./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_413949c4-9143-456b-bcd7-5b61d0c7d599/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_413949c4-9143-456b-bcd7-5b61d0c7d599/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_413949c4-9143-456b-bcd7-5b61d0c7d599/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_413949c4-9143-456b-bcd7-5b61d0c7d599/bin/uautomizer-J5u9QxTXDZ/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_413949c4-9143-456b-bcd7-5b61d0c7d599/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_413949c4-9143-456b-bcd7-5b61d0c7d599/bin/uautomizer-J5u9QxTXDZ --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 086de8df2449d866ff611c83674a9697b7d09f2a2b1c5c922e46b0c1131a7d5c --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-dbf71c6-m [2022-10-17 10:37:54,234 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:37:54,240 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:37:54,299 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:37:54,300 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:37:54,305 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:37:54,307 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:37:54,310 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:37:54,313 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:37:54,318 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:37:54,319 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:37:54,322 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:37:54,322 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:37:54,324 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:37:54,326 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:37:54,328 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:37:54,329 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:37:54,330 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:37:54,333 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:37:54,339 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:37:54,341 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:37:54,342 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:37:54,346 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:37:54,347 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:37:54,351 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:37:54,352 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:37:54,352 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:37:54,354 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:37:54,354 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:37:54,355 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:37:54,357 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:37:54,358 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:37:54,360 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:37:54,361 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:37:54,362 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:37:54,363 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:37:54,363 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:37:54,364 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:37:54,364 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:37:54,365 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:37:54,365 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:37:54,366 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_413949c4-9143-456b-bcd7-5b61d0c7d599/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-10-17 10:37:54,409 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:37:54,409 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:37:54,409 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:37:54,410 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:37:54,411 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:37:54,411 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:37:54,411 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:37:54,412 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-10-17 10:37:54,412 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-10-17 10:37:54,412 INFO L138 SettingsManager]: * Use old map elimination=false [2022-10-17 10:37:54,413 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-10-17 10:37:54,413 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-10-17 10:37:54,414 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-10-17 10:37:54,414 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:37:54,414 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-17 10:37:54,414 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:37:54,414 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:37:54,415 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-10-17 10:37:54,415 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-10-17 10:37:54,415 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-10-17 10:37:54,415 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:37:54,416 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-10-17 10:37:54,416 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:37:54,417 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-10-17 10:37:54,417 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:37:54,418 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:37:54,418 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:37:54,418 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:37:54,419 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-10-17 10:37:54,420 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_413949c4-9143-456b-bcd7-5b61d0c7d599/bin/uautomizer-J5u9QxTXDZ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_413949c4-9143-456b-bcd7-5b61d0c7d599/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 086de8df2449d866ff611c83674a9697b7d09f2a2b1c5c922e46b0c1131a7d5c [2022-10-17 10:37:54,707 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:37:54,727 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:37:54,730 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:37:54,731 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:37:54,732 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:37:54,733 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_413949c4-9143-456b-bcd7-5b61d0c7d599/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi2.c [2022-10-17 10:37:54,796 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_413949c4-9143-456b-bcd7-5b61d0c7d599/bin/uautomizer-J5u9QxTXDZ/data/00a36403b/1a6326967e1a43b08615eec516bcf502/FLAGd4c5e1056 [2022-10-17 10:37:55,230 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:37:55,231 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_413949c4-9143-456b-bcd7-5b61d0c7d599/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi2.c [2022-10-17 10:37:55,237 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_413949c4-9143-456b-bcd7-5b61d0c7d599/bin/uautomizer-J5u9QxTXDZ/data/00a36403b/1a6326967e1a43b08615eec516bcf502/FLAGd4c5e1056 [2022-10-17 10:37:55,657 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_413949c4-9143-456b-bcd7-5b61d0c7d599/bin/uautomizer-J5u9QxTXDZ/data/00a36403b/1a6326967e1a43b08615eec516bcf502 [2022-10-17 10:37:55,661 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:37:55,663 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:37:55,667 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:37:55,668 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:37:55,671 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:37:55,672 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:37:55" (1/1) ... [2022-10-17 10:37:55,674 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20f20727 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:37:55, skipping insertion in model container [2022-10-17 10:37:55,674 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:37:55" (1/1) ... [2022-10-17 10:37:55,682 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:37:55,698 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:37:55,885 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:37:55,910 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:37:55,924 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:37:55,936 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:37:55,937 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:37:55 WrapperNode [2022-10-17 10:37:55,938 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:37:55,939 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:37:55,939 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:37:55,939 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:37:55,947 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:37:55" (1/1) ... [2022-10-17 10:37:55,954 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:37:55" (1/1) ... [2022-10-17 10:37:55,972 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 23 [2022-10-17 10:37:55,972 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:37:55,974 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:37:55,974 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:37:55,974 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:37:55,983 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:37:55" (1/1) ... [2022-10-17 10:37:55,983 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:37:55" (1/1) ... [2022-10-17 10:37:55,985 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:37:55" (1/1) ... [2022-10-17 10:37:55,985 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:37:55" (1/1) ... [2022-10-17 10:37:55,988 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:37:55" (1/1) ... [2022-10-17 10:37:55,992 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:37:55" (1/1) ... [2022-10-17 10:37:55,993 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:37:55" (1/1) ... [2022-10-17 10:37:55,994 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:37:55" (1/1) ... [2022-10-17 10:37:55,995 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:37:55,996 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:37:55,997 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:37:55,997 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:37:55,998 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:37:55" (1/1) ... [2022-10-17 10:37:56,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:37:56,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_413949c4-9143-456b-bcd7-5b61d0c7d599/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:37:56,031 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_413949c4-9143-456b-bcd7-5b61d0c7d599/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:37:56,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_413949c4-9143-456b-bcd7-5b61d0c7d599/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-10-17 10:37:56,090 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:37:56,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:37:56,162 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:37:56,165 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:37:56,277 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:37:56,287 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:37:56,287 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-17 10:37:56,289 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:37:56 BoogieIcfgContainer [2022-10-17 10:37:56,289 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:37:56,290 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-10-17 10:37:56,290 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-10-17 10:37:56,294 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-10-17 10:37:56,294 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-10-17 10:37:56,295 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 17.10 10:37:55" (1/3) ... [2022-10-17 10:37:56,295 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6d8f995c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.10 10:37:56, skipping insertion in model container [2022-10-17 10:37:56,296 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-10-17 10:37:56,296 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:37:55" (2/3) ... [2022-10-17 10:37:56,297 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6d8f995c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.10 10:37:56, skipping insertion in model container [2022-10-17 10:37:56,301 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-10-17 10:37:56,301 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:37:56" (3/3) ... [2022-10-17 10:37:56,302 INFO L332 chiAutomizerObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-speedpldi2.c [2022-10-17 10:37:56,370 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-10-17 10:37:56,370 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-10-17 10:37:56,371 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-10-17 10:37:56,371 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-10-17 10:37:56,371 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-10-17 10:37:56,371 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-10-17 10:37:56,371 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-10-17 10:37:56,371 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-10-17 10:37:56,376 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:37:56,394 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-10-17 10:37:56,394 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:37:56,394 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:37:56,400 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-10-17 10:37:56,400 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-10-17 10:37:56,400 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-10-17 10:37:56,400 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:37:56,402 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-10-17 10:37:56,402 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:37:56,402 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:37:56,402 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-10-17 10:37:56,402 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-10-17 10:37:56,410 INFO L748 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~m~0#1, main_~n~0#1, main_~v1~0#1, main_~v2~0#1;havoc main_~m~0#1;havoc main_~n~0#1;havoc main_~v1~0#1;havoc main_~v2~0#1;main_~n~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~m~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 3#L17true assume main_~n~0#1 >= 0 && main_~m~0#1 > 0;main_~v1~0#1 := main_~n~0#1;main_~v2~0#1 := 0; 7#L21-2true [2022-10-17 10:37:56,411 INFO L750 eck$LassoCheckResult]: Loop: 7#L21-2true assume !!(main_~v1~0#1 > 0); 5#L21true assume main_~v2~0#1 < main_~m~0#1;main_~v2~0#1 := 1 + main_~v2~0#1;main_~v1~0#1 := main_~v1~0#1 - 1; 7#L21-2true [2022-10-17 10:37:56,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:37:56,417 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2022-10-17 10:37:56,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:37:56,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158021095] [2022-10-17 10:37:56,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:37:56,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:37:56,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:37:56,514 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:37:56,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:37:56,535 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:37:56,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:37:56,538 INFO L85 PathProgramCache]: Analyzing trace with hash 1412, now seen corresponding path program 1 times [2022-10-17 10:37:56,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:37:56,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178726469] [2022-10-17 10:37:56,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:37:56,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:37:56,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:37:56,549 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:37:56,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:37:56,556 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:37:56,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:37:56,558 INFO L85 PathProgramCache]: Analyzing trace with hash 28693989, now seen corresponding path program 1 times [2022-10-17 10:37:56,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:37:56,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817355945] [2022-10-17 10:37:56,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:37:56,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:37:56,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:37:56,570 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:37:56,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:37:56,579 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:37:56,695 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:37:56,695 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:37:56,696 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:37:56,696 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:37:56,696 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-10-17 10:37:56,696 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:37:56,696 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:37:56,696 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:37:56,696 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi2.c_Iteration1_Loop [2022-10-17 10:37:56,697 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:37:56,697 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:37:56,730 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:37:56,764 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:37:56,769 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:37:56,784 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:37:56,875 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:37:56,877 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-10-17 10:37:56,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:37:56,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_413949c4-9143-456b-bcd7-5b61d0c7d599/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:37:56,893 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_413949c4-9143-456b-bcd7-5b61d0c7d599/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:37:56,910 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 10:37:56,910 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:37:56,912 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_413949c4-9143-456b-bcd7-5b61d0c7d599/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-10-17 10:37:56,940 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-10-17 10:37:56,940 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-10-17 10:37:56,977 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_413949c4-9143-456b-bcd7-5b61d0c7d599/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-10-17 10:37:56,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:37:56,978 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_413949c4-9143-456b-bcd7-5b61d0c7d599/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:37:56,979 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_413949c4-9143-456b-bcd7-5b61d0c7d599/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:37:56,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_413949c4-9143-456b-bcd7-5b61d0c7d599/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-10-17 10:37:56,982 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 10:37:56,982 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:37:57,003 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-10-17 10:37:57,003 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-10-17 10:37:57,034 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_413949c4-9143-456b-bcd7-5b61d0c7d599/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-10-17 10:37:57,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:37:57,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_413949c4-9143-456b-bcd7-5b61d0c7d599/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:37:57,035 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_413949c4-9143-456b-bcd7-5b61d0c7d599/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:37:57,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_413949c4-9143-456b-bcd7-5b61d0c7d599/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-10-17 10:37:57,048 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 10:37:57,049 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:37:57,092 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_413949c4-9143-456b-bcd7-5b61d0c7d599/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-10-17 10:37:57,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:37:57,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_413949c4-9143-456b-bcd7-5b61d0c7d599/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:37:57,094 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_413949c4-9143-456b-bcd7-5b61d0c7d599/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:37:57,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_413949c4-9143-456b-bcd7-5b61d0c7d599/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-10-17 10:37:57,095 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-10-17 10:37:57,096 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:37:57,151 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-10-17 10:37:57,157 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_413949c4-9143-456b-bcd7-5b61d0c7d599/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-10-17 10:37:57,158 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:37:57,159 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:37:57,159 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:37:57,159 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:37:57,159 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-10-17 10:37:57,159 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:37:57,159 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:37:57,159 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:37:57,159 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi2.c_Iteration1_Loop [2022-10-17 10:37:57,159 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:37:57,160 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:37:57,162 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:37:57,166 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:37:57,170 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:37:57,178 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:37:57,246 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:37:57,251 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-10-17 10:37:57,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:37:57,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_413949c4-9143-456b-bcd7-5b61d0c7d599/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:37:57,265 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_413949c4-9143-456b-bcd7-5b61d0c7d599/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:37:57,270 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:37:57,280 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:37:57,280 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:37:57,280 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:37:57,280 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:37:57,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_413949c4-9143-456b-bcd7-5b61d0c7d599/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-10-17 10:37:57,288 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:37:57,288 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:37:57,317 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:37:57,381 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_413949c4-9143-456b-bcd7-5b61d0c7d599/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-10-17 10:37:57,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:37:57,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_413949c4-9143-456b-bcd7-5b61d0c7d599/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:37:57,393 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_413949c4-9143-456b-bcd7-5b61d0c7d599/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:37:57,405 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_413949c4-9143-456b-bcd7-5b61d0c7d599/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-10-17 10:37:57,406 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:37:57,417 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:37:57,417 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:37:57,417 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:37:57,417 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:37:57,426 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:37:57,426 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:37:57,453 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:37:57,487 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_413949c4-9143-456b-bcd7-5b61d0c7d599/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-10-17 10:37:57,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:37:57,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_413949c4-9143-456b-bcd7-5b61d0c7d599/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:37:57,529 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_413949c4-9143-456b-bcd7-5b61d0c7d599/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:37:57,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_413949c4-9143-456b-bcd7-5b61d0c7d599/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-10-17 10:37:57,575 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:37:57,583 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:37:57,584 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:37:57,584 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:37:57,584 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:37:57,584 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:37:57,585 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:37:57,585 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:37:57,602 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-10-17 10:37:57,616 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-10-17 10:37:57,617 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-10-17 10:37:57,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:37:57,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_413949c4-9143-456b-bcd7-5b61d0c7d599/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:37:57,625 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_413949c4-9143-456b-bcd7-5b61d0c7d599/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:37:57,632 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-10-17 10:37:57,632 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-10-17 10:37:57,632 INFO L513 LassoAnalysis]: Proved termination. [2022-10-17 10:37:57,632 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~v1~0#1) = 1*ULTIMATE.start_main_~v1~0#1 Supporting invariants [] [2022-10-17 10:37:57,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_413949c4-9143-456b-bcd7-5b61d0c7d599/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-10-17 10:37:57,673 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_413949c4-9143-456b-bcd7-5b61d0c7d599/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-10-17 10:37:57,676 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-10-17 10:37:57,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:37:57,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:37:57,725 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-17 10:37:57,728 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:37:57,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:37:57,748 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-17 10:37:57,748 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:37:57,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:37:57,828 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-10-17 10:37:57,831 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:37:57,887 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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 26 states and 34 transitions. Complement of second has 7 states. [2022-10-17 10:37:57,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-10-17 10:37:57,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:37:57,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2022-10-17 10:37:57,898 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 3 letters. Loop has 2 letters. [2022-10-17 10:37:57,899 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:37:57,899 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 5 letters. Loop has 2 letters. [2022-10-17 10:37:57,899 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:37:57,900 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 3 letters. Loop has 4 letters. [2022-10-17 10:37:57,900 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:37:57,901 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 34 transitions. [2022-10-17 10:37:57,907 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-10-17 10:37:57,912 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 10 states and 13 transitions. [2022-10-17 10:37:57,913 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2022-10-17 10:37:57,913 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2022-10-17 10:37:57,914 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 13 transitions. [2022-10-17 10:37:57,914 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-10-17 10:37:57,915 INFO L218 hiAutomatonCegarLoop]: Abstraction has 10 states and 13 transitions. [2022-10-17 10:37:57,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 13 transitions. [2022-10-17 10:37:57,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2022-10-17 10:37:57,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:37:57,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 12 transitions. [2022-10-17 10:37:57,944 INFO L240 hiAutomatonCegarLoop]: Abstraction has 9 states and 12 transitions. [2022-10-17 10:37:57,944 INFO L428 stractBuchiCegarLoop]: Abstraction has 9 states and 12 transitions. [2022-10-17 10:37:57,944 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-10-17 10:37:57,944 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 12 transitions. [2022-10-17 10:37:57,945 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-10-17 10:37:57,946 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:37:57,946 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:37:57,946 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-10-17 10:37:57,946 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-10-17 10:37:57,947 INFO L748 eck$LassoCheckResult]: Stem: 78#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 79#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~m~0#1, main_~n~0#1, main_~v1~0#1, main_~v2~0#1;havoc main_~m~0#1;havoc main_~n~0#1;havoc main_~v1~0#1;havoc main_~v2~0#1;main_~n~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~m~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 76#L17 assume main_~n~0#1 >= 0 && main_~m~0#1 > 0;main_~v1~0#1 := main_~n~0#1;main_~v2~0#1 := 0; 77#L21-2 assume !!(main_~v1~0#1 > 0); 80#L21 [2022-10-17 10:37:57,947 INFO L750 eck$LassoCheckResult]: Loop: 80#L21 assume !(main_~v2~0#1 < main_~m~0#1);main_~v2~0#1 := 0; 81#L21-2 assume !!(main_~v1~0#1 > 0); 80#L21 [2022-10-17 10:37:57,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:37:57,953 INFO L85 PathProgramCache]: Analyzing trace with hash 925612, now seen corresponding path program 1 times [2022-10-17 10:37:57,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:37:57,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845339402] [2022-10-17 10:37:57,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:37:57,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:37:57,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:37:57,968 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:37:57,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:37:57,983 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:37:57,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:37:57,984 INFO L85 PathProgramCache]: Analyzing trace with hash 1564, now seen corresponding path program 1 times [2022-10-17 10:37:57,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:37:57,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309930994] [2022-10-17 10:37:57,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:37:57,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:37:58,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:37:58,005 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:37:58,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:37:58,011 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:37:58,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:37:58,015 INFO L85 PathProgramCache]: Analyzing trace with hash 889513735, now seen corresponding path program 1 times [2022-10-17 10:37:58,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:37:58,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249355325] [2022-10-17 10:37:58,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:37:58,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:37:58,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:37:58,113 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:37:58,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:37:58,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249355325] [2022-10-17 10:37:58,114 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249355325] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:37:58,115 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:37:58,115 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 10:37:58,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522628152] [2022-10-17 10:37:58,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:37:58,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:37:58,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:37:58,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:37:58,150 INFO L87 Difference]: Start difference. First operand 9 states and 12 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:37:58,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:37:58,162 INFO L93 Difference]: Finished difference Result 11 states and 13 transitions. [2022-10-17 10:37:58,162 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 13 transitions. [2022-10-17 10:37:58,163 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-10-17 10:37:58,165 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 10 states and 12 transitions. [2022-10-17 10:37:58,165 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2022-10-17 10:37:58,165 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2022-10-17 10:37:58,165 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 12 transitions. [2022-10-17 10:37:58,165 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-10-17 10:37:58,166 INFO L218 hiAutomatonCegarLoop]: Abstraction has 10 states and 12 transitions. [2022-10-17 10:37:58,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 12 transitions. [2022-10-17 10:37:58,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2022-10-17 10:37:58,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.2) 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) [2022-10-17 10:37:58,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2022-10-17 10:37:58,168 INFO L240 hiAutomatonCegarLoop]: Abstraction has 10 states and 12 transitions. [2022-10-17 10:37:58,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:37:58,170 INFO L428 stractBuchiCegarLoop]: Abstraction has 10 states and 12 transitions. [2022-10-17 10:37:58,170 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-10-17 10:37:58,170 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 12 transitions. [2022-10-17 10:37:58,171 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-10-17 10:37:58,172 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:37:58,172 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:37:58,172 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1] [2022-10-17 10:37:58,172 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-10-17 10:37:58,173 INFO L748 eck$LassoCheckResult]: Stem: 106#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 107#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~m~0#1, main_~n~0#1, main_~v1~0#1, main_~v2~0#1;havoc main_~m~0#1;havoc main_~n~0#1;havoc main_~v1~0#1;havoc main_~v2~0#1;main_~n~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~m~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 104#L17 assume main_~n~0#1 >= 0 && main_~m~0#1 > 0;main_~v1~0#1 := main_~n~0#1;main_~v2~0#1 := 0; 105#L21-2 assume !!(main_~v1~0#1 > 0); 110#L21 assume main_~v2~0#1 < main_~m~0#1;main_~v2~0#1 := 1 + main_~v2~0#1;main_~v1~0#1 := main_~v1~0#1 - 1; 111#L21-2 assume !!(main_~v1~0#1 > 0); 108#L21 [2022-10-17 10:37:58,173 INFO L750 eck$LassoCheckResult]: Loop: 108#L21 assume !(main_~v2~0#1 < main_~m~0#1);main_~v2~0#1 := 0; 109#L21-2 assume !!(main_~v1~0#1 > 0); 108#L21 [2022-10-17 10:37:58,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:37:58,173 INFO L85 PathProgramCache]: Analyzing trace with hash 889513673, now seen corresponding path program 2 times [2022-10-17 10:37:58,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:37:58,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811660646] [2022-10-17 10:37:58,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:37:58,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:37:58,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:37:58,198 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:37:58,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:37:58,204 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:37:58,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:37:58,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1564, now seen corresponding path program 2 times [2022-10-17 10:37:58,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:37:58,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880283981] [2022-10-17 10:37:58,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:37:58,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:37:58,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:37:58,211 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:37:58,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:37:58,217 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:37:58,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:37:58,219 INFO L85 PathProgramCache]: Analyzing trace with hash 124148452, now seen corresponding path program 1 times [2022-10-17 10:37:58,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:37:58,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955960935] [2022-10-17 10:37:58,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:37:58,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:37:58,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:37:58,230 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:37:58,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:37:58,246 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:37:58,368 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:37:58,368 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:37:58,368 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:37:58,369 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:37:58,369 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-10-17 10:37:58,369 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:37:58,369 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:37:58,369 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:37:58,369 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi2.c_Iteration3_Lasso [2022-10-17 10:37:58,369 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:37:58,370 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:37:58,377 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:37:58,381 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:37:58,384 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:37:58,395 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:37:58,398 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:37:58,401 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:37:58,407 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:37:58,485 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:37:58,485 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-10-17 10:37:58,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:37:58,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_413949c4-9143-456b-bcd7-5b61d0c7d599/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:37:58,489 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_413949c4-9143-456b-bcd7-5b61d0c7d599/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:37:58,498 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 10:37:58,498 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:37:58,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_413949c4-9143-456b-bcd7-5b61d0c7d599/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-10-17 10:37:58,529 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-10-17 10:37:58,529 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-10-17 10:37:58,568 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_413949c4-9143-456b-bcd7-5b61d0c7d599/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-10-17 10:37:58,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:37:58,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_413949c4-9143-456b-bcd7-5b61d0c7d599/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:37:58,570 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_413949c4-9143-456b-bcd7-5b61d0c7d599/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:37:58,576 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 10:37:58,576 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:37:58,585 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_413949c4-9143-456b-bcd7-5b61d0c7d599/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-10-17 10:37:58,606 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-10-17 10:37:58,606 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1#1=0} Honda state: {ULTIMATE.start_main_#t~nondet1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-10-17 10:37:58,644 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_413949c4-9143-456b-bcd7-5b61d0c7d599/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-10-17 10:37:58,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:37:58,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_413949c4-9143-456b-bcd7-5b61d0c7d599/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:37:58,647 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_413949c4-9143-456b-bcd7-5b61d0c7d599/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:37:58,698 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 10:37:58,698 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:37:58,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_413949c4-9143-456b-bcd7-5b61d0c7d599/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-10-17 10:37:58,767 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_413949c4-9143-456b-bcd7-5b61d0c7d599/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-10-17 10:37:58,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:37:58,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_413949c4-9143-456b-bcd7-5b61d0c7d599/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:37:58,769 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_413949c4-9143-456b-bcd7-5b61d0c7d599/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:37:58,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_413949c4-9143-456b-bcd7-5b61d0c7d599/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-10-17 10:37:58,773 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-10-17 10:37:58,773 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:37:58,906 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-10-17 10:37:58,909 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_413949c4-9143-456b-bcd7-5b61d0c7d599/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-10-17 10:37:58,910 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:37:58,910 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:37:58,910 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:37:58,910 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:37:58,910 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-10-17 10:37:58,910 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:37:58,910 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:37:58,910 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:37:58,910 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi2.c_Iteration3_Lasso [2022-10-17 10:37:58,910 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:37:58,910 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:37:58,912 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:37:58,920 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:37:58,924 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:37:58,927 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:37:58,937 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:37:58,947 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:37:58,952 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:37:59,040 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:37:59,040 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-10-17 10:37:59,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:37:59,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_413949c4-9143-456b-bcd7-5b61d0c7d599/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:37:59,045 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_413949c4-9143-456b-bcd7-5b61d0c7d599/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:37:59,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_413949c4-9143-456b-bcd7-5b61d0c7d599/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-10-17 10:37:59,048 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:37:59,062 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:37:59,062 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:37:59,062 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:37:59,062 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:37:59,065 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:37:59,065 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:37:59,074 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:37:59,111 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_413949c4-9143-456b-bcd7-5b61d0c7d599/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-10-17 10:37:59,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:37:59,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_413949c4-9143-456b-bcd7-5b61d0c7d599/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:37:59,125 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_413949c4-9143-456b-bcd7-5b61d0c7d599/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:37:59,131 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:37:59,140 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:37:59,140 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:37:59,140 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:37:59,140 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:37:59,140 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:37:59,141 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:37:59,141 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:37:59,143 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_413949c4-9143-456b-bcd7-5b61d0c7d599/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-10-17 10:37:59,165 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:37:59,190 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_413949c4-9143-456b-bcd7-5b61d0c7d599/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-10-17 10:37:59,198 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_413949c4-9143-456b-bcd7-5b61d0c7d599/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-10-17 10:37:59,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:37:59,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_413949c4-9143-456b-bcd7-5b61d0c7d599/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:37:59,201 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_413949c4-9143-456b-bcd7-5b61d0c7d599/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:37:59,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_413949c4-9143-456b-bcd7-5b61d0c7d599/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-10-17 10:37:59,207 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:37:59,216 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:37:59,216 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:37:59,216 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:37:59,216 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:37:59,216 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:37:59,217 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:37:59,217 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:37:59,237 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:37:59,277 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_413949c4-9143-456b-bcd7-5b61d0c7d599/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-10-17 10:37:59,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:37:59,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_413949c4-9143-456b-bcd7-5b61d0c7d599/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:37:59,281 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_413949c4-9143-456b-bcd7-5b61d0c7d599/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:37:59,289 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:37:59,300 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:37:59,301 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:37:59,301 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:37:59,301 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:37:59,312 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:37:59,312 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:37:59,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_413949c4-9143-456b-bcd7-5b61d0c7d599/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-10-17 10:37:59,337 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-10-17 10:37:59,349 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2022-10-17 10:37:59,349 INFO L444 ModelExtractionUtils]: 2 out of 10 variables were initially zero. Simplification set additionally 2 variables to zero. [2022-10-17 10:37:59,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:37:59,350 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_413949c4-9143-456b-bcd7-5b61d0c7d599/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:37:59,353 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_413949c4-9143-456b-bcd7-5b61d0c7d599/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:37:59,362 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-10-17 10:37:59,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_413949c4-9143-456b-bcd7-5b61d0c7d599/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-10-17 10:37:59,394 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2022-10-17 10:37:59,394 INFO L513 LassoAnalysis]: Proved termination. [2022-10-17 10:37:59,394 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~v2~0#1, ULTIMATE.start_main_~m~0#1) = 2*ULTIMATE.start_main_~v2~0#1 - 2*ULTIMATE.start_main_~m~0#1 + 1 Supporting invariants [1*ULTIMATE.start_main_~m~0#1 - 1 >= 0] [2022-10-17 10:37:59,425 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_413949c4-9143-456b-bcd7-5b61d0c7d599/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-10-17 10:37:59,435 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2022-10-17 10:37:59,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:37:59,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:37:59,470 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-17 10:37:59,471 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:37:59,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:37:59,502 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-17 10:37:59,503 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:37:59,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:37:59,543 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2022-10-17 10:37:59,543 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 12 transitions. cyclomatic complexity: 4 Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:37:59,571 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 12 transitions. cyclomatic complexity: 4. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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 10 states and 12 transitions. Complement of second has 4 states. [2022-10-17 10:37:59,571 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 [2022-10-17 10:37:59,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:37:59,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4 transitions. [2022-10-17 10:37:59,573 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 6 letters. Loop has 2 letters. [2022-10-17 10:37:59,574 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:37:59,574 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-10-17 10:37:59,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:37:59,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:37:59,605 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-17 10:37:59,606 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:37:59,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:37:59,638 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-17 10:37:59,639 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:37:59,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:37:59,668 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 2 loop predicates [2022-10-17 10:37:59,668 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 12 transitions. cyclomatic complexity: 4 Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:37:59,693 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 12 transitions. cyclomatic complexity: 4. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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 10 states and 12 transitions. Complement of second has 4 states. [2022-10-17 10:37:59,694 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 [2022-10-17 10:37:59,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:37:59,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4 transitions. [2022-10-17 10:37:59,696 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 6 letters. Loop has 2 letters. [2022-10-17 10:37:59,697 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:37:59,697 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-10-17 10:37:59,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:37:59,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:37:59,736 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-17 10:37:59,736 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:37:59,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:37:59,770 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-17 10:37:59,770 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:37:59,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:37:59,799 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2022-10-17 10:37:59,799 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 12 transitions. cyclomatic complexity: 4 Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:37:59,838 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 12 transitions. cyclomatic complexity: 4. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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 14 states and 17 transitions. Complement of second has 5 states. [2022-10-17 10:37:59,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2022-10-17 10:37:59,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:37:59,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2022-10-17 10:37:59,844 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 6 letters. Loop has 2 letters. [2022-10-17 10:37:59,845 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:37:59,845 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 8 letters. Loop has 2 letters. [2022-10-17 10:37:59,846 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:37:59,846 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 6 letters. Loop has 4 letters. [2022-10-17 10:37:59,847 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:37:59,847 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 17 transitions. [2022-10-17 10:37:59,851 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-10-17 10:37:59,851 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 0 states and 0 transitions. [2022-10-17 10:37:59,852 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-10-17 10:37:59,852 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-10-17 10:37:59,852 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-10-17 10:37:59,852 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:37:59,852 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-17 10:37:59,852 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-17 10:37:59,852 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-17 10:37:59,853 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-10-17 10:37:59,853 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-10-17 10:37:59,853 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-10-17 10:37:59,853 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-10-17 10:37:59,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 17.10 10:37:59 BoogieIcfgContainer [2022-10-17 10:37:59,861 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-10-17 10:37:59,861 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 10:37:59,861 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 10:37:59,862 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 10:37:59,862 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:37:56" (3/4) ... [2022-10-17 10:37:59,867 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-10-17 10:37:59,867 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 10:37:59,869 INFO L158 Benchmark]: Toolchain (without parser) took 4204.42ms. Allocated memory is still 104.9MB. Free memory was 65.2MB in the beginning and 48.5MB in the end (delta: 16.7MB). Peak memory consumption was 16.1MB. Max. memory is 16.1GB. [2022-10-17 10:37:59,869 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 104.9MB. Free memory is still 81.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 10:37:59,875 INFO L158 Benchmark]: CACSL2BoogieTranslator took 270.91ms. Allocated memory is still 104.9MB. Free memory was 64.9MB in the beginning and 82.7MB in the end (delta: -17.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-10-17 10:37:59,875 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.03ms. Allocated memory is still 104.9MB. Free memory was 82.7MB in the beginning and 81.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 10:37:59,876 INFO L158 Benchmark]: Boogie Preprocessor took 21.46ms. Allocated memory is still 104.9MB. Free memory was 81.4MB in the beginning and 80.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 10:37:59,877 INFO L158 Benchmark]: RCFGBuilder took 292.88ms. Allocated memory is still 104.9MB. Free memory was 80.3MB in the beginning and 71.9MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-10-17 10:37:59,880 INFO L158 Benchmark]: BuchiAutomizer took 3570.73ms. Allocated memory is still 104.9MB. Free memory was 71.9MB in the beginning and 48.5MB in the end (delta: 23.4MB). Peak memory consumption was 24.8MB. Max. memory is 16.1GB. [2022-10-17 10:37:59,880 INFO L158 Benchmark]: Witness Printer took 5.91ms. Allocated memory is still 104.9MB. Free memory is still 48.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 10:37:59,882 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 104.9MB. Free memory is still 81.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 270.91ms. Allocated memory is still 104.9MB. Free memory was 64.9MB in the beginning and 82.7MB in the end (delta: -17.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.03ms. Allocated memory is still 104.9MB. Free memory was 82.7MB in the beginning and 81.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 21.46ms. Allocated memory is still 104.9MB. Free memory was 81.4MB in the beginning and 80.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 292.88ms. Allocated memory is still 104.9MB. Free memory was 80.3MB in the beginning and 71.9MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 3570.73ms. Allocated memory is still 104.9MB. Free memory was 71.9MB in the beginning and 48.5MB in the end (delta: 23.4MB). Peak memory consumption was 24.8MB. Max. memory is 16.1GB. * Witness Printer took 5.91ms. Allocated memory is still 104.9MB. Free memory is still 48.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (1 trivial, 1 deterministic, 1 nondeterministic). One deterministic module has affine ranking function v1 and consists of 5 locations. One nondeterministic module has affine ranking function 2 * v2 + -2 * m + 1 and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.5s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 2.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.6s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [1, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 25 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 24 mSDsluCounter, 42 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 26 IncrementalHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 29 mSDtfsCounter, 26 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital22 mio100 ax156 hnf100 lsp36 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq156 hnf92 smp100 dnf100 smp100 tf106 neg97 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 65ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.5s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-10-17 10:37:59,916 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_413949c4-9143-456b-bcd7-5b61d0c7d599/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-10-17 10:38:00,138 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_413949c4-9143-456b-bcd7-5b61d0c7d599/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE