./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-alloca/Ben-Amram-2010LMCS-Ex2.3-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/Ben-Amram-2010LMCS-Ex2.3-alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 07b282ace126e2e6034cb3e18e52d69833dcd5d95d5a3123bfc5247b81ecd1aa --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-02 20:06:08,169 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:06:08,172 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:06:08,207 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:06:08,208 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:06:08,213 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:06:08,216 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:06:08,221 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:06:08,223 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:06:08,224 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:06:08,226 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:06:08,230 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:06:08,230 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:06:08,238 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:06:08,239 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:06:08,240 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:06:08,243 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:06:08,246 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:06:08,248 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:06:08,252 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:06:08,257 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:06:08,259 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:06:08,260 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:06:08,261 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:06:08,264 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:06:08,264 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:06:08,269 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:06:08,271 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:06:08,271 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:06:08,272 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:06:08,273 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:06:08,274 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:06:08,276 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:06:08,277 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:06:08,279 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:06:08,279 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:06:08,280 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:06:08,280 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:06:08,280 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:06:08,281 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:06:08,282 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:06:08,282 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-11-02 20:06:08,332 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:06:08,332 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:06:08,333 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:06:08,333 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:06:08,334 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:06:08,334 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:06:08,334 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:06:08,334 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-02 20:06:08,335 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-02 20:06:08,335 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-02 20:06:08,335 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-02 20:06:08,335 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-02 20:06:08,335 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-02 20:06:08,336 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:06:08,336 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 20:06:08,336 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:06:08,336 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:06:08,336 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-02 20:06:08,336 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-02 20:06:08,337 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-02 20:06:08,337 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:06:08,337 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-02 20:06:08,337 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:06:08,337 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-02 20:06:08,338 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:06:08,338 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:06:08,338 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:06:08,338 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:06:08,339 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-02 20:06:08,339 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_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 07b282ace126e2e6034cb3e18e52d69833dcd5d95d5a3123bfc5247b81ecd1aa [2022-11-02 20:06:08,597 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:06:08,621 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:06:08,624 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:06:08,625 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:06:08,629 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:06:08,631 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/termination-memory-alloca/Ben-Amram-2010LMCS-Ex2.3-alloca.i [2022-11-02 20:06:08,714 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/data/951fb2308/90197b7319fa4bc192088b9e78d0407c/FLAG381ee3de1 [2022-11-02 20:06:09,258 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:06:09,259 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/sv-benchmarks/c/termination-memory-alloca/Ben-Amram-2010LMCS-Ex2.3-alloca.i [2022-11-02 20:06:09,271 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/data/951fb2308/90197b7319fa4bc192088b9e78d0407c/FLAG381ee3de1 [2022-11-02 20:06:09,575 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/data/951fb2308/90197b7319fa4bc192088b9e78d0407c [2022-11-02 20:06:09,578 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:06:09,580 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:06:09,589 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:06:09,589 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:06:09,593 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:06:09,594 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:06:09" (1/1) ... [2022-11-02 20:06:09,595 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32287122 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:06:09, skipping insertion in model container [2022-11-02 20:06:09,596 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:06:09" (1/1) ... [2022-11-02 20:06:09,604 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:06:09,635 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:06:10,002 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:06:10,015 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:06:10,057 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:06:10,081 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:06:10,081 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:06:10 WrapperNode [2022-11-02 20:06:10,081 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:06:10,082 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:06:10,083 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:06:10,083 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:06:10,091 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:06:10" (1/1) ... [2022-11-02 20:06:10,103 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:06:10" (1/1) ... [2022-11-02 20:06:10,124 INFO L138 Inliner]: procedures = 110, calls = 29, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 77 [2022-11-02 20:06:10,125 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:06:10,125 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:06:10,125 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:06:10,126 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:06:10,135 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:06:10" (1/1) ... [2022-11-02 20:06:10,136 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:06:10" (1/1) ... [2022-11-02 20:06:10,139 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:06:10" (1/1) ... [2022-11-02 20:06:10,139 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:06:10" (1/1) ... [2022-11-02 20:06:10,143 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:06:10" (1/1) ... [2022-11-02 20:06:10,147 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:06:10" (1/1) ... [2022-11-02 20:06:10,149 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:06:10" (1/1) ... [2022-11-02 20:06:10,150 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:06:10" (1/1) ... [2022-11-02 20:06:10,152 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:06:10,153 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:06:10,153 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:06:10,153 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:06:10,154 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:06:10" (1/1) ... [2022-11-02 20:06:10,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:06:10,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:06:10,211 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:06:10,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-02 20:06:10,259 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 20:06:10,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 20:06:10,260 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 20:06:10,260 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:06:10,260 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:06:10,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:06:10,367 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:06:10,370 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:06:10,532 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:06:10,538 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:06:10,539 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-02 20:06:10,541 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:06:10 BoogieIcfgContainer [2022-11-02 20:06:10,541 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:06:10,542 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-02 20:06:10,542 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-02 20:06:10,547 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-02 20:06:10,548 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-02 20:06:10,548 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 02.11 08:06:09" (1/3) ... [2022-11-02 20:06:10,549 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6353a2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.11 08:06:10, skipping insertion in model container [2022-11-02 20:06:10,549 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-02 20:06:10,550 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:06:10" (2/3) ... [2022-11-02 20:06:10,550 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6353a2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.11 08:06:10, skipping insertion in model container [2022-11-02 20:06:10,550 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-02 20:06:10,550 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:06:10" (3/3) ... [2022-11-02 20:06:10,552 INFO L332 chiAutomizerObserver]: Analyzing ICFG Ben-Amram-2010LMCS-Ex2.3-alloca.i [2022-11-02 20:06:10,607 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-02 20:06:10,613 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-02 20:06:10,614 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-02 20:06:10,614 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-02 20:06:10,614 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-02 20:06:10,614 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-02 20:06:10,618 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-02 20:06:10,619 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-02 20:06:10,623 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:06:10,663 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2022-11-02 20:06:10,663 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:06:10,663 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:06:10,674 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-02 20:06:10,675 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2022-11-02 20:06:10,675 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-02 20:06:10,675 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:06:10,676 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2022-11-02 20:06:10,678 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:06:10,678 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:06:10,679 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-02 20:06:10,680 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2022-11-02 20:06:10,691 INFO L748 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 10#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~malloc4#1.base, main_#t~malloc4#1.offset, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~mem13#1, main_#t~mem14#1, main_#t~mem15#1, main_#t~nondet16#1, main_#t~mem17#1, main_#t~mem18#1, main_#t~nondet19#1, main_#t~mem20#1, main_#t~mem8#1, main_#t~mem9#1, main_#t~short10#1, main_#t~mem11#1, main_#t~short12#1, main_~x~0#1.base, main_~x~0#1.offset, main_~y~0#1.base, main_~y~0#1.offset, main_~z~0#1.base, main_~z~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~x~0#1.base, main_~x~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~y~0#1.base, main_~y~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;call main_#t~malloc4#1.base, main_#t~malloc4#1.offset := #Ultimate.allocOnStack(4);main_~z~0#1.base, main_~z~0#1.offset := main_#t~malloc4#1.base, main_#t~malloc4#1.offset;call write~int(main_#t~nondet5#1, main_~x~0#1.base, main_~x~0#1.offset, 4);havoc main_#t~nondet5#1;call write~int(main_#t~nondet6#1, main_~y~0#1.base, main_~y~0#1.offset, 4);havoc main_#t~nondet6#1;call write~int(main_#t~nondet7#1, main_~z~0#1.base, main_~z~0#1.offset, 4);havoc main_#t~nondet7#1; 8#L555-2true [2022-11-02 20:06:10,691 INFO L750 eck$LassoCheckResult]: Loop: 8#L555-2true call main_#t~mem8#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short10#1 := main_#t~mem8#1 > 0; 9#L554-1true assume main_#t~short10#1;call main_#t~mem9#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);main_#t~short10#1 := main_#t~mem9#1 > 0; 7#L554-3true main_#t~short12#1 := main_#t~short10#1; 11#L554-4true assume main_#t~short12#1;call main_#t~mem11#1 := read~int(main_~z~0#1.base, main_~z~0#1.offset, 4);main_#t~short12#1 := main_#t~mem11#1 > 0; 12#L554-6true assume !!main_#t~short12#1;havoc main_#t~mem8#1;havoc main_#t~mem9#1;havoc main_#t~short10#1;havoc main_#t~mem11#1;havoc main_#t~short12#1;call main_#t~mem13#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);call main_#t~mem14#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 4#L555true assume main_#t~mem13#1 > main_#t~mem14#1;havoc main_#t~mem13#1;havoc main_#t~mem14#1;call main_#t~mem15#1 := read~int(main_~z~0#1.base, main_~z~0#1.offset, 4);call write~int(main_#t~mem15#1, main_~y~0#1.base, main_~y~0#1.offset, 4);havoc main_#t~mem15#1;call write~int(main_#t~nondet16#1, main_~x~0#1.base, main_~x~0#1.offset, 4);havoc main_#t~nondet16#1;call main_#t~mem17#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);call write~int(main_#t~mem17#1 - 1, main_~z~0#1.base, main_~z~0#1.offset, 4);havoc main_#t~mem17#1; 8#L555-2true [2022-11-02 20:06:10,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:06:10,703 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-11-02 20:06:10,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:06:10,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490203530] [2022-11-02 20:06:10,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:06:10,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:06:10,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:06:10,938 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:06:10,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:06:11,014 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:06:11,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:06:11,021 INFO L85 PathProgramCache]: Analyzing trace with hash 1097577162, now seen corresponding path program 1 times [2022-11-02 20:06:11,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:06:11,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318037887] [2022-11-02 20:06:11,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:06:11,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:06:11,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:06:11,087 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:06:11,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:06:11,109 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:06:11,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:06:11,111 INFO L85 PathProgramCache]: Analyzing trace with hash 177626380, now seen corresponding path program 1 times [2022-11-02 20:06:11,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:06:11,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271261100] [2022-11-02 20:06:11,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:06:11,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:06:11,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:06:11,173 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:06:11,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:06:11,213 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:06:12,580 INFO L210 LassoAnalysis]: Preferences: [2022-11-02 20:06:12,580 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-02 20:06:12,580 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-02 20:06:12,580 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-02 20:06:12,581 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-02 20:06:12,581 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:06:12,581 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-02 20:06:12,582 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-02 20:06:12,582 INFO L133 ssoRankerPreferences]: Filename of dumped script: Ben-Amram-2010LMCS-Ex2.3-alloca.i_Iteration1_Lasso [2022-11-02 20:06:12,583 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-02 20:06:12,583 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-02 20:06:12,607 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:06:12,619 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:06:12,621 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:06:12,624 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:06:12,629 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:06:12,632 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:06:12,635 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:06:12,639 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:06:12,642 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:06:12,645 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:06:12,649 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:06:12,652 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:06:12,655 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:06:12,664 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:06:12,668 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:06:12,671 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:06:12,675 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:06:13,353 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:06:13,357 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:06:13,360 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:06:13,363 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:06:13,375 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:06:13,378 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:06:14,039 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-02 20:06:14,044 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-02 20:06:14,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:06:14,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:06:14,049 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:06:14,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-02 20:06:14,063 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 20:06:14,074 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:06:14,075 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 20:06:14,075 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:06:14,076 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:06:14,076 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:06:14,078 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 20:06:14,078 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 20:06:14,086 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:06:14,112 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-02 20:06:14,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:06:14,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:06:14,114 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:06:14,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-02 20:06:14,123 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 20:06:14,133 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:06:14,133 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 20:06:14,133 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:06:14,134 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:06:14,134 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:06:14,137 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 20:06:14,137 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 20:06:14,166 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:06:14,212 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-02 20:06:14,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:06:14,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:06:14,214 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:06:14,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-02 20:06:14,218 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 20:06:14,233 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:06:14,233 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 20:06:14,233 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:06:14,233 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:06:14,233 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:06:14,234 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 20:06:14,234 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 20:06:14,256 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:06:14,295 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-02 20:06:14,295 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:06:14,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:06:14,297 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:06:14,306 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 20:06:14,318 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:06:14,319 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:06:14,319 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:06:14,319 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:06:14,322 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-02 20:06:14,322 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-02 20:06:14,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-02 20:06:14,338 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:06:14,377 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-02 20:06:14,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:06:14,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:06:14,378 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:06:14,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-02 20:06:14,381 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 20:06:14,393 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:06:14,394 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 20:06:14,394 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:06:14,394 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:06:14,394 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:06:14,395 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 20:06:14,395 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 20:06:14,408 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:06:14,447 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-11-02 20:06:14,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:06:14,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:06:14,473 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:06:14,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-02 20:06:14,497 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 20:06:14,508 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:06:14,508 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 20:06:14,508 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:06:14,508 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:06:14,508 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:06:14,509 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 20:06:14,509 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 20:06:14,532 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:06:14,572 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-11-02 20:06:14,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:06:14,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:06:14,574 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:06:14,582 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 20:06:14,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-02 20:06:14,594 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:06:14,595 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:06:14,595 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:06:14,595 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:06:14,597 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-02 20:06:14,597 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-02 20:06:14,608 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:06:14,658 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-11-02 20:06:14,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:06:14,658 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:06:14,659 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:06:14,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-02 20:06:14,662 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 20:06:14,673 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:06:14,673 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 20:06:14,673 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:06:14,673 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:06:14,673 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:06:14,674 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 20:06:14,674 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 20:06:14,679 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:06:14,749 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-11-02 20:06:14,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:06:14,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:06:14,750 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:06:14,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-11-02 20:06:14,752 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 20:06:14,763 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:06:14,763 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 20:06:14,763 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:06:14,763 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:06:14,763 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:06:14,764 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 20:06:14,764 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 20:06:14,765 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:06:14,825 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-11-02 20:06:14,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:06:14,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:06:14,826 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:06:14,828 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-11-02 20:06:14,829 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 20:06:14,841 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:06:14,841 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:06:14,841 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:06:14,841 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:06:14,847 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-02 20:06:14,847 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-02 20:06:14,854 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:06:14,883 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-11-02 20:06:14,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:06:14,884 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:06:14,885 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:06:14,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-11-02 20:06:14,888 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 20:06:14,898 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:06:14,898 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 20:06:14,898 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:06:14,898 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:06:14,899 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:06:14,899 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 20:06:14,900 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 20:06:14,908 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:06:14,937 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-11-02 20:06:14,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:06:14,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:06:14,938 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:06:14,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-11-02 20:06:14,940 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 20:06:14,950 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:06:14,950 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 20:06:14,950 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:06:14,950 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:06:14,950 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:06:14,951 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 20:06:14,951 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 20:06:14,952 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:06:14,976 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-11-02 20:06:14,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:06:14,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:06:14,978 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:06:14,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-11-02 20:06:14,980 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 20:06:14,990 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:06:14,990 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 20:06:14,990 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:06:14,991 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:06:14,991 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:06:14,991 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 20:06:14,991 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 20:06:14,999 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:06:15,022 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-11-02 20:06:15,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:06:15,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:06:15,024 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:06:15,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-11-02 20:06:15,027 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 20:06:15,037 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:06:15,037 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 20:06:15,038 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:06:15,038 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:06:15,038 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:06:15,038 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 20:06:15,038 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 20:06:15,040 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:06:15,064 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-11-02 20:06:15,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:06:15,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:06:15,065 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:06:15,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-11-02 20:06:15,068 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 20:06:15,078 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:06:15,078 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:06:15,078 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:06:15,078 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:06:15,080 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-02 20:06:15,080 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-02 20:06:15,087 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:06:15,109 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-11-02 20:06:15,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:06:15,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:06:15,112 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:06:15,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-11-02 20:06:15,113 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 20:06:15,123 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:06:15,123 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 20:06:15,124 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:06:15,124 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:06:15,124 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:06:15,124 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 20:06:15,124 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 20:06:15,126 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:06:15,148 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-11-02 20:06:15,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:06:15,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:06:15,150 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:06:15,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-11-02 20:06:15,152 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 20:06:15,162 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:06:15,162 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:06:15,162 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:06:15,162 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:06:15,176 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-02 20:06:15,176 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-02 20:06:15,187 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:06:15,227 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-11-02 20:06:15,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:06:15,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:06:15,229 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:06:15,233 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-11-02 20:06:15,234 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 20:06:15,246 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:06:15,246 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:06:15,246 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:06:15,246 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:06:15,250 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-02 20:06:15,250 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-02 20:06:15,266 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:06:15,292 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2022-11-02 20:06:15,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:06:15,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:06:15,293 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:06:15,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-11-02 20:06:15,296 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 20:06:15,307 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:06:15,307 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:06:15,307 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:06:15,307 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:06:15,311 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-02 20:06:15,311 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-02 20:06:15,323 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:06:15,369 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2022-11-02 20:06:15,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:06:15,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:06:15,370 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:06:15,373 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 20:06:15,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-11-02 20:06:15,385 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:06:15,385 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:06:15,385 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:06:15,385 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:06:15,392 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-02 20:06:15,392 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-02 20:06:15,416 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-02 20:06:15,440 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2022-11-02 20:06:15,440 INFO L444 ModelExtractionUtils]: 9 out of 16 variables were initially zero. Simplification set additionally 3 variables to zero. [2022-11-02 20:06:15,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:06:15,442 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:06:15,461 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:06:15,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-11-02 20:06:15,491 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-02 20:06:15,522 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2022-11-02 20:06:15,523 INFO L513 LassoAnalysis]: Proved termination. [2022-11-02 20:06:15,523 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~x~0#1.base) ULTIMATE.start_main_~x~0#1.offset)_1, v_rep(select (select #memory_int ULTIMATE.start_main_~z~0#1.base) ULTIMATE.start_main_~z~0#1.offset)_1, v_rep(select (select #memory_int ULTIMATE.start_main_~y~0#1.base) ULTIMATE.start_main_~y~0#1.offset)_1) = -1*v_rep(select (select #memory_int ULTIMATE.start_main_~x~0#1.base) ULTIMATE.start_main_~x~0#1.offset)_1 + 1*v_rep(select (select #memory_int ULTIMATE.start_main_~z~0#1.base) ULTIMATE.start_main_~z~0#1.offset)_1 + 1*v_rep(select (select #memory_int ULTIMATE.start_main_~y~0#1.base) ULTIMATE.start_main_~y~0#1.offset)_1 Supporting invariants [] [2022-11-02 20:06:15,563 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2022-11-02 20:06:15,685 INFO L156 tatePredicateManager]: 22 out of 24 supporting invariants were superfluous and have been removed [2022-11-02 20:06:15,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:06:15,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:06:15,774 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-02 20:06:15,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:06:15,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:06:15,811 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 30 conjunts are in the unsatisfiable core [2022-11-02 20:06:15,815 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:06:15,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:06:16,032 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-11-02 20:06:16,034 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 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) [2022-11-02 20:06:16,187 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 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 34 states and 48 transitions. Complement of second has 10 states. [2022-11-02 20:06:16,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2022-11-02 20:06:16,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 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) [2022-11-02 20:06:16,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 17 transitions. [2022-11-02 20:06:16,196 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 17 transitions. Stem has 2 letters. Loop has 6 letters. [2022-11-02 20:06:16,196 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:06:16,197 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 17 transitions. Stem has 8 letters. Loop has 6 letters. [2022-11-02 20:06:16,197 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:06:16,197 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 17 transitions. Stem has 2 letters. Loop has 12 letters. [2022-11-02 20:06:16,197 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:06:16,198 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 48 transitions. [2022-11-02 20:06:16,200 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2022-11-02 20:06:16,204 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 22 states and 31 transitions. [2022-11-02 20:06:16,205 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2022-11-02 20:06:16,206 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2022-11-02 20:06:16,206 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 31 transitions. [2022-11-02 20:06:16,207 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-02 20:06:16,207 INFO L218 hiAutomatonCegarLoop]: Abstraction has 22 states and 31 transitions. [2022-11-02 20:06:16,228 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2022-11-02 20:06:16,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 31 transitions. [2022-11-02 20:06:16,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 20. [2022-11-02 20:06:16,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 20 states have (on average 1.4) internal successors, (28), 19 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:06:16,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 28 transitions. [2022-11-02 20:06:16,243 INFO L240 hiAutomatonCegarLoop]: Abstraction has 20 states and 28 transitions. [2022-11-02 20:06:16,244 INFO L428 stractBuchiCegarLoop]: Abstraction has 20 states and 28 transitions. [2022-11-02 20:06:16,244 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-02 20:06:16,244 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 28 transitions. [2022-11-02 20:06:16,245 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2022-11-02 20:06:16,245 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:06:16,245 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:06:16,246 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2022-11-02 20:06:16,246 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2022-11-02 20:06:16,246 INFO L748 eck$LassoCheckResult]: Stem: 206#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 207#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~malloc4#1.base, main_#t~malloc4#1.offset, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~mem13#1, main_#t~mem14#1, main_#t~mem15#1, main_#t~nondet16#1, main_#t~mem17#1, main_#t~mem18#1, main_#t~nondet19#1, main_#t~mem20#1, main_#t~mem8#1, main_#t~mem9#1, main_#t~short10#1, main_#t~mem11#1, main_#t~short12#1, main_~x~0#1.base, main_~x~0#1.offset, main_~y~0#1.base, main_~y~0#1.offset, main_~z~0#1.base, main_~z~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~x~0#1.base, main_~x~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~y~0#1.base, main_~y~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;call main_#t~malloc4#1.base, main_#t~malloc4#1.offset := #Ultimate.allocOnStack(4);main_~z~0#1.base, main_~z~0#1.offset := main_#t~malloc4#1.base, main_#t~malloc4#1.offset;call write~int(main_#t~nondet5#1, main_~x~0#1.base, main_~x~0#1.offset, 4);havoc main_#t~nondet5#1;call write~int(main_#t~nondet6#1, main_~y~0#1.base, main_~y~0#1.offset, 4);havoc main_#t~nondet6#1;call write~int(main_#t~nondet7#1, main_~z~0#1.base, main_~z~0#1.offset, 4);havoc main_#t~nondet7#1; 218#L555-2 call main_#t~mem8#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short10#1 := main_#t~mem8#1 > 0; 214#L554-1 assume !main_#t~short10#1; 221#L554-3 main_#t~short12#1 := main_#t~short10#1; 220#L554-4 assume !main_#t~short12#1; 215#L554-6 [2022-11-02 20:06:16,246 INFO L750 eck$LassoCheckResult]: Loop: 215#L554-6 assume !!main_#t~short12#1;havoc main_#t~mem8#1;havoc main_#t~mem9#1;havoc main_#t~short10#1;havoc main_#t~mem11#1;havoc main_#t~short12#1;call main_#t~mem13#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);call main_#t~mem14#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 217#L555 assume main_#t~mem13#1 > main_#t~mem14#1;havoc main_#t~mem13#1;havoc main_#t~mem14#1;call main_#t~mem15#1 := read~int(main_~z~0#1.base, main_~z~0#1.offset, 4);call write~int(main_#t~mem15#1, main_~y~0#1.base, main_~y~0#1.offset, 4);havoc main_#t~mem15#1;call write~int(main_#t~nondet16#1, main_~x~0#1.base, main_~x~0#1.offset, 4);havoc main_#t~nondet16#1;call main_#t~mem17#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);call write~int(main_#t~mem17#1 - 1, main_~z~0#1.base, main_~z~0#1.offset, 4);havoc main_#t~mem17#1; 203#L555-2 call main_#t~mem8#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short10#1 := main_#t~mem8#1 > 0; 212#L554-1 assume main_#t~short10#1;call main_#t~mem9#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);main_#t~short10#1 := main_#t~mem9#1 > 0; 208#L554-3 main_#t~short12#1 := main_#t~short10#1; 209#L554-4 assume main_#t~short12#1;call main_#t~mem11#1 := read~int(main_~z~0#1.base, main_~z~0#1.offset, 4);main_#t~short12#1 := main_#t~mem11#1 > 0; 215#L554-6 [2022-11-02 20:06:16,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:06:16,247 INFO L85 PathProgramCache]: Analyzing trace with hash 889571245, now seen corresponding path program 1 times [2022-11-02 20:06:16,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:06:16,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851240724] [2022-11-02 20:06:16,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:06:16,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:06:16,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:06:16,284 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:06:16,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:06:16,309 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:06:16,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:06:16,314 INFO L85 PathProgramCache]: Analyzing trace with hash 1629309642, now seen corresponding path program 2 times [2022-11-02 20:06:16,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:06:16,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54095272] [2022-11-02 20:06:16,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:06:16,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:06:16,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:06:16,348 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:06:16,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:06:16,368 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:06:16,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:06:16,373 INFO L85 PathProgramCache]: Analyzing trace with hash -2128502410, now seen corresponding path program 1 times [2022-11-02 20:06:16,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:06:16,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168536199] [2022-11-02 20:06:16,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:06:16,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:06:16,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:06:16,471 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:06:16,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:06:16,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168536199] [2022-11-02 20:06:16,472 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168536199] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:06:16,472 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:06:16,473 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 20:06:16,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741725731] [2022-11-02 20:06:16,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:06:16,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:06:16,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:06:16,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:06:16,980 INFO L87 Difference]: Start difference. First operand 20 states and 28 transitions. cyclomatic complexity: 10 Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:06:16,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:06:16,994 INFO L93 Difference]: Finished difference Result 21 states and 28 transitions. [2022-11-02 20:06:16,994 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 28 transitions. [2022-11-02 20:06:16,995 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2022-11-02 20:06:16,996 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 20 states and 26 transitions. [2022-11-02 20:06:16,996 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2022-11-02 20:06:16,996 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2022-11-02 20:06:16,997 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 26 transitions. [2022-11-02 20:06:16,997 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-02 20:06:16,997 INFO L218 hiAutomatonCegarLoop]: Abstraction has 20 states and 26 transitions. [2022-11-02 20:06:16,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 26 transitions. [2022-11-02 20:06:16,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2022-11-02 20:06:16,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 20 states have (on average 1.3) internal successors, (26), 19 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:06:16,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 26 transitions. [2022-11-02 20:06:17,000 INFO L240 hiAutomatonCegarLoop]: Abstraction has 20 states and 26 transitions. [2022-11-02 20:06:17,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:06:17,001 INFO L428 stractBuchiCegarLoop]: Abstraction has 20 states and 26 transitions. [2022-11-02 20:06:17,001 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-02 20:06:17,001 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 26 transitions. [2022-11-02 20:06:17,002 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2022-11-02 20:06:17,002 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:06:17,002 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:06:17,003 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:06:17,003 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2022-11-02 20:06:17,003 INFO L748 eck$LassoCheckResult]: Stem: 255#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 256#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~malloc4#1.base, main_#t~malloc4#1.offset, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~mem13#1, main_#t~mem14#1, main_#t~mem15#1, main_#t~nondet16#1, main_#t~mem17#1, main_#t~mem18#1, main_#t~nondet19#1, main_#t~mem20#1, main_#t~mem8#1, main_#t~mem9#1, main_#t~short10#1, main_#t~mem11#1, main_#t~short12#1, main_~x~0#1.base, main_~x~0#1.offset, main_~y~0#1.base, main_~y~0#1.offset, main_~z~0#1.base, main_~z~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~x~0#1.base, main_~x~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~y~0#1.base, main_~y~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;call main_#t~malloc4#1.base, main_#t~malloc4#1.offset := #Ultimate.allocOnStack(4);main_~z~0#1.base, main_~z~0#1.offset := main_#t~malloc4#1.base, main_#t~malloc4#1.offset;call write~int(main_#t~nondet5#1, main_~x~0#1.base, main_~x~0#1.offset, 4);havoc main_#t~nondet5#1;call write~int(main_#t~nondet6#1, main_~y~0#1.base, main_~y~0#1.offset, 4);havoc main_#t~nondet6#1;call write~int(main_#t~nondet7#1, main_~z~0#1.base, main_~z~0#1.offset, 4);havoc main_#t~nondet7#1; 264#L555-2 call main_#t~mem8#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short10#1 := main_#t~mem8#1 > 0; 263#L554-1 assume !main_#t~short10#1; 270#L554-3 main_#t~short12#1 := main_#t~short10#1; 269#L554-4 assume main_#t~short12#1;call main_#t~mem11#1 := read~int(main_~z~0#1.base, main_~z~0#1.offset, 4);main_#t~short12#1 := main_#t~mem11#1 > 0; 268#L554-6 assume !!main_#t~short12#1;havoc main_#t~mem8#1;havoc main_#t~mem9#1;havoc main_#t~short10#1;havoc main_#t~mem11#1;havoc main_#t~short12#1;call main_#t~mem13#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);call main_#t~mem14#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 251#L555 assume !(main_#t~mem13#1 > main_#t~mem14#1);havoc main_#t~mem13#1;havoc main_#t~mem14#1;call main_#t~mem18#1 := read~int(main_~z~0#1.base, main_~z~0#1.offset, 4);call write~int(main_#t~mem18#1 - 1, main_~z~0#1.base, main_~z~0#1.offset, 4);havoc main_#t~mem18#1;call write~int(main_#t~nondet19#1, main_~x~0#1.base, main_~x~0#1.offset, 4);havoc main_#t~nondet19#1;call main_#t~mem20#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);call write~int(main_#t~mem20#1 - 1, main_~y~0#1.base, main_~y~0#1.offset, 4);havoc main_#t~mem20#1; 252#L555-2 [2022-11-02 20:06:17,003 INFO L750 eck$LassoCheckResult]: Loop: 252#L555-2 call main_#t~mem8#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short10#1 := main_#t~mem8#1 > 0; 261#L554-1 assume main_#t~short10#1;call main_#t~mem9#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);main_#t~short10#1 := main_#t~mem9#1 > 0; 257#L554-3 main_#t~short12#1 := main_#t~short10#1; 258#L554-4 assume main_#t~short12#1;call main_#t~mem11#1 := read~int(main_~z~0#1.base, main_~z~0#1.offset, 4);main_#t~short12#1 := main_#t~mem11#1 > 0; 265#L554-6 assume !!main_#t~short12#1;havoc main_#t~mem8#1;havoc main_#t~mem9#1;havoc main_#t~short10#1;havoc main_#t~mem11#1;havoc main_#t~short12#1;call main_#t~mem13#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);call main_#t~mem14#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 267#L555 assume main_#t~mem13#1 > main_#t~mem14#1;havoc main_#t~mem13#1;havoc main_#t~mem14#1;call main_#t~mem15#1 := read~int(main_~z~0#1.base, main_~z~0#1.offset, 4);call write~int(main_#t~mem15#1, main_~y~0#1.base, main_~y~0#1.offset, 4);havoc main_#t~mem15#1;call write~int(main_#t~nondet16#1, main_~x~0#1.base, main_~x~0#1.offset, 4);havoc main_#t~nondet16#1;call main_#t~mem17#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);call write~int(main_#t~mem17#1 - 1, main_~z~0#1.base, main_~z~0#1.offset, 4);havoc main_#t~mem17#1; 252#L555-2 [2022-11-02 20:06:17,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:06:17,004 INFO L85 PathProgramCache]: Analyzing trace with hash 179473424, now seen corresponding path program 1 times [2022-11-02 20:06:17,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:06:17,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101541913] [2022-11-02 20:06:17,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:06:17,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:06:17,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:06:17,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:06:17,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:06:17,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101541913] [2022-11-02 20:06:17,066 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101541913] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:06:17,067 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:06:17,067 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:06:17,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518352836] [2022-11-02 20:06:17,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:06:17,067 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-02 20:06:17,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:06:17,068 INFO L85 PathProgramCache]: Analyzing trace with hash 1097577162, now seen corresponding path program 3 times [2022-11-02 20:06:17,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:06:17,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148749376] [2022-11-02 20:06:17,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:06:17,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:06:17,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:06:17,081 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:06:17,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:06:17,092 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:06:17,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:06:17,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:06:17,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:06:17,457 INFO L87 Difference]: Start difference. First operand 20 states and 26 transitions. cyclomatic complexity: 8 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) [2022-11-02 20:06:17,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:06:17,480 INFO L93 Difference]: Finished difference Result 26 states and 29 transitions. [2022-11-02 20:06:17,481 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 29 transitions. [2022-11-02 20:06:17,482 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2022-11-02 20:06:17,482 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 20 states and 23 transitions. [2022-11-02 20:06:17,482 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2022-11-02 20:06:17,482 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2022-11-02 20:06:17,482 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 23 transitions. [2022-11-02 20:06:17,483 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-02 20:06:17,483 INFO L218 hiAutomatonCegarLoop]: Abstraction has 20 states and 23 transitions. [2022-11-02 20:06:17,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 23 transitions. [2022-11-02 20:06:17,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2022-11-02 20:06:17,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 20 states have (on average 1.15) internal successors, (23), 19 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:06:17,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2022-11-02 20:06:17,485 INFO L240 hiAutomatonCegarLoop]: Abstraction has 20 states and 23 transitions. [2022-11-02 20:06:17,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 20:06:17,486 INFO L428 stractBuchiCegarLoop]: Abstraction has 20 states and 23 transitions. [2022-11-02 20:06:17,486 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-11-02 20:06:17,486 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 23 transitions. [2022-11-02 20:06:17,487 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2022-11-02 20:06:17,487 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:06:17,487 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:06:17,488 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:06:17,488 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2022-11-02 20:06:17,488 INFO L748 eck$LassoCheckResult]: Stem: 310#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 311#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~malloc4#1.base, main_#t~malloc4#1.offset, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~mem13#1, main_#t~mem14#1, main_#t~mem15#1, main_#t~nondet16#1, main_#t~mem17#1, main_#t~mem18#1, main_#t~nondet19#1, main_#t~mem20#1, main_#t~mem8#1, main_#t~mem9#1, main_#t~short10#1, main_#t~mem11#1, main_#t~short12#1, main_~x~0#1.base, main_~x~0#1.offset, main_~y~0#1.base, main_~y~0#1.offset, main_~z~0#1.base, main_~z~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~x~0#1.base, main_~x~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~y~0#1.base, main_~y~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;call main_#t~malloc4#1.base, main_#t~malloc4#1.offset := #Ultimate.allocOnStack(4);main_~z~0#1.base, main_~z~0#1.offset := main_#t~malloc4#1.base, main_#t~malloc4#1.offset;call write~int(main_#t~nondet5#1, main_~x~0#1.base, main_~x~0#1.offset, 4);havoc main_#t~nondet5#1;call write~int(main_#t~nondet6#1, main_~y~0#1.base, main_~y~0#1.offset, 4);havoc main_#t~nondet6#1;call write~int(main_#t~nondet7#1, main_~z~0#1.base, main_~z~0#1.offset, 4);havoc main_#t~nondet7#1; 321#L555-2 call main_#t~mem8#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short10#1 := main_#t~mem8#1 > 0; 318#L554-1 assume main_#t~short10#1;call main_#t~mem9#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);main_#t~short10#1 := main_#t~mem9#1 > 0; 312#L554-3 main_#t~short12#1 := main_#t~short10#1; 313#L554-4 assume main_#t~short12#1;call main_#t~mem11#1 := read~int(main_~z~0#1.base, main_~z~0#1.offset, 4);main_#t~short12#1 := main_#t~mem11#1 > 0; 319#L554-6 assume !!main_#t~short12#1;havoc main_#t~mem8#1;havoc main_#t~mem9#1;havoc main_#t~short10#1;havoc main_#t~mem11#1;havoc main_#t~short12#1;call main_#t~mem13#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);call main_#t~mem14#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 306#L555 assume !(main_#t~mem13#1 > main_#t~mem14#1);havoc main_#t~mem13#1;havoc main_#t~mem14#1;call main_#t~mem18#1 := read~int(main_~z~0#1.base, main_~z~0#1.offset, 4);call write~int(main_#t~mem18#1 - 1, main_~z~0#1.base, main_~z~0#1.offset, 4);havoc main_#t~mem18#1;call write~int(main_#t~nondet19#1, main_~x~0#1.base, main_~x~0#1.offset, 4);havoc main_#t~nondet19#1;call main_#t~mem20#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);call write~int(main_#t~mem20#1 - 1, main_~y~0#1.base, main_~y~0#1.offset, 4);havoc main_#t~mem20#1; 307#L555-2 [2022-11-02 20:06:17,488 INFO L750 eck$LassoCheckResult]: Loop: 307#L555-2 call main_#t~mem8#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short10#1 := main_#t~mem8#1 > 0; 316#L554-1 assume main_#t~short10#1;call main_#t~mem9#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);main_#t~short10#1 := main_#t~mem9#1 > 0; 325#L554-3 main_#t~short12#1 := main_#t~short10#1; 324#L554-4 assume main_#t~short12#1;call main_#t~mem11#1 := read~int(main_~z~0#1.base, main_~z~0#1.offset, 4);main_#t~short12#1 := main_#t~mem11#1 > 0; 323#L554-6 assume !!main_#t~short12#1;havoc main_#t~mem8#1;havoc main_#t~mem9#1;havoc main_#t~short10#1;havoc main_#t~mem11#1;havoc main_#t~short12#1;call main_#t~mem13#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);call main_#t~mem14#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 322#L555 assume main_#t~mem13#1 > main_#t~mem14#1;havoc main_#t~mem13#1;havoc main_#t~mem14#1;call main_#t~mem15#1 := read~int(main_~z~0#1.base, main_~z~0#1.offset, 4);call write~int(main_#t~mem15#1, main_~y~0#1.base, main_~y~0#1.offset, 4);havoc main_#t~mem15#1;call write~int(main_#t~nondet16#1, main_~x~0#1.base, main_~x~0#1.offset, 4);havoc main_#t~nondet16#1;call main_#t~mem17#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);call write~int(main_#t~mem17#1 - 1, main_~z~0#1.base, main_~z~0#1.offset, 4);havoc main_#t~mem17#1; 307#L555-2 [2022-11-02 20:06:17,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:06:17,489 INFO L85 PathProgramCache]: Analyzing trace with hash 177626382, now seen corresponding path program 1 times [2022-11-02 20:06:17,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:06:17,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856368889] [2022-11-02 20:06:17,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:06:17,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:06:17,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:06:17,521 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:06:17,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:06:17,535 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:06:17,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:06:17,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1097577162, now seen corresponding path program 4 times [2022-11-02 20:06:17,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:06:17,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089088092] [2022-11-02 20:06:17,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:06:17,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:06:17,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:06:17,549 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:06:17,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:06:17,558 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:06:17,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:06:17,559 INFO L85 PathProgramCache]: Analyzing trace with hash -692497897, now seen corresponding path program 1 times [2022-11-02 20:06:17,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:06:17,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426335484] [2022-11-02 20:06:17,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:06:17,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:06:17,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:06:18,098 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:06:18,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:06:18,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426335484] [2022-11-02 20:06:18,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426335484] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:06:18,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1739467300] [2022-11-02 20:06:18,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:06:18,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:06:18,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:06:18,101 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:06:18,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-11-02 20:06:18,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:06:18,219 INFO L263 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-02 20:06:18,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:06:18,904 INFO L356 Elim1Store]: treesize reduction 252, result has 37.8 percent of original size [2022-11-02 20:06:18,906 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 6 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 19 case distinctions, treesize of input 462 treesize of output 894 [2022-11-02 20:06:18,981 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 15 [2022-11-02 20:06:19,076 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 19 [2022-11-02 20:06:19,124 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 33 [2022-11-02 20:06:19,380 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 19 [2022-11-02 20:06:19,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:06:19,630 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 20:06:19,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:06:19,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:06:19,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:06:19,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:06:19,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:06:19,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:06:19,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:06:19,687 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 20:06:19,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:06:19,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:06:19,728 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 20:06:19,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:06:19,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:06:19,758 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 20:06:19,762 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 20:06:19,772 INFO L244 Elim1Store]: Index analysis took 193 ms [2022-11-02 20:06:19,824 INFO L356 Elim1Store]: treesize reduction 61, result has 11.6 percent of original size [2022-11-02 20:06:19,824 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 5 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 11 case distinctions, treesize of input 223 treesize of output 690 [2022-11-02 20:06:20,112 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 20:06:20,130 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 20:06:20,130 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 20:06:20,150 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 20:06:20,157 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 20:06:20,157 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 20:06:20,172 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 20:06:20,226 INFO L356 Elim1Store]: treesize reduction 61, result has 11.6 percent of original size [2022-11-02 20:06:20,229 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 11 case distinctions, treesize of input 216 treesize of output 685 [2022-11-02 20:06:20,861 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 20:06:21,017 INFO L356 Elim1Store]: treesize reduction 117, result has 17.6 percent of original size [2022-11-02 20:06:21,018 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 3 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 15 case distinctions, treesize of input 684 treesize of output 788 [2022-11-02 20:06:21,779 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-11-02 20:06:21,821 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-11-02 20:06:21,947 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-11-02 20:06:22,119 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2022-11-02 20:06:22,483 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 971 treesize of output 939 [2022-11-02 20:06:22,897 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 20:06:22,901 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 20:06:22,903 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 75 [2022-11-02 20:06:23,277 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 20:06:23,286 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 20:06:23,288 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 20:06:23,289 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 20:06:23,308 INFO L356 Elim1Store]: treesize reduction 37, result has 17.8 percent of original size [2022-11-02 20:06:23,308 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 3 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 7 case distinctions, treesize of input 144 treesize of output 236 [2022-11-02 20:06:23,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:06:23,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:06:23,564 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 20:06:23,574 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 20:06:23,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:06:23,579 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 20:06:23,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:06:23,581 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 20:06:23,583 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 3 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 236 treesize of output 781 [2022-11-02 20:06:23,722 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 20:06:23,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:06:23,735 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 20:06:23,737 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 20:06:23,737 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 20:06:23,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:06:23,741 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 210 treesize of output 176 [2022-11-02 20:06:23,792 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 20:06:23,796 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 20:06:23,797 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 57 [2022-11-02 20:06:23,825 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-11-02 20:06:23,972 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 20:06:23,986 INFO L356 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-11-02 20:06:23,986 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 86 treesize of output 53 [2022-11-02 20:06:24,039 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-11-02 20:06:24,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:06:24,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:06:24,402 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 20:06:24,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:06:24,405 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 160 treesize of output 119 [2022-11-02 20:06:24,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:06:24,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:06:24,476 INFO L356 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-02 20:06:24,477 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 160 treesize of output 119 [2022-11-02 20:06:24,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:06:24,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:06:24,529 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 112 treesize of output 72 [2022-11-02 20:06:24,555 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-11-02 20:06:24,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:06:24,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:06:24,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:06:24,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:06:24,583 INFO L356 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-02 20:06:24,584 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 160 treesize of output 119 [2022-11-02 20:06:25,206 INFO L356 Elim1Store]: treesize reduction 48, result has 2.0 percent of original size [2022-11-02 20:06:25,206 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 272 treesize of output 114 [2022-11-02 20:06:25,217 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 70 [2022-11-02 20:06:25,230 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2022-11-02 20:06:25,723 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-02 20:06:25,724 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 274 treesize of output 254 [2022-11-02 20:06:25,768 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-02 20:06:25,773 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-02 20:06:25,784 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:06:25,784 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:06:25,833 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 169 treesize of output 165 [2022-11-02 20:06:25,840 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 38 [2022-11-02 20:06:25,864 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:06:25,864 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1739467300] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:06:25,865 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 20:06:25,865 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2022-11-02 20:06:25,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416673123] [2022-11-02 20:06:25,865 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 20:06:26,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:06:26,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-02 20:06:26,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=66, Unknown=1, NotChecked=0, Total=90 [2022-11-02 20:06:26,183 INFO L87 Difference]: Start difference. First operand 20 states and 23 transitions. cyclomatic complexity: 5 Second operand has 10 states, 9 states have (on average 4.333333333333333) internal successors, (39), 10 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:06:26,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:06:26,324 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2022-11-02 20:06:26,324 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 22 transitions. [2022-11-02 20:06:26,325 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2022-11-02 20:06:26,326 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 20 states and 22 transitions. [2022-11-02 20:06:26,326 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2022-11-02 20:06:26,326 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2022-11-02 20:06:26,326 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 22 transitions. [2022-11-02 20:06:26,326 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-02 20:06:26,326 INFO L218 hiAutomatonCegarLoop]: Abstraction has 20 states and 22 transitions. [2022-11-02 20:06:26,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 22 transitions. [2022-11-02 20:06:26,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 15. [2022-11-02 20:06:26,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 1.1333333333333333) internal successors, (17), 14 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:06:26,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2022-11-02 20:06:26,328 INFO L240 hiAutomatonCegarLoop]: Abstraction has 15 states and 17 transitions. [2022-11-02 20:06:26,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:06:26,329 INFO L428 stractBuchiCegarLoop]: Abstraction has 15 states and 17 transitions. [2022-11-02 20:06:26,329 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-11-02 20:06:26,330 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 17 transitions. [2022-11-02 20:06:26,330 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2022-11-02 20:06:26,330 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:06:26,330 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:06:26,330 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-11-02 20:06:26,330 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2022-11-02 20:06:26,331 INFO L748 eck$LassoCheckResult]: Stem: 449#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 450#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~malloc4#1.base, main_#t~malloc4#1.offset, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~mem13#1, main_#t~mem14#1, main_#t~mem15#1, main_#t~nondet16#1, main_#t~mem17#1, main_#t~mem18#1, main_#t~nondet19#1, main_#t~mem20#1, main_#t~mem8#1, main_#t~mem9#1, main_#t~short10#1, main_#t~mem11#1, main_#t~short12#1, main_~x~0#1.base, main_~x~0#1.offset, main_~y~0#1.base, main_~y~0#1.offset, main_~z~0#1.base, main_~z~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~x~0#1.base, main_~x~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~y~0#1.base, main_~y~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;call main_#t~malloc4#1.base, main_#t~malloc4#1.offset := #Ultimate.allocOnStack(4);main_~z~0#1.base, main_~z~0#1.offset := main_#t~malloc4#1.base, main_#t~malloc4#1.offset;call write~int(main_#t~nondet5#1, main_~x~0#1.base, main_~x~0#1.offset, 4);havoc main_#t~nondet5#1;call write~int(main_#t~nondet6#1, main_~y~0#1.base, main_~y~0#1.offset, 4);havoc main_#t~nondet6#1;call write~int(main_#t~nondet7#1, main_~z~0#1.base, main_~z~0#1.offset, 4);havoc main_#t~nondet7#1; 457#L555-2 call main_#t~mem8#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short10#1 := main_#t~mem8#1 > 0; 455#L554-1 [2022-11-02 20:06:26,331 INFO L750 eck$LassoCheckResult]: Loop: 455#L554-1 assume main_#t~short10#1;call main_#t~mem9#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);main_#t~short10#1 := main_#t~mem9#1 > 0; 451#L554-3 main_#t~short12#1 := main_#t~short10#1; 452#L554-4 assume main_#t~short12#1;call main_#t~mem11#1 := read~int(main_~z~0#1.base, main_~z~0#1.offset, 4);main_#t~short12#1 := main_#t~mem11#1 > 0; 458#L554-6 assume !!main_#t~short12#1;havoc main_#t~mem8#1;havoc main_#t~mem9#1;havoc main_#t~short10#1;havoc main_#t~mem11#1;havoc main_#t~short12#1;call main_#t~mem13#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);call main_#t~mem14#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 445#L555 assume !(main_#t~mem13#1 > main_#t~mem14#1);havoc main_#t~mem13#1;havoc main_#t~mem14#1;call main_#t~mem18#1 := read~int(main_~z~0#1.base, main_~z~0#1.offset, 4);call write~int(main_#t~mem18#1 - 1, main_~z~0#1.base, main_~z~0#1.offset, 4);havoc main_#t~mem18#1;call write~int(main_#t~nondet19#1, main_~x~0#1.base, main_~x~0#1.offset, 4);havoc main_#t~nondet19#1;call main_#t~mem20#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);call write~int(main_#t~mem20#1 - 1, main_~y~0#1.base, main_~y~0#1.offset, 4);havoc main_#t~mem20#1; 446#L555-2 call main_#t~mem8#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short10#1 := main_#t~mem8#1 > 0; 455#L554-1 [2022-11-02 20:06:26,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:06:26,331 INFO L85 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2022-11-02 20:06:26,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:06:26,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282237574] [2022-11-02 20:06:26,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:06:26,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:06:26,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:06:26,345 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:06:26,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:06:26,353 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:06:26,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:06:26,353 INFO L85 PathProgramCache]: Analyzing trace with hash 1187255894, now seen corresponding path program 1 times [2022-11-02 20:06:26,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:06:26,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444396710] [2022-11-02 20:06:26,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:06:26,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:06:26,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:06:26,364 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:06:26,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:06:26,370 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:06:26,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:06:26,371 INFO L85 PathProgramCache]: Analyzing trace with hash 1211450553, now seen corresponding path program 2 times [2022-11-02 20:06:26,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:06:26,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800734543] [2022-11-02 20:06:26,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:06:26,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:06:26,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:06:26,394 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:06:26,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:06:26,406 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:06:27,850 INFO L210 LassoAnalysis]: Preferences: [2022-11-02 20:06:27,850 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-02 20:06:27,850 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-02 20:06:27,850 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-02 20:06:27,850 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-02 20:06:27,850 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:06:27,850 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-02 20:06:27,850 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-02 20:06:27,850 INFO L133 ssoRankerPreferences]: Filename of dumped script: Ben-Amram-2010LMCS-Ex2.3-alloca.i_Iteration5_Lasso [2022-11-02 20:06:27,851 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-02 20:06:27,851 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-02 20:06:27,860 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:06:28,519 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:06:28,522 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:06:28,524 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:06:28,529 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:06:28,531 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:06:28,533 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:06:28,536 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:06:28,539 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:06:28,541 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:06:28,544 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:06:28,547 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:06:28,549 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:06:28,551 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:06:28,554 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:06:28,557 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:06:28,559 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:06:28,562 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:06:28,564 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:06:28,566 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:06:28,573 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:06:29,172 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-02 20:06:29,172 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-02 20:06:29,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:06:29,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:06:29,176 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:06:29,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-11-02 20:06:29,210 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 20:06:29,220 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:06:29,220 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2022-11-02 20:06:29,221 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-11-02 20:06:29,221 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:06:29,248 INFO L401 nArgumentSynthesizer]: We have 20 Motzkin's Theorem applications. [2022-11-02 20:06:29,249 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2022-11-02 20:06:29,283 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:06:29,345 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2022-11-02 20:06:29,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:06:29,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:06:29,347 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:06:29,349 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 20:06:29,361 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:06:29,361 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:06:29,361 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:06:29,361 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:06:29,363 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-02 20:06:29,363 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-02 20:06:29,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2022-11-02 20:06:29,372 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:06:29,392 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2022-11-02 20:06:29,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:06:29,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:06:29,394 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:06:29,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2022-11-02 20:06:29,396 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 20:06:29,406 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:06:29,406 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:06:29,406 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:06:29,406 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:06:29,409 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-02 20:06:29,409 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-02 20:06:29,414 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:06:29,435 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2022-11-02 20:06:29,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:06:29,436 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:06:29,437 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:06:29,438 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 20:06:29,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2022-11-02 20:06:29,448 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:06:29,448 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:06:29,448 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:06:29,448 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:06:29,453 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-02 20:06:29,453 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-02 20:06:29,462 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:06:29,487 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2022-11-02 20:06:29,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:06:29,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:06:29,488 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:06:29,499 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 20:06:29,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2022-11-02 20:06:29,509 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:06:29,509 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:06:29,509 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:06:29,509 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:06:29,511 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-02 20:06:29,511 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-02 20:06:29,517 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-02 20:06:29,524 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2022-11-02 20:06:29,524 INFO L444 ModelExtractionUtils]: 2 out of 7 variables were initially zero. Simplification set additionally 3 variables to zero. [2022-11-02 20:06:29,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:06:29,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:06:29,526 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:06:29,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2022-11-02 20:06:29,528 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-02 20:06:29,539 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2022-11-02 20:06:29,539 INFO L513 LassoAnalysis]: Proved termination. [2022-11-02 20:06:29,539 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~z~0#1.base) ULTIMATE.start_main_~z~0#1.offset)_2) = 1*v_rep(select (select #memory_int ULTIMATE.start_main_~z~0#1.base) ULTIMATE.start_main_~z~0#1.offset)_2 Supporting invariants [] [2022-11-02 20:06:29,561 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2022-11-02 20:06:29,674 INFO L156 tatePredicateManager]: 20 out of 24 supporting invariants were superfluous and have been removed [2022-11-02 20:06:29,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:06:29,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:06:29,734 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-02 20:06:29,735 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:06:29,753 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 12 [2022-11-02 20:06:29,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:06:29,781 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-02 20:06:29,782 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:06:29,913 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 28 [2022-11-02 20:06:29,932 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-02 20:06:29,934 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 27 [2022-11-02 20:06:29,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:06:29,967 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 4 loop predicates [2022-11-02 20:06:29,968 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 17 transitions. cyclomatic complexity: 4 Second operand has 7 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 7 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:06:30,046 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 17 transitions. cyclomatic complexity: 4. Second operand has 7 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 7 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 37 states and 40 transitions. Complement of second has 10 states. [2022-11-02 20:06:30,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 3 non-accepting loop states 1 accepting loop states [2022-11-02 20:06:30,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 7 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:06:30,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 10 transitions. [2022-11-02 20:06:30,052 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 10 transitions. Stem has 3 letters. Loop has 6 letters. [2022-11-02 20:06:30,053 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:06:30,053 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 10 transitions. Stem has 9 letters. Loop has 6 letters. [2022-11-02 20:06:30,053 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:06:30,053 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 10 transitions. Stem has 3 letters. Loop has 12 letters. [2022-11-02 20:06:30,056 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:06:30,056 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 40 transitions. [2022-11-02 20:06:30,057 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2022-11-02 20:06:30,057 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 20 states and 21 transitions. [2022-11-02 20:06:30,057 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2022-11-02 20:06:30,057 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2022-11-02 20:06:30,058 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 21 transitions. [2022-11-02 20:06:30,058 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-02 20:06:30,058 INFO L218 hiAutomatonCegarLoop]: Abstraction has 20 states and 21 transitions. [2022-11-02 20:06:30,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 21 transitions. [2022-11-02 20:06:30,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 15. [2022-11-02 20:06:30,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 14 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:06:30,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2022-11-02 20:06:30,062 INFO L240 hiAutomatonCegarLoop]: Abstraction has 15 states and 16 transitions. [2022-11-02 20:06:30,062 INFO L428 stractBuchiCegarLoop]: Abstraction has 15 states and 16 transitions. [2022-11-02 20:06:30,062 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-11-02 20:06:30,063 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 16 transitions. [2022-11-02 20:06:30,063 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2022-11-02 20:06:30,063 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:06:30,063 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:06:30,064 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:06:30,064 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2022-11-02 20:06:30,064 INFO L748 eck$LassoCheckResult]: Stem: 659#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 660#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~malloc4#1.base, main_#t~malloc4#1.offset, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~mem13#1, main_#t~mem14#1, main_#t~mem15#1, main_#t~nondet16#1, main_#t~mem17#1, main_#t~mem18#1, main_#t~nondet19#1, main_#t~mem20#1, main_#t~mem8#1, main_#t~mem9#1, main_#t~short10#1, main_#t~mem11#1, main_#t~short12#1, main_~x~0#1.base, main_~x~0#1.offset, main_~y~0#1.base, main_~y~0#1.offset, main_~z~0#1.base, main_~z~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~x~0#1.base, main_~x~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~y~0#1.base, main_~y~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;call main_#t~malloc4#1.base, main_#t~malloc4#1.offset := #Ultimate.allocOnStack(4);main_~z~0#1.base, main_~z~0#1.offset := main_#t~malloc4#1.base, main_#t~malloc4#1.offset;call write~int(main_#t~nondet5#1, main_~x~0#1.base, main_~x~0#1.offset, 4);havoc main_#t~nondet5#1;call write~int(main_#t~nondet6#1, main_~y~0#1.base, main_~y~0#1.offset, 4);havoc main_#t~nondet6#1;call write~int(main_#t~nondet7#1, main_~z~0#1.base, main_~z~0#1.offset, 4);havoc main_#t~nondet7#1; 665#L555-2 call main_#t~mem8#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short10#1 := main_#t~mem8#1 > 0; 666#L554-1 assume main_#t~short10#1;call main_#t~mem9#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);main_#t~short10#1 := main_#t~mem9#1 > 0; 663#L554-3 main_#t~short12#1 := main_#t~short10#1; 664#L554-4 assume main_#t~short12#1;call main_#t~mem11#1 := read~int(main_~z~0#1.base, main_~z~0#1.offset, 4);main_#t~short12#1 := main_#t~mem11#1 > 0; 669#L554-6 assume !!main_#t~short12#1;havoc main_#t~mem8#1;havoc main_#t~mem9#1;havoc main_#t~short10#1;havoc main_#t~mem11#1;havoc main_#t~short12#1;call main_#t~mem13#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);call main_#t~mem14#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 657#L555 assume main_#t~mem13#1 > main_#t~mem14#1;havoc main_#t~mem13#1;havoc main_#t~mem14#1;call main_#t~mem15#1 := read~int(main_~z~0#1.base, main_~z~0#1.offset, 4);call write~int(main_#t~mem15#1, main_~y~0#1.base, main_~y~0#1.offset, 4);havoc main_#t~mem15#1;call write~int(main_#t~nondet16#1, main_~x~0#1.base, main_~x~0#1.offset, 4);havoc main_#t~nondet16#1;call main_#t~mem17#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);call write~int(main_#t~mem17#1 - 1, main_~z~0#1.base, main_~z~0#1.offset, 4);havoc main_#t~mem17#1; 658#L555-2 call main_#t~mem8#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short10#1 := main_#t~mem8#1 > 0; 667#L554-1 [2022-11-02 20:06:30,064 INFO L750 eck$LassoCheckResult]: Loop: 667#L554-1 assume main_#t~short10#1;call main_#t~mem9#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);main_#t~short10#1 := main_#t~mem9#1 > 0; 661#L554-3 main_#t~short12#1 := main_#t~short10#1; 662#L554-4 assume main_#t~short12#1;call main_#t~mem11#1 := read~int(main_~z~0#1.base, main_~z~0#1.offset, 4);main_#t~short12#1 := main_#t~mem11#1 > 0; 668#L554-6 assume !!main_#t~short12#1;havoc main_#t~mem8#1;havoc main_#t~mem9#1;havoc main_#t~short10#1;havoc main_#t~mem11#1;havoc main_#t~short12#1;call main_#t~mem13#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);call main_#t~mem14#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 655#L555 assume !(main_#t~mem13#1 > main_#t~mem14#1);havoc main_#t~mem13#1;havoc main_#t~mem14#1;call main_#t~mem18#1 := read~int(main_~z~0#1.base, main_~z~0#1.offset, 4);call write~int(main_#t~mem18#1 - 1, main_~z~0#1.base, main_~z~0#1.offset, 4);havoc main_#t~mem18#1;call write~int(main_#t~nondet19#1, main_~x~0#1.base, main_~x~0#1.offset, 4);havoc main_#t~nondet19#1;call main_#t~mem20#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);call write~int(main_#t~mem20#1 - 1, main_~y~0#1.base, main_~y~0#1.offset, 4);havoc main_#t~mem20#1; 656#L555-2 call main_#t~mem8#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short10#1 := main_#t~mem8#1 > 0; 667#L554-1 [2022-11-02 20:06:30,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:06:30,065 INFO L85 PathProgramCache]: Analyzing trace with hash 1211450491, now seen corresponding path program 2 times [2022-11-02 20:06:30,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:06:30,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183200998] [2022-11-02 20:06:30,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:06:30,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:06:30,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:06:30,091 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:06:30,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:06:30,105 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:06:30,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:06:30,106 INFO L85 PathProgramCache]: Analyzing trace with hash 1187255894, now seen corresponding path program 2 times [2022-11-02 20:06:30,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:06:30,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619453323] [2022-11-02 20:06:30,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:06:30,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:06:30,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:06:30,117 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:06:30,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:06:30,123 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:06:30,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:06:30,124 INFO L85 PathProgramCache]: Analyzing trace with hash 816748368, now seen corresponding path program 2 times [2022-11-02 20:06:30,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:06:30,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902952028] [2022-11-02 20:06:30,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:06:30,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:06:30,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:06:30,150 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:06:30,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:06:30,168 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:06:31,782 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2022-11-02 20:06:32,515 INFO L210 LassoAnalysis]: Preferences: [2022-11-02 20:06:32,515 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-02 20:06:32,515 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-02 20:06:32,515 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-02 20:06:32,515 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-02 20:06:32,515 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:06:32,516 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-02 20:06:32,516 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-02 20:06:32,516 INFO L133 ssoRankerPreferences]: Filename of dumped script: Ben-Amram-2010LMCS-Ex2.3-alloca.i_Iteration6_Lasso [2022-11-02 20:06:32,516 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-02 20:06:32,516 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-02 20:06:32,520 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:06:32,525 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:06:32,527 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:06:32,530 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:06:32,533 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:06:32,535 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:06:32,538 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:06:32,540 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:06:33,231 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:06:33,233 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:06:33,235 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:06:33,241 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:06:33,242 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:06:33,244 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:06:33,246 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:06:33,248 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:06:33,250 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:06:33,252 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:06:33,254 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:06:33,256 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:06:33,262 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:06:33,842 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-02 20:06:33,842 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-02 20:06:33,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:06:33,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:06:33,845 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:06:33,854 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 20:06:33,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2022-11-02 20:06:33,864 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:06:33,864 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:06:33,864 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:06:33,864 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:06:33,865 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-02 20:06:33,865 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-02 20:06:33,868 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:06:33,928 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2022-11-02 20:06:33,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:06:33,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:06:33,929 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:06:33,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2022-11-02 20:06:33,931 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 20:06:33,941 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:06:33,941 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 20:06:33,941 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:06:33,941 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:06:33,941 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:06:33,941 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 20:06:33,942 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 20:06:33,955 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:06:34,003 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2022-11-02 20:06:34,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:06:34,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:06:34,004 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:06:34,005 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2022-11-02 20:06:34,005 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 20:06:34,017 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:06:34,017 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 20:06:34,017 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:06:34,017 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:06:34,017 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:06:34,018 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 20:06:34,018 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 20:06:34,023 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:06:34,046 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2022-11-02 20:06:34,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:06:34,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:06:34,048 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:06:34,050 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 20:06:34,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2022-11-02 20:06:34,060 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:06:34,060 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:06:34,060 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:06:34,061 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:06:34,062 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-02 20:06:34,062 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-02 20:06:34,065 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:06:34,103 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2022-11-02 20:06:34,103 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:06:34,103 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:06:34,104 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:06:34,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2022-11-02 20:06:34,107 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 20:06:34,117 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:06:34,117 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 20:06:34,117 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:06:34,117 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:06:34,118 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:06:34,118 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 20:06:34,118 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 20:06:34,119 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:06:34,139 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2022-11-02 20:06:34,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:06:34,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:06:34,141 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:06:34,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2022-11-02 20:06:34,142 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 20:06:34,152 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:06:34,152 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:06:34,152 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:06:34,152 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:06:34,154 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-02 20:06:34,155 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-02 20:06:34,164 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:06:34,229 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2022-11-02 20:06:34,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:06:34,229 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:06:34,230 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:06:34,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2022-11-02 20:06:34,232 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 20:06:34,242 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:06:34,242 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 20:06:34,242 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:06:34,242 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:06:34,242 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:06:34,243 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 20:06:34,243 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 20:06:34,260 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:06:34,306 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2022-11-02 20:06:34,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:06:34,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:06:34,307 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:06:34,325 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2022-11-02 20:06:34,325 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 20:06:34,335 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:06:34,335 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:06:34,335 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:06:34,335 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:06:34,338 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-02 20:06:34,338 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-02 20:06:34,345 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:06:34,402 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2022-11-02 20:06:34,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:06:34,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:06:34,403 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:06:34,405 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2022-11-02 20:06:34,405 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 20:06:34,416 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:06:34,416 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:06:34,416 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:06:34,416 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:06:34,426 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-02 20:06:34,426 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-02 20:06:34,448 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:06:34,509 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2022-11-02 20:06:34,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:06:34,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:06:34,511 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:06:34,513 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 20:06:34,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2022-11-02 20:06:34,523 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:06:34,523 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:06:34,524 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:06:34,524 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:06:34,528 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-02 20:06:34,528 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-02 20:06:34,537 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:06:34,606 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2022-11-02 20:06:34,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:06:34,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:06:34,607 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:06:34,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2022-11-02 20:06:34,609 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 20:06:34,619 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:06:34,619 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2022-11-02 20:06:34,619 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-11-02 20:06:34,619 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:06:34,639 INFO L401 nArgumentSynthesizer]: We have 20 Motzkin's Theorem applications. [2022-11-02 20:06:34,639 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2022-11-02 20:06:34,696 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-02 20:06:34,747 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2022-11-02 20:06:34,747 INFO L444 ModelExtractionUtils]: 16 out of 36 variables were initially zero. Simplification set additionally 18 variables to zero. [2022-11-02 20:06:34,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:06:34,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:06:34,748 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:06:34,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2022-11-02 20:06:34,750 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-02 20:06:34,762 INFO L438 nArgumentSynthesizer]: Removed 4 redundant supporting invariants from a total of 4. [2022-11-02 20:06:34,762 INFO L513 LassoAnalysis]: Proved termination. [2022-11-02 20:06:34,762 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~z~0#1.base) ULTIMATE.start_main_~z~0#1.offset)_3) = 1*v_rep(select (select #memory_int ULTIMATE.start_main_~z~0#1.base) ULTIMATE.start_main_~z~0#1.offset)_3 Supporting invariants [] [2022-11-02 20:06:34,785 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2022-11-02 20:06:34,886 INFO L156 tatePredicateManager]: 20 out of 24 supporting invariants were superfluous and have been removed [2022-11-02 20:06:34,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:06:34,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:06:34,972 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-02 20:06:34,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:06:34,993 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 12 [2022-11-02 20:06:35,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:06:35,069 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-02 20:06:35,070 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:06:35,183 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 25 [2022-11-02 20:06:35,197 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-02 20:06:35,197 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 34 [2022-11-02 20:06:35,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:06:35,225 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 4 loop predicates [2022-11-02 20:06:35,225 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 16 transitions. cyclomatic complexity: 3 Second operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:06:35,283 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 16 transitions. cyclomatic complexity: 3. Second operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 24 states and 25 transitions. Complement of second has 10 states. [2022-11-02 20:06:35,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 3 non-accepting loop states 1 accepting loop states [2022-11-02 20:06:35,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:06:35,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 7 transitions. [2022-11-02 20:06:35,285 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 7 transitions. Stem has 9 letters. Loop has 6 letters. [2022-11-02 20:06:35,285 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:06:35,285 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-02 20:06:35,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:06:35,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:06:35,350 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-02 20:06:35,351 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:06:35,367 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 12 [2022-11-02 20:06:35,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:06:35,446 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-02 20:06:35,447 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:06:35,551 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 28 [2022-11-02 20:06:35,566 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-02 20:06:35,567 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 27 [2022-11-02 20:06:35,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:06:35,600 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 4 loop predicates [2022-11-02 20:06:35,600 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 16 transitions. cyclomatic complexity: 3 Second operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:06:35,664 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 16 transitions. cyclomatic complexity: 3. Second operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 24 states and 25 transitions. Complement of second has 10 states. [2022-11-02 20:06:35,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 3 non-accepting loop states 1 accepting loop states [2022-11-02 20:06:35,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:06:35,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 7 transitions. [2022-11-02 20:06:35,666 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 7 transitions. Stem has 9 letters. Loop has 6 letters. [2022-11-02 20:06:35,666 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:06:35,666 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-02 20:06:35,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:06:35,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:06:35,760 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-02 20:06:35,761 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:06:35,783 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 12 [2022-11-02 20:06:35,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:06:35,868 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-02 20:06:35,869 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:06:35,973 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2022-11-02 20:06:36,040 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 25 [2022-11-02 20:06:36,056 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-02 20:06:36,057 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 34 [2022-11-02 20:06:36,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:06:36,090 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 4 loop predicates [2022-11-02 20:06:36,091 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 16 transitions. cyclomatic complexity: 3 Second operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:06:36,162 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 16 transitions. cyclomatic complexity: 3. Second operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 26 states and 28 transitions. Complement of second has 11 states. [2022-11-02 20:06:36,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 3 non-accepting loop states 1 accepting loop states [2022-11-02 20:06:36,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:06:36,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 17 transitions. [2022-11-02 20:06:36,167 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 17 transitions. Stem has 9 letters. Loop has 6 letters. [2022-11-02 20:06:36,169 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:06:36,170 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 17 transitions. Stem has 15 letters. Loop has 6 letters. [2022-11-02 20:06:36,172 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:06:36,172 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 17 transitions. Stem has 9 letters. Loop has 12 letters. [2022-11-02 20:06:36,173 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:06:36,173 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 28 transitions. [2022-11-02 20:06:36,176 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-02 20:06:36,179 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 0 states and 0 transitions. [2022-11-02 20:06:36,179 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-02 20:06:36,179 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-02 20:06:36,179 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-02 20:06:36,180 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:06:36,180 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-02 20:06:36,180 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-02 20:06:36,180 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-02 20:06:36,181 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2022-11-02 20:06:36,181 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-11-02 20:06:36,181 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-02 20:06:36,181 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-11-02 20:06:36,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 02.11 08:06:36 BoogieIcfgContainer [2022-11-02 20:06:36,188 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-02 20:06:36,190 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-02 20:06:36,190 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-02 20:06:36,190 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-02 20:06:36,190 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:06:10" (3/4) ... [2022-11-02 20:06:36,193 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-02 20:06:36,193 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-02 20:06:36,194 INFO L158 Benchmark]: Toolchain (without parser) took 26613.94ms. Allocated memory was 119.5MB in the beginning and 262.1MB in the end (delta: 142.6MB). Free memory was 85.2MB in the beginning and 203.6MB in the end (delta: -118.4MB). Peak memory consumption was 24.5MB. Max. memory is 16.1GB. [2022-11-02 20:06:36,195 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 81.8MB. Free memory is still 33.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:06:36,195 INFO L158 Benchmark]: CACSL2BoogieTranslator took 492.69ms. Allocated memory is still 119.5MB. Free memory was 84.9MB in the beginning and 89.5MB in the end (delta: -4.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-02 20:06:36,195 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.36ms. Allocated memory is still 119.5MB. Free memory was 89.5MB in the beginning and 87.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 20:06:36,198 INFO L158 Benchmark]: Boogie Preprocessor took 26.69ms. Allocated memory is still 119.5MB. Free memory was 87.7MB in the beginning and 86.5MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 20:06:36,198 INFO L158 Benchmark]: RCFGBuilder took 388.52ms. Allocated memory is still 119.5MB. Free memory was 86.5MB in the beginning and 73.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-02 20:06:36,199 INFO L158 Benchmark]: BuchiAutomizer took 25646.52ms. Allocated memory was 119.5MB in the beginning and 262.1MB in the end (delta: 142.6MB). Free memory was 73.5MB in the beginning and 204.7MB in the end (delta: -131.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-02 20:06:36,199 INFO L158 Benchmark]: Witness Printer took 3.84ms. Allocated memory is still 262.1MB. Free memory was 204.7MB in the beginning and 203.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 20:06:36,201 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 81.8MB. Free memory is still 33.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 492.69ms. Allocated memory is still 119.5MB. Free memory was 84.9MB in the beginning and 89.5MB in the end (delta: -4.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.36ms. Allocated memory is still 119.5MB. Free memory was 89.5MB in the beginning and 87.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.69ms. Allocated memory is still 119.5MB. Free memory was 87.7MB in the beginning and 86.5MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 388.52ms. Allocated memory is still 119.5MB. Free memory was 86.5MB in the beginning and 73.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 25646.52ms. Allocated memory was 119.5MB in the beginning and 262.1MB in the end (delta: 142.6MB). Free memory was 73.5MB in the beginning and 204.7MB in the end (delta: -131.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Witness Printer took 3.84ms. Allocated memory is still 262.1MB. Free memory was 204.7MB in the beginning and 203.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. 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 6 terminating modules (3 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function unknown-#memory_int-unknown[y][y] + -1 * unknown-#memory_int-unknown[x][x] + unknown-#memory_int-unknown[z][z] and consists of 6 locations. One deterministic module has affine ranking function unknown-#memory_int-unknown[z][z] and consists of 6 locations. One nondeterministic module has affine ranking function unknown-#memory_int-unknown[z][z] and consists of 6 locations. 3 modules have a trivial ranking function, the largest among these consists of 10 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 25.5s and 7 iterations. TraceHistogramMax:2. Analysis of lassos took 23.0s. Construction of modules took 0.2s. Büchi inclusion checks took 2.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 12 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 46 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 46 mSDsluCounter, 94 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 6 IncrementalHoareTripleChecker+Unchecked, 50 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 165 IncrementalHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 44 mSDtfsCounter, 165 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc2 concLT0 SILN0 SILU1 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital568 mio100 ax104 hnf100 lsp93 ukn45 mio100 lsp36 div100 bol100 ite100 ukn100 eq176 hnf89 smp94 dnf128 smp100 tf100 neg97 sie106 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 111ms VariablesStem: 6 VariablesLoop: 8 DisjunctsStem: 2 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 20 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-11-02 20:06:36,244 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2022-11-02 20:06:36,455 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02dca29f-3a64-4d50-85c4-5a9933263f6e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE