./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/MinusBuiltIn.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5728ed16-ed57-4f5f-a8d5-237d90986710/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5728ed16-ed57-4f5f-a8d5-237d90986710/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5728ed16-ed57-4f5f-a8d5-237d90986710/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5728ed16-ed57-4f5f-a8d5-237d90986710/bin/uautomizer-tPACEb0tL8/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/MinusBuiltIn.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5728ed16-ed57-4f5f-a8d5-237d90986710/bin/uautomizer-tPACEb0tL8/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5728ed16-ed57-4f5f-a8d5-237d90986710/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 9636ca5fb53dc225edebc26ddcbea46d2f84552600f047b3d42031c67fab75e2 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 12:25:25,138 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:25:25,140 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:25:25,160 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:25:25,161 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:25:25,162 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:25:25,164 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:25:25,166 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:25:25,168 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:25:25,169 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:25:25,170 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:25:25,171 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:25:25,172 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:25:25,173 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:25:25,174 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:25:25,176 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:25:25,177 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:25:25,178 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:25:25,180 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:25:25,182 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:25:25,183 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:25:25,185 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:25:25,186 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:25:25,187 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:25:25,191 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:25:25,191 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:25:25,192 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:25:25,193 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:25:25,193 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:25:25,194 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:25:25,195 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:25:25,196 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:25:25,197 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:25:25,197 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:25:25,198 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:25:25,199 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:25:25,200 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:25:25,200 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:25:25,201 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:25:25,202 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:25:25,202 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:25:25,204 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5728ed16-ed57-4f5f-a8d5-237d90986710/bin/uautomizer-tPACEb0tL8/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-11-16 12:25:25,225 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:25:25,226 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:25:25,226 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:25:25,227 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:25:25,228 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:25:25,228 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:25:25,228 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:25:25,229 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-16 12:25:25,229 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-16 12:25:25,229 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-16 12:25:25,230 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-16 12:25:25,230 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-16 12:25:25,230 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-16 12:25:25,230 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:25:25,231 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 12:25:25,231 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:25:25,231 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:25:25,232 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-16 12:25:25,232 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-16 12:25:25,232 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-16 12:25:25,233 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:25:25,233 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-16 12:25:25,233 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:25:25,233 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-16 12:25:25,234 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:25:25,234 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:25:25,234 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:25:25,235 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:25:25,236 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-16 12:25:25,236 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_5728ed16-ed57-4f5f-a8d5-237d90986710/bin/uautomizer-tPACEb0tL8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5728ed16-ed57-4f5f-a8d5-237d90986710/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9636ca5fb53dc225edebc26ddcbea46d2f84552600f047b3d42031c67fab75e2 [2022-11-16 12:25:25,485 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:25:25,506 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:25:25,508 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:25:25,510 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:25:25,511 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:25:25,512 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5728ed16-ed57-4f5f-a8d5-237d90986710/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/termination-restricted-15/MinusBuiltIn.c [2022-11-16 12:25:25,576 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5728ed16-ed57-4f5f-a8d5-237d90986710/bin/uautomizer-tPACEb0tL8/data/211924cb6/8d1f9f0bec804709b23f7881cd18f468/FLAG52ee8b7af [2022-11-16 12:25:26,102 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:25:26,102 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5728ed16-ed57-4f5f-a8d5-237d90986710/sv-benchmarks/c/termination-restricted-15/MinusBuiltIn.c [2022-11-16 12:25:26,108 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5728ed16-ed57-4f5f-a8d5-237d90986710/bin/uautomizer-tPACEb0tL8/data/211924cb6/8d1f9f0bec804709b23f7881cd18f468/FLAG52ee8b7af [2022-11-16 12:25:26,478 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5728ed16-ed57-4f5f-a8d5-237d90986710/bin/uautomizer-tPACEb0tL8/data/211924cb6/8d1f9f0bec804709b23f7881cd18f468 [2022-11-16 12:25:26,480 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:25:26,481 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:25:26,483 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:25:26,483 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:25:26,487 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:25:26,488 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:25:26" (1/1) ... [2022-11-16 12:25:26,489 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cbfd468 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:25:26, skipping insertion in model container [2022-11-16 12:25:26,490 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:25:26" (1/1) ... [2022-11-16 12:25:26,497 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:25:26,508 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:25:26,712 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:25:26,717 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:25:26,737 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:25:26,750 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:25:26,750 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:25:26 WrapperNode [2022-11-16 12:25:26,751 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:25:26,752 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:25:26,752 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:25:26,753 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:25:26,760 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:25:26" (1/1) ... [2022-11-16 12:25:26,767 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:25:26" (1/1) ... [2022-11-16 12:25:26,784 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 20 [2022-11-16 12:25:26,784 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:25:26,785 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:25:26,786 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:25:26,786 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:25:26,795 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:25:26" (1/1) ... [2022-11-16 12:25:26,796 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:25:26" (1/1) ... [2022-11-16 12:25:26,797 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:25:26" (1/1) ... [2022-11-16 12:25:26,797 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:25:26" (1/1) ... [2022-11-16 12:25:26,799 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:25:26" (1/1) ... [2022-11-16 12:25:26,803 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:25:26" (1/1) ... [2022-11-16 12:25:26,804 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:25:26" (1/1) ... [2022-11-16 12:25:26,805 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:25:26" (1/1) ... [2022-11-16 12:25:26,806 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:25:26,808 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:25:26,808 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:25:26,809 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:25:26,810 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:25:26" (1/1) ... [2022-11-16 12:25:26,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:25:26,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5728ed16-ed57-4f5f-a8d5-237d90986710/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:25:26,839 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5728ed16-ed57-4f5f-a8d5-237d90986710/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:25:26,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5728ed16-ed57-4f5f-a8d5-237d90986710/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-16 12:25:26,903 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:25:26,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:25:26,991 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:25:26,993 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:25:27,051 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:25:27,057 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:25:27,058 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 12:25:27,060 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:25:27 BoogieIcfgContainer [2022-11-16 12:25:27,060 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:25:27,061 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-16 12:25:27,061 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-16 12:25:27,069 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-16 12:25:27,070 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-16 12:25:27,071 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 16.11 12:25:26" (1/3) ... [2022-11-16 12:25:27,072 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5dd51394 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.11 12:25:27, skipping insertion in model container [2022-11-16 12:25:27,072 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-16 12:25:27,072 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:25:26" (2/3) ... [2022-11-16 12:25:27,072 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5dd51394 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.11 12:25:27, skipping insertion in model container [2022-11-16 12:25:27,073 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-16 12:25:27,073 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:25:27" (3/3) ... [2022-11-16 12:25:27,074 INFO L332 chiAutomizerObserver]: Analyzing ICFG MinusBuiltIn.c [2022-11-16 12:25:27,130 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-16 12:25:27,130 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-16 12:25:27,130 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-16 12:25:27,131 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-16 12:25:27,131 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-16 12:25:27,131 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-16 12:25:27,131 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-16 12:25:27,132 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-16 12:25:27,136 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) [2022-11-16 12:25:27,155 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-11-16 12:25:27,166 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 12:25:27,167 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 12:25:27,172 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-11-16 12:25:27,172 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-11-16 12:25:27,173 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-16 12:25:27,173 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) [2022-11-16 12:25:27,174 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-11-16 12:25:27,174 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 12:25:27,175 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 12:25:27,175 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-11-16 12:25:27,175 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-11-16 12:25:27,184 INFO L748 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 6#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1, main_~res~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~res~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_~res~0#1 := 0; 5#L13true assume !!(main_~x~0#1 < 2147483647); 7#L14-2true [2022-11-16 12:25:27,184 INFO L750 eck$LassoCheckResult]: Loop: 7#L14-2true assume !!(main_~x~0#1 > main_~y~0#1);main_~y~0#1 := 1 + main_~x~0#1; 7#L14-2true [2022-11-16 12:25:27,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:25:27,196 INFO L85 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2022-11-16 12:25:27,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:25:27,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080072684] [2022-11-16 12:25:27,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:25:27,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:25:27,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:25:27,311 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:25:27,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:25:27,346 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 12:25:27,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:25:27,350 INFO L85 PathProgramCache]: Analyzing trace with hash 47, now seen corresponding path program 1 times [2022-11-16 12:25:27,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:25:27,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899061611] [2022-11-16 12:25:27,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:25:27,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:25:27,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:25:27,372 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:25:27,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:25:27,382 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 12:25:27,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:25:27,392 INFO L85 PathProgramCache]: Analyzing trace with hash 925676, now seen corresponding path program 1 times [2022-11-16 12:25:27,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:25:27,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605110171] [2022-11-16 12:25:27,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:25:27,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:25:27,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:25:27,402 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:25:27,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:25:27,418 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 12:25:27,493 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 12:25:27,494 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 12:25:27,494 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 12:25:27,494 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 12:25:27,494 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-16 12:25:27,494 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:25:27,495 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 12:25:27,495 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 12:25:27,495 INFO L133 ssoRankerPreferences]: Filename of dumped script: MinusBuiltIn.c_Iteration1_Loop [2022-11-16 12:25:27,495 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 12:25:27,496 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 12:25:27,540 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:25:27,567 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:25:27,571 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:25:27,644 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 12:25:27,645 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-16 12:25:27,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:25:27,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5728ed16-ed57-4f5f-a8d5-237d90986710/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:25:27,660 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5728ed16-ed57-4f5f-a8d5-237d90986710/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:25:27,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5728ed16-ed57-4f5f-a8d5-237d90986710/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-16 12:25:27,676 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 12:25:27,676 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 12:25:27,711 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 12:25:27,712 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-16 12:25:27,722 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5728ed16-ed57-4f5f-a8d5-237d90986710/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-16 12:25:27,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:25:27,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5728ed16-ed57-4f5f-a8d5-237d90986710/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:25:27,724 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5728ed16-ed57-4f5f-a8d5-237d90986710/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:25:27,734 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 12:25:27,734 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 12:25:27,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5728ed16-ed57-4f5f-a8d5-237d90986710/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-16 12:25:27,763 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 12:25:27,763 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-16 12:25:27,772 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5728ed16-ed57-4f5f-a8d5-237d90986710/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-16 12:25:27,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:25:27,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5728ed16-ed57-4f5f-a8d5-237d90986710/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:25:27,774 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5728ed16-ed57-4f5f-a8d5-237d90986710/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:25:27,783 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 12:25:27,783 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 12:25:27,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5728ed16-ed57-4f5f-a8d5-237d90986710/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-16 12:25:27,843 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5728ed16-ed57-4f5f-a8d5-237d90986710/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-16 12:25:27,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:25:27,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5728ed16-ed57-4f5f-a8d5-237d90986710/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:25:27,845 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5728ed16-ed57-4f5f-a8d5-237d90986710/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:25:27,853 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-16 12:25:27,854 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 12:25:27,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5728ed16-ed57-4f5f-a8d5-237d90986710/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-16 12:25:28,774 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-16 12:25:28,779 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5728ed16-ed57-4f5f-a8d5-237d90986710/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-16 12:25:28,779 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 12:25:28,780 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 12:25:28,780 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 12:25:28,780 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 12:25:28,780 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-16 12:25:28,780 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:25:28,780 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 12:25:28,781 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 12:25:28,781 INFO L133 ssoRankerPreferences]: Filename of dumped script: MinusBuiltIn.c_Iteration1_Loop [2022-11-16 12:25:28,781 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 12:25:28,781 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 12:25:28,783 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:25:28,794 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:25:28,809 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:25:28,869 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 12:25:28,874 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-16 12:25:28,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:25:28,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5728ed16-ed57-4f5f-a8d5-237d90986710/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:25:28,877 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5728ed16-ed57-4f5f-a8d5-237d90986710/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:25:28,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5728ed16-ed57-4f5f-a8d5-237d90986710/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-16 12:25:28,908 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 [2022-11-16 12:25:28,922 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 12:25:28,922 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 12:25:28,922 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 12:25:28,923 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 12:25:28,941 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-16 12:25:28,941 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-16 12:25:28,958 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 12:25:28,962 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5728ed16-ed57-4f5f-a8d5-237d90986710/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-11-16 12:25:28,963 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:25:28,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5728ed16-ed57-4f5f-a8d5-237d90986710/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:25:28,965 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5728ed16-ed57-4f5f-a8d5-237d90986710/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:25:28,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5728ed16-ed57-4f5f-a8d5-237d90986710/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-16 12:25:28,976 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-16 12:25:28,988 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 12:25:28,988 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 12:25:28,989 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 12:25:28,989 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 12:25:28,989 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 12:25:28,991 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 12:25:28,991 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 12:25:29,014 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-16 12:25:29,019 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-16 12:25:29,019 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-16 12:25:29,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:25:29,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5728ed16-ed57-4f5f-a8d5-237d90986710/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:25:29,027 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5728ed16-ed57-4f5f-a8d5-237d90986710/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:25:29,029 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5728ed16-ed57-4f5f-a8d5-237d90986710/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-16 12:25:29,029 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-16 12:25:29,030 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-16 12:25:29,031 INFO L513 LassoAnalysis]: Proved termination. [2022-11-16 12:25:29,031 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_~x~0#1) = -1*ULTIMATE.start_main_~y~0#1 + 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2022-11-16 12:25:29,040 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5728ed16-ed57-4f5f-a8d5-237d90986710/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-11-16 12:25:29,043 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-16 12:25:29,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:25:29,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:29,085 INFO L263 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 12:25:29,087 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:25:29,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:29,104 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 12:25:29,110 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:25:29,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:25:29,152 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 [2022-11-16 12:25:29,155 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 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:25:29,191 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 2 states, 2 states have (on average 2.0) internal successors, (4), 2 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 20 states and 23 transitions. Complement of second has 5 states. [2022-11-16 12:25:29,193 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 [2022-11-16 12:25:29,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:25:29,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2022-11-16 12:25:29,201 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 3 letters. Loop has 1 letters. [2022-11-16 12:25:29,202 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 12:25:29,202 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 4 letters. Loop has 1 letters. [2022-11-16 12:25:29,203 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 12:25:29,203 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 3 letters. Loop has 2 letters. [2022-11-16 12:25:29,203 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 12:25:29,204 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 23 transitions. [2022-11-16 12:25:29,209 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-16 12:25:29,250 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 0 states and 0 transitions. [2022-11-16 12:25:29,251 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5728ed16-ed57-4f5f-a8d5-237d90986710/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-11-16 12:25:29,252 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-16 12:25:29,252 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-16 12:25:29,252 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-16 12:25:29,253 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:25:29,253 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 12:25:29,253 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 12:25:29,253 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 12:25:29,253 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-16 12:25:29,253 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-11-16 12:25:29,253 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-16 12:25:29,253 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-11-16 12:25:29,270 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 16.11 12:25:29 BoogieIcfgContainer [2022-11-16 12:25:29,270 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-16 12:25:29,271 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 12:25:29,271 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 12:25:29,271 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 12:25:29,272 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:25:27" (3/4) ... [2022-11-16 12:25:29,274 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-16 12:25:29,275 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 12:25:29,275 INFO L158 Benchmark]: Toolchain (without parser) took 2793.80ms. Allocated memory is still 125.8MB. Free memory was 89.6MB in the beginning and 100.4MB in the end (delta: -10.9MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:25:29,276 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 125.8MB. Free memory was 105.6MB in the beginning and 105.5MB in the end (delta: 118.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:25:29,277 INFO L158 Benchmark]: CACSL2BoogieTranslator took 267.96ms. Allocated memory is still 125.8MB. Free memory was 89.3MB in the beginning and 102.7MB in the end (delta: -13.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-16 12:25:29,277 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.03ms. Allocated memory is still 125.8MB. Free memory was 102.7MB in the beginning and 101.4MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:25:29,282 INFO L158 Benchmark]: Boogie Preprocessor took 21.84ms. Allocated memory is still 125.8MB. Free memory was 101.4MB in the beginning and 100.6MB in the end (delta: 856.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:25:29,283 INFO L158 Benchmark]: RCFGBuilder took 252.29ms. Allocated memory is still 125.8MB. Free memory was 100.6MB in the beginning and 92.2MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-16 12:25:29,283 INFO L158 Benchmark]: BuchiAutomizer took 2209.25ms. Allocated memory is still 125.8MB. Free memory was 92.2MB in the beginning and 100.4MB in the end (delta: -8.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:25:29,283 INFO L158 Benchmark]: Witness Printer took 3.88ms. Allocated memory is still 125.8MB. Free memory is still 100.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:25:29,286 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 125.8MB. Free memory was 105.6MB in the beginning and 105.5MB in the end (delta: 118.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 267.96ms. Allocated memory is still 125.8MB. Free memory was 89.3MB in the beginning and 102.7MB in the end (delta: -13.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.03ms. Allocated memory is still 125.8MB. Free memory was 102.7MB in the beginning and 101.4MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 21.84ms. Allocated memory is still 125.8MB. Free memory was 101.4MB in the beginning and 100.6MB in the end (delta: 856.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 252.29ms. Allocated memory is still 125.8MB. Free memory was 100.6MB in the beginning and 92.2MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 2209.25ms. Allocated memory is still 125.8MB. Free memory was 92.2MB in the beginning and 100.4MB in the end (delta: -8.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.88ms. Allocated memory is still 125.8MB. Free memory is still 100.4MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * y + x and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.1s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 9 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital10 mio100 ax220 hnf100 lsp45 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 83ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.1s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-11-16 12:25:29,308 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5728ed16-ed57-4f5f-a8d5-237d90986710/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE