./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-alloca/java_Continue1-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/java_Continue1-alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa --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 337340cdf38da99928295b0c576766fb8f09c8634f9763511165b0f7240edd89 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-07 00:26:45,205 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-07 00:26:45,207 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-07 00:26:45,229 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-07 00:26:45,230 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-07 00:26:45,231 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-07 00:26:45,232 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-07 00:26:45,234 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-07 00:26:45,236 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-07 00:26:45,237 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-07 00:26:45,238 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-07 00:26:45,239 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-07 00:26:45,239 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-07 00:26:45,240 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-07 00:26:45,241 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-07 00:26:45,242 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-07 00:26:45,243 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-07 00:26:45,244 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-07 00:26:45,245 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-07 00:26:45,247 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-07 00:26:45,249 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-07 00:26:45,250 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-07 00:26:45,251 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-07 00:26:45,252 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-07 00:26:45,255 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-07 00:26:45,255 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-07 00:26:45,255 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-07 00:26:45,256 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-07 00:26:45,257 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-07 00:26:45,262 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-07 00:26:45,262 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-07 00:26:45,263 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-07 00:26:45,264 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-07 00:26:45,265 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-07 00:26:45,266 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-07 00:26:45,266 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-07 00:26:45,267 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-07 00:26:45,268 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-07 00:26:45,268 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-07 00:26:45,269 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-07 00:26:45,269 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-07 00:26:45,270 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-12-07 00:26:45,300 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-07 00:26:45,300 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-07 00:26:45,300 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-07 00:26:45,300 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-07 00:26:45,301 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-07 00:26:45,302 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-07 00:26:45,302 INFO L138 SettingsManager]: * Use SBE=true [2021-12-07 00:26:45,302 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-07 00:26:45,302 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-07 00:26:45,302 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-07 00:26:45,302 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-07 00:26:45,303 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-07 00:26:45,303 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-07 00:26:45,303 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-07 00:26:45,303 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-07 00:26:45,303 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-07 00:26:45,304 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-07 00:26:45,304 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-07 00:26:45,304 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-07 00:26:45,304 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-07 00:26:45,304 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-07 00:26:45,304 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-07 00:26:45,305 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-07 00:26:45,305 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-07 00:26:45,305 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-07 00:26:45,305 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-07 00:26:45,305 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-07 00:26:45,306 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-07 00:26:45,306 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-07 00:26:45,307 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-07 00:26:45,307 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_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 337340cdf38da99928295b0c576766fb8f09c8634f9763511165b0f7240edd89 [2021-12-07 00:26:45,478 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-07 00:26:45,497 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-07 00:26:45,498 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-07 00:26:45,499 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-07 00:26:45,500 INFO L275 PluginConnector]: CDTParser initialized [2021-12-07 00:26:45,501 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/termination-memory-alloca/java_Continue1-alloca.i [2021-12-07 00:26:45,544 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/data/ec3f167b7/910001ed0ead4edd8e92aecfe25f6262/FLAGf2c3d32e4 [2021-12-07 00:26:45,955 INFO L306 CDTParser]: Found 1 translation units. [2021-12-07 00:26:45,956 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/sv-benchmarks/c/termination-memory-alloca/java_Continue1-alloca.i [2021-12-07 00:26:45,965 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/data/ec3f167b7/910001ed0ead4edd8e92aecfe25f6262/FLAGf2c3d32e4 [2021-12-07 00:26:45,978 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/data/ec3f167b7/910001ed0ead4edd8e92aecfe25f6262 [2021-12-07 00:26:45,980 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-07 00:26:45,981 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-07 00:26:45,982 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-07 00:26:45,982 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-07 00:26:45,985 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-07 00:26:45,985 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:26:45" (1/1) ... [2021-12-07 00:26:45,986 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2435e3de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:26:45, skipping insertion in model container [2021-12-07 00:26:45,986 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:26:45" (1/1) ... [2021-12-07 00:26:45,991 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-07 00:26:46,023 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-07 00:26:46,225 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 00:26:46,231 INFO L203 MainTranslator]: Completed pre-run [2021-12-07 00:26:46,264 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 00:26:46,287 INFO L208 MainTranslator]: Completed translation [2021-12-07 00:26:46,287 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:26:46 WrapperNode [2021-12-07 00:26:46,287 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-07 00:26:46,288 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-07 00:26:46,288 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-07 00:26:46,288 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-07 00:26:46,294 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:26:46" (1/1) ... [2021-12-07 00:26:46,302 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:26:46" (1/1) ... [2021-12-07 00:26:46,316 INFO L137 Inliner]: procedures = 109, calls = 17, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 45 [2021-12-07 00:26:46,316 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-07 00:26:46,317 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-07 00:26:46,317 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-07 00:26:46,317 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-07 00:26:46,323 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:26:46" (1/1) ... [2021-12-07 00:26:46,323 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:26:46" (1/1) ... [2021-12-07 00:26:46,325 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:26:46" (1/1) ... [2021-12-07 00:26:46,325 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:26:46" (1/1) ... [2021-12-07 00:26:46,328 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:26:46" (1/1) ... [2021-12-07 00:26:46,331 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:26:46" (1/1) ... [2021-12-07 00:26:46,332 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:26:46" (1/1) ... [2021-12-07 00:26:46,333 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-07 00:26:46,334 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-07 00:26:46,334 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-07 00:26:46,334 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-07 00:26:46,335 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:26:46" (1/1) ... [2021-12-07 00:26:46,340 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:26:46,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:26:46,359 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:26:46,361 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-12-07 00:26:46,389 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-07 00:26:46,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-07 00:26:46,389 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-07 00:26:46,389 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-07 00:26:46,389 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-07 00:26:46,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-07 00:26:46,457 INFO L236 CfgBuilder]: Building ICFG [2021-12-07 00:26:46,458 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-07 00:26:46,530 INFO L277 CfgBuilder]: Performing block encoding [2021-12-07 00:26:46,534 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-07 00:26:46,534 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-07 00:26:46,536 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:26:46 BoogieIcfgContainer [2021-12-07 00:26:46,536 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-07 00:26:46,536 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-07 00:26:46,537 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-07 00:26:46,539 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-07 00:26:46,540 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-07 00:26:46,540 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 12:26:45" (1/3) ... [2021-12-07 00:26:46,540 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@ed1349b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 12:26:46, skipping insertion in model container [2021-12-07 00:26:46,540 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-07 00:26:46,541 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:26:46" (2/3) ... [2021-12-07 00:26:46,541 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@ed1349b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 12:26:46, skipping insertion in model container [2021-12-07 00:26:46,541 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-07 00:26:46,541 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:26:46" (3/3) ... [2021-12-07 00:26:46,542 INFO L388 chiAutomizerObserver]: Analyzing ICFG java_Continue1-alloca.i [2021-12-07 00:26:46,574 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-07 00:26:46,575 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-07 00:26:46,575 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-07 00:26:46,575 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-07 00:26:46,575 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-07 00:26:46,575 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-07 00:26:46,575 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-07 00:26:46,575 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-07 00:26:46,585 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 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) [2021-12-07 00:26:46,598 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-07 00:26:46,598 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-07 00:26:46,598 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-07 00:26:46,602 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-07 00:26:46,603 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-12-07 00:26:46,603 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-07 00:26:46,603 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 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) [2021-12-07 00:26:46,604 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-07 00:26:46,604 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-07 00:26:46,604 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-07 00:26:46,604 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-07 00:26:46,605 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-12-07 00:26:46,609 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~mem5#1, main_#t~post6#1, main_#t~mem7#1, main_#t~mem8#1, main_#t~post9#1, main_#t~mem4#1, main_#t~mem10#1, main_~i~0#1.base, main_~i~0#1.offset, main_~c~0#1.base, main_~c~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~i~0#1.base, main_~i~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~c~0#1.base, main_~c~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;call write~int(0, main_~i~0#1.base, main_~i~0#1.offset, 4);call write~int(0, main_~c~0#1.base, main_~c~0#1.offset, 4); 5#L552-3true [2021-12-07 00:26:46,610 INFO L793 eck$LassoCheckResult]: Loop: 5#L552-3true goto; 8#L554-1true call main_#t~mem4#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 10#L552-1true assume !!(main_#t~mem4#1 < 20);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4);main_#t~post6#1 := main_#t~mem5#1;call write~int(1 + main_#t~post6#1, main_~i~0#1.base, main_~i~0#1.offset, 4);havoc main_#t~mem5#1;havoc main_#t~post6#1;call main_#t~mem7#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 11#L554true assume !(main_#t~mem7#1 <= 10);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int(main_~c~0#1.base, main_~c~0#1.offset, 4);main_#t~post9#1 := main_#t~mem8#1;call write~int(1 + main_#t~post9#1, main_~c~0#1.base, main_~c~0#1.offset, 4);havoc main_#t~mem8#1;havoc main_#t~post9#1; 5#L552-3true [2021-12-07 00:26:46,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:26:46,614 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-12-07 00:26:46,620 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:26:46,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521001027] [2021-12-07 00:26:46,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:26:46,622 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:26:46,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:26:46,702 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 00:26:46,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:26:46,729 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 00:26:46,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:26:46,731 INFO L85 PathProgramCache]: Analyzing trace with hash 1109383, now seen corresponding path program 1 times [2021-12-07 00:26:46,732 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:26:46,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156174511] [2021-12-07 00:26:46,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:26:46,732 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:26:46,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:26:46,744 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 00:26:46,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:26:46,754 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 00:26:46,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:26:46,756 INFO L85 PathProgramCache]: Analyzing trace with hash 889536585, now seen corresponding path program 1 times [2021-12-07 00:26:46,756 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:26:46,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99499571] [2021-12-07 00:26:46,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:26:46,756 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:26:46,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:26:46,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:26:46,871 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:26:46,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99499571] [2021-12-07 00:26:46,872 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99499571] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:26:46,872 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:26:46,872 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-07 00:26:46,872 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962944369] [2021-12-07 00:26:46,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:26:46,971 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:26:46,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-07 00:26:46,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-07 00:26:46,995 INFO L87 Difference]: Start difference. First operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 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 5 states, 4 states have (on average 1.5) internal successors, (6), 5 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) [2021-12-07 00:26:47,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:26:47,017 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2021-12-07 00:26:47,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 00:26:47,021 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 15 transitions. [2021-12-07 00:26:47,022 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-07 00:26:47,025 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 10 states and 11 transitions. [2021-12-07 00:26:47,025 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2021-12-07 00:26:47,026 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2021-12-07 00:26:47,026 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 11 transitions. [2021-12-07 00:26:47,026 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-07 00:26:47,026 INFO L681 BuchiCegarLoop]: Abstraction has 10 states and 11 transitions. [2021-12-07 00:26:47,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 11 transitions. [2021-12-07 00:26:47,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2021-12-07 00:26:47,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.1) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:26:47,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2021-12-07 00:26:47,044 INFO L704 BuchiCegarLoop]: Abstraction has 10 states and 11 transitions. [2021-12-07 00:26:47,044 INFO L587 BuchiCegarLoop]: Abstraction has 10 states and 11 transitions. [2021-12-07 00:26:47,044 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-07 00:26:47,044 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 11 transitions. [2021-12-07 00:26:47,045 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-07 00:26:47,045 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-07 00:26:47,045 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-07 00:26:47,045 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-12-07 00:26:47,045 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-07 00:26:47,045 INFO L791 eck$LassoCheckResult]: Stem: 39#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 40#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~mem5#1, main_#t~post6#1, main_#t~mem7#1, main_#t~mem8#1, main_#t~post9#1, main_#t~mem4#1, main_#t~mem10#1, main_~i~0#1.base, main_~i~0#1.offset, main_~c~0#1.base, main_~c~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~i~0#1.base, main_~i~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~c~0#1.base, main_~c~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;call write~int(0, main_~i~0#1.base, main_~i~0#1.offset, 4);call write~int(0, main_~c~0#1.base, main_~c~0#1.offset, 4); 37#L552-3 goto; 38#L554-1 call main_#t~mem4#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 41#L552-1 assume !!(main_#t~mem4#1 < 20);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4);main_#t~post6#1 := main_#t~mem5#1;call write~int(1 + main_#t~post6#1, main_~i~0#1.base, main_~i~0#1.offset, 4);havoc main_#t~mem5#1;havoc main_#t~post6#1;call main_#t~mem7#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 42#L554 assume main_#t~mem7#1 <= 10;havoc main_#t~mem7#1; 43#L554-1 [2021-12-07 00:26:47,045 INFO L793 eck$LassoCheckResult]: Loop: 43#L554-1 call main_#t~mem4#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 46#L552-1 assume !!(main_#t~mem4#1 < 20);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4);main_#t~post6#1 := main_#t~mem5#1;call write~int(1 + main_#t~post6#1, main_~i~0#1.base, main_~i~0#1.offset, 4);havoc main_#t~mem5#1;havoc main_#t~post6#1;call main_#t~mem7#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 44#L554 assume main_#t~mem7#1 <= 10;havoc main_#t~mem7#1; 43#L554-1 [2021-12-07 00:26:47,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:26:47,046 INFO L85 PathProgramCache]: Analyzing trace with hash 889536583, now seen corresponding path program 1 times [2021-12-07 00:26:47,046 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:26:47,046 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678850369] [2021-12-07 00:26:47,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:26:47,046 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:26:47,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:26:47,063 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 00:26:47,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:26:47,077 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 00:26:47,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:26:47,078 INFO L85 PathProgramCache]: Analyzing trace with hash 36905, now seen corresponding path program 1 times [2021-12-07 00:26:47,078 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:26:47,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286708562] [2021-12-07 00:26:47,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:26:47,078 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:26:47,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:26:47,084 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 00:26:47,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:26:47,089 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 00:26:47,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:26:47,090 INFO L85 PathProgramCache]: Analyzing trace with hash 236134947, now seen corresponding path program 2 times [2021-12-07 00:26:47,090 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:26:47,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695618074] [2021-12-07 00:26:47,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:26:47,090 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:26:47,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:26:47,107 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 00:26:47,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:26:47,121 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 00:26:47,410 INFO L210 LassoAnalysis]: Preferences: [2021-12-07 00:26:47,410 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-07 00:26:47,410 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-07 00:26:47,410 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-07 00:26:47,411 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-07 00:26:47,411 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:26:47,411 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-07 00:26:47,411 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-07 00:26:47,411 INFO L133 ssoRankerPreferences]: Filename of dumped script: java_Continue1-alloca.i_Iteration2_Lasso [2021-12-07 00:26:47,411 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-07 00:26:47,411 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-07 00:26:47,430 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:26:47,433 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:26:47,435 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:26:47,529 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:26:47,530 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:26:47,531 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:26:47,533 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:26:47,534 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:26:47,536 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:26:47,537 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:26:47,539 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:26:47,540 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:26:47,542 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:26:47,543 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:26:47,545 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:26:47,546 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:26:47,684 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-07 00:26:47,687 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-07 00:26:47,688 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:26:47,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:26:47,689 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:26:47,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-12-07 00:26:47,691 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 [2021-12-07 00:26:47,698 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:26:47,698 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 00:26:47,699 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:26:47,699 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:26:47,699 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:26:47,700 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 00:26:47,701 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 00:26:47,702 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 00:26:47,721 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-12-07 00:26:47,722 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:26:47,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:26:47,723 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:26:47,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-12-07 00:26:47,724 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 [2021-12-07 00:26:47,731 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:26:47,731 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 00:26:47,731 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:26:47,731 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:26:47,731 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:26:47,732 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 00:26:47,732 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 00:26:47,733 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 00:26:47,751 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2021-12-07 00:26:47,751 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:26:47,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:26:47,752 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:26:47,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-12-07 00:26:47,753 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 [2021-12-07 00:26:47,761 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:26:47,761 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:26:47,761 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:26:47,761 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:26:47,766 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 00:26:47,767 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 00:26:47,773 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 00:26:47,792 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2021-12-07 00:26:47,792 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:26:47,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:26:47,793 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:26:47,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-12-07 00:26:47,799 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 [2021-12-07 00:26:47,806 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:26:47,806 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:26:47,806 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:26:47,807 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:26:47,808 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 00:26:47,808 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 00:26:47,811 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 00:26:47,829 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2021-12-07 00:26:47,829 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:26:47,829 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:26:47,830 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:26:47,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-12-07 00:26:47,831 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 [2021-12-07 00:26:47,838 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:26:47,838 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:26:47,838 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:26:47,838 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:26:47,843 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 00:26:47,843 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 00:26:47,850 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 00:26:47,869 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-12-07 00:26:47,869 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:26:47,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:26:47,870 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:26:47,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-12-07 00:26:47,871 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 [2021-12-07 00:26:47,878 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:26:47,878 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:26:47,879 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:26:47,879 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:26:47,880 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 00:26:47,880 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 00:26:47,883 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 00:26:47,901 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2021-12-07 00:26:47,902 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:26:47,902 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:26:47,903 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:26:47,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-12-07 00:26:47,904 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 [2021-12-07 00:26:47,911 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:26:47,911 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:26:47,911 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:26:47,911 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:26:47,913 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 00:26:47,913 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 00:26:47,918 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 00:26:47,950 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2021-12-07 00:26:47,951 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:26:47,951 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:26:47,952 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:26:47,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-12-07 00:26:47,953 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 [2021-12-07 00:26:47,960 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:26:47,960 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:26:47,960 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:26:47,960 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:26:47,963 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 00:26:47,963 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 00:26:47,968 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-07 00:26:47,979 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2021-12-07 00:26:47,979 INFO L444 ModelExtractionUtils]: 0 out of 7 variables were initially zero. Simplification set additionally 4 variables to zero. [2021-12-07 00:26:47,980 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:26:47,980 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:26:47,981 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:26:47,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-12-07 00:26:47,982 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-07 00:26:47,991 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-07 00:26:47,991 INFO L513 LassoAnalysis]: Proved termination. [2021-12-07 00:26:47,991 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~i~0#1.base) ULTIMATE.start_main_~i~0#1.offset)_1) = -2*v_rep(select (select #memory_int ULTIMATE.start_main_~i~0#1.base) ULTIMATE.start_main_~i~0#1.offset)_1 + 19 Supporting invariants [] [2021-12-07 00:26:48,010 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2021-12-07 00:26:48,042 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2021-12-07 00:26:48,044 INFO L297 tatePredicateManager]: 10 out of 10 supporting invariants were superfluous and have been removed [2021-12-07 00:26:48,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:26:48,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:26:48,080 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-07 00:26:48,082 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:26:48,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:26:48,100 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-07 00:26:48,101 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:26:48,146 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 20 [2021-12-07 00:26:48,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:26:48,162 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-12-07 00:26:48,162 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 11 transitions. cyclomatic complexity: 2 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:26:48,193 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 11 transitions. cyclomatic complexity: 2. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 17 states and 20 transitions. Complement of second has 6 states. [2021-12-07 00:26:48,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-12-07 00:26:48,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:26:48,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2021-12-07 00:26:48,196 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 6 letters. Loop has 3 letters. [2021-12-07 00:26:48,197 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-07 00:26:48,197 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 9 letters. Loop has 3 letters. [2021-12-07 00:26:48,197 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-07 00:26:48,197 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 6 letters. Loop has 6 letters. [2021-12-07 00:26:48,197 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-07 00:26:48,197 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 20 transitions. [2021-12-07 00:26:48,198 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-07 00:26:48,199 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 17 states and 20 transitions. [2021-12-07 00:26:48,199 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2021-12-07 00:26:48,199 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2021-12-07 00:26:48,199 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 20 transitions. [2021-12-07 00:26:48,199 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-07 00:26:48,199 INFO L681 BuchiCegarLoop]: Abstraction has 17 states and 20 transitions. [2021-12-07 00:26:48,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 20 transitions. [2021-12-07 00:26:48,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2021-12-07 00:26:48,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.1875) internal successors, (19), 15 states have internal predecessors, (19), 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) [2021-12-07 00:26:48,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2021-12-07 00:26:48,201 INFO L704 BuchiCegarLoop]: Abstraction has 16 states and 19 transitions. [2021-12-07 00:26:48,201 INFO L587 BuchiCegarLoop]: Abstraction has 16 states and 19 transitions. [2021-12-07 00:26:48,201 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-07 00:26:48,201 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 19 transitions. [2021-12-07 00:26:48,201 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-07 00:26:48,201 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-07 00:26:48,201 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-07 00:26:48,202 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1] [2021-12-07 00:26:48,202 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-12-07 00:26:48,202 INFO L791 eck$LassoCheckResult]: Stem: 158#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 159#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~mem5#1, main_#t~post6#1, main_#t~mem7#1, main_#t~mem8#1, main_#t~post9#1, main_#t~mem4#1, main_#t~mem10#1, main_~i~0#1.base, main_~i~0#1.offset, main_~c~0#1.base, main_~c~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~i~0#1.base, main_~i~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~c~0#1.base, main_~c~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;call write~int(0, main_~i~0#1.base, main_~i~0#1.offset, 4);call write~int(0, main_~c~0#1.base, main_~c~0#1.offset, 4); 162#L552-3 goto; 169#L554-1 call main_#t~mem4#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 168#L552-1 assume !!(main_#t~mem4#1 < 20);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4);main_#t~post6#1 := main_#t~mem5#1;call write~int(1 + main_#t~post6#1, main_~i~0#1.base, main_~i~0#1.offset, 4);havoc main_#t~mem5#1;havoc main_#t~post6#1;call main_#t~mem7#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 167#L554 assume main_#t~mem7#1 <= 10;havoc main_#t~mem7#1; 166#L554-1 call main_#t~mem4#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 160#L552-1 [2021-12-07 00:26:48,202 INFO L793 eck$LassoCheckResult]: Loop: 160#L552-1 assume !!(main_#t~mem4#1 < 20);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4);main_#t~post6#1 := main_#t~mem5#1;call write~int(1 + main_#t~post6#1, main_~i~0#1.base, main_~i~0#1.offset, 4);havoc main_#t~mem5#1;havoc main_#t~post6#1;call main_#t~mem7#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 163#L554 assume !(main_#t~mem7#1 <= 10);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int(main_~c~0#1.base, main_~c~0#1.offset, 4);main_#t~post9#1 := main_#t~mem8#1;call write~int(1 + main_#t~post9#1, main_~c~0#1.base, main_~c~0#1.offset, 4);havoc main_#t~mem8#1;havoc main_#t~post9#1; 154#L552-3 goto; 155#L554-1 call main_#t~mem4#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 160#L552-1 [2021-12-07 00:26:48,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:26:48,202 INFO L85 PathProgramCache]: Analyzing trace with hash 1805830304, now seen corresponding path program 3 times [2021-12-07 00:26:48,203 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:26:48,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800237734] [2021-12-07 00:26:48,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:26:48,203 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:26:48,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:26:48,215 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 00:26:48,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:26:48,226 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 00:26:48,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:26:48,226 INFO L85 PathProgramCache]: Analyzing trace with hash 1297543, now seen corresponding path program 2 times [2021-12-07 00:26:48,226 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:26:48,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380669063] [2021-12-07 00:26:48,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:26:48,227 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:26:48,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:26:48,233 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 00:26:48,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:26:48,239 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 00:26:48,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:26:48,240 INFO L85 PathProgramCache]: Analyzing trace with hash -707580506, now seen corresponding path program 1 times [2021-12-07 00:26:48,240 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:26:48,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908646374] [2021-12-07 00:26:48,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:26:48,240 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:26:48,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:26:48,296 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:26:48,297 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:26:48,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908646374] [2021-12-07 00:26:48,297 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908646374] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 00:26:48,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2144392797] [2021-12-07 00:26:48,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:26:48,297 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:26:48,298 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:26:48,298 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 00:26:48,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-12-07 00:26:48,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:26:48,340 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 23 conjunts are in the unsatisfiable core [2021-12-07 00:26:48,342 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:26:48,372 INFO L354 Elim1Store]: treesize reduction 13, result has 58.1 percent of original size [2021-12-07 00:26:48,372 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 46 treesize of output 54 [2021-12-07 00:26:48,392 INFO L354 Elim1Store]: treesize reduction 30, result has 43.4 percent of original size [2021-12-07 00:26:48,392 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 68 [2021-12-07 00:26:48,400 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-12-07 00:26:48,444 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-12-07 00:26:48,470 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-12-07 00:26:48,524 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-12-07 00:26:48,548 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 3 [2021-12-07 00:26:48,585 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 00:26:48,586 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 26 [2021-12-07 00:26:48,619 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2021-12-07 00:26:48,624 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:26:48,625 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 00:26:48,673 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:26:48,673 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2144392797] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 00:26:48,673 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-07 00:26:48,674 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 12 [2021-12-07 00:26:48,674 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804443492] [2021-12-07 00:26:48,674 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-07 00:26:48,733 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:26:48,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-07 00:26:48,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2021-12-07 00:26:48,735 INFO L87 Difference]: Start difference. First operand 16 states and 19 transitions. cyclomatic complexity: 5 Second operand has 12 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 12 states have internal predecessors, (26), 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) [2021-12-07 00:26:48,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:26:48,790 INFO L93 Difference]: Finished difference Result 30 states and 32 transitions. [2021-12-07 00:26:48,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-07 00:26:48,791 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 32 transitions. [2021-12-07 00:26:48,792 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-07 00:26:48,793 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 24 states and 26 transitions. [2021-12-07 00:26:48,793 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2021-12-07 00:26:48,793 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2021-12-07 00:26:48,793 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 26 transitions. [2021-12-07 00:26:48,793 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-07 00:26:48,793 INFO L681 BuchiCegarLoop]: Abstraction has 24 states and 26 transitions. [2021-12-07 00:26:48,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 26 transitions. [2021-12-07 00:26:48,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2021-12-07 00:26:48,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 24 states have (on average 1.0833333333333333) internal successors, (26), 23 states have internal predecessors, (26), 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) [2021-12-07 00:26:48,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 26 transitions. [2021-12-07 00:26:48,795 INFO L704 BuchiCegarLoop]: Abstraction has 24 states and 26 transitions. [2021-12-07 00:26:48,795 INFO L587 BuchiCegarLoop]: Abstraction has 24 states and 26 transitions. [2021-12-07 00:26:48,795 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-12-07 00:26:48,795 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 26 transitions. [2021-12-07 00:26:48,796 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-07 00:26:48,796 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-07 00:26:48,796 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-07 00:26:48,797 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 4, 4, 1, 1, 1] [2021-12-07 00:26:48,797 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-12-07 00:26:48,797 INFO L791 eck$LassoCheckResult]: Stem: 285#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 286#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~mem5#1, main_#t~post6#1, main_#t~mem7#1, main_#t~mem8#1, main_#t~post9#1, main_#t~mem4#1, main_#t~mem10#1, main_~i~0#1.base, main_~i~0#1.offset, main_~c~0#1.base, main_~c~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~i~0#1.base, main_~i~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~c~0#1.base, main_~c~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;call write~int(0, main_~i~0#1.base, main_~i~0#1.offset, 4);call write~int(0, main_~c~0#1.base, main_~c~0#1.offset, 4); 295#L552-3 goto; 304#L554-1 call main_#t~mem4#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 303#L552-1 assume !!(main_#t~mem4#1 < 20);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4);main_#t~post6#1 := main_#t~mem5#1;call write~int(1 + main_#t~post6#1, main_~i~0#1.base, main_~i~0#1.offset, 4);havoc main_#t~mem5#1;havoc main_#t~post6#1;call main_#t~mem7#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 299#L554 assume main_#t~mem7#1 <= 10;havoc main_#t~mem7#1; 291#L554-1 call main_#t~mem4#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 292#L552-1 assume !!(main_#t~mem4#1 < 20);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4);main_#t~post6#1 := main_#t~mem5#1;call write~int(1 + main_#t~post6#1, main_~i~0#1.base, main_~i~0#1.offset, 4);havoc main_#t~mem5#1;havoc main_#t~post6#1;call main_#t~mem7#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 298#L554 assume main_#t~mem7#1 <= 10;havoc main_#t~mem7#1; 293#L554-1 call main_#t~mem4#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 294#L552-1 assume !!(main_#t~mem4#1 < 20);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4);main_#t~post6#1 := main_#t~mem5#1;call write~int(1 + main_#t~post6#1, main_~i~0#1.base, main_~i~0#1.offset, 4);havoc main_#t~mem5#1;havoc main_#t~post6#1;call main_#t~mem7#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 308#L554 assume main_#t~mem7#1 <= 10;havoc main_#t~mem7#1; 307#L554-1 call main_#t~mem4#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 306#L552-1 assume !!(main_#t~mem4#1 < 20);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4);main_#t~post6#1 := main_#t~mem5#1;call write~int(1 + main_#t~post6#1, main_~i~0#1.base, main_~i~0#1.offset, 4);havoc main_#t~mem5#1;havoc main_#t~post6#1;call main_#t~mem7#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 305#L554 assume main_#t~mem7#1 <= 10;havoc main_#t~mem7#1; 301#L554-1 call main_#t~mem4#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 296#L552-1 [2021-12-07 00:26:48,797 INFO L793 eck$LassoCheckResult]: Loop: 296#L552-1 assume !!(main_#t~mem4#1 < 20);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4);main_#t~post6#1 := main_#t~mem5#1;call write~int(1 + main_#t~post6#1, main_~i~0#1.base, main_~i~0#1.offset, 4);havoc main_#t~mem5#1;havoc main_#t~post6#1;call main_#t~mem7#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 297#L554 assume !(main_#t~mem7#1 <= 10);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int(main_~c~0#1.base, main_~c~0#1.offset, 4);main_#t~post9#1 := main_#t~mem8#1;call write~int(1 + main_#t~post9#1, main_~c~0#1.base, main_~c~0#1.offset, 4);havoc main_#t~mem8#1;havoc main_#t~post9#1; 287#L552-3 goto; 288#L554-1 call main_#t~mem4#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 296#L552-1 [2021-12-07 00:26:48,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:26:48,797 INFO L85 PathProgramCache]: Analyzing trace with hash 703087812, now seen corresponding path program 4 times [2021-12-07 00:26:48,797 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:26:48,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837236896] [2021-12-07 00:26:48,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:26:48,798 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:26:48,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:26:48,814 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 00:26:48,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:26:48,831 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 00:26:48,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:26:48,831 INFO L85 PathProgramCache]: Analyzing trace with hash 1297543, now seen corresponding path program 3 times [2021-12-07 00:26:48,832 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:26:48,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310757565] [2021-12-07 00:26:48,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:26:48,832 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:26:48,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:26:48,837 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 00:26:48,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:26:48,842 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 00:26:48,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:26:48,843 INFO L85 PathProgramCache]: Analyzing trace with hash -1091176502, now seen corresponding path program 2 times [2021-12-07 00:26:48,843 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:26:48,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569205271] [2021-12-07 00:26:48,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:26:48,843 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:26:48,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:26:48,952 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:26:48,952 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:26:48,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569205271] [2021-12-07 00:26:48,953 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569205271] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 00:26:48,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [770985607] [2021-12-07 00:26:48,953 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-07 00:26:48,953 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:26:48,953 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:26:48,954 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 00:26:48,954 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-12-07 00:26:49,002 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-07 00:26:49,002 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-07 00:26:49,004 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 30 conjunts are in the unsatisfiable core [2021-12-07 00:26:49,006 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:26:49,017 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 14 [2021-12-07 00:26:49,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:26:49,026 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-12-07 00:26:49,029 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2021-12-07 00:26:49,044 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2021-12-07 00:26:49,057 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2021-12-07 00:26:49,071 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2021-12-07 00:26:49,083 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2021-12-07 00:26:49,096 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2021-12-07 00:26:49,100 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:26:49,100 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 00:26:49,193 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:26:49,193 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [770985607] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 00:26:49,193 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-07 00:26:49,194 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 8, 8] total 20 [2021-12-07 00:26:49,194 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791703562] [2021-12-07 00:26:49,194 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-07 00:26:49,248 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:26:49,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-12-07 00:26:49,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=148, Invalid=232, Unknown=0, NotChecked=0, Total=380 [2021-12-07 00:26:49,250 INFO L87 Difference]: Start difference. First operand 24 states and 26 transitions. cyclomatic complexity: 4 Second operand has 20 states, 20 states have (on average 2.4) internal successors, (48), 20 states have internal predecessors, (48), 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) [2021-12-07 00:26:49,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:26:49,335 INFO L93 Difference]: Finished difference Result 54 states and 56 transitions. [2021-12-07 00:26:49,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-12-07 00:26:49,336 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 54 states and 56 transitions. [2021-12-07 00:26:49,337 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-07 00:26:49,338 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 54 states to 42 states and 44 transitions. [2021-12-07 00:26:49,338 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2021-12-07 00:26:49,338 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2021-12-07 00:26:49,338 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 44 transitions. [2021-12-07 00:26:49,338 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-07 00:26:49,338 INFO L681 BuchiCegarLoop]: Abstraction has 42 states and 44 transitions. [2021-12-07 00:26:49,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states and 44 transitions. [2021-12-07 00:26:49,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2021-12-07 00:26:49,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 42 states have (on average 1.0476190476190477) internal successors, (44), 41 states have internal predecessors, (44), 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) [2021-12-07 00:26:49,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 44 transitions. [2021-12-07 00:26:49,341 INFO L704 BuchiCegarLoop]: Abstraction has 42 states and 44 transitions. [2021-12-07 00:26:49,341 INFO L587 BuchiCegarLoop]: Abstraction has 42 states and 44 transitions. [2021-12-07 00:26:49,341 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-12-07 00:26:49,341 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 42 states and 44 transitions. [2021-12-07 00:26:49,342 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-07 00:26:49,342 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-07 00:26:49,342 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-07 00:26:49,343 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [11, 10, 10, 1, 1, 1] [2021-12-07 00:26:49,343 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-12-07 00:26:49,343 INFO L791 eck$LassoCheckResult]: Stem: 512#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 513#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~mem5#1, main_#t~post6#1, main_#t~mem7#1, main_#t~mem8#1, main_#t~post9#1, main_#t~mem4#1, main_#t~mem10#1, main_~i~0#1.base, main_~i~0#1.offset, main_~c~0#1.base, main_~c~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~i~0#1.base, main_~i~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~c~0#1.base, main_~c~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;call write~int(0, main_~i~0#1.base, main_~i~0#1.offset, 4);call write~int(0, main_~c~0#1.base, main_~c~0#1.offset, 4); 522#L552-3 goto; 531#L554-1 call main_#t~mem4#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 530#L552-1 assume !!(main_#t~mem4#1 < 20);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4);main_#t~post6#1 := main_#t~mem5#1;call write~int(1 + main_#t~post6#1, main_~i~0#1.base, main_~i~0#1.offset, 4);havoc main_#t~mem5#1;havoc main_#t~post6#1;call main_#t~mem7#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 526#L554 assume main_#t~mem7#1 <= 10;havoc main_#t~mem7#1; 518#L554-1 call main_#t~mem4#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 519#L552-1 assume !!(main_#t~mem4#1 < 20);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4);main_#t~post6#1 := main_#t~mem5#1;call write~int(1 + main_#t~post6#1, main_~i~0#1.base, main_~i~0#1.offset, 4);havoc main_#t~mem5#1;havoc main_#t~post6#1;call main_#t~mem7#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 525#L554 assume main_#t~mem7#1 <= 10;havoc main_#t~mem7#1; 520#L554-1 call main_#t~mem4#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 521#L552-1 assume !!(main_#t~mem4#1 < 20);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4);main_#t~post6#1 := main_#t~mem5#1;call write~int(1 + main_#t~post6#1, main_~i~0#1.base, main_~i~0#1.offset, 4);havoc main_#t~mem5#1;havoc main_#t~post6#1;call main_#t~mem7#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 553#L554 assume main_#t~mem7#1 <= 10;havoc main_#t~mem7#1; 552#L554-1 call main_#t~mem4#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 551#L552-1 assume !!(main_#t~mem4#1 < 20);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4);main_#t~post6#1 := main_#t~mem5#1;call write~int(1 + main_#t~post6#1, main_~i~0#1.base, main_~i~0#1.offset, 4);havoc main_#t~mem5#1;havoc main_#t~post6#1;call main_#t~mem7#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 550#L554 assume main_#t~mem7#1 <= 10;havoc main_#t~mem7#1; 549#L554-1 call main_#t~mem4#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 548#L552-1 assume !!(main_#t~mem4#1 < 20);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4);main_#t~post6#1 := main_#t~mem5#1;call write~int(1 + main_#t~post6#1, main_~i~0#1.base, main_~i~0#1.offset, 4);havoc main_#t~mem5#1;havoc main_#t~post6#1;call main_#t~mem7#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 547#L554 assume main_#t~mem7#1 <= 10;havoc main_#t~mem7#1; 546#L554-1 call main_#t~mem4#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 545#L552-1 assume !!(main_#t~mem4#1 < 20);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4);main_#t~post6#1 := main_#t~mem5#1;call write~int(1 + main_#t~post6#1, main_~i~0#1.base, main_~i~0#1.offset, 4);havoc main_#t~mem5#1;havoc main_#t~post6#1;call main_#t~mem7#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 544#L554 assume main_#t~mem7#1 <= 10;havoc main_#t~mem7#1; 543#L554-1 call main_#t~mem4#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 542#L552-1 assume !!(main_#t~mem4#1 < 20);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4);main_#t~post6#1 := main_#t~mem5#1;call write~int(1 + main_#t~post6#1, main_~i~0#1.base, main_~i~0#1.offset, 4);havoc main_#t~mem5#1;havoc main_#t~post6#1;call main_#t~mem7#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 541#L554 assume main_#t~mem7#1 <= 10;havoc main_#t~mem7#1; 540#L554-1 call main_#t~mem4#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 539#L552-1 assume !!(main_#t~mem4#1 < 20);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4);main_#t~post6#1 := main_#t~mem5#1;call write~int(1 + main_#t~post6#1, main_~i~0#1.base, main_~i~0#1.offset, 4);havoc main_#t~mem5#1;havoc main_#t~post6#1;call main_#t~mem7#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 538#L554 assume main_#t~mem7#1 <= 10;havoc main_#t~mem7#1; 537#L554-1 call main_#t~mem4#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 536#L552-1 assume !!(main_#t~mem4#1 < 20);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4);main_#t~post6#1 := main_#t~mem5#1;call write~int(1 + main_#t~post6#1, main_~i~0#1.base, main_~i~0#1.offset, 4);havoc main_#t~mem5#1;havoc main_#t~post6#1;call main_#t~mem7#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 535#L554 assume main_#t~mem7#1 <= 10;havoc main_#t~mem7#1; 534#L554-1 call main_#t~mem4#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 533#L552-1 assume !!(main_#t~mem4#1 < 20);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4);main_#t~post6#1 := main_#t~mem5#1;call write~int(1 + main_#t~post6#1, main_~i~0#1.base, main_~i~0#1.offset, 4);havoc main_#t~mem5#1;havoc main_#t~post6#1;call main_#t~mem7#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 532#L554 assume main_#t~mem7#1 <= 10;havoc main_#t~mem7#1; 528#L554-1 call main_#t~mem4#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 523#L552-1 [2021-12-07 00:26:49,343 INFO L793 eck$LassoCheckResult]: Loop: 523#L552-1 assume !!(main_#t~mem4#1 < 20);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4);main_#t~post6#1 := main_#t~mem5#1;call write~int(1 + main_#t~post6#1, main_~i~0#1.base, main_~i~0#1.offset, 4);havoc main_#t~mem5#1;havoc main_#t~post6#1;call main_#t~mem7#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 524#L554 assume !(main_#t~mem7#1 <= 10);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int(main_~c~0#1.base, main_~c~0#1.offset, 4);main_#t~post9#1 := main_#t~mem8#1;call write~int(1 + main_#t~post9#1, main_~c~0#1.base, main_~c~0#1.offset, 4);havoc main_#t~mem8#1;havoc main_#t~post9#1; 514#L552-3 goto; 515#L554-1 call main_#t~mem4#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 523#L552-1 [2021-12-07 00:26:49,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:26:49,344 INFO L85 PathProgramCache]: Analyzing trace with hash -1598657468, now seen corresponding path program 5 times [2021-12-07 00:26:49,344 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:26:49,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413326251] [2021-12-07 00:26:49,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:26:49,344 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:26:49,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:26:49,369 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 00:26:49,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:26:49,391 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 00:26:49,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:26:49,392 INFO L85 PathProgramCache]: Analyzing trace with hash 1297543, now seen corresponding path program 4 times [2021-12-07 00:26:49,392 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:26:49,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974148577] [2021-12-07 00:26:49,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:26:49,392 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:26:49,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:26:49,396 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 00:26:49,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:26:49,401 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 00:26:49,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:26:49,401 INFO L85 PathProgramCache]: Analyzing trace with hash 1264869194, now seen corresponding path program 3 times [2021-12-07 00:26:49,401 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:26:49,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779696913] [2021-12-07 00:26:49,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:26:49,402 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:26:49,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:26:49,422 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 00:26:49,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:26:49,453 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 00:26:58,716 WARN L227 SmtUtils]: Spent 9.21s on a formula simplification. DAG size of input: 203 DAG size of output: 165 (called from [L 234] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2021-12-07 00:26:58,824 INFO L210 LassoAnalysis]: Preferences: [2021-12-07 00:26:58,824 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-07 00:26:58,825 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-07 00:26:58,825 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-07 00:26:58,825 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-07 00:26:58,825 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:26:58,825 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-07 00:26:58,825 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-07 00:26:58,825 INFO L133 ssoRankerPreferences]: Filename of dumped script: java_Continue1-alloca.i_Iteration5_Lasso [2021-12-07 00:26:58,825 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-07 00:26:58,825 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-07 00:26:58,827 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:26:58,829 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:26:58,830 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:26:58,831 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:26:58,832 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:26:58,833 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:26:58,834 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:26:58,835 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:26:58,836 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:26:58,837 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:26:58,838 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:26:58,947 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:26:58,948 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 00:26:59,081 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-07 00:26:59,081 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-07 00:26:59,081 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:26:59,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:26:59,107 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:26:59,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-12-07 00:26:59,109 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 00:26:59,116 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:26:59,116 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 00:26:59,116 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:26:59,116 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:26:59,116 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:26:59,116 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 00:26:59,117 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 00:26:59,119 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 00:26:59,137 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2021-12-07 00:26:59,138 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:26:59,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:26:59,138 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:26:59,139 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-12-07 00:26:59,140 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 [2021-12-07 00:26:59,146 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:26:59,147 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:26:59,147 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:26:59,147 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:26:59,148 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 00:26:59,148 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 00:26:59,150 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 00:26:59,169 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-12-07 00:26:59,169 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:26:59,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:26:59,170 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:26:59,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-12-07 00:26:59,171 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 [2021-12-07 00:26:59,178 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:26:59,178 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 00:26:59,178 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:26:59,178 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:26:59,178 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:26:59,178 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 00:26:59,178 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 00:26:59,179 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 00:26:59,198 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2021-12-07 00:26:59,198 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:26:59,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:26:59,198 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:26:59,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-12-07 00:26:59,200 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 [2021-12-07 00:26:59,206 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:26:59,207 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 00:26:59,207 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:26:59,207 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:26:59,207 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:26:59,207 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 00:26:59,207 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 00:26:59,208 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 00:26:59,226 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2021-12-07 00:26:59,226 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:26:59,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:26:59,227 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:26:59,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-12-07 00:26:59,228 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 [2021-12-07 00:26:59,235 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:26:59,235 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:26:59,235 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:26:59,235 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:26:59,236 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 00:26:59,236 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 00:26:59,238 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 00:26:59,257 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-12-07 00:26:59,257 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:26:59,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:26:59,257 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:26:59,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-12-07 00:26:59,258 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 [2021-12-07 00:26:59,265 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:26:59,265 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 00:26:59,265 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:26:59,265 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:26:59,266 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:26:59,266 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 00:26:59,266 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 00:26:59,267 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 00:26:59,285 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-12-07 00:26:59,285 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:26:59,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:26:59,286 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:26:59,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-12-07 00:26:59,287 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 [2021-12-07 00:26:59,294 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:26:59,294 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 00:26:59,294 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:26:59,295 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:26:59,295 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:26:59,295 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 00:26:59,295 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 00:26:59,296 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 00:26:59,314 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2021-12-07 00:26:59,315 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:26:59,315 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:26:59,315 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:26:59,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-12-07 00:26:59,317 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 [2021-12-07 00:26:59,325 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:26:59,325 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:26:59,325 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:26:59,325 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:26:59,326 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 00:26:59,326 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 00:26:59,329 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 00:26:59,347 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2021-12-07 00:26:59,348 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:26:59,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:26:59,348 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:26:59,349 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-12-07 00:26:59,349 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 [2021-12-07 00:26:59,356 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:26:59,356 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 00:26:59,356 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:26:59,356 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:26:59,357 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:26:59,357 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 00:26:59,357 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 00:26:59,358 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 00:26:59,377 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2021-12-07 00:26:59,377 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:26:59,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:26:59,378 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:26:59,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-12-07 00:26:59,380 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 [2021-12-07 00:26:59,386 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:26:59,387 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:26:59,387 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:26:59,387 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:26:59,388 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 00:26:59,388 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 00:26:59,391 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 00:26:59,409 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2021-12-07 00:26:59,409 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:26:59,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:26:59,410 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:26:59,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-12-07 00:26:59,411 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 [2021-12-07 00:26:59,417 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:26:59,417 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:26:59,418 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:26:59,418 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:26:59,419 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 00:26:59,419 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 00:26:59,426 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 00:26:59,444 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2021-12-07 00:26:59,445 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:26:59,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:26:59,445 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:26:59,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-12-07 00:26:59,447 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 [2021-12-07 00:26:59,454 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:26:59,454 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:26:59,454 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:26:59,454 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:26:59,455 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 00:26:59,456 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 00:26:59,458 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 00:26:59,476 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2021-12-07 00:26:59,477 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:26:59,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:26:59,477 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:26:59,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-12-07 00:26:59,478 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 [2021-12-07 00:26:59,486 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:26:59,486 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:26:59,486 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:26:59,486 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:26:59,488 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 00:26:59,488 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 00:26:59,493 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 00:26:59,511 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2021-12-07 00:26:59,511 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:26:59,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:26:59,512 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:26:59,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-12-07 00:26:59,513 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 [2021-12-07 00:26:59,521 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:26:59,521 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:26:59,521 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:26:59,521 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:26:59,523 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 00:26:59,523 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 00:26:59,526 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 00:26:59,543 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2021-12-07 00:26:59,544 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:26:59,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:26:59,545 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:26:59,545 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-12-07 00:26:59,546 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 [2021-12-07 00:26:59,553 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:26:59,553 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:26:59,553 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:26:59,554 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:26:59,555 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 00:26:59,555 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 00:26:59,559 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 00:26:59,577 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-12-07 00:26:59,577 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:26:59,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:26:59,578 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:26:59,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-12-07 00:26:59,579 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 [2021-12-07 00:26:59,586 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:26:59,586 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:26:59,586 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:26:59,586 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:26:59,589 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 00:26:59,589 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 00:26:59,597 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 00:26:59,616 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-12-07 00:26:59,616 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:26:59,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:26:59,617 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:26:59,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-12-07 00:26:59,618 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 [2021-12-07 00:26:59,625 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 00:26:59,625 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 00:26:59,625 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 00:26:59,625 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 00:26:59,627 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 00:26:59,627 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 00:26:59,632 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-07 00:26:59,642 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2021-12-07 00:26:59,642 INFO L444 ModelExtractionUtils]: 1 out of 10 variables were initially zero. Simplification set additionally 4 variables to zero. [2021-12-07 00:26:59,643 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:26:59,643 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:26:59,643 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:26:59,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-12-07 00:26:59,644 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-07 00:26:59,654 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-12-07 00:26:59,654 INFO L513 LassoAnalysis]: Proved termination. [2021-12-07 00:26:59,655 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_#t~mem4#1) = -41*ULTIMATE.start_main_#t~mem4#1 + 790 Supporting invariants [41*v_rep(select (select #memory_int ULTIMATE.start_main_~i~0#1.base) ULTIMATE.start_main_~i~0#1.offset)_2 - 40*ULTIMATE.start_main_#t~mem4#1 >= 0] [2021-12-07 00:26:59,673 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2021-12-07 00:26:59,697 INFO L297 tatePredicateManager]: 11 out of 12 supporting invariants were superfluous and have been removed [2021-12-07 00:26:59,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:26:59,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:26:59,734 INFO L263 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 50 conjunts are in the unsatisfiable core [2021-12-07 00:26:59,737 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:26:59,755 INFO L354 Elim1Store]: treesize reduction 13, result has 58.1 percent of original size [2021-12-07 00:26:59,755 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 46 treesize of output 54 [2021-12-07 00:26:59,772 INFO L354 Elim1Store]: treesize reduction 30, result has 43.4 percent of original size [2021-12-07 00:26:59,772 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 68 [2021-12-07 00:26:59,778 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-12-07 00:26:59,798 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-12-07 00:26:59,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:26:59,824 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-12-07 00:26:59,847 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-12-07 00:26:59,848 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-12-07 00:26:59,874 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 00:26:59,874 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 26 [2021-12-07 00:26:59,902 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2021-12-07 00:26:59,928 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2021-12-07 00:26:59,957 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2021-12-07 00:26:59,990 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2021-12-07 00:27:00,007 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2021-12-07 00:27:00,017 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2021-12-07 00:27:00,048 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2021-12-07 00:27:00,073 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2021-12-07 00:27:00,100 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2021-12-07 00:27:00,133 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2021-12-07 00:27:00,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:27:00,156 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 14 conjunts are in the unsatisfiable core [2021-12-07 00:27:00,156 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:27:00,170 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 20 [2021-12-07 00:27:00,256 INFO L354 Elim1Store]: treesize reduction 16, result has 63.6 percent of original size [2021-12-07 00:27:00,256 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 37 treesize of output 48 [2021-12-07 00:27:12,408 WARN L227 SmtUtils]: Spent 12.03s on a formula simplification that was a NOOP. DAG size: 26 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-12-07 00:27:12,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:27:12,423 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.12 stem predicates 3 loop predicates [2021-12-07 00:27:12,423 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 42 states and 44 transitions. cyclomatic complexity: 4 Second operand has 15 states, 15 states have (on average 2.533333333333333) internal successors, (38), 15 states have internal predecessors, (38), 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) [2021-12-07 00:27:12,532 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 42 states and 44 transitions. cyclomatic complexity: 4. Second operand has 15 states, 15 states have (on average 2.533333333333333) internal successors, (38), 15 states have internal predecessors, (38), 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 42 states and 44 transitions. Complement of second has 4 states. [2021-12-07 00:27:12,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 2 stem states 0 non-accepting loop states 1 accepting loop states [2021-12-07 00:27:12,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 2.533333333333333) internal successors, (38), 15 states have internal predecessors, (38), 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) [2021-12-07 00:27:12,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4 transitions. [2021-12-07 00:27:12,533 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 34 letters. Loop has 4 letters. [2021-12-07 00:27:12,534 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-07 00:27:12,534 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-07 00:27:12,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:27:12,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:27:12,572 INFO L263 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 50 conjunts are in the unsatisfiable core [2021-12-07 00:27:12,576 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:27:12,598 INFO L354 Elim1Store]: treesize reduction 13, result has 58.1 percent of original size [2021-12-07 00:27:12,598 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 46 treesize of output 54 [2021-12-07 00:27:12,616 INFO L354 Elim1Store]: treesize reduction 30, result has 43.4 percent of original size [2021-12-07 00:27:12,616 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 68 [2021-12-07 00:27:12,625 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-12-07 00:27:12,644 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-12-07 00:27:12,680 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-12-07 00:27:12,694 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2021-12-07 00:27:12,721 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 00:27:12,721 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 26 [2021-12-07 00:27:12,745 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2021-12-07 00:27:12,769 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2021-12-07 00:27:12,793 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2021-12-07 00:27:12,819 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2021-12-07 00:27:12,846 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2021-12-07 00:27:12,871 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2021-12-07 00:27:12,898 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2021-12-07 00:27:12,928 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2021-12-07 00:27:12,958 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2021-12-07 00:27:12,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:27:12,983 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 14 conjunts are in the unsatisfiable core [2021-12-07 00:27:12,984 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:27:12,995 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 20 [2021-12-07 00:27:13,062 INFO L354 Elim1Store]: treesize reduction 16, result has 63.6 percent of original size [2021-12-07 00:27:13,062 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 37 treesize of output 48 [2021-12-07 00:27:25,150 WARN L227 SmtUtils]: Spent 12.01s on a formula simplification that was a NOOP. DAG size: 26 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-12-07 00:27:25,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:27:25,161 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.12 stem predicates 3 loop predicates [2021-12-07 00:27:25,161 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 42 states and 44 transitions. cyclomatic complexity: 4 Second operand has 15 states, 15 states have (on average 2.533333333333333) internal successors, (38), 15 states have internal predecessors, (38), 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) [2021-12-07 00:27:25,184 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 42 states and 44 transitions. cyclomatic complexity: 4. Second operand has 15 states, 15 states have (on average 2.533333333333333) internal successors, (38), 15 states have internal predecessors, (38), 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 42 states and 44 transitions. Complement of second has 4 states. [2021-12-07 00:27:25,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 2 stem states 0 non-accepting loop states 1 accepting loop states [2021-12-07 00:27:25,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 2.533333333333333) internal successors, (38), 15 states have internal predecessors, (38), 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) [2021-12-07 00:27:25,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4 transitions. [2021-12-07 00:27:25,186 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 34 letters. Loop has 4 letters. [2021-12-07 00:27:25,186 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-07 00:27:25,186 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-07 00:27:25,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:27:25,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:27:25,223 INFO L263 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 48 conjunts are in the unsatisfiable core [2021-12-07 00:27:25,226 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:27:25,244 INFO L354 Elim1Store]: treesize reduction 13, result has 58.1 percent of original size [2021-12-07 00:27:25,244 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 46 treesize of output 54 [2021-12-07 00:27:25,259 INFO L354 Elim1Store]: treesize reduction 30, result has 43.4 percent of original size [2021-12-07 00:27:25,259 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 68 [2021-12-07 00:27:25,264 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-12-07 00:27:25,281 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-12-07 00:27:25,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-07 00:27:25,297 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-12-07 00:27:25,327 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-12-07 00:27:25,343 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 3 [2021-12-07 00:27:25,370 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 00:27:25,370 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 26 [2021-12-07 00:27:25,397 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 00:27:25,397 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 26 [2021-12-07 00:27:25,426 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2021-12-07 00:27:25,452 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2021-12-07 00:27:25,481 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2021-12-07 00:27:25,508 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2021-12-07 00:27:25,538 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2021-12-07 00:27:25,567 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2021-12-07 00:27:25,598 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2021-12-07 00:27:25,629 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2021-12-07 00:27:25,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:27:25,657 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 14 conjunts are in the unsatisfiable core [2021-12-07 00:27:25,658 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:27:25,671 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 20 [2021-12-07 00:27:38,420 WARN L227 SmtUtils]: Spent 12.72s on a formula simplification that was a NOOP. DAG size: 26 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-12-07 00:27:38,454 INFO L354 Elim1Store]: treesize reduction 16, result has 63.6 percent of original size [2021-12-07 00:27:38,454 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 37 treesize of output 48 [2021-12-07 00:27:50,554 WARN L227 SmtUtils]: Spent 12.03s on a formula simplification that was a NOOP. DAG size: 26 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-12-07 00:27:50,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:27:50,566 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.12 stem predicates 3 loop predicates [2021-12-07 00:27:50,566 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 42 states and 44 transitions. cyclomatic complexity: 4 Second operand has 15 states, 15 states have (on average 2.533333333333333) internal successors, (38), 15 states have internal predecessors, (38), 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) [2021-12-07 00:27:50,770 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 42 states and 44 transitions. cyclomatic complexity: 4. Second operand has 15 states, 15 states have (on average 2.533333333333333) internal successors, (38), 15 states have internal predecessors, (38), 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 42 states and 44 transitions. Complement of second has 23 states. [2021-12-07 00:27:50,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 13 states 12 stem states 0 non-accepting loop states 1 accepting loop states [2021-12-07 00:27:50,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 2.533333333333333) internal successors, (38), 15 states have internal predecessors, (38), 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) [2021-12-07 00:27:50,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 48 transitions. [2021-12-07 00:27:50,772 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states and 48 transitions. Stem has 34 letters. Loop has 4 letters. [2021-12-07 00:27:50,772 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-07 00:27:50,772 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-07 00:27:50,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:27:50,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:27:50,814 INFO L263 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 48 conjunts are in the unsatisfiable core [2021-12-07 00:27:50,817 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:27:50,840 INFO L354 Elim1Store]: treesize reduction 13, result has 58.1 percent of original size [2021-12-07 00:27:50,840 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 46 treesize of output 54 [2021-12-07 00:27:50,860 INFO L354 Elim1Store]: treesize reduction 30, result has 43.4 percent of original size [2021-12-07 00:27:50,860 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 68 [2021-12-07 00:27:50,866 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-12-07 00:27:50,887 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-12-07 00:27:50,924 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-12-07 00:27:50,958 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-12-07 00:27:50,974 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 3 [2021-12-07 00:27:51,005 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 00:27:51,005 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 26 [2021-12-07 00:27:51,034 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2021-12-07 00:27:51,069 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2021-12-07 00:27:51,098 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2021-12-07 00:27:51,127 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2021-12-07 00:27:51,161 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2021-12-07 00:27:51,193 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2021-12-07 00:27:51,225 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2021-12-07 00:27:51,258 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2021-12-07 00:27:51,290 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2021-12-07 00:27:51,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:27:51,320 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 14 conjunts are in the unsatisfiable core [2021-12-07 00:27:51,320 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:27:51,329 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 20 [2021-12-07 00:27:51,406 INFO L354 Elim1Store]: treesize reduction 16, result has 63.6 percent of original size [2021-12-07 00:27:51,406 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 37 treesize of output 48 [2021-12-07 00:28:03,741 WARN L227 SmtUtils]: Spent 12.03s on a formula simplification that was a NOOP. DAG size: 26 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-12-07 00:28:03,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:28:03,754 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and with honda bouncer for loop.12 stem predicates 3 loop predicates [2021-12-07 00:28:03,754 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 42 states and 44 transitions. cyclomatic complexity: 4 Second operand has 15 states, 15 states have (on average 2.533333333333333) internal successors, (38), 15 states have internal predecessors, (38), 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) [2021-12-07 00:28:03,984 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 42 states and 44 transitions. cyclomatic complexity: 4. Second operand has 15 states, 15 states have (on average 2.533333333333333) internal successors, (38), 15 states have internal predecessors, (38), 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 42 states and 44 transitions. Complement of second has 23 states. [2021-12-07 00:28:03,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 13 states 12 stem states 0 non-accepting loop states 1 accepting loop states [2021-12-07 00:28:03,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 2.533333333333333) internal successors, (38), 15 states have internal predecessors, (38), 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) [2021-12-07 00:28:03,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 48 transitions. [2021-12-07 00:28:03,985 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states and 48 transitions. Stem has 34 letters. Loop has 4 letters. [2021-12-07 00:28:03,985 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-07 00:28:03,985 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-07 00:28:04,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:28:04,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:28:04,030 INFO L263 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 50 conjunts are in the unsatisfiable core [2021-12-07 00:28:04,033 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:28:04,056 INFO L354 Elim1Store]: treesize reduction 13, result has 58.1 percent of original size [2021-12-07 00:28:04,056 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 46 treesize of output 54 [2021-12-07 00:28:04,078 INFO L354 Elim1Store]: treesize reduction 30, result has 43.4 percent of original size [2021-12-07 00:28:04,078 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 68 [2021-12-07 00:28:04,083 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-12-07 00:28:04,100 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-12-07 00:28:04,111 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-12-07 00:28:04,149 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-12-07 00:28:04,151 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-12-07 00:28:04,181 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 00:28:04,181 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 26 [2021-12-07 00:28:04,212 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2021-12-07 00:28:04,241 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2021-12-07 00:28:04,278 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2021-12-07 00:28:04,306 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2021-12-07 00:28:04,337 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2021-12-07 00:28:04,371 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2021-12-07 00:28:04,403 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2021-12-07 00:28:04,437 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2021-12-07 00:28:04,472 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2021-12-07 00:28:04,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:28:04,501 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 14 conjunts are in the unsatisfiable core [2021-12-07 00:28:04,502 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:28:04,513 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 20 [2021-12-07 00:28:04,590 INFO L354 Elim1Store]: treesize reduction 16, result has 63.6 percent of original size [2021-12-07 00:28:04,590 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 37 treesize of output 48 [2021-12-07 00:28:16,685 WARN L227 SmtUtils]: Spent 12.02s on a formula simplification that was a NOOP. DAG size: 26 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-12-07 00:28:16,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:28:16,697 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemin loopwithout honda bouncer for stem and without honda bouncer for loop.12 stem predicates 3 loop predicates [2021-12-07 00:28:16,697 INFO L104 BuchiDifferenceFKV]: Start buchiDifferenceFKV. First operand 42 states and 44 transitions. cyclomatic complexity: 4 Second operand has 15 states, 15 states have (on average 2.533333333333333) internal successors, (38), 15 states have internal predecessors, (38), 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) [2021-12-07 00:28:16,942 INFO L108 BuchiDifferenceFKV]: Finished buchiDifferenceFKV. First operand 42 states and 44 transitions. cyclomatic complexity: 4 Second operand has 15 states, 15 states have (on average 2.533333333333333) internal successors, (38), 15 states have internal predecessors, (38), 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 193 states and 247 transitions. Complement of second has 70 states 25 powerset states45 rank states. The highest rank that occured is 1 [2021-12-07 00:28:16,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 14 states 12 stem states 0 non-accepting loop states 2 accepting loop states [2021-12-07 00:28:16,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 2.533333333333333) internal successors, (38), 15 states have internal predecessors, (38), 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) [2021-12-07 00:28:16,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 74 transitions. [2021-12-07 00:28:16,943 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 74 transitions. Stem has 34 letters. Loop has 4 letters. [2021-12-07 00:28:16,944 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-07 00:28:16,944 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-07 00:28:16,945 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer has thrown an exception: java.lang.AssertionError: no settings was sufficient at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoop.refineBuchi(BuchiCegarLoop.java:785) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoop.iterate(BuchiCegarLoop.java:549) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.doTerminationAnalysis(BuchiAutomizerObserver.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.finish(BuchiAutomizerObserver.java:397) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-12-07 00:28:16,947 INFO L158 Benchmark]: Toolchain (without parser) took 90965.68ms. Allocated memory was 100.7MB in the beginning and 121.6MB in the end (delta: 21.0MB). Free memory was 77.6MB in the beginning and 76.2MB in the end (delta: 1.4MB). Peak memory consumption was 24.1MB. Max. memory is 16.1GB. [2021-12-07 00:28:16,947 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 79.7MB. Free memory is still 50.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-07 00:28:16,947 INFO L158 Benchmark]: CACSL2BoogieTranslator took 305.29ms. Allocated memory is still 100.7MB. Free memory was 77.6MB in the beginning and 62.7MB in the end (delta: 14.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-07 00:28:16,947 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.38ms. Allocated memory is still 100.7MB. Free memory was 62.7MB in the beginning and 60.9MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-07 00:28:16,947 INFO L158 Benchmark]: Boogie Preprocessor took 16.21ms. Allocated memory is still 100.7MB. Free memory was 60.9MB in the beginning and 59.8MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-07 00:28:16,948 INFO L158 Benchmark]: RCFGBuilder took 202.22ms. Allocated memory is still 100.7MB. Free memory was 59.8MB in the beginning and 50.2MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-07 00:28:16,948 INFO L158 Benchmark]: BuchiAutomizer took 90409.77ms. Allocated memory was 100.7MB in the beginning and 121.6MB in the end (delta: 21.0MB). Free memory was 50.0MB in the beginning and 76.2MB in the end (delta: -26.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-07 00:28:16,949 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 79.7MB. Free memory is still 50.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 305.29ms. Allocated memory is still 100.7MB. Free memory was 77.6MB in the beginning and 62.7MB in the end (delta: 14.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.38ms. Allocated memory is still 100.7MB. Free memory was 62.7MB in the beginning and 60.9MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 16.21ms. Allocated memory is still 100.7MB. Free memory was 60.9MB in the beginning and 59.8MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 202.22ms. Allocated memory is still 100.7MB. Free memory was 59.8MB in the beginning and 50.2MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 90409.77ms. Allocated memory was 100.7MB in the beginning and 121.6MB in the end (delta: 21.0MB). Free memory was 50.0MB in the beginning and 76.2MB in the end (delta: -26.2MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - ExceptionOrErrorResult: AssertionError: no settings was sufficient de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: AssertionError: no settings was sufficient: de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoop.refineBuchi(BuchiCegarLoop.java:785) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-12-07 00:28:16,973 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2021-12-07 00:28:17,206 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2021-12-07 00:28:17,398 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73763454-72d1-4be3-8c1c-f0087edd9656/bin/uautomizer-DrprNOufMa/config using search string *Termination*64bit*_Bitvector*.epf No suitable settings file found using Termination*64bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: no settings was sufficient