is still 157.3MB. Free memory was 121.5MB in the beginning and 120.5MB in the end (delta: 941.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 262.49ms. Allocated memory is still 157.3MB. Free memory was 120.5MB in the beginning and 112.2MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1756.51ms. Allocated memory was 157.3MB in the beginning and 188.7MB in the end (delta: 31.5MB). Free memory was 112.2MB in the beginning and 152.8MB in the end (delta: -40.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.84ms. Allocated memory is still 188.7MB. Free memory was 152.8MB in the beginning and 151.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic) and one module whose termination is unknown.One deterministic module has affine ranking function y and consists of 5 locations. One deterministic module has affine ranking function y and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 7 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.6s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 3 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, 12 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10 mSDsluCounter, 26 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 17 IncrementalHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 18 mSDtfsCounter, 17 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT1 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital14 mio100 ax100 hnf100 lsp71 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 41ms VariablesStem: 0 VariablesLoop: 1 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Unable to decide termination Buchi Automizer cannot decide termination for the following lasso because it contains the following overapproximations. Overapproximations C: y = ~x [19] (Reason bitwiseComplement) Lasso Stem: "assume { :begin_inline_ULTIMATE.init } true;" "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_#t~nondet2#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;main_~a~0#1 := 0;" "assume !!(main_~y~0#1 > 0);" Loop: "assume main_~x~0#1 > 0;main_#t~nondet2#1 := ~bitwiseComplement(main_~x~0#1);assume main_#t~nondet2#1 != main_~x~0#1;assume main_~x~0#1 >= 0 || main_#t~nondet2#1 > 0;main_~y~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;" "assume !!(main_~y~0#1 > 0);" RESULT: Ultimate could not prove your program: unable to determine termination [2022-11-21 16:19:58,251 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f854135-39a4-4785-b2a5-46d60eae27b7/bin/uautomizer-vX5HgA9Q3a/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 Using bit-precise analysis No suitable file found in config dir /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f854135-39a4-4785-b2a5-46d60eae27b7/bin/uautomizer-vX5HgA9Q3a/config using search string *Termination*64bit*_Bitvector*.epf No suitable settings file found using Termination*64bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: UNKNOWN