./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/b.13.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4ace5c-8779-4955-8e5a-0ff9cb6cae74/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4ace5c-8779-4955-8e5a-0ff9cb6cae74/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4ace5c-8779-4955-8e5a-0ff9cb6cae74/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4ace5c-8779-4955-8e5a-0ff9cb6cae74/bin/uautomizer-Dbtcem3rbc/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/b.13.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4ace5c-8779-4955-8e5a-0ff9cb6cae74/bin/uautomizer-Dbtcem3rbc/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4ace5c-8779-4955-8e5a-0ff9cb6cae74/bin/uautomizer-Dbtcem3rbc --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 1acb0c0dcfb78ab47001eb57f5095348cf0ba1fe26db78bd8f7dfec538bac19a --- 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-5e519f3 [2022-11-02 20:45:07,109 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:45:07,112 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:45:07,167 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:45:07,168 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:45:07,172 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:45:07,175 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:45:07,178 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:45:07,183 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:45:07,188 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:45:07,189 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:45:07,192 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:45:07,192 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:45:07,195 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:45:07,197 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:45:07,198 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:45:07,200 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:45:07,201 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:45:07,203 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:45:07,210 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:45:07,211 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:45:07,213 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:45:07,216 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:45:07,217 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:45:07,227 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:45:07,228 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:45:07,228 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:45:07,230 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:45:07,231 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:45:07,233 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:45:07,234 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:45:07,235 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:45:07,237 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:45:07,239 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:45:07,240 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:45:07,240 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:45:07,241 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:45:07,242 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:45:07,242 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:45:07,243 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:45:07,244 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:45:07,245 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4ace5c-8779-4955-8e5a-0ff9cb6cae74/bin/uautomizer-Dbtcem3rbc/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-11-02 20:45:07,293 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:45:07,294 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:45:07,294 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:45:07,295 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:45:07,297 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:45:07,297 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:45:07,297 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:45:07,298 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-02 20:45:07,298 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-02 20:45:07,298 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-02 20:45:07,299 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-02 20:45:07,300 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-02 20:45:07,300 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-02 20:45:07,301 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:45:07,301 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 20:45:07,301 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:45:07,301 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:45:07,302 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-02 20:45:07,302 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-02 20:45:07,302 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-02 20:45:07,303 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:45:07,303 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-02 20:45:07,303 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:45:07,305 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-02 20:45:07,306 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:45:07,306 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:45:07,306 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:45:07,307 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:45:07,308 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-02 20:45:07,308 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_db4ace5c-8779-4955-8e5a-0ff9cb6cae74/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4ace5c-8779-4955-8e5a-0ff9cb6cae74/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1acb0c0dcfb78ab47001eb57f5095348cf0ba1fe26db78bd8f7dfec538bac19a [2022-11-02 20:45:07,619 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:45:07,649 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:45:07,653 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:45:07,655 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:45:07,656 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:45:07,657 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4ace5c-8779-4955-8e5a-0ff9cb6cae74/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/termination-restricted-15/b.13.c [2022-11-02 20:45:07,748 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4ace5c-8779-4955-8e5a-0ff9cb6cae74/bin/uautomizer-Dbtcem3rbc/data/8d646005e/db13cb5e72ae4274a7bbc3a09b9dcfce/FLAG330501d6b [2022-11-02 20:45:08,286 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:45:08,286 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4ace5c-8779-4955-8e5a-0ff9cb6cae74/sv-benchmarks/c/termination-restricted-15/b.13.c [2022-11-02 20:45:08,293 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4ace5c-8779-4955-8e5a-0ff9cb6cae74/bin/uautomizer-Dbtcem3rbc/data/8d646005e/db13cb5e72ae4274a7bbc3a09b9dcfce/FLAG330501d6b [2022-11-02 20:45:08,658 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4ace5c-8779-4955-8e5a-0ff9cb6cae74/bin/uautomizer-Dbtcem3rbc/data/8d646005e/db13cb5e72ae4274a7bbc3a09b9dcfce [2022-11-02 20:45:08,661 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:45:08,663 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:45:08,665 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:45:08,665 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:45:08,669 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:45:08,670 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:45:08" (1/1) ... [2022-11-02 20:45:08,671 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3df19210 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:45:08, skipping insertion in model container [2022-11-02 20:45:08,671 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:45:08" (1/1) ... [2022-11-02 20:45:08,680 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:45:08,694 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:45:08,907 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:45:08,910 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:45:08,941 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:45:08,956 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:45:08,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:45:08 WrapperNode [2022-11-02 20:45:08,958 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:45:08,959 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:45:08,959 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:45:08,960 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:45:08,968 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:45:08" (1/1) ... [2022-11-02 20:45:08,975 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:45:08" (1/1) ... [2022-11-02 20:45:09,000 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 23 [2022-11-02 20:45:09,001 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:45:09,003 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:45:09,003 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:45:09,003 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:45:09,014 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:45:08" (1/1) ... [2022-11-02 20:45:09,014 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:45:08" (1/1) ... [2022-11-02 20:45:09,015 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:45:08" (1/1) ... [2022-11-02 20:45:09,016 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:45:08" (1/1) ... [2022-11-02 20:45:09,019 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:45:08" (1/1) ... [2022-11-02 20:45:09,025 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:45:08" (1/1) ... [2022-11-02 20:45:09,026 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:45:08" (1/1) ... [2022-11-02 20:45:09,026 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:45:08" (1/1) ... [2022-11-02 20:45:09,028 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:45:09,030 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:45:09,031 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:45:09,031 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:45:09,033 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:45:08" (1/1) ... [2022-11-02 20:45:09,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:45:09,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4ace5c-8779-4955-8e5a-0ff9cb6cae74/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:45:09,077 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4ace5c-8779-4955-8e5a-0ff9cb6cae74/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:45:09,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4ace5c-8779-4955-8e5a-0ff9cb6cae74/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-02 20:45:09,143 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:45:09,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:45:09,229 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:45:09,232 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:45:09,351 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:45:09,362 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:45:09,362 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-02 20:45:09,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:45:09 BoogieIcfgContainer [2022-11-02 20:45:09,364 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:45:09,367 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-02 20:45:09,367 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-02 20:45:09,372 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-02 20:45:09,373 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-02 20:45:09,373 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 02.11 08:45:08" (1/3) ... [2022-11-02 20:45:09,374 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@54442914 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.11 08:45:09, skipping insertion in model container [2022-11-02 20:45:09,374 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-02 20:45:09,375 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:45:08" (2/3) ... [2022-11-02 20:45:09,375 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@54442914 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.11 08:45:09, skipping insertion in model container [2022-11-02 20:45:09,375 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-02 20:45:09,376 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:45:09" (3/3) ... [2022-11-02 20:45:09,377 INFO L332 chiAutomizerObserver]: Analyzing ICFG b.13.c [2022-11-02 20:45:09,464 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-02 20:45:09,465 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-02 20:45:09,465 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-02 20:45:09,465 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-02 20:45:09,465 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-02 20:45:09,465 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-02 20:45:09,466 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-02 20:45:09,466 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-02 20:45:09,471 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:09,498 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-02 20:45:09,498 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:45:09,498 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:45:09,506 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-02 20:45:09,507 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-02 20:45:09,507 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-02 20:45:09,507 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:09,509 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-02 20:45:09,509 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:45:09,509 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:45:09,509 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-02 20:45:09,510 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-02 20:45:09,518 INFO L748 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 9#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_~c~0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_~c~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~z~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_~z~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~c~0#1 := 0; 7#L16-2true [2022-11-02 20:45:09,519 INFO L750 eck$LassoCheckResult]: Loop: 7#L16-2true assume !!(main_~x~0#1 > main_~z~0#1 || main_~y~0#1 > main_~z~0#1); 6#L13true assume main_~x~0#1 > main_~z~0#1;main_~x~0#1 := main_~x~0#1 - 1; 7#L16-2true [2022-11-02 20:45:09,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:45:09,535 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-11-02 20:45:09,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:45:09,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143031265] [2022-11-02 20:45:09,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:45:09,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:45:09,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:45:09,647 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:45:09,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:45:09,681 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:45:09,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:45:09,685 INFO L85 PathProgramCache]: Analyzing trace with hash 1316, now seen corresponding path program 1 times [2022-11-02 20:45:09,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:45:09,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508125870] [2022-11-02 20:45:09,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:45:09,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:45:09,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:45:09,709 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:45:09,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:45:09,730 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:45:09,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:45:09,739 INFO L85 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 1 times [2022-11-02 20:45:09,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:45:09,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991308901] [2022-11-02 20:45:09,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:45:09,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:45:09,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:45:09,748 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:45:09,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:45:09,769 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:45:09,913 INFO L210 LassoAnalysis]: Preferences: [2022-11-02 20:45:09,914 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-02 20:45:09,920 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-02 20:45:09,921 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-02 20:45:09,921 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-02 20:45:09,921 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:45:09,921 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-02 20:45:09,921 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-02 20:45:09,922 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.13.c_Iteration1_Loop [2022-11-02 20:45:09,922 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-02 20:45:09,922 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-02 20:45:09,956 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:45:09,995 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:45:10,008 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:45:10,134 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-02 20:45:10,135 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-02 20:45:10,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:45:10,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4ace5c-8779-4955-8e5a-0ff9cb6cae74/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:45:10,143 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4ace5c-8779-4955-8e5a-0ff9cb6cae74/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:45:10,151 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 20:45:10,152 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:45:10,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4ace5c-8779-4955-8e5a-0ff9cb6cae74/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-02 20:45:10,222 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4ace5c-8779-4955-8e5a-0ff9cb6cae74/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-02 20:45:10,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:45:10,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4ace5c-8779-4955-8e5a-0ff9cb6cae74/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:45:10,225 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4ace5c-8779-4955-8e5a-0ff9cb6cae74/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:45:10,233 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-02 20:45:10,234 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:45:10,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4ace5c-8779-4955-8e5a-0ff9cb6cae74/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-02 20:45:10,486 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-02 20:45:10,497 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4ace5c-8779-4955-8e5a-0ff9cb6cae74/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-02 20:45:10,498 INFO L210 LassoAnalysis]: Preferences: [2022-11-02 20:45:10,498 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-02 20:45:10,498 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-02 20:45:10,498 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-02 20:45:10,499 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-02 20:45:10,499 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:45:10,499 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-02 20:45:10,520 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-02 20:45:10,520 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.13.c_Iteration1_Loop [2022-11-02 20:45:10,520 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-02 20:45:10,521 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-02 20:45:10,523 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:45:10,532 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:45:10,537 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:45:10,603 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-02 20:45:10,609 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-02 20:45:10,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:45:10,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4ace5c-8779-4955-8e5a-0ff9cb6cae74/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:45:10,628 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4ace5c-8779-4955-8e5a-0ff9cb6cae74/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:45:10,631 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 [2022-11-02 20:45:10,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4ace5c-8779-4955-8e5a-0ff9cb6cae74/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-02 20:45:10,648 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:45:10,648 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 20:45:10,649 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:45:10,649 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:45:10,649 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:45:10,653 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 20:45:10,653 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 20:45:10,666 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-02 20:45:10,675 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2022-11-02 20:45:10,676 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-02 20:45:10,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:45:10,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4ace5c-8779-4955-8e5a-0ff9cb6cae74/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:45:10,683 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4ace5c-8779-4955-8e5a-0ff9cb6cae74/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:45:10,711 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-02 20:45:10,712 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-02 20:45:10,713 INFO L513 LassoAnalysis]: Proved termination. [2022-11-02 20:45:10,713 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~z~0#1) = 1*ULTIMATE.start_main_~x~0#1 - 1*ULTIMATE.start_main_~z~0#1 Supporting invariants [] [2022-11-02 20:45:10,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4ace5c-8779-4955-8e5a-0ff9cb6cae74/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-02 20:45:10,758 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4ace5c-8779-4955-8e5a-0ff9cb6cae74/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-02 20:45:10,762 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-02 20:45:10,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:45:10,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:45:10,811 INFO L263 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 20:45:10,812 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:45:10,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:45:10,829 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-02 20:45:10,832 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:45:10,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:45:10,887 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2022-11-02 20:45:10,890 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:10,958 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 24 states and 35 transitions. Complement of second has 5 states. [2022-11-02 20:45:10,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-11-02 20:45:10,968 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) [2022-11-02 20:45:10,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2022-11-02 20:45:10,971 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 2 letters. Loop has 2 letters. [2022-11-02 20:45:10,972 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:45:10,973 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 4 letters. Loop has 2 letters. [2022-11-02 20:45:10,973 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:45:10,973 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 2 letters. Loop has 4 letters. [2022-11-02 20:45:10,973 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:45:10,974 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 35 transitions. [2022-11-02 20:45:10,987 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-02 20:45:10,990 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 11 states and 16 transitions. [2022-11-02 20:45:10,992 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2022-11-02 20:45:10,992 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2022-11-02 20:45:10,993 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 16 transitions. [2022-11-02 20:45:10,993 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-02 20:45:10,994 INFO L218 hiAutomatonCegarLoop]: Abstraction has 11 states and 16 transitions. [2022-11-02 20:45:11,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 16 transitions. [2022-11-02 20:45:11,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2022-11-02 20:45:11,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.5) internal successors, (15), 9 states have internal predecessors, (15), 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) [2022-11-02 20:45:11,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 15 transitions. [2022-11-02 20:45:11,027 INFO L240 hiAutomatonCegarLoop]: Abstraction has 10 states and 15 transitions. [2022-11-02 20:45:11,027 INFO L428 stractBuchiCegarLoop]: Abstraction has 10 states and 15 transitions. [2022-11-02 20:45:11,028 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-02 20:45:11,028 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 15 transitions. [2022-11-02 20:45:11,029 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-02 20:45:11,029 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:45:11,029 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:45:11,029 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-11-02 20:45:11,030 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-02 20:45:11,030 INFO L748 eck$LassoCheckResult]: Stem: 74#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 75#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_~c~0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_~c~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~z~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_~z~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~c~0#1 := 0; 76#L16-2 assume !!(main_~x~0#1 > main_~z~0#1 || main_~y~0#1 > main_~z~0#1); 71#L13 [2022-11-02 20:45:11,030 INFO L750 eck$LassoCheckResult]: Loop: 71#L13 assume !(main_~x~0#1 > main_~z~0#1); 67#L16 assume main_~y~0#1 > main_~z~0#1;main_~y~0#1 := main_~y~0#1 - 1; 68#L16-2 assume !!(main_~x~0#1 > main_~z~0#1 || main_~y~0#1 > main_~z~0#1); 71#L13 [2022-11-02 20:45:11,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:45:11,031 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2022-11-02 20:45:11,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:45:11,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104645649] [2022-11-02 20:45:11,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:45:11,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:45:11,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:45:11,041 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:45:11,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:45:11,046 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:45:11,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:45:11,047 INFO L85 PathProgramCache]: Analyzing trace with hash 45767, now seen corresponding path program 1 times [2022-11-02 20:45:11,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:45:11,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540493309] [2022-11-02 20:45:11,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:45:11,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:45:11,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:45:11,056 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:45:11,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:45:11,062 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:45:11,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:45:11,062 INFO L85 PathProgramCache]: Analyzing trace with hash 889694400, now seen corresponding path program 1 times [2022-11-02 20:45:11,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:45:11,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076813218] [2022-11-02 20:45:11,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:45:11,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:45:11,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:45:11,072 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:45:11,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:45:11,079 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:45:11,116 INFO L210 LassoAnalysis]: Preferences: [2022-11-02 20:45:11,116 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-02 20:45:11,116 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-02 20:45:11,116 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-02 20:45:11,117 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-02 20:45:11,117 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:45:11,117 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-02 20:45:11,117 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-02 20:45:11,117 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.13.c_Iteration2_Loop [2022-11-02 20:45:11,117 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-02 20:45:11,117 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-02 20:45:11,119 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:45:11,123 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:45:11,133 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:45:11,173 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-02 20:45:11,174 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-02 20:45:11,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:45:11,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4ace5c-8779-4955-8e5a-0ff9cb6cae74/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:45:11,175 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4ace5c-8779-4955-8e5a-0ff9cb6cae74/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:45:11,196 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 20:45:11,196 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:45:11,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4ace5c-8779-4955-8e5a-0ff9cb6cae74/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-02 20:45:11,225 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-02 20:45:11,225 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-02 20:45:11,248 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4ace5c-8779-4955-8e5a-0ff9cb6cae74/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-11-02 20:45:11,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:45:11,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4ace5c-8779-4955-8e5a-0ff9cb6cae74/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:45:11,250 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4ace5c-8779-4955-8e5a-0ff9cb6cae74/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:45:11,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4ace5c-8779-4955-8e5a-0ff9cb6cae74/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-02 20:45:11,252 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 20:45:11,253 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:45:11,292 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4ace5c-8779-4955-8e5a-0ff9cb6cae74/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-11-02 20:45:11,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:45:11,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4ace5c-8779-4955-8e5a-0ff9cb6cae74/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:45:11,294 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4ace5c-8779-4955-8e5a-0ff9cb6cae74/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:45:11,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4ace5c-8779-4955-8e5a-0ff9cb6cae74/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-02 20:45:11,311 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-02 20:45:11,311 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:45:11,804 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-02 20:45:11,808 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4ace5c-8779-4955-8e5a-0ff9cb6cae74/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2022-11-02 20:45:11,808 INFO L210 LassoAnalysis]: Preferences: [2022-11-02 20:45:11,808 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-02 20:45:11,808 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-02 20:45:11,808 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-02 20:45:11,809 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-02 20:45:11,809 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:45:11,809 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-02 20:45:11,809 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-02 20:45:11,809 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.13.c_Iteration2_Loop [2022-11-02 20:45:11,809 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-02 20:45:11,809 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-02 20:45:11,811 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:45:11,834 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:45:11,838 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:45:11,898 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-02 20:45:11,898 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-02 20:45:11,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:45:11,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4ace5c-8779-4955-8e5a-0ff9cb6cae74/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:45:11,904 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4ace5c-8779-4955-8e5a-0ff9cb6cae74/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:45:11,908 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 [2022-11-02 20:45:11,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4ace5c-8779-4955-8e5a-0ff9cb6cae74/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-02 20:45:11,922 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:45:11,922 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 20:45:11,922 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:45:11,923 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:45:11,923 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:45:11,925 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 20:45:11,926 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 20:45:11,938 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-02 20:45:11,944 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2022-11-02 20:45:11,944 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-02 20:45:11,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:45:11,945 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4ace5c-8779-4955-8e5a-0ff9cb6cae74/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:45:11,951 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4ace5c-8779-4955-8e5a-0ff9cb6cae74/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:45:11,961 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-02 20:45:11,961 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-02 20:45:11,961 INFO L513 LassoAnalysis]: Proved termination. [2022-11-02 20:45:11,962 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_~z~0#1) = 1*ULTIMATE.start_main_~y~0#1 - 1*ULTIMATE.start_main_~z~0#1 Supporting invariants [] [2022-11-02 20:45:11,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4ace5c-8779-4955-8e5a-0ff9cb6cae74/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-11-02 20:45:11,990 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4ace5c-8779-4955-8e5a-0ff9cb6cae74/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2022-11-02 20:45:11,992 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-02 20:45:12,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:45:12,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:45:12,025 INFO L263 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 20:45:12,025 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:45:12,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:45:12,036 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-02 20:45:12,036 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:45:12,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:45:12,105 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-11-02 20:45:12,105 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 15 transitions. cyclomatic complexity: 7 Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:12,143 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 15 transitions. cyclomatic complexity: 7. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 36 states and 54 transitions. Complement of second has 7 states. [2022-11-02 20:45:12,144 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 [2022-11-02 20:45:12,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:45:12,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 19 transitions. [2022-11-02 20:45:12,145 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 3 letters. Loop has 3 letters. [2022-11-02 20:45:12,146 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:45:12,146 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 6 letters. Loop has 3 letters. [2022-11-02 20:45:12,146 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:45:12,147 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 3 letters. Loop has 6 letters. [2022-11-02 20:45:12,147 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:45:12,147 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 54 transitions. [2022-11-02 20:45:12,149 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-02 20:45:12,150 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 25 states and 36 transitions. [2022-11-02 20:45:12,151 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2022-11-02 20:45:12,151 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2022-11-02 20:45:12,151 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 36 transitions. [2022-11-02 20:45:12,151 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-02 20:45:12,151 INFO L218 hiAutomatonCegarLoop]: Abstraction has 25 states and 36 transitions. [2022-11-02 20:45:12,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 36 transitions. [2022-11-02 20:45:12,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 21. [2022-11-02 20:45:12,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 21 states have (on average 1.5238095238095237) internal successors, (32), 20 states have internal predecessors, (32), 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) [2022-11-02 20:45:12,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 32 transitions. [2022-11-02 20:45:12,156 INFO L240 hiAutomatonCegarLoop]: Abstraction has 21 states and 32 transitions. [2022-11-02 20:45:12,156 INFO L428 stractBuchiCegarLoop]: Abstraction has 21 states and 32 transitions. [2022-11-02 20:45:12,156 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-02 20:45:12,156 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 32 transitions. [2022-11-02 20:45:12,157 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-02 20:45:12,158 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:45:12,158 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:45:12,158 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-11-02 20:45:12,158 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-02 20:45:12,159 INFO L748 eck$LassoCheckResult]: Stem: 163#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 164#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_~c~0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_~c~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~z~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_~z~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~c~0#1 := 0; 167#L16-2 assume !!(main_~x~0#1 > main_~z~0#1 || main_~y~0#1 > main_~z~0#1); 168#L13 assume !(main_~x~0#1 > main_~z~0#1); 155#L16 [2022-11-02 20:45:12,159 INFO L750 eck$LassoCheckResult]: Loop: 155#L16 assume !(main_~y~0#1 > main_~z~0#1); 156#L16-2 assume !!(main_~x~0#1 > main_~z~0#1 || main_~y~0#1 > main_~z~0#1); 165#L13 assume !(main_~x~0#1 > main_~z~0#1); 155#L16 [2022-11-02 20:45:12,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:45:12,160 INFO L85 PathProgramCache]: Analyzing trace with hash 925800, now seen corresponding path program 1 times [2022-11-02 20:45:12,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:45:12,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520097591] [2022-11-02 20:45:12,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:45:12,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:45:12,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:45:12,166 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:45:12,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:45:12,171 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:45:12,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:45:12,172 INFO L85 PathProgramCache]: Analyzing trace with hash 50329, now seen corresponding path program 1 times [2022-11-02 20:45:12,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:45:12,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767473243] [2022-11-02 20:45:12,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:45:12,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:45:12,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:45:12,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:45:12,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:45:12,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767473243] [2022-11-02 20:45:12,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767473243] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:45:12,308 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:45:12,308 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:45:12,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907630058] [2022-11-02 20:45:12,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:45:12,311 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-02 20:45:12,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:45:12,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:45:12,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:45:12,325 INFO L87 Difference]: Start difference. First operand 21 states and 32 transitions. cyclomatic complexity: 15 Second operand has 4 states, 3 states have (on average 1.0) 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) [2022-11-02 20:45:12,356 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4ace5c-8779-4955-8e5a-0ff9cb6cae74/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-02 20:45:12,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:45:12,388 INFO L93 Difference]: Finished difference Result 23 states and 31 transitions. [2022-11-02 20:45:12,388 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 31 transitions. [2022-11-02 20:45:12,389 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-02 20:45:12,389 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 0 states and 0 transitions. [2022-11-02 20:45:12,390 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-02 20:45:12,390 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-02 20:45:12,390 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-02 20:45:12,390 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:45:12,390 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-02 20:45:12,390 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-02 20:45:12,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 20:45:12,391 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-02 20:45:12,392 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-11-02 20:45:12,392 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-11-02 20:45:12,392 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-02 20:45:12,392 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-11-02 20:45:12,400 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 02.11 08:45:12 BoogieIcfgContainer [2022-11-02 20:45:12,415 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-02 20:45:12,415 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-02 20:45:12,416 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-02 20:45:12,416 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-02 20:45:12,416 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:45:09" (3/4) ... [2022-11-02 20:45:12,434 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4ace5c-8779-4955-8e5a-0ff9cb6cae74/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-11-02 20:45:12,436 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-02 20:45:12,437 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-02 20:45:12,438 INFO L158 Benchmark]: Toolchain (without parser) took 3774.38ms. Allocated memory was 111.1MB in the beginning and 134.2MB in the end (delta: 23.1MB). Free memory was 80.7MB in the beginning and 103.9MB in the end (delta: -23.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:45:12,438 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 111.1MB. Free memory was 65.0MB in the beginning and 65.0MB in the end (delta: 45.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:45:12,439 INFO L158 Benchmark]: CACSL2BoogieTranslator took 293.26ms. Allocated memory is still 111.1MB. Free memory was 80.7MB in the beginning and 87.5MB in the end (delta: -6.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-02 20:45:12,439 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.66ms. Allocated memory is still 111.1MB. Free memory was 87.5MB in the beginning and 86.2MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:45:12,440 INFO L158 Benchmark]: Boogie Preprocessor took 25.73ms. Allocated memory is still 111.1MB. Free memory was 86.2MB in the beginning and 85.0MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 20:45:12,441 INFO L158 Benchmark]: RCFGBuilder took 334.42ms. Allocated memory is still 111.1MB. Free memory was 85.0MB in the beginning and 77.0MB in the end (delta: 8.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-02 20:45:12,442 INFO L158 Benchmark]: BuchiAutomizer took 3048.42ms. Allocated memory was 111.1MB in the beginning and 134.2MB in the end (delta: 23.1MB). Free memory was 76.6MB in the beginning and 104.1MB in the end (delta: -27.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:45:12,442 INFO L158 Benchmark]: Witness Printer took 21.14ms. Allocated memory is still 134.2MB. Free memory was 104.1MB in the beginning and 103.9MB in the end (delta: 297.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:45:12,447 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 111.1MB. Free memory was 65.0MB in the beginning and 65.0MB in the end (delta: 45.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 293.26ms. Allocated memory is still 111.1MB. Free memory was 80.7MB in the beginning and 87.5MB in the end (delta: -6.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.66ms. Allocated memory is still 111.1MB. Free memory was 87.5MB in the beginning and 86.2MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 25.73ms. Allocated memory is still 111.1MB. Free memory was 86.2MB in the beginning and 85.0MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 334.42ms. Allocated memory is still 111.1MB. Free memory was 85.0MB in the beginning and 77.0MB in the end (delta: 8.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 3048.42ms. Allocated memory was 111.1MB in the beginning and 134.2MB in the end (delta: 23.1MB). Free memory was 76.6MB in the beginning and 104.1MB in the end (delta: -27.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 21.14ms. Allocated memory is still 134.2MB. Free memory was 104.1MB in the beginning and 103.9MB in the end (delta: 297.0kB). 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). One deterministic module has affine ranking function -1 * z + x and consists of 4 locations. One deterministic module has affine ranking function -1 * z + y and consists of 5 locations. 1 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.9s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 2.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 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, 18 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16 mSDsluCounter, 20 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 44 IncrementalHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 15 mSDtfsCounter, 44 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital12 mio100 ax202 hnf100 lsp49 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq151 hnf94 smp100 dnf100 smp100 tf111 neg97 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 102ms VariablesStem: 0 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.9s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-11-02 20:45:12,507 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db4ace5c-8779-4955-8e5a-0ff9cb6cae74/bin/uautomizer-Dbtcem3rbc/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